)]}' { "log": [ { "commit": "f715729ee4cb666f51749f6cd86d06fff1e6e17b", "tree": "cf8f2c6c2d90441d6a978915b5d7eb0b19981f44", "parents": [ "8273548c5455e3ae27e905a77bad277535837329", "61875f30daf60305712e25b209ef41ced2635bad" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 10 12:31:43 2013 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 10 12:31:43 2013 -0700" }, "message": "Merge tag \u0027random_for_linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random\n\nPull /dev/random changes from Ted Ts\u0027o:\n \"These patches are designed to enable improvements to /dev/random for\n non-x86 platforms, in particular MIPS and ARM\"\n\n* tag \u0027random_for_linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random:\n random: allow architectures to optionally define random_get_entropy()\n random: run random_int_secret_init() run after all late_initcalls\n" }, { "commit": "47d06e532e95b71c0db3839ebdef3fe8812fca2c", "tree": "f8d5c68cf8b0e4a8dcf107a41aa46f5aa82f7722", "parents": [ "6e4664525b1db28f8c4e1130957f70a94c19213e" ], "author": { "name": "Theodore Ts\u0027o", "email": "tytso@mit.edu", "time": "Tue Sep 10 10:52:35 2013 -0400" }, "committer": { "name": "Theodore Ts\u0027o", "email": "tytso@mit.edu", "time": "Mon Sep 23 06:35:06 2013 -0400" }, "message": "random: run random_int_secret_init() run after all late_initcalls\n\nThe some platforms (e.g., ARM) initializes their clocks as\nlate_initcalls for some unknown reason. So make sure\nrandom_int_secret_init() is run after all of the late_initcalls are\nrun.\n\nCc: stable@vger.kernel.org\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n" }, { "commit": "bff157b3ad4b9f6be0af6987fcd62deaf0f2b799", "tree": "02ae68620a40fefd9ffc2de739a8bb362baa3f08", "parents": [ "8bf5e36d0429e9b8fc2c84966577f10386bd7195", "23774a2f6fee0848503bfb8004eeeb5adef94f5c" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Sep 15 07:15:06 2013 -0400" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Sep 15 07:15:06 2013 -0400" }, "message": "Merge branch \u0027slab/next\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux\n\nPull SLAB update from Pekka Enberg:\n \"Nothing terribly exciting here apart from Christoph\u0027s kmalloc\n unification patches that brings sl[aou]b implementations closer to\n each other\"\n\n* \u0027slab/next\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux:\n slab: Use correct GFP_DMA constant\n slub: remove verify_mem_not_deleted()\n mm/sl[aou]b: Move kmallocXXX functions to common code\n mm, slab_common: add \u0027unlikely\u0027 to size check of kmalloc_slab()\n mm/slub.c: beautify code for removing redundancy \u0027break\u0027 statement.\n slub: Remove unnecessary page NULL check\n slub: don\u0027t use cpu partial pages on UP\n mm/slub: beautify code for 80 column limitation and tab alignment\n mm/slub: remove \u0027per_cpu\u0027 which is useless variable\n" }, { "commit": "6e19eded3684dc184181093af3bff2ff440f5b53", "tree": "f88bf08f0897703bb0d07020e4f921494bd7a434", "parents": [ "16203a7a9422315bc929461503e3a046459ea5ff" ], "author": { "name": "Rob Landley", "email": "rob@landley.net", "time": "Wed Sep 11 14:26:13 2013 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 11 15:59:38 2013 -0700" }, "message": "initmpfs: use initramfs if rootfstype\u003d or root\u003d specified\n\nCommand line option rootfstype\u003dramfs to obtain old initramfs behavior, and\nuse ramfs instead of tmpfs for stub when root\u003d defined (for cosmetic\nreasons).\n\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: Rob Landley \u003crob@landley.net\u003e\nCc: Jeff Layton \u003cjlayton@redhat.com\u003e\nCc: Jens Axboe \u003caxboe@kernel.dk\u003e\nCc: Stephen Warren \u003cswarren@nvidia.com\u003e\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: Jim Cromie \u003cjim.cromie@gmail.com\u003e\nCc: Sam Ravnborg \u003csam@ravnborg.org\u003e\nCc: Greg Kroah-Hartman \u003cgregkh@linuxfoundation.org\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Alexander Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: \"H. Peter Anvin\" \u003chpa@zytor.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "16203a7a9422315bc929461503e3a046459ea5ff", "tree": "f32de38261ac95e4ac3467595a3f7be445b02797", "parents": [ "57f150a58c40cda598c31af8bceb8598f43c3e5f" ], "author": { "name": "Rob Landley", "email": "rob@landley.net", "time": "Wed Sep 11 14:26:12 2013 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 11 15:59:37 2013 -0700" }, "message": "initmpfs: make rootfs use tmpfs when CONFIG_TMPFS enabled\n\nConditionally call the appropriate fs_init function and fill_super\nfunctions. Add a use once guard to shmem_init() to simply succeed on a\nsecond call.\n\n(Note that IS_ENABLED() is a compile time constant so dead code\nelimination removes unused function calls when CONFIG_TMPFS is disabled.)\n\nSigned-off-by: Rob Landley \u003crob@landley.net\u003e\nCc: Jeff Layton \u003cjlayton@redhat.com\u003e\nCc: Jens Axboe \u003caxboe@kernel.dk\u003e\nCc: Stephen Warren \u003cswarren@nvidia.com\u003e\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: Jim Cromie \u003cjim.cromie@gmail.com\u003e\nCc: Sam Ravnborg \u003csam@ravnborg.org\u003e\nCc: Greg Kroah-Hartman \u003cgregkh@linuxfoundation.org\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Alexander Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: \"H. Peter Anvin\" \u003chpa@zytor.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "57f150a58c40cda598c31af8bceb8598f43c3e5f", "tree": "fde3e7fc48c97f0db5b3975fd74e12773f423fe2", "parents": [ "4bbee76bc986af326be0a84ad661000cf89b29f6" ], "author": { "name": "Rob Landley", "email": "rob@landley.net", "time": "Wed Sep 11 14:26:10 2013 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 11 15:59:37 2013 -0700" }, "message": "initmpfs: move rootfs code from fs/ramfs/ to init/\n\nWhen the rootfs code was a wrapper around ramfs, having them in the same\nfile made sense. Now that it can wrap another filesystem type, move it in\nwith the init code instead.\n\nThis also allows a subsequent patch to access rootfstype\u003d command line\narg.\n\nSigned-off-by: Rob Landley \u003crob@landley.net\u003e\nCc: Jeff Layton \u003cjlayton@redhat.com\u003e\nCc: Jens Axboe \u003caxboe@kernel.dk\u003e\nCc: Stephen Warren \u003cswarren@nvidia.com\u003e\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: Jim Cromie \u003cjim.cromie@gmail.com\u003e\nCc: Sam Ravnborg \u003csam@ravnborg.org\u003e\nCc: Greg Kroah-Hartman \u003cgregkh@linuxfoundation.org\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Alexander Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: \"H. Peter Anvin\" \u003chpa@zytor.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "5b4197845ad1a33bc57da7ee5ea41de58c2f86bf", "tree": "87139e25612c78431584f953053ae81ead30b27b", "parents": [ "a22a0fdba4191473581f86c9dd5361cf581521d3", "e062781397e5bebc6c1b8dd4bf466136e13ae4c5" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 11 08:34:25 2013 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 11 08:34:25 2013 -0700" }, "message": "Merge branch \u0027kconfig\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild\n\nPull kconfig updates from Michal Marek:\n \"This is the kconfig part of kbuild for v3.12-rc1:\n - post-3.11 search code fixes and micro-optimizations\n - CONFIG_MODULES is no longer a special case; this is needed to\n eventually fix the bug that using KCONFIG_ALLCONFIG breaks\n allmodconfig\n - long long is used to store hex and int values\n - make silentoldconfig no longer warns when a symbol changes from\n tristate to bool (it\u0027s a job for make oldconfig)\n - scripts/diffconfig updated to work with newer Pythons\n - scripts/config does not rely on GNU sed extensions\"\n\n* \u0027kconfig\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:\n kconfig: do not allow more than one symbol to have \u0027option modules\u0027\n kconfig: regenerate bison parser\n kconfig: do not special-case \u0027MODULES\u0027 symbol\n diffconfig: Update script to support python versions 2.5 through 3.3\n diffconfig: Gracefully exit if the default config files are not present\n modules: do not depend on kconfig to set \u0027modules\u0027 option to symbol MODULES\n kconfig: silence warning when parsing auto.conf when a symbol has changed type\n scripts/config: use sed\u0027s POSIX interface\n kconfig: switch to \"long long\" for sanity\n kconfig: simplify symbol-search code\n kconfig: don\u0027t allocate n+1 elements in temporary array\n kconfig: minor style fixes in symbol-search code\n kconfig/[mn]conf: shorten title in search-box\n kconfig: avoid multiple calls to strlen\n Documentation/kconfig: more concise and straightforward search explanation\n" }, { "commit": "300893b08f3bc7057a7a5f84074090ba66c8b5ca", "tree": "5fc5aef0b9dbab8e47e161303d57e631786c7d17", "parents": [ "45150c43b1b0c16e665fd0a5cdcca128b8192db1", "1d03c6fa88af35e55047a1f2ab116f0fdf2f55aa" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Sep 09 11:19:09 2013 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Sep 09 11:19:09 2013 -0700" }, "message": "Merge tag \u0027xfs-for-linus-v3.12-rc1\u0027 of git://oss.sgi.com/xfs/xfs\n\nPull xfs updates from Ben Myers:\n \"For 3.12-rc1 there are a number of bugfixes in addition to work to\n ease usage of shared code between libxfs and the kernel, the rest of\n the work to enable project and group quotas to be used simultaneously,\n performance optimisations in the log and the CIL, directory entry file\n type support, fixes for log space reservations, some spelling/grammar\n cleanups, and the addition of user namespace support.\n\n - introduce readahead to log recovery\n - add directory entry file type support\n - fix a number of spelling errors in comments\n - introduce new Q_XGETQSTATV quotactl for project quotas\n - add USER_NS support\n - log space reservation rework\n - CIL optimisations\n - kernel/userspace libxfs rework\"\n\n* tag \u0027xfs-for-linus-v3.12-rc1\u0027 of git://oss.sgi.com/xfs/xfs: (112 commits)\n xfs: XFS_MOUNT_QUOTA_ALL needed by userspace\n xfs: dtype changed xfs_dir2_sfe_put_ino to xfs_dir3_sfe_put_ino\n Fix wrong flag ASSERT in xfs_attr_shortform_getvalue\n xfs: finish removing IOP_* macros.\n xfs: inode log reservations are too small\n xfs: check correct status variable for xfs_inobt_get_rec() call\n xfs: inode buffers may not be valid during recovery readahead\n xfs: check LSN ordering for v5 superblocks during recovery\n xfs: btree block LSN escaping to disk uninitialised\n XFS: Assertion failed: first \u003c\u003d last \u0026\u0026 last \u003c BBTOB(bp-\u003eb_length), file: fs/xfs/xfs_trans_buf.c, line: 568\n xfs: fix bad dquot buffer size in log recovery readahead\n xfs: don\u0027t account buffer cancellation during log recovery readahead\n xfs: check for underflow in xfs_iformat_fork()\n xfs: xfs_dir3_sfe_put_ino can be static\n xfs: introduce object readahead to log recovery\n xfs: Simplify xfs_ail_min() with list_first_entry_or_null()\n xfs: Register hotcpu notifier after initialization\n xfs: add xfs sb v4 support for dirent filetype field\n xfs: Add write support for dirent filetype field\n xfs: Add read-only support for dirent filetype field\n ...\n" }, { "commit": "6832d9652f395f7d13003e3884942c40f52ac1fa", "tree": "40555ad5eda9700cb973dac4db136ad97f5e8b19", "parents": [ "228abe73ad67665d71eacd6a8a347dd76b0115ae", "c2e7fcf53c3cb02b4ada1c66a9bc8a4d97d58aba" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 04 09:36:54 2013 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 04 09:36:54 2013 -0700" }, "message": "Merge branch \u0027timers-nohz-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull timers/nohz changes from Ingo Molnar:\n \"It mostly contains fixes and full dynticks off-case optimizations, by\n Frederic Weisbecker\"\n\n* \u0027timers-nohz-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)\n nohz: Include local CPU in full dynticks global kick\n nohz: Optimize full dynticks\u0027s sched hooks with static keys\n nohz: Optimize full dynticks state checks with static keys\n nohz: Rename a few state variables\n vtime: Always debug check snapshot source _before_ updating it\n vtime: Always scale generic vtime accounting results\n vtime: Optimize full dynticks accounting off case with static keys\n vtime: Describe overriden functions in dedicated arch headers\n m68k: hardirq_count() only need preempt_mask.h\n hardirq: Split preempt count mask definitions\n context_tracking: Split low level state headers\n vtime: Fix racy cputime delta update\n vtime: Remove a few unneeded generic vtime state checks\n context_tracking: User/kernel broundary cross trace events\n context_tracking: Optimize context switch off case with static keys\n context_tracking: Optimize guest APIs off case with static key\n context_tracking: Optimize main APIs off case with static key\n context_tracking: Ground setup for static key use\n context_tracking: Remove full dynticks\u0027 hacky dependency on wide context tracking\n nohz: Only enable context tracking on full dynticks CPUs\n ...\n" }, { "commit": "7d992feb7694a21ee81f22894b455dadd5d1c110", "tree": "d0f0961186b1c31c536a26a7f986ad7ca677453b", "parents": [ "6e4664525b1db28f8c4e1130957f70a94c19213e", "25f27ce4a6a4995c8bdd69b4b2180465ed5ad2b8" ], "author": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Tue Sep 03 07:41:11 2013 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Tue Sep 03 07:41:11 2013 +0200" }, "message": "Merge branch \u0027rcu/next\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu\n\nPull RCU updates from Paul E. McKenney:\n\n\"\n * Update RCU documentation. These were posted to LKML at\n https://lkml.org/lkml/2013/8/19/611.\n\n * Miscellaneous fixes. These were posted to LKML at\n https://lkml.org/lkml/2013/8/19/619.\n\n * Full-system idle detection. This is for use by Frederic\n Weisbecker\u0027s adaptive-ticks mechanism. Its purpose is\n to allow the timekeeping CPU to shut off its tick when\n all other CPUs are idle. These were posted to LKML at\n https://lkml.org/lkml/2013/8/19/648.\n\n * Improve rcutorture test coverage. These were posted to LKML at\n https://lkml.org/lkml/2013/8/19/675.\n\"\n\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "07555ac144bbf45b1751340c6ee75da1f4e5756d", "tree": "a2e1ef0f4ab35a078c1dfb604cccba30ddf7dfc0", "parents": [ "4bf93b50fd04118ac7f33a3c2b8a0a1f9fa80bc9" ], "author": { "name": "Michal Hocko", "email": "mhocko@suse.cz", "time": "Thu Aug 22 16:35:46 2013 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Aug 23 09:51:22 2013 -0700" }, "message": "memcg: get rid of swapaccount leftovers\n\nThe swapaccount kernel parameter without any values has been removed by\ncommit a2c8990aed5a (\"memsw: remove noswapaccount kernel parameter\") but\nit seems that we didn\u0027t get rid of all the left overs.\n\nMake sure that menuconfig help text and kernel-parameters.txt are clear\nabout value for the paramter and remove the stalled comment which is not\nvery much useful on its own.\n\nSigned-off-by: Michal Hocko \u003cmhocko@suse.cz\u003e\nReported-by: Gergely Risko \u003cgergely@risko.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "5361471437a97cf493c2aa7d881bbedc9c248415", "tree": "ec88e756a30c31c37cf74eebcc3bc129a08a114c", "parents": [ "c34ac00caefbe49d40058ae7200bd58725cebb45" ], "author": { "name": "James Hogan", "email": "james.hogan@imgtec.com", "time": "Thu Jul 25 15:34:25 2013 +0100" }, "committer": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Sun Aug 18 17:40:25 2013 -0700" }, "message": "rcu: Select IRQ_WORK from TREE_PREEMPT_RCU\n\nTREE_RCU and TREE_PREEMPT_RCU both cause kernel/rcutree.c to be built,\nbut only TREE_RCU selects IRQ_WORK, which can result in an undefined\nreference to irq_work_queue for some (random) configs:\n\nkernel/built-in.o In function `rcu_start_gp_advanced\u0027:\nkernel/rcutree.c:1564: undefined reference to `irq_work_queue\u0027\n\nSelect IRQ_WORK from TREE_PREEMPT_RCU too to fix this.\n\nSigned-off-by: James Hogan \u003cjames.hogan@imgtec.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nCc: Dipankar Sarma \u003cdipankar@in.ibm.com\u003e\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nReviewed-by: Josh Triplett \u003cjosh@joshtriplett.org\u003e\n" }, { "commit": "11097a0367e48954ecf616f9b0df48d86835dd0d", "tree": "a795726b62f68894fad0cc251e43d404f82d4aff", "parents": [ "04b19b773a60d201bc1b187ba7a7c86dc237a27b" ], "author": { "name": "Yann E. MORIN", "email": "yann.morin.1998@free.fr", "time": "Sun Aug 11 16:07:50 2013 +0200" }, "committer": { "name": "Yann E. MORIN", "email": "yann.morin.1998@free.fr", "time": "Thu Aug 15 22:56:08 2013 +0200" }, "message": "modules: do not depend on kconfig to set \u0027modules\u0027 option to symbol MODULES\n\nCurrently, the MODULES symbol is special-cased in different places in the\nkconfig language. For example, if no symbol is defined to enable tristates,\nthen kconfig looks up for a symbol named \u0027MODULES\u0027, and forces the \u0027modules\u0027\noption onto that symbol.\n\nThis causes problems as such:\n - since MODULES is special-cased, reading the configuration with\n KCONFIG_ALLCONFIG set will forcibly set MODULES to be \u0027valid\u0027 (ie.\n it has a valid value), when no such value was previously set. So\n MODULES defaults to \u0027n\u0027 unless it is present in KCONFIG_ALLCONFIG\n - other third-party projects may decide that \u0027MODULES\u0027 plays a different\n role for them\n\nThis has been exposed by cset #cfa98f2e:\n kconfig: do not override symbols already set\nand reported by Stephen in:\n http://marc.info/?l\u003dlinux-next\u0026m\u003d137592137915234\u0026w\u003d2\n\nAs suggested by Sam, we explicitly define the MODULES symbol to be the\ntristate-enabler. This will allow us to drop special-casing of MODULES\nin the kconfig language, later.\n\n(Note: this patch is not a fix to Stephen\u0027s issue, just a first step).