)]}' { "log": [ { "commit": "75659ca0c10992dcb39258518368a0f6f56e935d", "tree": "5d014ceb2f10158061a23d0d976f9a613d85e659", "parents": [ "fbdde7bd274d74729954190f99afcb1e3d9bbfba", "2dfe485a2c8afa54cb069fcf48476f6c90ea3fdf" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Feb 01 11:45:47 2008 +1100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Feb 01 11:45:47 2008 +1100" }, "message": "Merge branch \u0027task_killable\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/willy/misc\n\n* \u0027task_killable\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/willy/misc: (22 commits)\n Remove commented-out code copied from NFS\n NFS: Switch from intr mount option to TASK_KILLABLE\n Add wait_for_completion_killable\n Add wait_event_killable\n Add schedule_timeout_killable\n Use mutex_lock_killable in vfs_readdir\n Add mutex_lock_killable\n Use lock_page_killable\n Add lock_page_killable\n Add fatal_signal_pending\n Add TASK_WAKEKILL\n exit: Use task_is_*\n signal: Use task_is_*\n sched: Use task_contributes_to_load, TASK_ALL and TASK_NORMAL\n ptrace: Use task_is_*\n power: Use task_is_*\n wait: Use TASK_NORMAL\n proc/base.c: Use task_is_*\n proc/array.c: Use TASK_REPORT\n perfmon: Use task_is_*\n ...\n\nFixed up conflicts in NFS/sunrpc manually..\n" }, { "commit": "03252919b79891063cf99145612360efbdf9500b", "tree": "a80dc0c89448308d75d247446a5a04c84cb708a6", "parents": [ "d3432896dae72ee97deb850ad7bbc30329d32c0d" ], "author": { "name": "Andi Kleen", "email": "ak@suse.de", "time": "Wed Jan 30 13:33:18 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jan 30 13:33:18 2008 +0100" }, "message": "x86: print which shared library/executable faulted in segfault etc. messages v3\n\nThey now look like:\n\nhal-resmgr[13791]: segfault at 3c rip 2b9c8caec182 rsp 7fff1e825d30 error 4 in libacl.so.1.1.0[2b9c8caea000+6000]\n\nThis makes it easier to pinpoint bugs to specific libraries.\n\nAnd printing the offset into a mapping also always allows to find the\ncorrect fault point in a library even with randomized mappings. Previously\nthere was no way to actually find the correct code address inside\nthe randomized mapping.\n\nRelies on earlier patch to shorten the printk formats.\n\nThey are often now longer than 80 characters, but I think that\u0027s worth it.\n\n[includes fix from Eric Dumazet to check d_path error value]\n\nSigned-off-by: Andi Kleen \u003cak@suse.de\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "95c354fe9f7d6decc08a92aa26eb233ecc2155bf", "tree": "ec9267032ea875e84216cfb20acb2cfc7c62149f", "parents": [ "a95d67f87e1a5f1b4429be3ba3bf7b4051657908" ], "author": { "name": "Nick Piggin", "email": "npiggin@suse.de", "time": "Wed Jan 30 13:31:20 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jan 30 13:31:20 2008 +0100" }, "message": "spinlock: lockbreak cleanup\n\nThe break_lock data structure and code for spinlocks is quite nasty.\nNot only does it double the size of a spinlock but it changes locking to\na potentially less optimal trylock.\n\nPut all of that under CONFIG_GENERIC_LOCKBREAK, and introduce a\n__raw_spin_is_contended that uses the lock data itself to determine whether\nthere are waiters on the lock, to be used if CONFIG_GENERIC_LOCKBREAK is\nnot set.\n\nRename need_lockbreak to spin_needbreak, make it use spin_is_contended to\ndecouple it from the spinlock implementation, and make it typesafe (rwlocks