\n\nReported-by: Stephen Rothwell \u003csfr@canb.auug.org.au\u003e\nSigned-off-by: yann.morin.1998@free.fr\nCc: Stephen Rothwell \u003csfr@canb.auug.org.au\u003e\nCc: Sam Ravnborg \u003csam@ravnborg.org\u003e\nCc: Michal Marek \u003cmmarek@suse.cz\u003e\nCc: Kevin Hilman \u003ckhilman@linaro.org\u003e\nCc: sedat.dilek@gmail.com\nCc: Theodore Ts\u0027o \u003ctytso@mit.edu\u003e\n" }, { "commit": "d6970d4b726cea6d7a9bc4120814f95c09571fc3", "tree": "7b51ffc34e86c0905158a4a45dd00e5cbb503111", "parents": [ "8c567a7fab6e086a0284eee2db82348521e7120c" ], "author": { "name": "Dwight Engen", "email": "dwight.engen@oracle.com", "time": "Thu Aug 15 14:08:04 2013 -0400" }, "committer": { "name": "Ben Myers", "email": "bpm@sgi.com", "time": "Thu Aug 15 14:27:22 2013 -0500" }, "message": "enable building user namespace with xfs\n\nReviewed-by: Dave Chinner \u003cdchinner@redhat.com\u003e\nReviewed-by: Gao feng \u003cgaofeng@cn.fujitsu.com\u003e\nSigned-off-by: Dwight Engen \u003cdwight.engen@oracle.com\u003e\nSigned-off-by: Ben Myers \u003cbpm@sgi.com\u003e\n\n" }, { "commit": "65f382fd0c8fa483713c0971de9f1dfb4cf1ad9c", "tree": "dec89c43fcfb4934611bae4855293428382856b9", "parents": [ "d84d27a491880b9902b45c09be8d9e9464fb9b74" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Thu Jul 11 19:12:32 2013 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Aug 14 17:12:46 2013 +0200" }, "message": "context_tracking: Ground setup for static key use\n\nPrepare for using a static key in the context tracking subsystem.\nThis will help optimizing the off case on its many users:\n\n* user_enter, user_exit, exception_enter, exception_exit, guest_enter,\n guest_exit, vtime_*()\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nCc: Ingo Molnar \u003cmingo@kernel.org\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Borislav Petkov \u003cbp@alien8.de\u003e\nCc: Li Zhong \u003czhong@linux.vnet.ibm.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Kevin Hilman \u003ckhilman@linaro.org\u003e\n" }, { "commit": "b39ffbf8b14de2e7c1679462313cf32abb7ef463", "tree": "abca8b28c1dc3bb7c14e17a437686d40286e99e5", "parents": [ "d0e0ac9772f8ec520c96ebdd60f00eedf54a46ae" ], "author": { "name": "Uwe Kleine-König", "email": "u.kleine-koenig@pengutronix.de", "time": "Wed Jul 17 16:54:59 2013 +0200" }, "committer": { "name": "Pekka Enberg", "email": "penberg@kernel.org", "time": "Tue Aug 13 09:21:45 2013 +0300" }, "message": "slub: don\u0027t use cpu partial pages on UP\n\ncpu partial pages are used to avoid contention which does not exist in\nthe UP case. So let SLUB_CPU_PARTIAL depend on SMP.\n\nAcked-by: Christoph Lameter \u003ccl@linux.com\u003e\nSigned-off-by: Uwe Kleine-König \u003cu.kleine-koenig@pengutronix.de\u003e\nSigned-off-by: Pekka Enberg \u003cpenberg@kernel.org\u003e\n" }, { "commit": "d84d27a491880b9902b45c09be8d9e9464fb9b74", "tree": "42d5c777dba71b3cfb119d918ff5ae90f4d8a20c", "parents": [ "2e70933866ace52091a3c11a5c104c063ab0c445" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Jul 24 21:59:29 2013 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Aug 13 00:54:34 2013 +0200" }, "message": "context_tracking: Remove full dynticks\u0027 hacky dependency on wide context tracking\n\nNow that the full dynticks subsystem only enables the context tracking\non full dynticks CPUs, lets remove the dependency on CONTEXT_TRACKING_FORCE\n\nThis dependency was a hack to enable the context tracking widely for the\nfull dynticks susbsystem until the latter becomes able to enable it in a\nmore CPU-finegrained fashion.\n\nNow CONTEXT_TRACKING_FORCE only stands for testing on archs that\nwork on support for the context tracking while full dynticks can\u0027t be\nused yet due to unmet dependencies. It simulates a system where all CPUs\nare full dynticks so that RCU user extended quiescent states and dynticks\ncputime accounting can be tested on the given arch.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nCc: Ingo Molnar \u003cmingo@kernel.org\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Borislav Petkov \u003cbp@alien8.de\u003e\nCc: Li Zhong \u003czhong@linux.vnet.ibm.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Kevin Hilman \u003ckhilman@linaro.org\u003e\n" }, { "commit": "0db0628d90125193280eabb501c94feaf48fa9ab", "tree": "0e0ef0c4eac101d25a3bd125c4a9200ac4d294c0", "parents": [ "49fb4c6290c70c418a5c25eee996d6b55ea132d6" ], "author": { "name": "Paul Gortmaker", "email": "paul.gortmaker@windriver.com", "time": "Wed Jun 19 14:53:51 2013 -0400" }, "committer": { "name": "Paul Gortmaker", "email": "paul.gortmaker@windriver.com", "time": "Sun Jul 14 19:36:59 2013 -0400" }, "message": "kernel: delete __cpuinit usage from all core kernel files\n\nThe __cpuinit type of throwaway sections might have made sense\nsome time ago when RAM was more constrained, but now the savings\ndo not offset the cost and complications. For example, the fix in\ncommit 5e427ec2d0 (\"x86: Fix bit corruption at CPU resume time\")\nis a good example of the nasty type of bugs that can be created\nwith improper use of the various __init prefixes.\n\nAfter a discussion on LKML[1] it was decided that cpuinit should go\nthe way of devinit and be phased out. Once all the users are gone,\nwe can then finally remove the macros themselves from linux/init.h.\n\nThis removes all the uses of the __cpuinit macros from C files in\nthe core kernel directories (kernel, init, lib, mm, and include)\nthat don\u0027t really have a specific maintainer.\n\n[1] https://lkml.org/lkml/2013/5/20/589\n\nSigned-off-by: Paul Gortmaker \u003cpaul.gortmaker@windriver.com\u003e\n" }, { "commit": "54be8200198ddfc6cb396720460c19881fac2d5a", "tree": "58ccab6e0cfb35b30e7e16804f15fe9c94628f12", "parents": [ "41d9884c44237cd66e2bdbc412028b29196b344c", "c25f195e828f847735c7626b5693ddc3b853d245" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Jul 14 15:14:29 2013 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Jul 14 15:14:29 2013 -0700" }, "message": "Merge branch \u0027slab/for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux\n\nPull slab update from Pekka Enberg:\n \"Highlights:\n\n - Fix for boot-time problems on some architectures due to\n init_lock_keys() not respecting kmalloc_caches boundaries\n (Christoph Lameter)\n\n - CONFIG_SLUB_CPU_PARTIAL requested by RT folks (Joonsoo Kim)\n\n - Fix for excessive slab freelist draining (Wanpeng Li)\n\n - SLUB and SLOB cleanups and fixes (various people)\"\n\nI ended up editing the branch, and this avoids two commits at the end\nthat were immediately reverted, and I instead just applied the oneliner\nfix in between myself.\n\n* \u0027slab/for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux\n slub: Check for page NULL before doing the node_match check\n mm/slab: Give s_next and s_stop slab-specific names\n slob: Check for NULL pointer before calling ctor()\n slub: Make cpu partial slab support configurable\n slab: add kmalloc() to kernel API documentation\n slab: fix init_lock_keys\n slob: use DIV_ROUND_UP where possible\n slub: do not put a slab to cpu partial list when cpu_partial is 0\n mm/slub: Use node_nr_slabs and node_nr_objs in get_slabinfo\n mm/slub: Drop unnecessary nr_partials\n mm/slab: Fix /proc/slabinfo unwriteable for slab\n mm/slab: Sharing s_next and s_stop between slab and slub\n mm/slab: Fix drain freelist excessively\n slob: Rework #ifdeffery in slab.h\n mm, slab: moved kmem_cache_alloc_node comment to correct place\n" }, { "commit": "e76e1fdfa8f8dc1ea6699923cf5d92b5bee9c936", "tree": "d216233bcf256a8a3d8912cebbbf82032bb7b715", "parents": [ "cffb78b0e0b3a30b059b27a1d97500cf6464efa9" ], "author": { "name": "Kyungsik Lee", "email": "kyungsik.lee@lge.com", "time": "Mon Jul 08 16:01:46 2013 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Jul 09 10:33:30 2013 -0700" }, "message": "lib: add support for LZ4-compressed kernel\n\nAdd support for extracting LZ4-compressed kernel images, as well as\nLZ4-compressed ramdisk images in the kernel boot process.\n\nSigned-off-by: Kyungsik Lee \u003ckyungsik.lee@lge.com\u003e\nCc: \"H. Peter Anvin\" \u003chpa@zytor.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Russell King \u003crmk@arm.linux.org.uk\u003e\nCc: Borislav Petkov \u003cbp@alien8.de\u003e\nCc: Florian Fainelli \u003cflorian@openwrt.org\u003e\nCc: Yann Collet \u003cyann.collet.73@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "345c905d13a4ec9f774b6b4bc038fe4aef26cced", "tree": "9b6177f5b4712ff78c3808b240e66079e8c8338f", "parents": [ "e7efa615ccf78394338144ff0187be331240748a" ], "author": { "name": "Joonsoo Kim", "email": "iamjoonsoo.kim@lge.com", "time": "Wed Jun 19 14:05:52 2013 +0900" }, "committer": { "name": "Pekka Enberg", "email": "penberg@kernel.org", "time": "Sun Jul 07 19:09:56 2013 +0300" }, "message": "slub: Make cpu partial slab support configurable\n\nCPU partial support can introduce level of indeterminism that is not\nwanted in certain context (like a realtime kernel). Make it\nconfigurable.\n\nThis patch is based on Christoph Lameter\u0027s \"slub: Make cpu partial slab\nsupport configurable V2\".\n\nAcked-by: Christoph Lameter \u003ccl@linux.com\u003e\nSigned-off-by: Joonsoo Kim \u003ciamjoonsoo.kim@lge.com\u003e\nSigned-off-by: Pekka Enberg \u003cpenberg@kernel.org\u003e\n" }, { "commit": "21884a83b2192a00885d7244a1dda32debd2fbc7", "tree": "e00267bbcac32f0114b3d21a20c61107d2314c40", "parents": [ "8b70a90cabafb6a6e1a0d3f838b38355fe48337e", "73b0cd674ccc64c921e25bd7154f26d342116539" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 06 14:09:38 2013 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 06 14:09:38 2013 -0700" }, "message": "Merge branch \u0027timers-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull timer core updates from Thomas Gleixner:\n \"The timer changes contain:\n\n - posix timer code consolidation and fixes for odd corner cases\n\n - sched_clock implementation moved from ARM to core code to avoid\n duplication by other architectures\n\n - alarm timer updates\n\n - clocksource and clockevents unregistration facilities\n\n - clocksource/events support for new hardware\n\n - precise nanoseconds RTC readout (Xen feature)\n\n - generic support for Xen suspend/resume oddities\n\n - the usual lot of fixes and cleanups all over the place\n\n The parts which touch other areas (ARM/XEN) have been coordinated with\n the relevant maintainers. Though this results in an handful of\n trivial to solve merge conflicts, which we preferred over nasty cross\n tree merge dependencies.\n\n The patches which have been committed in the last few days are bug\n fixes plus the posix timer lot. The latter was in akpms queue and\n next for quite some time; they just got forgotten and Frederic\n collected them last minute.\"\n\n* \u0027timers-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (59 commits)\n hrtimer: Remove unused variable\n hrtimers: Move SMP function call to thread context\n clocksource: Reselect clocksource when watchdog validated high-res capability\n posix-cpu-timers: don\u0027t account cpu timer after stopped thread runtime accounting\n posix_timers: fix racy timer delta caching on task exit\n posix-timers: correctly get dying task time sample in posix_cpu_timer_schedule()\n selftests: add basic posix timers selftests\n posix_cpu_timers: consolidate expired timers check\n posix_cpu_timers: consolidate timer list cleanups\n posix_cpu_timer: consolidate expiry time type\n tick: Sanitize broadcast control logic\n tick: Prevent uncontrolled switch to oneshot mode\n tick: Make oneshot broadcast robust vs. CPU offlining\n x86: xen: Sync the CMOS RTC as well as the Xen wallclock\n x86: xen: Sync the wallclock when the system time is set\n timekeeping: Indicate that clock was set in the pvclock gtod notifier\n timekeeping: Pass flags instead of multiple bools to timekeeping_update()\n xen: Remove clock_was_set() call in the resume path\n hrtimers: Support resuming with two or more CPUs online (but stopped)\n timer: Fix jiffies wrap behavior of round_jiffies_common()\n ...\n" }, { "commit": "2b0f89317e99735bbf32eaede81f707f98ab1b5e", "tree": "16daa236e21876b11f1c0b9256cd4046aadba020", "parents": [ "07bd1172902e782f288e4d44b1fde7dec0f08b6f", "fa18f7bde3ad4568d1d343b60d963bfbd8dc3991" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Thu Jul 04 23:11:22 2013 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Thu Jul 04 23:11:22 2013 +0200" }, "message": "Merge branch \u0027timers/posix-cpu-timers-for-tglx\u0027 of\ngit://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks into timers/core\n\nFrederic sayed: \"Most of these patches have been hanging around for\nseveral month now, in -mmotm for a significant chunk. They already\nmissed a few releases.\"\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "ca75b4d8799d46842350596fdc5fce7711610326", "tree": "b76561805594fd99bf70085a0dfbd8259cd95575", "parents": [ "ff1c8fac88ab8e7dac65236b277908c7c5c7ab09" ], "author": { "name": "Toralf Förster", "email": "toralf.foerster@gmx.de", "time": "Wed Jul 03 15:05:38 2013 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jul 03 16:07:45 2013 -0700" }, "message": "insert missing space in printk line of root_delay\n\nTrivial, but it really looks better.\n\nSigned-off-by: Toralf Förster \u003ctoralf.foerster@gmx.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "ff1c8fac88ab8e7dac65236b277908c7c5c7ab09", "tree": "83d3dc572683e7151e4f2ec9ecea5ff8ad5e007f", "parents": [ "351b2a1fe2d06f44b4c06d377744b2ac408b7407" ], "author": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Jul 03 15:05:37 2013 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jul 03 16:07:45 2013 -0700" }, "message": "init: remove permanent string buffer from do_one_initcall()\n\ndo_one_initcall() uses a 64 byte string buffer to save a message. This\nbuffer is declared static and is only used at boot up and when a module\nis loaded. As 64 bytes is very small, and this function has very limited\nscope, there\u0027s no reason to waste permanent memory with this string and\nnot just simply put it on the stack.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Geert Uytterhoeven \u003cgeert@linux-m68k.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "f60e2a968e2bebe34986f49251017f72b725d8c0", "tree": "86f41f640c23f02c6c0448007876e4710ab0106d", "parents": [ "cdd91a77043ba81585236ef61f65c18222b212e6" ], "author": { "name": "Sergey Dyasly", "email": "dserrg@gmail.com", "time": "Wed Jul 03 15:03:30 2013 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jul 03 16:07:34 2013 -0700" }, "message": "memcg: Kconfig info update\n\nNow there are only 2 members in struct page_cgroup. Update config MEMCG\ndescription accordingly.\n\nSigned-off-by: Sergey Dyasly \u003cdserrg@gmail.com\u003e\nAcked-by: Michal Hocko \u003cmhocko@suse.cz\u003e\nAcked-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nAcked-by: Johannes Weiner \u003channes@cmpxchg.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "f0bb4c0ab064a8aeeffbda1cee380151a594eaab", "tree": "14d55a89c5db455aa10ff9a96ca14c474a9c4d55", "parents": [ "a4883ef6af5e513a1e8c2ab9aab721604aa3a4f5", "983433b5812c5cf33a9008fa38c6f9b407fedb76" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Jul 02 16:15:23 2013 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Jul 02 16:15:23 2013 -0700" }, "message": "Merge branch \u0027perf-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull perf updates from Ingo Molnar:\n \"Kernel improvements:\n\n - watchdog driver improvements by Li Zefan\n - Power7 CPI stack events related improvements by Sukadev Bhattiprolu\n - event multiplexing via hrtimers and other improvements by Stephane\n Eranian\n - kernel stack use optimization by Andrew Hunter\n - AMD IOMMU uncore PMU support by Suravee Suthikulpanit\n - NMI handling rate-limits by Dave Hansen\n - various hw_breakpoint fixes by Oleg Nesterov\n - hw_breakpoint overflow period sampling and related signal handling\n fixes by Jiri Olsa\n - Intel Haswell PMU support by Andi Kleen\n\n Tooling improvements:\n\n - Reset SIGTERM handler in workload child process, fix from David\n Ahern.\n - Makefile reorganization, prep work for Kconfig patches, from Jiri\n Olsa.\n - Add automated make test suite, from Jiri Olsa.\n - Add --percent-limit option to \u0027top\u0027 and \u0027report\u0027, from Namhyung\n Kim.\n - Sorting improvements, from Namhyung Kim.\n - Expand definition of sysfs format attribute, from Michael Ellerman.\n\n Tooling fixes:\n\n - \u0027perf tests\u0027 fixes from Jiri Olsa.\n - Make Power7 CPI stack events available in sysfs, from Sukadev\n Bhattiprolu.\n - Handle death by SIGTERM in \u0027perf record\u0027, fix from David Ahern.\n - Fix printing of perf_event_paranoid message, from David Ahern.\n - Handle realloc failures in \u0027perf kvm\u0027, from David Ahern.\n - Fix divide by 0 in variance, from David Ahern.\n - Save parent pid in thread struct, from David Ahern.\n - Handle JITed code in shared memory, from Andi Kleen.\n - Fixes for \u0027perf diff\u0027, from Jiri Olsa.\n - Remove some unused struct members, from Jiri Olsa.\n - Add missing liblk.a dependency for python/perf.so, fix from Jiri\n Olsa.\n - Respect CROSS_COMPILE in liblk.a, from Rabin Vincent.\n - No need to do locking when adding hists in perf report, only \u0027top\u0027\n needs that, from Namhyung Kim.\n - Fix alignment of symbol column in in the hists browser (top,\n report) when -v is given, from NAmhyung Kim.\n - Fix \u0027perf top\u0027 -E option behavior, from Namhyung Kim.\n - Fix bug in isupper() and islower(), from Sukadev Bhattiprolu.\n - Fix compile errors in bp_signal \u0027perf test\u0027, from Sukadev\n Bhattiprolu.\n\n ... and more things\"\n\n* \u0027perf-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (102 commits)\n perf/x86: Disable PEBS-LL in intel_pmu_pebs_disable()\n perf/x86: Fix shared register mutual exclusion enforcement\n perf/x86/intel: Support full width counting\n x86: Add NMI duration tracepoints\n perf: Drop sample rate when sampling is too slow\n x86: Warn when NMI handlers take large amounts of time\n hw_breakpoint: Introduce \"struct bp_cpuinfo\"\n hw_breakpoint: Simplify *register_wide_hw_breakpoint()\n hw_breakpoint: Introduce cpumask_of_bp()\n hw_breakpoint: Simplify the \"weight\" usage in toggle_bp_slot() paths\n hw_breakpoint: Simplify list/idx mess in toggle_bp_slot() paths\n perf/x86/intel: Add mem-loads/stores support for Haswell\n perf/x86/intel: Support Haswell/v4 LBR format\n perf/x86/intel: Move NMI clearing to end of PMI handler\n perf/x86/intel: Add Haswell PEBS support\n perf/x86/intel: Add simple Haswell PMU support\n perf/x86/intel: Add Haswell PEBS record support\n perf/x86/intel: Fix sparse warning\n perf/x86/amd: AMD IOMMU Performance Counter PERF uncore PMU implementation\n perf/x86/amd: Add IOMMU Performance Counter resource management\n ...\n" }, { "commit": "ab3d681e9d41816f90836ea8fe235168d973207f", "tree": "c5210911fcb6023f4956a302ee1d4ce3a405aa0f", "parents": [ "0c46d68d1930c8a58d0f291328b9759da754e599", "b1fe9987b78755719e8627d58409174ba00c24de" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Jul 02 16:13:29 2013 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Jul 02 16:13:29 2013 -0700" }, "message": "Merge branch \u0027core-rcu-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull RCU updates from Ingo Molnar:\n \"The major changes:\n\n - Simplify RCU\u0027s grace-period and callback processing based on the new\n numbering for callbacks.\n\n - Removal of TINY_PREEMPT_RCU in favor of TREE_PREEMPT_RCU for\n single-CPU low-latency systems.\n\n - SRCU-related changes and fixes.\n\n - Miscellaneous fixes, including converting a few remaining printk()\n calls to pr_*().\n\n - Documentation updates\"\n\n* \u0027core-rcu-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (32 commits)\n rcu: Shrink TINY_RCU by reworking CPU-stall ifdefs\n rcu: Shrink TINY_RCU by moving exit_rcu()\n rcu: Remove TINY_PREEMPT_RCU tracing documentation\n rcu: Consolidate rcutiny_plugin.h ifdefs\n rcu: Remove rcu_preempt_note_context_switch()\n rcu: Remove the CONFIG_TINY_RCU ifdefs in rcutiny.h\n rcu: Remove check_cpu_stall_preempt()\n rcu: Simplify RCU_TINY RCU callback invocation\n rcu: Remove rcu_preempt_process_callbacks()\n rcu: Remove rcu_preempt_remove_callbacks()\n rcu: Remove rcu_preempt_check_callbacks()\n rcu: Remove show_tiny_preempt_stats()\n rcu: Remove TINY_PREEMPT_RCU\n powerpc,kvm: fix imbalance srcu_read_[un]lock()\n rcu: Remove srcu_read_lock_raw() and srcu_read_unlock_raw().\n rcu: Apply Dave Jones\u0027s NOCB Kconfig help feedback\n rcu: Merge adjacent identical ifdefs\n rcu: Drive quiescent-state-forcing delay from HZ\n rcu: Remove \"Experimental\" flags\n kthread: Add kworker kthreads to OS-jitter documentation\n ...\n" }, { "commit": "4bb1667255a86360721291fe59991d033bbc2f2a", "tree": "cc6e697ab35538995625e6ba9a5b809c5dd35719", "parents": [ "b5aef682e00c424bb2f55639168083b61803a012" ], "author": { "name": "Jiri Slaby", "email": "jslaby@suse.cz", "time": "Wed May 22 10:56:24 2013 +0200" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@linuxfoundation.org", "time": "Mon Jun 24 16:41:32 2013 -0700" }, "message": "build some drivers only when compile-testing\n\nSome drivers can be built on more platforms than they run on. This is\na burden for users and distributors who package a kernel. They have to\nmanually deselect some (for them useless) drivers when updating their\nconfigs via oldconfig. And yet, sometimes it is even impossible to\ndisable the drivers without patching the kernel.\n\nIntroduce a new config option COMPILE_TEST and make all those drivers\nto depend on the platform they run on, or on the COMPILE_TEST option.\nNow, when users/distributors choose COMPILE_TEST\u003dn they will not have\nthe drivers in their allmodconfig setups, but developers still can\ncompile-test them with COMPILE_TEST\u003dy.\n\nNow the drivers where we use this new option:\n* PTP_1588_CLOCK_PCH: The PCH EG20T is only compatible with Intel Atom\n processors so it should depend on x86.\n* FB_GEODE: Geode is 32-bit only so only enable it for X86_32.\n* USB_CHIPIDEA_IMX: The OF_DEVICE dependency will be met on powerpc\n systems -- which do not actually support the hardware via that\n method.\n* INTEL_MID_PTI: It is specific to the Penwell type of Intel Atom\n device.\n\n[v2]\n* remove EXPERT dependency\n\n[gregkh - remove chipidea portion, as it\u0027s incorrect, and also doesn\u0027t\n apply to my driver-core tree]\n\nSigned-off-by: Jiri Slaby \u003cjslaby@suse.cz\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nCc: Jeff Mahoney \u003cjeffm@suse.com\u003e\nCc: Alexander Shishkin \u003calexander.shishkin@linux.intel.com\u003e\nCc: linux-usb@vger.kernel.org\nCc: Florian Tobias Schandinat \u003cFlorianSchandinat@gmx.de\u003e\nCc: linux-geode@lists.infradead.org\nCc: linux-fbdev@vger.kernel.org\nCc: Richard Cochran \u003crichardcochran@gmail.com\u003e\nCc: netdev@vger.kernel.org\nCc: Ben Hutchings \u003cben@decadent.org.uk\u003e\nCc: \"Keller, Jacob E\" \u003cjacob.e.keller@intel.com\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@linuxfoundation.org\u003e\n" }, { "commit": "bb07b00be77fb33274cb44a03bdbf2471e556189", "tree": "620390077de843dd7626998f0d8441d14a6c66d9", "parents": [ "b7165ebbf0898bad9aaeddfa22b918e94ed90e07", "7d132055814ef17a6c7b69f342244c410a5e000f" ], "author": { "name": "Greg Kroah-Hartman", "email": "gregkh@linuxfoundation.org", "time": "Mon Jun 17 16:57:20 2013 -0700" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@linuxfoundation.org", "time": "Mon Jun 17 16:57:20 2013 -0700" }, "message": "Merge 3.10-rc6 into driver-core-next\n\nWe want these fixes here too.\n\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@linuxfoundation.org\u003e\n" }, { "commit": "38ff87f77af0b5a93fc8581cff1d6e5692ab8970", "tree": "7a157528657400d0486cd4e74da98bad40992c3c", "parents": [ "ffbfb5e316f0db486798ccf1db36a577ffe79637" ], "author": { "name": "Stephen Boyd", "email": "sboyd@codeaurora.org", "time": "Sat Jun 01 23:39:40 2013 -0700" }, "committer": { "name": "John Stultz", "email": "john.stultz@linaro.org", "time": "Wed Jun 12 14:02:13 2013 -0700" }, "message": "sched_clock: Make ARM\u0027s sched_clock generic for all architectures\n\nNothing about the sched_clock implementation in the ARM port is\nspecific to the architecture. Generalize the code so that other\narchitectures can use it by selecting GENERIC_SCHED_CLOCK.\n\nSigned-off-by: Stephen Boyd \u003csboyd@codeaurora.org\u003e\n[jstultz: Merge minor collisions with other patches in my tree]\nSigned-off-by: John Stultz \u003cjohn.stultz@linaro.org\u003e\n" }, { "commit": "be77f87c001b770f13fe742becb08b847d9542f1", "tree": "0dc068c57aee1f87a70eae31f3ad8ecc7e4eb702", "parents": [ "05eb552bf5ed9e7277bdc9c273ed2f4e9b7dc3e5", "f7bac9b85a333ebdfa5f500cf6acf753edffc05f", "676c3dc2033aa43f2e605611dec9be55a921dafd", "505d6421bd520c42dd6141aaeff91605e148583f", "14961444696effb2e660fe876e5c1880f8bc3932" ], "author": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Mon Jun 10 13:46:44 2013 -0700" }, "committer": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Mon Jun 10 13:46:44 2013 -0700" }, "message": "Merge branches \u0027cbnum.2013.06.10a\u0027, \u0027doc.2013.06.10a\u0027, \u0027fixes.2013.06.10a\u0027, \u0027srcu.2013.06.10a\u0027 and \u0027tiny.2013.06.10a\u0027 into HEAD\n\ncbnum.2013.06.10a: Apply simplifications stemming from the new callback\n\tnumbering.\n\ndoc.2013.06.10a: Documentation updates.\n\nfixes.2013.06.10a: Miscellaneous fixes.\n\nsrcu.2013.06.10a: Updates to SRCU.\n\ntiny.2013.06.10a: Eliminate TINY_PREEMPT_RCU.\n" }, { "commit": "127781d1ba1ee5bbe1780afa35dd0e71583b143d", "tree": "3c9b5961bc02e7f380a7bd7932181329ecbec397", "parents": [ "efc151c33b971148894789dc7c5589dec46d4348" ], "author": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Wed Mar 27 08:44:00 2013 -0700" }, "committer": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Mon Jun 10 13:45:49 2013 -0700" }, "message": "rcu: Remove TINY_PREEMPT_RCU\n\nTINY_PREEMPT_RCU adds significant code and complexity, but does not\noffer commensurate benefits. People currently using TINY_PREEMPT_RCU\ncan get much better memory footprint with TINY_RCU, or, if they really\nneed preemptible RCU, they can use TREE_PREEMPT_RCU with a relatively\nminor degradation in memory footprint. Please note that this move\nhas been widely publicized on LKML (https://lkml.org/lkml/2012/11/12/545)\nand on LWN (http://lwn.net/Articles/541037/).\n\nThis commit therefore removes TINY_PREEMPT_RCU.\n\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\n[ paulmck: Updated to eliminate #else in rcutiny.h as suggested by Josh ]\nReviewed-by: Josh Triplett \u003cjosh@joshtriplett.org\u003e\n" }, { "commit": "676c3dc2033aa43f2e605611dec9be55a921dafd", "tree": "2021f6c6d9b79d8af4b0c9e85d4d6726af01fb49", "parents": [ "4982969d965ec87b1887c86d2e0b3d81065e1d38" ], "author": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Tue Apr 30 14:49:42 2013 -0700" }, "committer": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Mon Jun 10 13:44:57 2013 -0700" }, "message": "rcu: Apply Dave Jones\u0027s NOCB Kconfig help feedback\n\nThe Kconfig help text for the RCU_NOCB_CPU_NONE, RCU_NOCB_CPU_ZERO,\nand RCU_NOCB_CPU_ALL Kconfig options was unclear, so this commit\nadds a bit more detail.\n\nReported-by: Dave Jones \u003cdavej@redhat.com\u003e\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\n" }, { "commit": "9a5739d73f9369ba1cdba3889ee4e2f87be25a46", "tree": "c1b03bf542ee77e4cff0b0d422a14e7772ba8baf", "parents": [ "efc151c33b971148894789dc7c5589dec46d4348" ], "author": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Thu Mar 28 20:48:36 2013 -0700" }, "committer": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Mon Jun 10 13:44:56 2013 -0700" }, "message": "rcu: Remove \"Experimental\" flags\n\nAfter a release or two, features are no longer experimental. Therefore,\nthis commit removes the \"Experimental\" tag from them.\n\nReported-by: Paul Gortmaker \u003cpaul.gortmaker@windriver.com\u003e\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nReviewed-by: Josh Triplett \u003cjosh@joshtriplett.org\u003e\n" }, { "commit": "016a8d5be6ddcc72ef0432d82d9f6fa34f61b907", "tree": "3f89d85633928acfde3a6a390ef62dcda0d3a3f4", "parents": [ "d62840995a99c9766803d54e9d7923f247a1c1db" ], "author": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Tue May 28 17:32:53 2013 -0400" }, "committer": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Mon Jun 10 13:37:11 2013 -0700" }, "message": "rcu: Don\u0027t call wakeup() with rcu_node structure -\u003elock held\n\nThis commit fixes a lockdep-detected deadlock by moving a wake_up()\ncall out from a rnp-\u003elock critical section. Please see below for\nthe long version of this story.\n\nOn Tue, 2013-05-28 at 16:13 -0400, Dave Jones wrote:\n\n\u003e [12572.705832] \u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\n\u003e [12572.750317] [ INFO: possible circular locking dependency detected ]\n\u003e [12572.796978] 3.10.0-rc3+ #39 Not tainted\n\u003e [12572.833381] -------------------------------------------------------\n\u003e [12572.862233] trinity-child17/31341 is trying to acquire lock:\n\u003e [12572.870390] (rcu_node_0){..-.-.}, at: [\u003cffffffff811054ff\u003e] rcu_read_unlock_special+0x9f/0x4c0\n\u003e [12572.878859]\n\u003e but task is already holding lock:\n\u003e [12572.894894] (\u0026ctx-\u003elock){-.-...}, at: [\u003cffffffff811390ed\u003e] perf_lock_task_context+0x7d/0x2d0\n\u003e [12572.903381]\n\u003e which lock already depends on the new lock.\n\u003e\n\u003e [12572.927541]\n\u003e the existing dependency chain (in reverse order) is:\n\u003e [12572.943736]\n\u003e -\u003e #4 (\u0026ctx-\u003elock){-.-...}:\n\u003e [12572.960032] [\u003cffffffff810b9851\u003e] lock_acquire+0x91/0x1f0\n\u003e [12572.968337] [\u003cffffffff816ebc90\u003e] _raw_spin_lock+0x40/0x80\n\u003e [12572.976633] [\u003cffffffff8113c987\u003e] __perf_event_task_sched_out+0x2e7/0x5e0\n\u003e [12572.984969] [\u003cffffffff81088953\u003e] perf_event_task_sched_out+0x93/0xa0\n\u003e [12572.993326] [\u003cffffffff816ea0bf\u003e] __schedule+0x2cf/0x9c0\n\u003e [12573.001652] [\u003cffffffff816eacfe\u003e] schedule_user+0x2e/0x70\n\u003e [12573.009998] [\u003cffffffff816ecd64\u003e] retint_careful+0x12/0x2e\n\u003e [12573.018321]\n\u003e -\u003e #3 (\u0026rq-\u003elock){-.-.-.}:\n\u003e [12573.034628] [\u003cffffffff810b9851\u003e] lock_acquire+0x91/0x1f0\n\u003e [12573.042930] [\u003cffffffff816ebc90\u003e] _raw_spin_lock+0x40/0x80\n\u003e [12573.051248] [\u003cffffffff8108e6a7\u003e] wake_up_new_task+0xb7/0x260\n\u003e [12573.059579] [\u003cffffffff810492f5\u003e] do_fork+0x105/0x470\n\u003e [12573.067880] [\u003cffffffff81049686\u003e] kernel_thread+0x26/0x30\n\u003e [12573.076202] [\u003cffffffff816cee63\u003e] rest_init+0x23/0x140\n\u003e [12573.084508] [\u003cffffffff81ed8e1f\u003e] start_kernel+0x3f1/0x3fe\n\u003e [12573.092852] [\u003cffffffff81ed856f\u003e] x86_64_start_reservations+0x2a/0x2c\n\u003e [12573.101233] [\u003cffffffff81ed863d\u003e] x86_64_start_kernel+0xcc/0xcf\n\u003e [12573.109528]\n\u003e -\u003e #2 (\u0026p-\u003epi_lock){-.-.-.}:\n\u003e [12573.125675] [\u003cffffffff810b9851\u003e] lock_acquire+0x91/0x1f0\n\u003e [12573.133829] [\u003cffffffff816ebe9b\u003e] _raw_spin_lock_irqsave+0x4b/0x90\n\u003e [12573.141964] [\u003cffffffff8108e881\u003e] try_to_wake_up+0x31/0x320\n\u003e [12573.150065] [\u003cffffffff8108ebe2\u003e] default_wake_function+0x12/0x20\n\u003e [12573.158151] [\u003cffffffff8107bbf8\u003e] autoremove_wake_function+0x18/0x40\n\u003e [12573.166195] [\u003cffffffff81085398\u003e] __wake_up_common+0x58/0x90\n\u003e [12573.174215] [\u003cffffffff81086909\u003e] __wake_up+0x39/0x50\n\u003e [12573.182146] [\u003cffffffff810fc3da\u003e] rcu_start_gp_advanced.isra.11+0x4a/0x50\n\u003e [12573.190119] [\u003cffffffff810fdb09\u003e] rcu_start_future_gp+0x1c9/0x1f0\n\u003e [12573.198023] [\u003cffffffff810fe2c4\u003e] rcu_nocb_kthread+0x114/0x930\n\u003e [12573.205860] [\u003cffffffff8107a91d\u003e] kthread+0xed/0x100\n\u003e [12573.213656] [\u003cffffffff816f4b1c\u003e] ret_from_fork+0x7c/0xb0\n\u003e [12573.221379]\n\u003e -\u003e #1 (\u0026rsp-\u003egp_wq){..-.-.}:\n\u003e [12573.236329] [\u003cffffffff810b9851\u003e] lock_acquire+0x91/0x1f0\n\u003e [12573.243783] [\u003cffffffff816ebe9b\u003e] _raw_spin_lock_irqsave+0x4b/0x90\n\u003e [12573.251178] [\u003cffffffff810868f3\u003e] __wake_up+0x23/0x50\n\u003e [12573.258505] [\u003cffffffff810fc3da\u003e] rcu_start_gp_advanced.isra.11+0x4a/0x50\n\u003e [12573.265891] [\u003cffffffff810fdb09\u003e] rcu_start_future_gp+0x1c9/0x1f0\n\u003e [12573.273248] [\u003cffffffff810fe2c4\u003e] rcu_nocb_kthread+0x114/0x930\n\u003e [12573.280564] [\u003cffffffff8107a91d\u003e] kthread+0xed/0x100\n\u003e [12573.287807] [\u003cffffffff816f4b1c\u003e] ret_from_fork+0x7c/0xb0\n\nNotice the above call chain.\n\nrcu_start_future_gp() is called with the rnp-\u003elock held. Then it calls\nrcu_start_gp_advance, which does a wakeup.\n\nYou can\u0027t do wakeups while holding the rnp-\u003elock, as that would mean\nthat you could not do a rcu_read_unlock() while holding the rq lock, or\nany lock that was taken while holding the rq lock. This is because...\n(See below).\n\n\u003e [12573.295067]\n\u003e -\u003e #0 (rcu_node_0){..-.-.}:\n\u003e [12573.309293] [\u003cffffffff810b8d36\u003e] __lock_acquire+0x1786/0x1af0\n\u003e [12573.316568] [\u003cffffffff810b9851\u003e] lock_acquire+0x91/0x1f0\n\u003e [12573.323825] [\u003cffffffff816ebc90\u003e] _raw_spin_lock+0x40/0x80\n\u003e [12573.331081] [\u003cffffffff811054ff\u003e] rcu_read_unlock_special+0x9f/0x4c0\n\u003e [12573.338377] [\u003cffffffff810760a6\u003e] __rcu_read_unlock+0x96/0xa0\n\u003e [12573.345648] [\u003cffffffff811391b3\u003e] perf_lock_task_context+0x143/0x2d0\n\u003e [12573.352942] [\u003cffffffff8113938e\u003e] find_get_context+0x4e/0x1f0\n\u003e [12573.360211] [\u003cffffffff811403f4\u003e] SYSC_perf_event_open+0x514/0xbd0\n\u003e [12573.367514] [\u003cffffffff81140e49\u003e] SyS_perf_event_open+0x9/0x10\n\u003e [12573.374816] [\u003cffffffff816f4dd4\u003e] tracesys+0xdd/0xe2\n\nNotice the above trace.\n\nperf took its own ctx-\u003elock, which can be taken while holding the rq\nlock. While holding this lock, it did a rcu_read_unlock(). The\nperf_lock_task_context() basically looks like:\n\nrcu_read_lock();\nraw_spin_lock(ctx-\u003elock);\nrcu_read_unlock();\n\nNow, what looks to have happened, is that we scheduled after taking that\nfirst rcu_read_lock() but before taking the spin lock. When we scheduled\nback in and took the ctx-\u003elock, the following rcu_read_unlock()\ntriggered the \"special\" code.\n\nThe rcu_read_unlock_special() takes the rnp-\u003elock, which gives us a\npossible deadlock scenario.\n\n\tCPU0\t\tCPU1\t\tCPU2\n\t----\t\t----\t\t----\n\n\t\t\t\t rcu_nocb_kthread()\n lock(rq-\u003elock);\n\t\t lock(ctx-\u003elock);\n\t\t\t\t lock(rnp-\u003elock);\n\n\t\t\t\t wake_up();\n\n\t\t\t\t lock(rq-\u003elock);\n\n\t\t rcu_read_unlock();\n\n\t\t rcu_read_unlock_special();\n\n\t\t lock(rnp-\u003elock);\n lock(ctx-\u003elock);\n\n**** DEADLOCK ****\n\n\u003e [12573.382068]\n\u003e other info that might help us debug this:\n\u003e\n\u003e [12573.403229] Chain exists of:\n\u003e rcu_node_0 --\u003e \u0026rq-\u003elock --\u003e \u0026ctx-\u003elock\n\u003e\n\u003e [12573.424471] Possible unsafe locking scenario:\n\u003e\n\u003e [12573.438499] CPU0 CPU1\n\u003e [12573.445599] ---- ----\n\u003e [12573.452691] lock(\u0026ctx-\u003elock);\n\u003e [12573.459799] lock(\u0026rq-\u003elock);\n\u003e [12573.467010] lock(\u0026ctx-\u003elock);\n\u003e [12573.474192] lock(rcu_node_0);\n\u003e [12573.481262]\n\u003e *** DEADLOCK ***\n\u003e\n\u003e [12573.501931] 1 lock held by trinity-child17/31341:\n\u003e [12573.508990] #0: (\u0026ctx-\u003elock){-.-...}, at: [\u003cffffffff811390ed\u003e] perf_lock_task_context+0x7d/0x2d0\n\u003e [12573.516475]\n\u003e stack backtrace:\n\u003e [12573.530395] CPU: 1 PID: 31341 Comm: trinity-child17 Not tainted 3.10.0-rc3+ #39\n\u003e [12573.545357] ffffffff825b4f90 ffff880219f1dbc0 ffffffff816e375b ffff880219f1dc00\n\u003e [12573.552868] ffffffff816dfa5d ffff880219f1dc50 ffff88023ce4d1f8 ffff88023ce4ca40\n\u003e [12573.560353] 0000000000000001 0000000000000001 ffff88023ce4d1f8 ffff880219f1dcc0\n\u003e [12573.567856] Call Trace:\n\u003e [12573.575011] [\u003cffffffff816e375b\u003e] dump_stack+0x19/0x1b\n\u003e [12573.582284] [\u003cffffffff816dfa5d\u003e] print_circular_bug+0x200/0x20f\n\u003e [12573.589637] [\u003cffffffff810b8d36\u003e] __lock_acquire+0x1786/0x1af0\n\u003e [12573.596982] [\u003cffffffff810918f5\u003e] ? sched_clock_cpu+0xb5/0x100\n\u003e [12573.604344] [\u003cffffffff810b9851\u003e] lock_acquire+0x91/0x1f0\n\u003e [12573.611652] [\u003cffffffff811054ff\u003e] ? rcu_read_unlock_special+0x9f/0x4c0\n\u003e [12573.619030] [\u003cffffffff816ebc90\u003e] _raw_spin_lock+0x40/0x80\n\u003e [12573.626331] [\u003cffffffff811054ff\u003e] ? rcu_read_unlock_special+0x9f/0x4c0\n\u003e [12573.633671] [\u003cffffffff811054ff\u003e] rcu_read_unlock_special+0x9f/0x4c0\n\u003e [12573.640992] [\u003cffffffff811390ed\u003e] ? perf_lock_task_context+0x7d/0x2d0\n\u003e [12573.648330] [\u003cffffffff810b429e\u003e] ? put_lock_stats.isra.29+0xe/0x40\n\u003e [12573.655662] [\u003cffffffff813095a0\u003e] ? delay_tsc+0x90/0xe0\n\u003e [12573.662964] [\u003cffffffff810760a6\u003e] __rcu_read_unlock+0x96/0xa0\n\u003e [12573.670276] [\u003cffffffff811391b3\u003e] perf_lock_task_context+0x143/0x2d0\n\u003e [12573.677622] [\u003cffffffff81139070\u003e] ? __perf_event_enable+0x370/0x370\n\u003e [12573.684981] [\u003cffffffff8113938e\u003e] find_get_context+0x4e/0x1f0\n\u003e [12573.692358] [\u003cffffffff811403f4\u003e] SYSC_perf_event_open+0x514/0xbd0\n\u003e [12573.699753] [\u003cffffffff8108cd9d\u003e] ? get_parent_ip+0xd/0x50\n\u003e [12573.707135] [\u003cffffffff810b71fd\u003e] ? trace_hardirqs_on_caller+0xfd/0x1c0\n\u003e [12573.714599] [\u003cffffffff81140e49\u003e] SyS_perf_event_open+0x9/0x10\n\u003e [12573.721996] [\u003cffffffff816f4dd4\u003e] tracesys+0xdd/0xe2\n\nThis commit delays the wakeup via irq_work(), which is what\nperf and ftrace use to perform wakeups in critical sections.\n\nReported-by: Dave Jones \u003cdavej@redhat.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\n" }, { "commit": "40b313608ad4ea655addd2ec6cdd106477ae8e15", "tree": "371f6ad524c7d85901bc9002ff2960ea10cb5154", "parents": [ "af5bc11e9aa19f72a2d5ccd44611cb6268a60a34" ], "author": { "name": "Stephen Rothwell", "email": "sfr@canb.auug.org.au", "time": "Tue May 21 13:49:35 2013 +1000" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@linuxfoundation.org", "time": "Mon Jun 03 14:20:18 2013 -0700" }, "message": "Finally eradicate CONFIG_HOTPLUG\n\nEver since commit 45f035ab9b8f (\"CONFIG_HOTPLUG should be always on\"),\nit has been basically impossible to build a kernel with CONFIG_HOTPLUG\nturned off. Remove all the remaining references to it.\n\nCc: Russell King \u003clinux@arm.linux.org.uk\u003e\nCc: Doug Thompson \u003cdougthompson@xmission.com\u003e\nCc: Bjorn Helgaas \u003cbhelgaas@google.com\u003e\nCc: Steven Whitehouse \u003cswhiteho@redhat.com\u003e\nCc: Arnd Bergmann \u003carnd@arndb.de\u003e\nCc: Pavel Machek \u003cpavel@ucw.cz\u003e\nCc: \"Rafael J. Wysocki\" \u003crjw@sisk.pl\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Stephen Rothwell \u003csfr@canb.auug.org.au\u003e\nAcked-by: Mauro Carvalho Chehab \u003cmchehab@redhat.com\u003e\nAcked-by: Hans Verkuil \u003chans.verkuil@cisco.com\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@linuxfoundation.org\u003e\n" }, { "commit": "9e6302056f8029f438e853432a856b9f13de26a6", "tree": "2c777b710fb4624fda55be17306d6f107b72428c", "parents": [ "ab573844e3058eef2788803d373019f8bebead57" ], "author": { "name": "Stephane Eranian", "email": "eranian@google.com", "time": "Wed Apr 03 14:21:33 2013 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Tue May 28 09:07:10 2013 +0200" }, "message": "perf: Use hrtimers for event multiplexing\n\nThe current scheme of using the timer tick was fine for per-thread\nevents. However, it was causing bias issues in system-wide mode\n(including for uncore PMUs). Event groups would not get their fair\nshare of runtime on the PMU. With tickless kernels, if a core is idle\nthere is no timer tick, and thus no event rotation (multiplexing).\nHowever, there are events (especially uncore events) which do count\neven though cores are asleep.\n\nThis patch changes the timer source for multiplexing. It introduces a\nper-PMU per-cpu hrtimer. The advantage is that even when a core goes\nidle, it will come back to service the hrtimer, thus multiplexing on\nsystem-wide events works much better.\n\nThe per-PMU implementation (suggested by PeterZ) enables adjusting the\nmultiplexing interval per PMU. The preferred interval is stashed into\nthe struct pmu. If not set, it will be forced to the default interval\nvalue.\n\nIn order to minimize the impact of the hrtimer, it is turned on and\noff on demand. When the PMU on a CPU is overcommited, the hrtimer is\nactivated. It is stopped when the PMU is not overcommitted.\n\nIn order for this to work properly, we had to change the order of\ninitialization in start_kernel() such that hrtimer_init() is run\nbefore perf_event_init().\n\nThe default interval in milliseconds is set to a timer tick just like\nwith the old code. We will provide a sysctl to tune this in another\npatch.\n\nSigned-off-by: Stephane Eranian \u003ceranian@google.com\u003e\nSigned-off-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nLink: http://lkml.kernel.org/r/1364991694-5876-2-git-send-email-eranian@google.com\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "534c97b0950b1967bca1c753aeaed32f5db40264", "tree": "9421d26e4f6d479d1bc32b036a731b065daab0fa", "parents": [ "64049d1973c1735f543eb7a55653e291e108b0cb", "265f22a975c1e4cc3a4d1f94a3ec53ffbb6f5b9f" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun May 05 13:23:27 2013 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun May 05 13:23:27 2013 -0700" }, "message": "Merge branch \u0027timers-nohz-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull \u0027full dynticks\u0027 support from Ingo Molnar:\n \"This tree from Frederic Weisbecker adds a new, (exciting! :-) core\n kernel feature to the timer and scheduler subsystems: \u0027full dynticks\u0027,\n or CONFIG_NO_HZ_FULL\u003dy.\n\n This feature extends the nohz variable-size timer tick feature from\n idle to busy CPUs (running at most one task) as well, potentially\n reducing the number of timer interrupts significantly.\n\n This feature got motivated by real-time folks and the -rt tree, but\n the general utility and motivation of full-dynticks runs wider than\n that:\n\n - HPC workloads get faster: CPUs running a single task should be able\n to utilize a maximum amount of CPU power. A periodic timer tick at\n HZ\u003d1000 can cause a constant overhead of up to 1.0%. This feature\n removes that overhead - and speeds up the system by 0.5%-1.0% on\n typical distro configs even on modern systems.\n\n - Real-time workload latency reduction: CPUs running critical tasks\n should experience as little jitter as possible. The last remaining\n source of kernel-related jitter was the periodic timer tick.\n\n - A single task executing on a CPU is a pretty common situation,\n especially with an increasing number of cores/CPUs, so this feature\n helps desktop and mobile workloads as well.\n\n The cost of the feature is mainly related to increased timer\n reprogramming overhead when a CPU switches its tick period, and thus\n slightly longer to-idle and from-idle latency.\n\n Configuration-wise a third mode of operation is added to the existing\n two NOHZ kconfig modes:\n\n - CONFIG_HZ_PERIODIC: [formerly !CONFIG_NO_HZ], now explicitly named\n as a config option. This is the traditional Linux periodic tick\n design: there\u0027s a HZ tick going on all the time, regardless of\n whether a CPU is idle or not.\n\n - CONFIG_NO_HZ_IDLE: [formerly CONFIG_NO_HZ\u003dy], this turns off the\n periodic tick when a CPU enters idle mode.\n\n - CONFIG_NO_HZ_FULL: this new mode, in addition to turning off the\n tick when a CPU is idle, also slows the tick down to 1 Hz (one\n timer interrupt per second) when only a single task is running on a\n CPU.\n\n The .config behavior is compatible: existing !CONFIG_NO_HZ and\n CONFIG_NO_HZ\u003dy settings get translated to the new values, without the\n user having to configure anything. CONFIG_NO_HZ_FULL is turned off by\n default.\n\n This feature is based on a lot of infrastructure work that has been\n steadily going upstream in the last 2-3 cycles: related RCU support\n and non-periodic cputime support in particular is upstream already.\n\n This tree adds the final pieces and activates the feature. The pull\n request is marked RFC because:\n\n - it\u0027s marked 64-bit only at the moment - the 32-bit support patch is\n small but did not get ready in time.\n\n - it has a number of fresh commits that came in after the merge\n window. The overwhelming majority of commits are from before the\n merge window, but still some aspects of the tree are fresh and so I\n marked it RFC.\n\n - it\u0027s a pretty wide-reaching feature with lots of effects - and\n while the components have been in testing for some time, the full\n combination is still not very widely used. That it\u0027s default-off\n should reduce its regression abilities and obviously there are no\n known regressions with CONFIG_NO_HZ_FULL\u003dy enabled either.\n\n - the feature is not completely idempotent: there is no 100%\n equivalent replacement for a periodic scheduler/timer tick. In\n particular there\u0027s ongoing work to map out and reduce its effects\n on scheduler load-balancing and statistics. This should not impact\n correctness though, there are no known regressions related to this\n feature at this point.\n\n - it\u0027s a pretty ambitious feature that with time will likely be\n enabled by most Linux distros, and we\u0027d like you to make input on\n its design/implementation, if you dislike some aspect we missed.\n Without flaming us to crisp! :-)\n\n Future plans:\n\n - there\u0027s ongoing work to reduce 1Hz to 0Hz, to essentially shut off\n the periodic tick altogether when there\u0027s a single busy task on a\n CPU. We\u0027d first like 1 Hz to be exposed more widely before we go\n for the 0 Hz target though.\n\n - once we reach 0 Hz we can remove the periodic tick assumption from\n nr_running\u003e\u003d2 as well, by essentially interrupting busy tasks only\n as frequently as the sched_latency constraints require us to do -\n once every 4-40 msecs, depending on nr_running.\n\n I am personally leaning towards biting the bullet and doing this in\n v3.10, like the -rt tree this effort has been going on for too long -\n but the final word is up to you as usual.\n\n More technical details can be found in Documentation/timers/NO_HZ.txt\"\n\n* \u0027timers-nohz-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (39 commits)\n sched: Keep at least 1 tick per second for active dynticks tasks\n rcu: Fix full dynticks\u0027 dependency on wide RCU nocb mode\n nohz: Protect smp_processor_id() in tick_nohz_task_switch()\n nohz_full: Add documentation.\n cputime_nsecs: use math64.h for nsec resolution conversion helpers\n nohz: Select VIRT_CPU_ACCOUNTING_GEN from full dynticks config\n nohz: Reduce overhead under high-freq idling patterns\n nohz: Remove full dynticks\u0027 superfluous dependency on RCU tree\n nohz: Fix unavailable tick_stop tracepoint in dynticks idle\n nohz: Add basic tracing\n nohz: Select wide RCU nocb for full dynticks\n nohz: Disable the tick when irq resume in full dynticks CPU\n nohz: Re-evaluate the tick for the new task after a context switch\n nohz: Prepare to stop the tick on irq exit\n nohz: Implement full dynticks kick\n nohz: Re-evaluate the tick from the scheduler IPI\n sched: New helper to prevent from stopping the tick in full dynticks\n sched: Kick full dynticks CPU that have more than one task enqueued.\n perf: New helper to prevent full dynticks CPUs from stopping tick\n perf: Kick full dynticks CPU if events rotation is needed\n ...\n" }, { "commit": "73c30828771acafb0a5e3a1c4cf75e6c5dc5f98a", "tree": "08cfdcede966b63ff30ccaf6490535c7cc24a441", "parents": [ "c032862fba51a3ca504752d3a25186b324c5ce83" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Fri May 03 01:28:12 2013 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sat May 04 08:30:34 2013 +0200" }, "message": "rcu: Fix full dynticks\u0027 dependency on wide RCU nocb mode\n\nCommit 0637e029392386e6996f5d6574aadccee8315efa\n(\"nohz: Select wide RCU nocb for full dynticks\") intended\nto force CONFIG_RCU_NOCB_CPU_ALL\u003dy when full dynticks is\nenabled.\n\nHowever this option is part of a choice menu and Kconfig\u0027s\n\"select\" instruction has no effect on such targets.\n\nFix this by using reverse dependencies on the targets we\ndon\u0027t want instead.\n\nReviewed-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Christoph Lameter \u003ccl@linux.com\u003e\nCc: Hakan Akkan \u003chakanakkan@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@kernel.org\u003e\nCc: Kevin Hilman \u003ckhilman@linaro.org\u003e\nCc: Li Zhong \u003czhong@linux.vnet.ibm.com\u003e\nCc: Paul Gortmaker \u003cpaul.gortmaker@windriver.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "c032862fba51a3ca504752d3a25186b324c5ce83", "tree": "955dc2ba4ab3df76ecc2bb780ee84aca04967e8d", "parents": [ "fda76e074c7737fc57855dd17c762e50ed526052", "8700c95adb033843fc163d112b9d21d4fda78018" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Thu May 02 17:37:49 2013 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Thu May 02 17:54:19 2013 +0200" }, "message": "Merge commit \u00278700c95adb03\u0027 into timers/nohz\n\nThe full dynticks tree needs the latest RCU and sched\nupstream updates in order to fix some dependencies.\n\nMerge a common upstream merge point that has these\nupdates.\n\nConflicts:\n\tinclude/linux/perf_event.h\n\tkernel/rcutree.h\n\tkernel/rcutree_plugin.h\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "20b4fb485227404329e41ad15588afad3df23050", "tree": "f3e099f0ab3da8a93b447203e294d2bb22f6dc05", "parents": [ "b9394d8a657cd3c064fa432aa0905c1b58b38fe9", "ac3e3c5b1164397656df81b9e9ab4991184d3236" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed May 01 17:51:54 2013 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed May 01 17:51:54 2013 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs\n\nPull VFS updates from Al Viro,\n\nMisc cleanups all over the place, mainly wrt /proc interfaces (switch\ncreate_proc_entry to proc_create(), get rid of the deprecated\ncreate_proc_read_entry() in favor of using proc_create_data() and\nseq_file etc).\n\n7kloc removed.\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (204 commits)\n don\u0027t bother with deferred freeing of fdtables\n proc: Move non-public stuff from linux/proc_fs.h to fs/proc/internal.h\n proc: Make the PROC_I() and PDE() macros internal to procfs\n proc: Supply a function to remove a proc entry by PDE\n take cgroup_open() and cpuset_open() to fs/proc/base.c\n ppc: Clean up scanlog\n ppc: Clean up rtas_flash driver somewhat\n hostap: proc: Use remove_proc_subtree()\n drm: proc: Use remove_proc_subtree()\n drm: proc: Use minor-\u003eindex to label things, not PDE-\u003ename\n drm: Constify drm_proc_list[]\n zoran: Don\u0027t print proc_dir_entry data in debug\n reiserfs: Don\u0027t access the proc_dir_entry in r_open(), r_start() r_show()\n proc: Supply an accessor for getting the data from a PDE\u0027s parent\n airo: Use remove_proc_subtree()\n rtl8192u: Don\u0027t need to save device proc dir PDE\n rtl8187se: Use a dir under /proc/net/r8180/\n proc: Add proc_mkdir_data()\n proc: Move some bits from linux/proc_fs.h to linux/{of.h,signal.h,tty.h}\n proc: Move PDE_NET() to fs/proc/proc_net.c\n ...\n" }, { "commit": "0bb80f240520c4148b623161e7856858c021696d", "tree": "eeb27af589bc12d5864bd2594e5eea59aabe37db", "parents": [ "c3bef7bcaaa7d9f6704fcd81a171c9f0c91a2259" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 12 01:50:06 2013 +0100" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Wed May 01 17:29:39 2013 -0400" }, "message": "proc: Split the namespace stuff out into linux/proc_ns.h\n\nSplit the proc namespace stuff out into linux/proc_ns.h.\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\ncc: netdev@vger.kernel.org\ncc: Serge E. Hallyn \u003cserge.hallyn@ubuntu.com\u003e\ncc: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "bf5d770bd234a1e66322dd79c4ae5b397cd2b9c1", "tree": "b92a59f7e8cc4417fb2ab853fc08c5dd21538581", "parents": [ "a49fe6d59aae7f7835288df508b709ed2d69cbab" ], "author": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed May 01 13:35:51 2013 -0400" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed May 01 10:44:24 2013 -0700" }, "message": "init: Do not warn on non-zero initcall return\n\nCommit f91eb62f71b3 (\"init: scream bloody murder if interrupts are\nenabled too early\") added three new warnings. The first two seemed\nreasonable, but the third included a warning when an initcall returned\nnon-zero. Although, the third WARN() does include an imbalanced preempt\ndisabled, or irqs disable, it shouldn\u0027t warn if it only had an initcall\nthat just returns non-zero.\n\nIn fact, according to Linus, it shouldn\u0027t print at all. As it only\nprints with initcall_debug set, and that already shows enough\ninformation to fix things.\n\nLink: http://lkml.kernel.org/r/CA+55aFzaBC5SFi7\u003dF2mfm+KWY5qTsBmOqgbbs8E+LUS8JK-sBg@mail.gmail.com\n\nSuggested-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nReported-by: Konrad Rzeszutek Wilk \u003ckonrad.wilk@oracle.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "657a52095fa3e8560d41047851f4e73a410f3ed2", "tree": "b53e090824a342394dcfbb0e56047a3c0ac9e900", "parents": [ "966f3096b18bf13385799ef745e114a8f292ed69" ], "author": { "name": "Mike Frysinger", "email": "vapier@gentoo.org", "time": "Tue Apr 30 15:28:45 2013 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Apr 30 17:04:09 2013 -0700" }, "message": "init/Kconfig: re-order CONFIG_EXPERT options to fix menuconfig display\n\nThe kconfig language requires that dependent options all follow the\nmenuconfig symbol in order to be collapsed below it. Recently some hidden\noptions were added below the EXPERT menuconfig, but did not depend on\nEXPERT (because hidden options can\u0027t). This broke the display. So\nre-order all these options, and while we\u0027re here stick the PCI quirks\nunder the EXPERT menu (since it isn\u0027t sitting with any related options).\n\nBefore this commit, we get:\n\t[*] Configure standard kernel features (expert users) ---\u003e\n\t[ ] Sysctl syscall support\n\t[*] Load all symbols for debugging/ksymoops\n\t...\n\t[ ] Embedded system\n\nNow we get the older (and correct) behavior:\n\t[*] Configure standard kernel features (expert users) ---\u003e\n\t[ ] Embedded system\nAnd if you go into the expert menu you get the expert options:\n\t[ ] Sysctl syscall support\n\t[*] Load all symbols for debugging/ksymoops\n\t...\n\nSigned-off-by: Mike Frysinger \u003cvapier@gentoo.org\u003e\nAcked-by: Randy Dunlap \u003crdunlap@infradead.org\u003e\nCc: zhangwei(Jovi) \u003cjovi.zhangwei@huawei.com\u003e\nCc: Michal Marek \u003cmmarek@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "907ed1328d2a748f3d6028503d3e04c74ea62730", "tree": "e91582c2932917736319430f501ee5a9b9f4a0a7", "parents": [ "fb96c475f6b27bd2c7f6fe0720e6972909a203ca" ], "author": { "name": "Lucas De Marchi", "email": "lucas.demarchi@profusion.mobi", "time": "Tue Apr 30 15:28:07 2013 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Apr 30 17:04:06 2013 -0700" }, "message": "usermodehelper: split remaining calls to call_usermodehelper_fns()\n\nThese are the only users of call_usermodehelper_fns(). This function\nsuffers from not being able to determine if the cleanup is called. Even\nif in this places the cleanup pointer is NULL, convert them to use the\nseparate call_usermodehelper_setup() + call_usermodehelper_exec()\nfunctions so we can remove the _fns variant.\n\nSigned-off-by: Lucas De Marchi \u003clucas.demarchi@profusion.mobi\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: David Howells \u003cdhowells@redhat.com\u003e\nCc: James Morris \u003cjames.l.morris@oracle.com\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: Tejun Heo \u003ctj@kernel.org\u003e\nCc: \"Rafael J. Wysocki\" \u003crjw@sisk.pl\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "ab86e974f04b1cd827a9c7c35273834ebcd9ab38", "tree": "41df33732d2700d6d57d1e7ab3f430942f09ffcc", "parents": [ "8700c95adb033843fc163d112b9d21d4fda78018", "6f7a05d7018de222e40ca003721037a530979974" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Apr 30 08:15:40 2013 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Apr 30 08:15:40 2013 -0700" }, "message": "Merge branch \u0027timers-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull core timer updates from Ingo Molnar:\n \"The main changes in this cycle\u0027s merge are:\n\n - Implement shadow timekeeper to shorten in kernel reader side\n blocking, by Thomas Gleixner.\n\n - Posix timers enhancements by Pavel Emelyanov:\n\n - allocate timer ID per process, so that exact timer ID allocations\n can be re-created be checkpoint/restore code.\n\n - debuggability and tooling (/proc/PID/timers, etc.) improvements.\n\n - suspend/resume enhancements by Feng Tang: on certain new Intel Atom\n processors (Penwell and Cloverview), there is a feature that the\n TSC won\u0027t stop in S3 state, so the TSC value won\u0027t be reset to 0\n after resume. This can be taken advantage of by the generic via\n the CLOCK_SOURCE_SUSPEND_NONSTOP flag: instead of using the RTC to\n recover/approximate sleep time, the main (and precise) clocksource\n can be used.\n\n - Fix /proc/timer_list for 4096 CPUs by Nathan Zimmer: on so many\n CPUs the file goes beyond 4MB of size and thus the current\n simplistic seqfile approach fails. Convert /proc/timer_list to a\n proper seq_file with its own iterator.\n\n - Cleanups and refactorings of the core timekeeping code by John\n Stultz.\n\n - International Atomic Clock time is managed by the NTP code\n internally currently but not exposed externally. Separate the TAI\n code out and add CLOCK_TAI support and TAI support to the hrtimer\n and posix-timer code, by John Stultz.\n\n - Add deep idle support enhacement to the broadcast clockevents core\n timer code, by Daniel Lezcano: add an opt-in CLOCK_EVT_FEAT_DYNIRQ\n clockevents feature (which will be utilized by future clockevents\n driver updates), which allows the use of IRQ affinities to avoid\n spurious wakeups of idle CPUs - the right CPU with an expiring\n timer will be woken.\n\n - Add new ARM bcm281xx clocksource driver, by Christian Daudt\n\n - ... various other fixes and cleanups\"\n\n* \u0027timers-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (52 commits)\n clockevents: Set dummy handler on CPU_DEAD shutdown\n timekeeping: Update tk-\u003ecycle_last in resume\n posix-timers: Remove unused variable\n clockevents: Switch into oneshot mode even if broadcast registered late\n timer_list: Convert timer list to be a proper seq_file\n timer_list: Split timer_list_show_tickdevices\n posix-timers: Show sigevent info in proc file\n posix-timers: Introduce /proc/PID/timers file\n posix timers: Allocate timer id per process (v2)\n timekeeping: Make sure to notify hrtimers when TAI offset changes\n hrtimer: Fix ktime_add_ns() overflow on 32bit architectures\n hrtimer: Add expiry time overflow check in hrtimer_interrupt\n timekeeping: Shorten seq_count region\n timekeeping: Implement a shadow timekeeper\n timekeeping: Delay update of clock-\u003ecycle_last\n timekeeping: Store cycle_last value in timekeeper struct as well\n ntp: Remove ntp_lock, using the timekeeping locks to protect ntp state\n timekeeping: Simplify tai updating from do_adjtimex\n timekeeping: Hold timekeepering locks in do_adjtimex and hardpps\n timekeeping: Move ADJ_SETOFFSET to top level do_adjtimex()\n ...\n" }, { "commit": "8700c95adb033843fc163d112b9d21d4fda78018", "tree": "7bb9a37b8fe6328f63a61d88063c556346001098", "parents": [ "16fa94b532b1958f508e07eca1a9256351241fbc", "d190e8195b90bc1e65c494fe08e54e9e581bfd16" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Apr 30 07:50:17 2013 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Apr 30 07:50:17 2013 -0700" }, "message": "Merge branch \u0027smp-hotplug-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull SMP/hotplug changes from Ingo Molnar:\n \"This is a pretty large, multi-arch series unifying and generalizing\n the various disjunct pieces of idle routines that architectures have\n historically copied from each other and have grown in random, wildly\n inconsistent and sometimes buggy directions:\n\n 101 files changed, 455 insertions(+), 1328 deletions(-)\n\n this went through a number of review and test iterations before it was\n committed, it was tested on various architectures, was exposed to\n linux-next for quite some time - nevertheless it might cause problems\n on architectures that don\u0027t read the mailing lists and don\u0027t regularly\n test linux-next.\n\n This cat herding excercise was motivated by the -rt kernel, and was\n brought to you by Thomas \"the Whip\" Gleixner.\"\n\n* \u0027smp-hotplug-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (40 commits)\n idle: Remove GENERIC_IDLE_LOOP config switch\n um: Use generic idle loop\n ia64: Make sure interrupts enabled when we \"safe_halt()\"\n sparc: Use generic idle loop\n idle: Remove unused ARCH_HAS_DEFAULT_IDLE\n bfin: Fix typo in arch_cpu_idle()\n xtensa: Use generic idle loop\n x86: Use generic idle loop\n unicore: Use generic idle loop\n tile: Use generic idle loop\n tile: Enter idle with preemption disabled\n sh: Use generic idle loop\n score: Use generic idle loop\n s390: Use generic idle loop\n powerpc: Use generic idle loop\n parisc: Use generic idle loop\n openrisc: Use generic idle loop\n mn10300: Use generic idle loop\n mips: Use generic idle loop\n microblaze: Use generic idle loop\n ...\n" }, { "commit": "16fa94b532b1958f508e07eca1a9256351241fbc", "tree": "90012a7b7fe2b8cf96f6f5ec12490e0c5e152291", "parents": [ "e0972916e8fe943f342b0dd1c9d43dbf5bc261c2", "25f55d9d01ad7a7ad248fd5af1d22675ffd202c5" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Apr 30 07:43:28 2013 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Apr 30 07:43:28 2013 -0700" }, "message": "Merge branch \u0027sched-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull scheduler changes from Ingo Molnar:\n \"The main changes in this development cycle were:\n\n - full dynticks preparatory work by Frederic Weisbecker\n\n - factor out the cpu time accounting code better, by Li Zefan\n\n - multi-CPU load balancer cleanups and improvements by Joonsoo Kim\n\n - various smaller fixes and cleanups\"\n\n* \u0027sched-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (45 commits)\n sched: Fix init NOHZ_IDLE flag\n sched: Prevent to re-select dst-cpu in load_balance()\n sched: Rename load_balance_tmpmask to load_balance_mask\n sched: Move up affinity check to mitigate useless redoing overhead\n sched: Don\u0027t consider other cpus in our group in case of NEWLY_IDLE\n sched: Explicitly cpu_idle_type checking in rebalance_domains()\n sched: Change position of resched_cpu() in load_balance()\n sched: Fix wrong rq\u0027s runnable_avg update with rt tasks\n sched: Document task_struct::personality field\n sched/cpuacct/UML: Fix header file dependency bug on the UML build\n cgroup: Kill subsys.active flag\n sched/cpuacct: No need to check subsys active state\n sched/cpuacct: Initialize cpuacct subsystem earlier\n sched/cpuacct: Initialize root cpuacct earlier\n sched/cpuacct: Allocate per_cpu cpuusage for root cpuacct statically\n sched/cpuacct: Clean up cpuacct.h\n sched/cpuacct: Remove redundant NULL checks in cpuacct_acount_field()\n sched/cpuacct: Remove redundant NULL checks in cpuacct_charge()\n sched/cpuacct: Add cpuacct_acount_field()\n sched/cpuacct: Add cpuacct_init()\n ...\n" }, { "commit": "1f889ec62c3f0d8913f3c32f9aff2a1e15099346", "tree": "381a74ab73c865ba6d1c77df39898dd4f81cfeef", "parents": [ "6c24499f40d96bf07a85b709fb1bee5cea611a1d", "8fcfae31719c0a6c03f2cf63f815b46d378d8be4" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Apr 30 07:39:01 2013 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Apr 30 07:39:01 2013 -0700" }, "message": "Merge branch \u0027core-rcu-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull RCU updates from Ingo Molnar:\n \"The main changes in this cycle are mostly related to preparatory work\n for the full-dynticks work:\n\n - Remove restrictions on no-CBs CPUs, make RCU_FAST_NO_HZ take\n advantage of numbered callbacks, do callback accelerations based on\n numbered callbacks. Posted to LKML at\n https://lkml.org/lkml/2013/3/18/960\n\n - RCU documentation updates. Posted to LKML at\n https://lkml.org/lkml/2013/3/18/570\n\n - Miscellaneous fixes. Posted to LKML at\n https://lkml.org/lkml/2013/3/18/594\"\n\n* \u0027core-rcu-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)\n rcu: Make rcu_accelerate_cbs() note need for future grace periods\n rcu: Abstract rcu_start_future_gp() from rcu_nocb_wait_gp()\n rcu: Rename n_nocb_gp_requests to need_future_gp\n rcu: Push lock release to rcu_start_gp()\u0027s callers\n rcu: Repurpose no-CBs event tracing to future-GP events\n rcu: Rearrange locking in rcu_start_gp()\n rcu: Make RCU_FAST_NO_HZ take advantage of numbered callbacks\n rcu: Accelerate RCU callbacks at grace-period end\n rcu: Export RCU_FAST_NO_HZ parameters to sysfs\n rcu: Distinguish \"rcuo\" kthreads by RCU flavor\n rcu: Add event tracing for no-CBs CPUs\u0027 grace periods\n rcu: Add event tracing for no-CBs CPUs\u0027 callback registration\n rcu: Introduce proper blocking to no-CBs kthreads GP waits\n rcu: Provide compile-time control for no-CBs CPUs\n rcu: Tone down debugging during boot-up and shutdown.\n rcu: Add softirq-stall indications to stall-warning messages\n rcu: Documentation update\n rcu: Make bugginess of code sample more evident\n rcu: Fix hlist_bl_set_first_rcu() annotation\n rcu: Delete unused rcu_node \"wakemask\" field\n ...\n" }, { "commit": "ea676e846a8171b8e215627259f485a4e70328cb", "tree": "01e489c639bec5a2e84c6f7398176643eee183a7", "parents": [ "c2409b004ac4757ac5121851f8a58e0bcbcf7a3c" ], "author": { "name": "Andrew Morton", "email": "akpm@linux-foundation.org", "time": "Mon Apr 29 16:18:20 2013 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Apr 29 18:28:20 2013 -0700" }, "message": "init/main.c: convert to pr_foo()\n\nAlso enables cleanup of some 80-col trickery.\n\nCc: Richard Weinberger \u003crichard@nod.at\u003e\nCc: Uwe Kleine-König \u003cu.kleine-koenig@pengutronix.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c2409b004ac4757ac5121851f8a58e0bcbcf7a3c", "tree": "a5537edab10b0ae5f29d16e75ce67df034d8666a", "parents": [ "f91eb62f71b31e69e405663ff8d047bc3b9f7525" ], "author": { "name": "Richard Weinberger", "email": "richard@nod.at", "time": "Mon Apr 29 16:18:19 2013 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Apr 29 18:28:20 2013 -0700" }, "message": "init: raise log level\n\nIf the kernel was booted with the \"quiet\" boot option we have currently no\nchance to see why an initrd fails. Change KERN_WARNING to KERN_ERR to see\nwhat is going on.\n\nSigned-off-by: Richard Weinberger \u003crichard@nod.at\u003e\nCc: \"H. Peter Anvin\" \u003chpa@zytor.com\u003e\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: Jim Cromie \u003cjim.cromie@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "f91eb62f71b31e69e405663ff8d047bc3b9f7525", "tree": "7a61eb166aa50db4436dcaa3f5d0f385530dcb59", "parents": [ "8543ae1296f6ec1490c7afab6ae0fe97bf87ebf8" ], "author": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Mon Apr 29 16:18:18 2013 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Apr 29 18:28:20 2013 -0700" }, "message": "init: scream bloody murder if interrupts are enabled too early\n\nAs I was testing a lot of my code recently, and having several\n\"successes\", I accidentally noticed in the dmesg this little line:\n\n start_kernel(): bug: interrupts were enabled *very* early, fixing it\n\nSure enough, one of my patches two commits ago enabled interrupts early.\nThe sad part here is that I never noticed it, and I ran several tests with\nktest too, and ktest did not notice this line.\n\nWhat ktest looks for (and so does many other automated testing scripts) is\na back trace produced by a WARN_ON() or BUG(). As a back trace was never\nproduced, my buggy patch could have slipped into linux-next, or even\nworse, mainline.\n\nAdding a WARN(!irqs_disabled()) makes this bug a little more obvious:\n\n PID hash table entries: 4096 (order: 3, 32768 bytes)\n __ex_table already sorted, skipping sort\n Checking aperture...\n No AGP bridge found\n Calgary: detecting Calgary via BIOS EBDA area\n Calgary: Unable to locate Rio Grande table in EBDA - bailing!\n Memory: 2003252k/2054848k available (4857k kernel code, 460k absent, 51136k reserved, 6210k data, 1096k init)\n ------------[ cut here ]------------\n WARNING: at /home/rostedt/work/git/linux-trace.git/init/main.c:543 start_kernel+0x21e/0x415()\n Hardware name: To Be Filled By O.E.M.\n Interrupts were enabled *very* early, fixing it\n Modules linked in:\n Pid: 0, comm: swapper/0 Not tainted 3.8.0-test+ #286\n Call Trace:\n warn_slowpath_common+0x83/0x9b\n warn_slowpath_fmt+0x46/0x48\n start_kernel+0x21e/0x415\n x86_64_start_reservations+0x10e/0x112\n x86_64_start_kernel+0x102/0x111\n ---[ end trace 007d8b0491b4f5d8 ]---\n Preemptible hierarchical RCU implementation.\n RCU restricting CPUs from NR_CPUS\u003d8 to nr_cpu_ids\u003d4.\n NR_IRQS:4352 nr_irqs:712 16\n Console: colour VGA+ 80x25\n console [ttyS0] enabled, bootconsole disabled\n\nDo you see it?\n\nThe original version of this patch just slapped a WARN_ON() in there and\nkept the printk(). Ard van Breemen suggested using the WARN() interface,\nwhich makes the code a bit cleaner.\n\nAlso, while examining other warnings in init/main.c, I found two other\nlocations that deserve a bloody murder scream if their conditions are hit,\nand updated them accordingly.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Ard van Breemen \u003card@telegraafnet.nl\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c58b0df12a6b5c497637db0676effd00e1fbab13", "tree": "fcceffefccc7c2e33d87406a5e4531c4c613a5ec", "parents": [ "65e709dc0c25dbd563861924815e9a3a93878b75" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Fri Apr 26 15:16:31 2013 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Fri Apr 26 18:56:59 2013 +0200" }, "message": "nohz: Select VIRT_CPU_ACCOUNTING_GEN from full dynticks config\n\nTurn the full dynticks passive dependency on VIRT_CPU_ACCOUNTING_GEN\nto an active one.\n\nThe full dynticks Kconfig is currently hidden behind the full dynticks\ncputime accounting, which is an awkward and counter-intuitive layout:\nthe user first has to select the dynticks cputime accounting in order\nto make the full dynticks feature to be visible.\n\nWe definetly want it the other way around. The usual way to perform\nthis kind of active dependency is use \"select\" on the depended target.\nNow we can\u0027t use the Kconfig \"select\" instruction when the target is\na \"choice\".\n\nSo this patch inspires on how the RCU subsystem Kconfig interact\nwith its dependencies on SMP and PREEMPT: we make sure that cputime\naccounting can\u0027t propose another option than VIRT_CPU_ACCOUNTING_GEN\nwhen NO_HZ_FULL is selected by using the right \"depends on\" instruction\nfor each cputime accounting choices.\n\nv2: Keep full dynticks cputime accounting available even without\nfull dynticks, as per Paul McKenney\u0027s suggestion.\n\nReported-by: Ingo Molnar \u003cmingo@kernel.org\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Christoph Lameter \u003ccl@linux.com\u003e\nCc: Hakan Akkan \u003chakanakkan@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@kernel.org\u003e\nCc: Kevin Hilman \u003ckhilman@linaro.org\u003e\nCc: Li Zhong \u003czhong@linux.vnet.ibm.com\u003e\nCc: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nCc: Paul Gortmaker \u003cpaul.gortmaker@windriver.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "6402c7dc2a19c19bd8cdc7d80878b850da418942", "tree": "cda2ea2df40442e2aa016119f3548cc504127ea8", "parents": [ "77c675ba18836802f6b73d2d773481d06ebc0f04", "60d509fa6a9c4653a86ad830e4c4b30360b23f0e" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed Apr 24 20:33:46 2013 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed Apr 24 20:33:54 2013 +0200" }, "message": "Merge branch \u0027linus\u0027 into timers/core\nReason: Get upstream fixes before adding conflicting code.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "d1e43fa5f8bb25f83a86a29f11fcfb57ed4d7566", "tree": "9eff00255c1061248b6aef2c8341ea527610150c", "parents": [ "0453b435df0d69dd0d8c42eb9b3015aaf0d8a032" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Mar 26 23:47:24 2013 +0100" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Fri Apr 19 13:54:04 2013 +0200" }, "message": "nohz: Ensure full dynticks CPUs are RCU nocbs\n\nWe need full dynticks CPU to also be RCU nocb so\nthat we don\u0027t have to keep the tick to handle RCU\ncallbacks.\n\nMake sure the range passed to nohz_full\u003d boot\nparameter is a subset of rcu_nocbs\u003d\n\nThe CPUs that fail to meet this requirement will be\nexcluded from the nohz_full range. This is checked\nearly in boot time, before any CPU has the opportunity\nto stop its tick.\n\nSuggested-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nReviewed-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: Chris Metcalf \u003ccmetcalf@tilera.com\u003e\nCc: Christoph Lameter \u003ccl@linux.com\u003e\nCc: Geoff Levand \u003cgeoff@infradead.org\u003e\nCc: Gilad Ben Yossef \u003cgilad@benyossef.com\u003e\nCc: Hakan Akkan \u003chakanakkan@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@kernel.org\u003e\nCc: Kevin Hilman \u003ckhilman@linaro.org\u003e\nCc: Li Zhong \u003czhong@linux.vnet.ibm.com\u003e\nCc: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nCc: Paul Gortmaker \u003cpaul.gortmaker@windriver.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "8fcfae31719c0a6c03f2cf63f815b46d378d8be4", "tree": "3da9d65885de6a2b046fbd5eebc0d19def0c1e2c", "parents": [ "d02a9a89db3437467de45a451739e520877f4a48", "6d87669357936bffa1e8fea7a4e7743e76905736" ], "author": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed Apr 10 12:55:49 2013 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed Apr 10 12:55:49 2013 +0200" }, "message": "Merge branch \u0027rcu/next\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu\n\nPull RCU updates from Paul E. McKenney:\n\n * Remove restrictions on no-CBs CPUs, make RCU_FAST_NO_HZ\n take advantage of numbered callbacks, do additional callback\n accelerations based on numbered callbacks. Posted to LKML\n at https://lkml.org/lkml/2013/3/18/960.\n\n * RCU documentation updates. Posted to LKML at\n https://lkml.org/lkml/2013/3/18/570.\n\n * Miscellaneous fixes. Posted to LKML at\n https://lkml.org/lkml/2013/3/18/594.\n\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "a1a04ec3c7c27a682473fd9beb2c996316a64649", "tree": "9075a4b4c001f81283b2a7d5c1668dee134ec81d", "parents": [ "3a98f871ecaf44806e188184332c3fec27c8f08c" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Thu Mar 21 22:49:34 2013 +0100" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Apr 08 17:39:23 2013 +0200" }, "message": "idle: Provide a generic entry point for the idle code\n\nFor now this calls cpu_idle(), but in the long run we want to move the\ncpu bringup code to the core and therefor we add a state argument.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: Paul McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nReviewed-by: Cc: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\nCc: Magnus Damm \u003cmagnus.damm@gmail.com\u003e\nLink: http://lkml.kernel.org/r/20130321215233.583190032@linutronix.de\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "3451d0243c3cdfd729b36f9684a14659d4895ca3", "tree": "5307f4492708ae089dd0a6d81b54f9e606707ca8", "parents": [ "ab71d36ddb9e60d4ddb28a187718815d38c3c666" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Aug 10 23:21:01 2011 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Apr 03 13:56:03 2013 +0200" }, "message": "nohz: Rename CONFIG_NO_HZ to CONFIG_NO_HZ_COMMON\n\nWe are planning to convert the dynticks Kconfig options layout\ninto a choice menu. The user must be able to easily pick\nany of the following implementations: constant periodic tick,\nidle dynticks, full dynticks.\n\nAs this implies a mutual exclusion, the two dynticks implementions\nneed to converge on the selection of a common Kconfig option in order\nto ease the sharing of a common infrastructure.\n\nIt would thus seem pretty natural to reuse CONFIG_NO_HZ to\nthat end. It already implements all the idle dynticks code\nand the full dynticks depends on all that code for now.\nSo ideally the choice menu would propose CONFIG_NO_HZ_IDLE and\nCONFIG_NO_HZ_EXTENDED then both would select CONFIG_NO_HZ.\n\nOn the other hand we want to stay backward compatible: if\nCONFIG_NO_HZ is set in an older config file, we want to\nenable CONFIG_NO_HZ_IDLE by default.\n\nBut we can\u0027t afford both at the same time or we run into\na circular dependency:\n\n1) CONFIG_NO_HZ_IDLE and CONFIG_NO_HZ_EXTENDED both select\n CONFIG_NO_HZ\n2) If CONFIG_NO_HZ is set, we default to CONFIG_NO_HZ_IDLE\n\nWe might be able to support that from Kconfig/Kbuild but it\nmay not be wise to introduce such a confusing behaviour.\n\nSo to solve this, create a new CONFIG_NO_HZ_COMMON option\nwhich gathers the common code between idle and full dynticks\n(that common code for now is simply the idle dynticks code)\nand select it from their referring Kconfig.\n\nThen we\u0027ll later create CONFIG_NO_HZ_IDLE and map CONFIG_NO_HZ\nto it for backward compatibility.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: Chris Metcalf \u003ccmetcalf@tilera.com\u003e\nCc: Christoph Lameter \u003ccl@linux.com\u003e\nCc: Geoff Levand \u003cgeoff@infradead.org\u003e\nCc: Gilad Ben Yossef \u003cgilad@benyossef.com\u003e\nCc: Hakan Akkan \u003chakanakkan@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@kernel.org\u003e\nCc: Kevin Hilman \u003ckhilman@linaro.org\u003e\nCc: Li Zhong \u003czhong@linux.vnet.ibm.com\u003e\nCc: Namhyung Kim \u003cnamhyung.kim@lge.com\u003e\nCc: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nCc: Paul Gortmaker \u003cpaul.gortmaker@windriver.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "c0f4dfd4f90f1667d234d21f15153ea09a2eaa66", "tree": "e06fa6eef015a373849855249752ec525ca8ad4b", "parents": [ "b11cc5760a9c48c870ad286e8a6d8fdb998fa58d" ], "author": { "name": "Paul E. McKenney", "email": "paul.mckenney@linaro.org", "time": "Fri Dec 28 11:30:36 2012 -0800" }, "committer": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Tue Mar 26 08:04:51 2013 -0700" }, "message": "rcu: Make RCU_FAST_NO_HZ take advantage of numbered callbacks\n\nBecause RCU callbacks are now associated with the number of the grace\nperiod that they must wait for, CPUs can now take advance callbacks\ncorresponding to grace periods that ended while a given CPU was in\ndyntick-idle mode. This eliminates the need to try forcing the RCU\nstate machine while entering idle, thus reducing the CPU intensiveness\nof RCU_FAST_NO_HZ, which should increase its energy efficiency.\n\nSigned-off-by: Paul E. McKenney \u003cpaul.mckenney@linaro.org\u003e\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\n" }, { "commit": "a488985851cf2facd2227bd982cc2c251df56268", "tree": "450d84d1fc01bd7997b651e47d2587fac5c6f085", "parents": [ "09c7b890622d72b5e004cc249bbe610e8b928ddf" ], "author": { "name": "Paul E. McKenney", "email": "paul.mckenney@linaro.org", "time": "Mon Dec 03 08:16:28 2012 -0800" }, "committer": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Tue Mar 26 08:04:48 2013 -0700" }, "message": "rcu: Distinguish \"rcuo\" kthreads by RCU flavor\n\nCurrently, the per-no-CBs-CPU kthreads are named \"rcuo\" followed by\nthe CPU number, for example, \"rcuo\". This is problematic given that\nthere are either two or three RCU flavors, each of which gets a per-CPU\nkthread with exactly the same name. This commit therefore introduces\na one-letter abbreviation for each RCU flavor, namely \u0027b\u0027 for RCU-bh,\n\u0027p\u0027 for RCU-preempt, and \u0027s\u0027 for RCU-sched. This abbreviation is used\nto distinguish the \"rcuo\" kthreads, for example, for CPU 0 we would have\n\"rcuob/0\", \"rcuop/0\", and \"rcuos/0\".\n\nSigned-off-by: Paul E. McKenney \u003cpaul.mckenney@linaro.org\u003e\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nTested-by: Dietmar Eggemann \u003cdietmar.eggemann@arm.com\u003e\n" }, { "commit": "911af505ef407c2511106c224dd640f882f0f590", "tree": "00656ef4be8d1195a568951333dd9618265c6435", "parents": [ "34ed62461ae4970695974afb9a60ac3df0086830" ], "author": { "name": "Paul E. McKenney", "email": "paul.mckenney@linaro.org", "time": "Mon Feb 11 10:23:27 2013 -0800" }, "committer": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Tue Mar 26 08:04:43 2013 -0700" }, "message": "rcu: Provide compile-time control for no-CBs CPUs\n\nCurrently, the only way to specify no-CBs CPUs is via the rcu_nocbs\nkernel command-line parameter. This is inconvenient in some cases,\nparticularly for randconfig testing, so this commit adds a new set of\nkernel configuration parameters. CONFIG_RCU_NOCB_CPU_NONE (the default)\nretains the old behavior, CONFIG_RCU_NOCB_CPU_ZERO offloads callback\nprocessing from CPU 0 (along with any other CPUs specified by the\nrcu_nocbs boot-time parameter), and CONFIG_RCU_NOCB_CPU_ALL offloads\ncallback processing from all CPUs.\n\nSigned-off-by: Paul E. McKenney \u003cpaul.mckenney@linaro.org\u003e\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\n" }, { "commit": "3d374d09f16f64ab4d71704cbe621514d36cd0b1", "tree": "4183c1b939a0a4a6bab29e5c9acbd5891489f928", "parents": [ "9d1817cab2f030f6af360e961cc69bb1da8ad765" ], "author": { "name": "Kees Cook", "email": "keescook@chromium.org", "time": "Wed Mar 06 12:35:31 2013 -0800" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@linuxfoundation.org", "time": "Tue Mar 12 16:30:27 2013 -0700" }, "message": "final removal of CONFIG_EXPERIMENTAL\n\nRemove \"config EXPERIMENTAL\" itself, now that every \"depends on\" it has\nbeen removed from the tree.\n\nSigned-off-by: Kees Cook \u003ckeescook@chromium.org\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@linuxfoundation.org\u003e\n" }, { "commit": "34ed62461ae4970695974afb9a60ac3df0086830", "tree": "d65a582953a66ee089074fd5a57e39460d4ce2c6", "parents": [ "f6161aa153581da4a3867a2d1a7caf4be19b6ec9" ], "author": { "name": "Paul E. McKenney", "email": "paul.mckenney@linaro.org", "time": "Mon Jan 07 13:37:42 2013 -0800" }, "committer": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Tue Mar 12 11:17:51 2013 -0700" }, "message": "rcu: Remove restrictions on no-CBs CPUs\n\nCurrently, CPU 0 is constrained to not be a no-CBs CPU, and furthermore\nat least one no-CBs CPU must remain online at any given time. These\nrestrictions are problematic in some situations, such as cases where\nall CPUs must run a real-time workload that needs to be insulated from\nOS jitter and latencies due to RCU callback invocation. This commit\ntherefore provides no-CBs CPUs a (very crude and energy-inefficient)\nway to start and to wait for grace periods independently of the normal\nRCU callback mechanisms. This approach allows any or all of the CPUs to\nbe designated as no-CBs CPUs, and allows any proper subset of the CPUs\n(whether no-CBs CPUs or not) to be offlined.\n\nThis commit also provides a fix for a locking bug spotted by Xie\nChanglongX \u003cchanglongx.xie@intel.com\u003e.\n\nSigned-off-by: Paul E. McKenney \u003cpaul.mckenney@linaro.org\u003e\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\n" }, { "commit": "8b43876643a737bb74a0e1e557f634eb2453948b", "tree": "00069e6daa2eb10a7f54dbb2eee1f4319e7b1d69", "parents": [ "9fbc42eac1f6917081dc3b39922b2f1c57fdff28" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Feb 26 15:37:59 2013 +0100" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Thu Mar 07 17:10:41 2013 +0100" }, "message": "context_tracking: Enable probes by default for selftesting\n\nUntil we provide the nohz_mask boot parameter, keeping\nthe context tracking probes disabled by default is pointless\nsince what we want is to runtime test this code anyway.\n\nIt\u0027s furthermore confusing for the users which don\u0027t expect\nthe probes to be off when they select RCU user mode or full\ndynticks cputime accounting.\n\nLet\u0027s enable these probes selftests by default for now.\n\nSuggested: Steven Rostedt \u003crostedt@goodmis.org\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Li Zhong \u003czhong@linux.vnet.ibm.com\u003e\nCc: Kevin Hilman \u003ckhilman@linaro.org\u003e\nCc: Mats Liljegren \u003cmats.liljegren@enea.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Ingo Molnar \u003cmingo@kernel.org\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Namhyung Kim \u003cnamhyung.kim@lge.com\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\n" }, { "commit": "ad2b13536ace08dfcca4cf86b75a5d06efe06373", "tree": "b518daf029f3337ed438d620538129e95ded31ab", "parents": [ "6dbe51c251a327e012439c4772097a13df43c5b8" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Mar 05 15:14:05 2013 +0100" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Thu Mar 07 16:13:25 2013 +0100" }, "message": "tick: Call tick_init late\n\nTo convert the clockevents code to cpumask_var_t we need to move the\ninit call after the allocator setup. \n\nClockevents are earliest registered from time_init() as they need\ninterrupts being set up, so this is safe.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nLink: http://lkml.kernel.org/r/20130306111537.304379448@linutronix.de\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n" }, { "commit": "e23b62256a361611cbd45cd1456638f1a5106b5c", "tree": "472968c961432a1d9d0c3634ca20433f1d9cd29b", "parents": [ "aebb2afd5420c860b7fbc3882a323ef1247fbf16", "8ccfe6675fa974bd06d64f74d0fdee6a5267d2aa" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Mar 02 07:58:56 2013 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Mar 02 07:58:56 2013 -0800" }, "message": "Merge tag \u0027arc-v3.9-rc1-late\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc\n\nPull new ARC architecture from Vineet Gupta:\n \"Initial ARC Linux port with some fixes on top for 3.9-rc1:\n\n I would like to introduce the Linux port to ARC Processors (from\n Synopsys) for 3.9-rc1. The patch-set has been discussed on the public\n lists since Nov and has received a fair bit of review, specially from\n Arnd, tglx, Al and other subsystem maintainers for DeviceTree, kgdb...\n\n The arch bits are in arch/arc, some asm-generic changes (acked by\n Arnd), a minor change to PARISC (acked by Helge).\n\n The series is a touch bigger for a new port for 2 main reasons:\n\n 1. It enables a basic kernel in first sub-series and adds\n ptrace/kgdb/.. later\n\n 2. Some of the fallout of review (DeviceTree support, multi-platform-\n image support) were added on top of orig series, primarily to\n record the revision history.\n\n This updated pull request additionally contains\n\n - fixes due to our GNU tools catching up with the new syscall/ptrace\n ABI\n\n - some (minor) cross-arch Kconfig updates.\"\n\n* tag \u0027arc-v3.9-rc1-late\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: (82 commits)\n ARC: split elf.h into uapi and export it for userspace\n ARC: Fixup the current ABI version\n ARC: gdbserver using regset interface possibly broken\n ARC: Kconfig cleanup tracking cross-arch Kconfig pruning in merge window\n ARC: make a copy of flat DT\n ARC: [plat-arcfpga] DT arc-uart bindings change: \"baud\" \u003d\u003e \"current-speed\"\n ARC: Ensure CONFIG_VIRT_TO_BUS is not enabled\n ARC: Fix pt_orig_r8 access\n ARC: [3.9] Fallout of hlist iterator update\n ARC: 64bit RTSC timestamp hardware issue\n ARC: Don\u0027t fiddle with non-existent caches\n ARC: Add self to MAINTAINERS\n ARC: Provide a default serial.h for uart drivers needing BASE_BAUD\n ARC: [plat-arcfpga] defconfig for fully loaded ARC Linux\n ARC: [Review] Multi-platform image #8: platform registers SMP callbacks\n ARC: [Review] Multi-platform image #7: SMP common code to use callbacks\n ARC: [Review] Multi-platform image #6: cpu-to-dma-addr optional\n ARC: [Review] Multi-platform image #5: NR_IRQS defined by ARC core\n ARC: [Review] Multi-platform image #4: Isolate platform headers\n ARC: [Review] Multi-platform image #3: switch to board callback\n ...\n" }, { "commit": "94f2f14234178f118545a0be60a6371ddeb229b7", "tree": "313af6e9e255e9060fc24c836cd71ce712502b17", "parents": [ "8d168f71551ec2a6528d01d0389b7a73c091e3e7", "139321c65c0584cd65c4c87a5eb3fdb4fdbd0e19" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Feb 25 16:00:49 2013 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Feb 25 16:00:49 2013 -0800" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace\n\nPull user namespace and namespace infrastructure changes from Eric W Biederman:\n \"This set of changes starts with a few small enhnacements to the user\n namespace. reboot support, allowing more arbitrary mappings, and\n support for mounting devpts, ramfs, tmpfs, and mqueuefs as just the\n user namespace root.\n\n I do my best to document that if you care about limiting your\n unprivileged users that when you have the user namespace support\n enabled you will need to enable memory control groups.\n\n There is a minor bug fix to prevent overflowing the stack if someone\n creates way too many user namespaces.\n\n The bulk of the changes are a continuation of the kuid/kgid push down\n work through the filesystems. These changes make using uids and gids\n typesafe which ensures that these filesystems are safe to use when\n multiple user namespaces are in use. The filesystems converted for\n 3.9 are ceph, 9p, afs, ocfs2, gfs2, ncpfs, nfs, nfsd, and cifs. The\n changes for these filesystems were a little more involved so I split\n the changes into smaller hopefully obviously correct changes.\n\n XFS is the only filesystem that remains. I was hoping I could get\n that in this release so that user namespace support would be enabled\n with an allyesconfig or an allmodconfig but it looks like the xfs\n changes need another couple of days before it they are ready.\"\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (93 commits)\n cifs: Enable building with user namespaces enabled.\n cifs: Convert struct cifs_ses to use a kuid_t and a kgid_t\n cifs: Convert struct cifs_sb_info to use kuids and kgids\n cifs: Modify struct smb_vol to use kuids and kgids\n cifs: Convert struct cifsFileInfo to use a kuid\n cifs: Convert struct cifs_fattr to use kuid and kgids\n cifs: Convert struct tcon_link to use a kuid.\n cifs: Modify struct cifs_unix_set_info_args to hold a kuid_t and a kgid_t\n cifs: Convert from a kuid before printing current_fsuid\n cifs: Use kuids and kgids SID to uid/gid mapping\n cifs: Pass GLOBAL_ROOT_UID and GLOBAL_ROOT_GID to keyring_alloc\n cifs: Use BUILD_BUG_ON to validate uids and gids are the same size\n cifs: Override unmappable incoming uids and gids\n nfsd: Enable building with user namespaces enabled.\n nfsd: Properly compare and initialize kuids and kgids\n nfsd: Store ex_anon_uid and ex_anon_gid as kuids and kgids\n nfsd: Modify nfsd4_cb_sec to use kuids and kgids\n nfsd: Handle kuids and kgids in the nfs4acl to posix_acl conversion\n nfsd: Convert nfsxdr to use kuids and kgids\n nfsd: Convert nfs3xdr to use kuids and kgids\n ...\n" }, { "commit": "9043a2650cd21f96f831a97f516c2c302e21fb70", "tree": "926720afb0acc7bad8cfcae537dc58de552f9249", "parents": [ "ab7826595e9ec51a51f622c5fc91e2f59440481a", "d9d8d7ed498ec65bea72dd24be7b9cd35af0c200" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Feb 25 15:41:43 2013 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Feb 25 15:41:43 2013 -0800" }, "message": "Merge tag \u0027modules-next-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux\n\nPull module update from Rusty Russell:\n \"The sweeping change is to make add_taint() explicitly indicate whether\n to disable lockdep, but it\u0027s a mechanical change.\"\n\n* tag \u0027modules-next-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:\n MODSIGN: Add option to not sign modules during modules_install\n MODSIGN: Add -s \u003csignature\u003e option to sign-file\n MODSIGN: Specify the hash algorithm on sign-file command line\n MODSIGN: Simplify Makefile with a Kconfig helper\n module: clean up load_module a little more.\n modpost: Ignore ARC specific non-alloc sections\n module: constify within_module_*\n taint: add explicit flag to show whether lock dep is still OK.\n module: printk message when module signature fail taints kernel.\n" }, { "commit": "27ea6dfdc23e5e96e324d6cb3488528c14e4a7f7", "tree": "f3a77ed29e1cecd1f401b86384b322f1b005ef0b", "parents": [ "81ec44a6c69342fec1b1140c60a604027e429f69", "cc883afcc02e1c9c8ab64d20f0288355b857f966" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Feb 21 17:55:48 2013 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Feb 21 17:55:48 2013 -0800" }, "message": "Merge tag \u0027please-pull-misc-3.9\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux\n\nPull misc ia64 bits from Tony Luck.\n\n* tag \u0027please-pull-misc-3.9\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:\n MAINTAINERS: update SGI \u0026 ia64 Altix stuff\n sysctl: Enable IA64 \"ignore-unaligned-usertrap\" to be used cross-arch\n" }, { "commit": "06991c28f37ad68e5c03777f5c3b679b56e3dac1", "tree": "4be75788e21c3c644fe6d39abf47693a171cf4f8", "parents": [ "460dc1eecf37263c8e3b17685ef236f0d236facb", "74fef7a8fd1d2bd94f925d6638bb4c3049e7c381" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Feb 21 12:05:51 2013 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Feb 21 12:05:51 2013 -0800" }, "message": "Merge tag \u0027driver-core-3.9-rc1\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core\n\nPull driver core patches from Greg Kroah-Hartman:\n \"Here is the big driver core merge for 3.9-rc1\n\n There are two major series here, both of which touch lots of drivers\n all over the kernel, and will cause you some merge conflicts:\n\n - add a new function called devm_ioremap_resource() to properly be\n able to check return values.\n\n - remove CONFIG_EXPERIMENTAL\n\n Other than those patches, there\u0027s not much here, some minor fixes and\n updates\"\n\nFix up trivial conflicts\n\n* tag \u0027driver-core-3.9-rc1\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (221 commits)\n base: memory: fix soft/hard_offline_page permissions\n drivercore: Fix ordering between deferred_probe and exiting initcalls\n backlight: fix class_find_device() arguments\n TTY: mark tty_get_device call with the proper const values\n driver-core: constify data for class_find_device()\n firmware: Ignore abort check when no user-helper is used\n firmware: Reduce ifdef CONFIG_FW_LOADER_USER_HELPER\n firmware: Make user-mode helper optional\n firmware: Refactoring for splitting user-mode helper code\n Driver core: treat unregistered bus_types as having no devices\n watchdog: Convert to devm_ioremap_resource()\n thermal: Convert to devm_ioremap_resource()\n spi: Convert to devm_ioremap_resource()\n power: Convert to devm_ioremap_resource()\n mtd: Convert to devm_ioremap_resource()\n mmc: Convert to devm_ioremap_resource()\n mfd: Convert to devm_ioremap_resource()\n media: Convert to devm_ioremap_resource()\n iommu: Convert to devm_ioremap_resource()\n drm: Convert to devm_ioremap_resource()\n ...\n" }, { "commit": "ece8e0b2f9c980e5511fe8db2d68c6f1859b9d83", "tree": "70f1e3363080884965686576d079d24da8863a58", "parents": [ "67cb104b4c30bd52292b6a7f526349aab2dd5cbd", "a0327ff0eda915be623658babacef706099c11a8" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Feb 19 22:10:26 2013 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Feb 19 22:10:26 2013 -0800" }, "message": "Merge branch \u0027for-3.9-async\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq\n\nPull async changes from Tejun Heo:\n \"These are followups for the earlier deadlock issue involving async\n ending up waiting for itself through block requesting module[1]. The\n following changes are made by these commits.\n\n - Instead of requesting default elevator on each request_queue init,\n block now requests it once early during boot.\n\n - Kmod triggers warning if invoked from an async worker.\n\n - Async synchronization implementation has been reimplemented. It\u0027s\n a lot simpler now.\"\n\n* \u0027for-3.9-async\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:\n async: initialise list heads to fix crash\n async: replace list of active domains with global list of pending items\n async: keep pending tasks on async_domain and remove async_pending\n async: use ULLONG_MAX for infinity cookie value\n async: bring sanity to the use of words domain and running\n async, kmod: warn on synchronous request_module() from async workers\n block: don\u0027t request module during elevator init\n init, block: try to load default elevator module early during boot\n" }, { "commit": "d652e1eb8e7b739fccbfb503a3da3e9f640fbf3d", "tree": "55ab77bad0cbb045eac0b84b80d63f88f1ae09e6", "parents": [ "8f55cea410dbc56114bb71a3742032070c8108d0", "77852fea6e2442a0e654a9292060489895de18c7" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Feb 19 18:19:48 2013 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Feb 19 18:19:48 2013 -0800" }, "message": "Merge branch \u0027sched-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull scheduler changes from Ingo Molnar:\n \"Main changes:\n\n - scheduler side full-dynticks (user-space execution is undisturbed\n and receives no timer IRQs) preparation changes that convert the\n cputime accounting code to be full-dynticks ready, from Frederic\n Weisbecker.\n\n - Initial sched.h split-up changes, by Clark Williams\n\n - select_idle_sibling() performance improvement by Mike Galbraith:\n\n \" 1 tbench pair (worst case) in a 10 core + SMT package:\n\n pre 15.22 MB/sec 1 procs\n post 252.01 MB/sec 1 procs \"\n\n - sched_rr_get_interval() ABI fix/change. We think this detail is not\n used by apps (so it\u0027s not an ABI in practice), but lets keep it\n under observation.\n\n - misc RT scheduling cleanups, optimizations\"\n\n* \u0027sched-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)\n sched/rt: Add \u003clinux/sched/rt.h\u003e header to \u003clinux/init_task.h\u003e\n cputime: Remove irqsave from seqlock readers\n sched, powerpc: Fix sched.h split-up build failure\n cputime: Restore CPU_ACCOUNTING config defaults for PPC64\n sched/rt: Move rt specific bits into new header file\n sched/rt: Add a tuning knob to allow changing SCHED_RR timeslice\n sched: Move sched.h sysctl bits into separate header\n sched: Fix signedness bug in yield_to()\n sched: Fix select_idle_sibling() bouncing cow syndrome\n sched/rt: Further simplify pick_rt_task()\n sched/rt: Do not account zero delta_exec in update_curr_rt()\n cputime: Safely read cputime of full dynticks CPUs\n kvm: Prepare to add generic guest entry/exit callbacks\n cputime: Use accessors to read task cputime stats\n cputime: Allow dynamic switch between tick/virtual based cputime accounting\n cputime: Generic on-demand virtual cputime accounting\n cputime: Move default nsecs_to_cputime() to jiffies based cputime file\n cputime: Librarize per nsecs resolution cputime definitions\n cputime: Avoid multiplication overflow on utime scaling\n context_tracking: Export context state for generic vtime\n ...\n\nFix up conflict in kernel/context_tracking.c due to comment additions.\n" }, { "commit": "b7133a9a103655cda254987a3c0975fd9d8c443f", "tree": "85422ad8c32f1782a2ed3b87b7264b1b3953c105", "parents": [ "e84cf5d0fd53badf3a93c790e280cc92a69ed999", "36a5df85e9a3c218b73f6cf80098016ca3f0410d" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Feb 19 17:47:58 2013 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Feb 19 17:47:58 2013 -0800" }, "message": "Merge branch \u0027irq-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull irq core changes from Ingo Molnar:\n \"The biggest changes are the IRQ-work and printk changes from Frederic\n Weisbecker, which prepare the code for \u0027full dynticks\u0027 (the ability to\n stop or slow down the periodic tick arbitrarily, not just in idle time\n as today):\n\n - Don\u0027t stop tick with irq works pending. This fix is generally\n useful and concerns archs that can\u0027t raise self IPIs.\n\n - Flush irq works before CPU offlining.\n\n - Introduce \"lazy\" irq works that can wait for the next tick to be\n executed, unless it\u0027s stopped.\n\n - Implement klogd wake up using irq work. This removes the ad-hoc\n printk_tick()/printk_needs_cpu() hooks and make it working even in\n dynticks mode.\n\n - Cleanups and fixes.\"\n\n* \u0027irq-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n genirq: Export enable/disable_percpu_irq()\n arch Kconfig: Remove references to IRQ_PER_CPU\n irq_work: Remove return value from the irq_work_queue() function\n genirq: Avoid deadlock in spurious handling\n printk: Wake up klogd using irq_work\n irq_work: Make self-IPIs optable\n irq_work: Warn if there\u0027s still work on cpu_down\n irq_work: Flush work on CPU_DYING\n irq_work: Don\u0027t stop the tick with pending works\n nohz: Add API to check tick state\n irq_work: Remove CONFIG_HAVE_IRQ_WORK\n irq_work: Fix racy check on work pending flag\n irq_work: Fix racy IRQ_WORK_BUSY flag setting\n" }, { "commit": "bf14e3b979a01cd7298d631736f965fe83c6e2bc", "tree": "8440a0641556332763615edc881f81d1da6f2d37", "parents": [ "4d86dfbbda09b3c67bcaeb370f22a2cc7f39205b" ], "author": { "name": "Vineet Gupta", "email": "vgupta@synopsys.com", "time": "Fri Jan 18 15:12:24 2013 +0530" }, "committer": { "name": "Vineet Gupta", "email": "vgupta@synopsys.com", "time": "Fri Feb 15 23:16:05 2013 +0530" }, "message": "sysctl: Enable PARISC \"unaligned-trap\" to be used cross-arch\n\nPARISC defines /proc/sys/kernel/unaligned-trap to runtime toggle\nunaligned access emulation.\n\nThe exact mechanics of enablig/disabling are still arch specific, we can\nmake the sysctl usable by other arches.\n\nSigned-off-by: Vineet Gupta \u003cvgupta@synopsys.com\u003e\nAcked-by: Helge Deller \u003cdeller@gmx.de\u003e\nCc: \"James E.J. Bottomley\" \u003cjejb@parisc-linux.org\u003e\nCc: Helge Deller \u003cdeller@gmx.de\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Serge Hallyn \u003cserge.hallyn@canonical.com\u003e\n" }, { "commit": "139321c65c0584cd65c4c87a5eb3fdb4fdbd0e19", "tree": "04d8054cff62878be2ecbd2092d7e61c4da8fec4", "parents": [ "64ed39dd1ef284c0338799a6167b77a6d6e01982" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Wed Feb 06 02:31:39 2013 -0800" }, "committer": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Wed Feb 13 07:28:56 2013 -0800" }, "message": "cifs: Enable building with user namespaces enabled.\n\nCc: Steve French \u003csmfrench@gmail.com\u003e\nSigned-off-by: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\n" }, { "commit": "c9617a44b39d75b2098283d56355d02d4d5bee8b", "tree": "9d09745ccef79632c6915b57e216082bb3c3a470", "parents": [ "6fab877900030ba3ae11928efb6087589f1e514c" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Sat Feb 02 07:00:40 2013 -0800" }, "committer": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Wed Feb 13 06:16:10 2013 -0800" }, "message": "nfsd: Enable building with user namespaces enabled.\n\nNow that the kuids and kgids conversion have propogated\nthrough net/sunrpc/ and the fs/nfsd/ it is safe to enable\nbuilding nfsd when user namespaces are enabled.\n\nCc: \"J. Bruce Fields\" \u003cbfields@fieldses.org\u003e\nCc: Trond Myklebust \u003cTrond.Myklebust@netapp.com\u003e\nSigned-off-by: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\n" }, { "commit": "4277bbf750d95a4c86925fa8f8956568b4912d43", "tree": "e51e773d41895be0b51a1834424e54dfeecd1d7b", "parents": [ "9ff593c4739c76c31ffdf7f2a1d67489ece728e6" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Sat Feb 02 06:59:11 2013 -0800" }, "committer": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Wed Feb 13 06:15:34 2013 -0800" }, "message": "nfs: Enable building with user namespaces enabled.\n\nNow that the kuids and kgids conversion have propogated\nthrough net/sunrpc/ and the fs/nfs/ it is safe to enable\nbuilding nfs when user namespaces are enabled.\n\nCc: \"J. Bruce Fields\" \u003cbfields@fieldses.org\u003e\nCc: Trond Myklebust \u003cTrond.Myklebust@netapp.com\u003e\nSigned-off-by: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\n" }, { "commit": "1ac7fd8190b79c822631ed537186fb8b2d9e9b74", "tree": "de88733bf16f6ed670e0de354dded191ae844717", "parents": [ "0f07bd3753e25c80fe24428273c791f350b3a1eb" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Tue Feb 07 16:28:28 2012 -0800" }, "committer": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Wed Feb 13 06:15:13 2013 -0800" }, "message": "ncpfs: Support interacting with multiple user namespaces\n\nncpfs does not natively support uids and gids so this conversion was\nsimply a matter of updating the the type of the mounteduid, the uid\nand the gid on the superblock. Fixing the ioctls that read them,\nupdating the mount option parser and the mount option printer.\n\nCc: Petr Vandrovec \u003cpetr@vandrovec.name\u003e\nAcked-by: Serge Hallyn \u003cserge.hallyn@canonical.com\u003e\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\n" }, { "commit": "0f07bd3753e25c80fe24428273c791f350b3a1eb", "tree": "7df09998d2dcc3bb425e4b89e1279b0d786dcde8", "parents": [ "d0546426426ca96f0b815581c0a9ed0db28319b6" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Thu Jan 31 22:17:00 2013 -0800" }, "committer": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Wed Feb 13 06:15:12 2013 -0800" }, "message": "gfs2: Enable building with user namespaces enabled\n\nNow that all of the necessary work has been done to push kuids and\nkgids throughout gfs2 and to convert between kuids and kgids when\nreading and writing the on disk structures it is safe to enable gfs2\nwhen multiple user namespaces are enabled.\n\nCc: Steven Whitehouse \u003cswhiteho@redhat.com\u003e\nSigned-off-by: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\n" }, { "commit": "ecb528e3ea208750693731538411f86f78a4d965", "tree": "87f2780c10f1c9f899ae1aff15926c8ac5516a13", "parents": [ "488c8ef033c6409cd8d23bcd04eed2f56301836d" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Thu Jan 31 17:36:56 2013 -0800" }, "committer": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Wed Feb 13 06:14:32 2013 -0800" }, "message": "ocfs2: Enable building with user namespaces enabled\n\nNow that ocfs2 has been converted to store uids and gids in\nkuid_t and kgid_t and all of the conversions have been added\nto the appropriate places it is safe to allow building and\nusing ocfs2 with user namespace support enabled.\n\nCc: Mark Fasheh \u003cmfasheh@suse.com\u003e\nCc: Joel Becker \u003cjlbec@evilplan.org\u003e\nSigned-off-by: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\n" }, { "commit": "515ee7bd9758208dea081dbc933400d6be81028a", "tree": "63aa78730b192b0266889a59093c9d0f42c5a6ca", "parents": [ "17499e332962e495b3ee2e5507e09b853ed6f607" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Wed Jan 30 19:43:05 2013 -0800" }, "committer": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Wed Feb 13 06:00:55 2013 -0800" }, "message": "coda: Allow coda to be built when user namespace support is enabled\n\nNow that the coda kernel to userspace has been modified to convert\nbetween kuids and kgids and uids and gids, and all internal\ncoda structures have be modified to store uids and gids as\nkuids and kgids it is safe to allow code to be built with\nuser namespace support enabled.\n\nCc: Jan Harkes \u003cjaharkes@cs.cmu.edu\u003e\nSigned-off-by: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\n" }, { "commit": "a0a5386ac6400493cc2eb8b58583e56af0708730", "tree": "2c46bb450629c4ee3296857ae20d77d902554500", "parents": [ "f74f70f8b10b435f5f20247e70d1d86b53a59685" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Tue Feb 07 16:20:48 2012 -0800" }, "committer": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Wed Feb 13 06:00:51 2013 -0800" }, "message": "afs: Support interacting with multiple user namespaces\n\nModify struct afs_file_status to store owner as a kuid_t and group as\na kgid_t.\n\nIn xdr_decode_AFSFetchStatus as owner is now a kuid_t and group is now\na kgid_t don\u0027t use the EXTRACT macro. Instead perform the work of\nthe extract macro explicitly. Read the value with ntohl and\nconvert it to the appropriate type with make_kuid or make_kgid.\nTest if the value is different from what is stored in status and\nupdate changed. Update the value in status.\n\nIn xdr_encode_AFS_StoreStatus call from_kuid or from_kgid as\nwe are computing the on the wire encoding.\n\nInitialize uids with GLOBAL_ROOT_UID instead of 0.\nInitialize gids with GLOBAL_ROOT_GID instead of 0.\n\nCc: David Howells \u003cdhowells@redhat.com\u003e\nAcked-by: Serge Hallyn \u003cserge.hallyn@canonical.com\u003e\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\n" }, { "commit": "4fa814be258169caef51e320b8b06cb3b139d4a0", "tree": "b0042ff15b4b51479300c573c81331dbf7bf2d8d", "parents": [ "d4ef4e3581044890e4a04607a4e8f42d3ebcf704" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Wed Jan 30 12:11:45 2013 -0800" }, "committer": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Tue Feb 12 03:19:35 2013 -0800" }, "message": "9p: Allow building 9p with user namespaces enabled.\n\nNow that the uid_t -\u003e kuid_t, gid_t -\u003e kgid_t conversion\nhas been completed in 9p allow 9p to be built when user\nnamespaces are enabled.\n\nCc: Eric Van Hensbergen \u003cericvh@gmail.com\u003e\nCc: Ron Minnich \u003crminnich@gmail.com\u003e\nCc: Latchesar Ionkov \u003clucho@ionkov.net\u003e\nSigned-off-by: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\n" }, { "commit": "d5ea055f1cc0ff6d4170c7f60f3cb5eb09d927bc", "tree": "43b80157211479e386a69b78f452c10a755e2a3a", "parents": [ "bd2bae6a66df9261a39e47291b0a6b00cd0831e0" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Thu Jan 31 04:07:20 2013 -0800" }, "committer": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Tue Feb 12 03:19:28 2013 -0800" }, "message": "ceph: Enable building when user namespaces are enabled.\n\nNow that conversions happen from kuids and kgids when generating ceph\nmessages and conversion happen to kuids and kgids after receiving\ncelph messages, and all intermediate data structures store uids and\ngids as type kuid_t and kgid_t it is safe to enable ceph with\nuser namespace support enabled.\n\nCc: Sage Weil \u003csage@inktank.com\u003e\nSigned-off-by: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\n" }, { "commit": "02fc8d37229d15c654876cf9ce56b5c1cf7945d7", "tree": "9da38726f8de705984b143fe3ba693a2ad13f913", "parents": [ "8bd75c77b7c6a3954140dd2e20346aef3efe4a35" ], "author": { "name": "Stephen Rothwell", "email": "sfr@canb.auug.org.au", "time": "Fri Feb 08 14:19:38 2013 +1100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Fri Feb 08 15:23:12 2013 +0100" }, "message": "cputime: Restore CPU_ACCOUNTING config defaults for PPC64\n\nCommit abf917cd91cb (\"cputime: Generic on-demand virtual cputime\naccounting\") inadvertantly changed the default CPU_ACCOUNTING\nconfig for PPC64. Repair that.\n\nSigned-off-by: Stephen Rothwell \u003csfr@canb.auug.org.au\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Li Zhong \u003czhong@linux.vnet.ibm.com\u003e\nCc: Namhyung Kim \u003cnamhyung.kim@lge.com\u003e\nCc: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nCc: Paul Gortmaker \u003cpaul.gortmaker@windriver.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: ppc-dev \u003clinuxppc-dev@lists.ozlabs.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nLink: http://lkml.kernel.org/r/20130208141938.f31b7b9e1acac5bbe769ee4c@canb.auug.org.au\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "8bd75c77b7c6a3954140dd2e20346aef3efe4a35", "tree": "10e0d451a58aeb6c8f48b871a848276bf3a8a359", "parents": [ "ce0dbbbb30aee6a835511d5be446462388ba9eee" ], "author": { "name": "Clark Williams", "email": "williams@redhat.com", "time": "Thu Feb 07 09:47:07 2013 -0600" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Thu Feb 07 20:51:08 2013 +0100" }, "message": "sched/rt: Move rt specific bits into new header file\n\nMove rt scheduler definitions out of include/linux/sched.h into\nnew file include/linux/sched/rt.h\n\nSigned-off-by: Clark Williams \u003cwilliams@redhat.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLink: http://lkml.kernel.org/r/20130207094707.7b9f825f@riff.lan\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "cf4aebc292fac7f34f8345664320e9d4a42ca76c", "tree": "6eceb9bb2d8382c4499366a8fee060688aad6107", "parents": [ "b2c77a57e4a0a7877e357dead7ee8acc19944f3e" ], "author": { "name": "Clark Williams", "email": "williams@redhat.com", "time": "Thu Feb 07 09:46:59 2013 -0600" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Thu Feb 07 20:50:54 2013 +0100" }, "message": "sched: Move sched.h sysctl bits into separate header\n\nMove the sysctl-related bits from include/linux/sched.h into\na new file: include/linux/sched/sysctl.h. Then update source\nfiles requiring access to those bits by including the new\nheader file.\n\nSigned-off-by: Clark Williams \u003cwilliams@redhat.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLink: http://lkml.kernel.org/r/20130207094659.06dced96@riff.lan\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "9f3b795a626ee79574595e06d1437fe0c7d51d29", "tree": "1952cb2ac880c0e66f291916815c2a36b4ceb300", "parents": [ "807be03cae191cb88e2f267adcd49aba785c658b" ], "author": { "name": "Michał Mirosław", "email": "mirq-linux@rere.qmqm.pl", "time": "Fri Feb 01 20:40:17 2013 +0100" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@linuxfoundation.org", "time": "Wed Feb 06 12:18:56 2013 -0800" }, "message": "driver-core: constify data for class_find_device()\n\nAll in-kernel users of class_find_device() don\u0027t really need mutable\ndata for match callback.\n\nIn two places (kernel/power/suspend_test.c, drivers/scsi/osd/osd_uld.c)\nthis patch changes match callbacks to use const search data.\n\nThe const is propagated to rtc_class_open() and power_supply_get_by_name()\nparameters.\n\nNote that there\u0027s a dev reference leak in suspend_test.c that\u0027s not\ntouched in this patch.\n\nSigned-off-by: Michał Mirosław \u003cmirq-linux@rere.qmqm.pl\u003e\nAcked-by: Grant Likely \u003cgrant.likely@secretlab.ca\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@linuxfoundation.org\u003e\n" }, { "commit": "b2c77a57e4a0a7877e357dead7ee8acc19944f3e", "tree": "fa192b5a058711299c2a8ce2621df6c9bd8f3a99", "parents": [ "c3c186403c6abd32e719f005f0af950155a9e54d", "6a61671bb2f3a1bd12cd17b8fca811a624782632" ], "author": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Tue Feb 05 13:10:33 2013 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Tue Feb 05 13:10:33 2013 +0100" }, "message": "Merge tag \u0027full-dynticks-cputime-for-mingo\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks into sched/core\n\nPull full-dynticks (user-space execution is undisturbed and\nreceives no timer IRQs) preparation changes that convert the\ncputime accounting code to be full-dynticks ready,\nfrom Frederic Weisbecker:\n\n \"This implements the cputime accounting on full dynticks CPUs.\n\n Typical cputime stats infrastructure relies on the timer tick and\n its periodic polling on the CPU to account the amount of time\n spent by the CPUs and the tasks per high level domains such as\n userspace, kernelspace, guest, ...\n\n Now we are preparing to implement full dynticks capability on\n Linux for Real Time and HPC users who want full CPU isolation.\n This feature requires a cputime accounting that doesn\u0027t depend\n on the timer tick.\n\n To implement it, this new cputime infrastructure plugs into\n kernel/user/guest boundaries to take snapshots of cputime and\n flush these to the stats when needed. This performs pretty\n much like CONFIG_VIRT_CPU_ACCOUNTING except that context location\n and cputime snaphots are synchronized between write and read\n side such that the latter can safely retrieve the pending tickless\n cputime of a task and add it to its latest cputime snapshot to\n return the correct result to the user.\"\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "077931446b85e7858bf9dc0927cd116669b965d2", "tree": "02fbdf4a42b30b841a61aca399bd0ac6a5c308e6", "parents": [ "f7c819c020db9796ae3a662b82a310617f92b15b", "74876a98a87a115254b3a66a14b27320b7f0acaa" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Feb 05 00:48:46 2013 +0100" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Feb 05 00:48:46 2013 +0100" }, "message": "Merge branch \u0027nohz/printk-v8\u0027 into irq/core\n\nConflicts:\n\tkernel/irq_work.c\n\nAdd support for printk in full dynticks CPU.\n\n* Don\u0027t stop tick with irq works pending. This\nfix is generally useful and concerns archs that\ncan\u0027t raise self IPIs.\n\n* Flush irq works before CPU offlining.\n\n* Introduce \"lazy\" irq works that can wait for the\nnext tick to be executed, unless it\u0027s stopped.\n\n* Implement klogd wake up using irq work. This\nremoves the ad-hoc printk_tick()/printk_needs_cpu()\nhooks and make it working even in dynticks mode.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "9228b5f24325a3863a4819300b471278ff14b48f", "tree": "7108d5a0e1d0a717d80a7f77e45d29255321b2e6", "parents": [ "88b62b915b0b7e25870eb0604ed9a92ba4bfc9f7", "40393f525fe698e2b639cf1851ef0a40e7e158a8" ], "author": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Mon Feb 04 19:06:34 2013 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Mon Feb 04 19:06:34 2013 +0100" }, "message": "Merge branch \u0027rcu/next\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu\n\nPull RCU updates from Paul E. McKenney:\n\n1.\tChanges to rcutorture and to RCU documentation. Posted to LKML at\n https://lkml.org/lkml/2013/1/26/188.\n\n2.\tEnhancements to uniprocessor handling in tiny RCU. Posted to LKML\n at https://lkml.org/lkml/2013/1/27/2.\n\n3.\tTag RCU callbacks with grace-period number to simplify callback\n advancement. Posted to LKML at https://lkml.org/lkml/2013/1/26/203.\n\n4.\tMiscellaneous fixes. Posted to LKML at https://lkml.org/lkml/2013/1/26/204.\n\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "bdb0ae6a767ef2622eb282e06fc225e855341653", "tree": "34441e77a137fa349c48472bce2e12efceb18b21", "parents": [ "0fe94b9e56da7ebffad4422415bdc2854934a389", "e0094244e41c4d0c7ad69920681972fc45d8ce34" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jan 31 17:08:43 2013 +1100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jan 31 17:08:43 2013 +1100" }, "message": "Merge branch \u0027x86-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull x86 fixes from Peter Anvin:\n \"This is a collection of miscellaneous fixes, the most important one is\n the fix for the Samsung laptop bricking issue (auto-blacklisting the\n samsung-laptop driver); the efi_enabled() changes you see below are\n prerequisites for that fix.\n\n The other issues fixed are booting on OLPC XO-1.5, an UV fix, NMI\n debugging, and requiring CAP_SYS_RAWIO for MSR references, just as\n with I/O port references.\"\n\n* \u0027x86-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n samsung-laptop: Disable on EFI hardware\n efi: Make \u0027efi_enabled\u0027 a function to query EFI facilities\n smp: Fix SMP function call empty cpu mask race\n x86/msr: Add capabilities check\n x86/dma-debug: Bump PREALLOC_DMA_DEBUG_ENTRIES\n x86/olpc: Fix olpc-xo1-sci.c build errors\n arch/x86/platform/uv: Fix incorrect tlb flush all issue\n x86-64: Fix unwind annotations in recent NMI changes\n x86-32: Start out cr0 clean, disable paging before modifying cr3/4\n" }, { "commit": "83e68189745ad931c2afd45d8ee3303929233e7f", "tree": "35673a4eebff4c71bda4b1023ccc7cbea36f84b2", "parents": [ "f44310b98ddb7f0d06550d73ed67df5865e3eda5" ], "author": { "name": "Matt Fleming", "email": "matt.fleming@intel.com", "time": "Wed Nov 14 09:42:35 2012 +0000" }, "committer": { "name": "H. Peter Anvin", "email": "hpa@linux.intel.com", "time": "Wed Jan 30 11:51:59 2013 -0800" }, "message": "efi: Make \u0027efi_enabled\u0027 a function to query EFI facilities\n\nOriginally \u0027efi_enabled\u0027 indicated whether a kernel was booted from\nEFI firmware. Over time its semantics have changed, and it now\nindicates whether or not we are booted on an EFI machine with\nbit-native firmware, e.g. 64-bit kernel with 64-bit firmware.\n\nThe immediate motivation for this patch is the bug report at,\n\n https://bugs.launchpad.net/ubuntu-cdimage/+bug/1040557\n\nwhich details how running a platform driver on an EFI machine that is\ndesigned to run under BIOS can cause the machine to become\nbricked. Also, the following report,\n\n https://bugzilla.kernel.org/show_bug.cgi?id\u003d47121\n\ndetails how running said driver can also cause Machine Check\nExceptions. Drivers need a new means of detecting whether they\u0027re\nrunning on an EFI machine, as sadly the expression,\n\n if (!efi_enabled)\n\nhasn\u0027t been a sufficient condition for quite some time.\n\nUsers actually want to query \u0027efi_enabled\u0027 for different reasons -\nwhat they really want access to is the list of available EFI\nfacilities.\n\nFor instance, the x86 reboot code needs to know whether it can invoke\nthe ResetSystem() function provided by the EFI runtime services, while\nthe ACPI OSL code wants to know whether the EFI config tables were\nmapped successfully. There are also checks in some of the platform\ndriver code to simply see if they\u0027re running on an EFI machine (which\nwould make it a bad idea to do BIOS-y things).\n\nThis patch is a prereq for the samsung-laptop fix patch.\n\nCc: David Airlie \u003cairlied@linux.ie\u003e\nCc: Corentin Chary \u003ccorentincj@iksaif.net\u003e\nCc: Matthew Garrett \u003cmjg59@srcf.ucam.org\u003e\nCc: Dave Jiang \u003cdave.jiang@intel.com\u003e\nCc: Olof Johansson \u003colof@lixom.net\u003e\nCc: Peter Jones \u003cpjones@redhat.com\u003e\nCc: Colin Ian King \u003ccolin.king@canonical.com\u003e\nCc: Steve Langasek \u003csteve.langasek@canonical.com\u003e\nCc: Tony Luck \u003ctony.luck@intel.com\u003e\nCc: Konrad Rzeszutek Wilk \u003ckonrad@kernel.org\u003e\nCc: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nCc: \u003cstable@vger.kernel.org\u003e\nSigned-off-by: Matt Fleming \u003cmatt.fleming@intel.com\u003e\nSigned-off-by: H. Peter Anvin \u003chpa@linux.intel.com\u003e\n" }, { "commit": "9fc52d832b5e7f6e175f3b20ae94504b780b9fd3", "tree": "ce618667492e0d87b496dad1f605674bbb6a5bc4", "parents": [ "6bfc09e2327dfbffc312004c16188dbf8dfb0297" ], "author": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Tue Jan 08 15:48:33 2013 -0800" }, "committer": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Mon Jan 28 22:06:22 2013 -0800" }, "message": "rcu: Allow TREE_PREEMPT_RCU on UP systems\n\nThe TINY_PREEMPT_RCU is complex, does not provide that much memory\nsavings, and therefore TREE_PREEMPT_RCU should be used instead. The\nsystems where the difference between TINY_PREEMPT_RCU and TREE_PREEMPT_RCU\nare quite small compared to the memory footprint of CONFIG_PREEMPT.\n\nThis commit therefore takes a first step towards eliminating\nTINY_PREEMPT_RCU by allowing TREE_PREEMPT_RCU to be configured on !SMP\nsystems.\n\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nReviewed-by: Josh Triplett \u003cjosh@joshtriplett.org\u003e\n" }, { "commit": "6bfc09e2327dfbffc312004c16188dbf8dfb0297", "tree": "f36ac34ec671ea5eaa926ebabba8486bbda9c175", "parents": [ "1b0048a44c502c5ab850203e6e0a6498d7d8676d" ], "author": { "name": "Paul E. McKenney", "email": "paul.mckenney@linaro.org", "time": "Fri Oct 19 12:49:17 2012 -0700" }, "committer": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Mon Jan 28 22:06:21 2013 -0800" }, "message": "rcu: Provide RCU CPU stall warnings for tiny RCU\n\nTiny RCU has historically omitted RCU CPU stall warnings in order to\nreduce memory requirements, however, lack of these warnings caused\nThomas Gleixner some debugging pain recently. Therefore, this commit\nadds RCU CPU stall warnings to tiny RCU if RCU_TRACE\u003dy. This keeps\nthe memory footprint small, while still enabling CPU stall warnings\nin kernels built to enable them.\n\nUpdated to include Josh Triplett\u0027s suggested use of RCU_STALL_COMMON\nconfig variable to simplify #if expressions.\n\nReported-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Paul E. McKenney \u003cpaul.mckenney@linaro.org\u003e\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nReviewed-by: Josh Triplett \u003cjosh@joshtriplett.org\u003e\n" }, { "commit": "abf917cd91cbb73952758f9741e2fa65002a48ee", "tree": "5f975b87615dcaed9c98bc74b4548d568b92dcbc", "parents": [ "ae8dda5c473bf1a85913942adcaac449e5754bf3" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Jul 25 07:56:04 2012 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sun Jan 27 19:23:27 2013 +0100" }, "message": "cputime: Generic on-demand virtual cputime accounting\n\nIf we want to stop the tick further idle, we need to be\nable to account the cputime without using the tick.\n\nVirtual based cputime accounting solves that problem by\nhooking into kernel/user boundaries.\n\nHowever implementing CONFIG_VIRT_CPU_ACCOUNTING require\nlow level hooks and involves more overhead. But we already\nhave a generic context tracking subsystem that is required\nfor RCU needs by archs which plan to shut down the tick\noutside idle.\n\nThis patch implements a generic virtual based cputime\naccounting that relies on these generic kernel/user hooks.\n\nThere are some upsides of doing this:\n\n- This requires no arch code to implement CONFIG_VIRT_CPU_ACCOUNTING\nif context tracking is already built (already necessary for RCU in full\ntickless mode).\n\n- We can rely on the generic context tracking subsystem to dynamically\n(de)activate the hooks, so that we can switch anytime between virtual\nand tick based accounting. This way we don\u0027t have the overhead\nof the virtual accounting when the tick is running periodically.\n\nAnd one downside:\n\n- There is probably more overhead than a native virtual based cputime\naccounting. But this relies on hooks that are already set anyway.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: Ingo Molnar \u003cmingo@kernel.org\u003e\nCc: Li Zhong \u003czhong@linux.vnet.ibm.com\u003e\nCc: Namhyung Kim \u003cnamhyung.kim@lge.com\u003e\nCc: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nCc: Paul Gortmaker \u003cpaul.gortmaker@windriver.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "e11f0ae388f227d7ad03953e19034dec55286650", "tree": "10caa137fd9c8db3473f297ab43a8ae591235043", "parents": [ "0bd14b4fd72afd5df41e9fd59f356740f22fceba" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Fri Jan 25 16:48:31 2013 -0800" }, "committer": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Sat Jan 26 22:20:06 2013 -0800" }, "message": "userns: Recommend use of memory control groups.\n\nIn the help text describing user namespaces recommend use of memory\ncontrol groups. In many cases memory control groups are the only\nmechanism there is to limit how much memory a user who can create\nuser namespaces can use.\n\nAcked-by: Serge Hallyn \u003cserge.hallyn@canonical.com\u003e\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\n" }, { "commit": "422d26b6ecd77af8c77f2a40580679459825170f", "tree": "632e690e458fb7b27db200cd6fcd5429e143e419", "parents": [ "4c271bb67c04253c1e99006eb48fb773a8fe8c0f", "949db153b6466c6f7cad5a427ecea94985927311" ], "author": { "name": "Greg Kroah-Hartman", "email": "gregkh@linuxfoundation.org", "time": "Fri Jan 25 21:06:30 2013 -0800" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@linuxfoundation.org", "time": "Fri Jan 25 21:06:30 2013 -0800" }, "message": "Merge 3.8-rc5 into driver-core-next\n\nThis resolves a gpio driver merge issue pointed out in linux-next.\n\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@linuxfoundation.org\u003e\n" }, { "commit": "d9d8d7ed498ec65bea72dd24be7b9cd35af0c200", "tree": "d2d9721c2e64a941f22a7c4a4611a53155d9ec36", "parents": [ "1c37c054a7493e0537ea3d15a59dac3a0aa63a05" ], "author": { "name": "Michal Marek", "email": "mmarek@suse.cz", "time": "Fri Jan 25 13:41:31 2013 +1030" }, "committer": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Fri Jan 25 16:55:37 2013 +1030" }, "message": "MODSIGN: Add option to not sign modules during modules_install\n\nTo allow the builder to sign only a subset of modules, or to sign the\nmodules using a key that is not available on the build machine, add\nCONFIG_MODULE_SIG_ALL. If this option is unset, no modules will be\nsigned during build. The default is \u0027y\u0027, to preserve the current\nbehavior.\n\nSigned-off-by: Michal Marek \u003cmmarek@suse.cz\u003e\nAcked-by: David Howells \u003cdhowells@redhat.com\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n" } ], "next": "227536740e5cb157fb9fa9b381178c7d34b95d3b" }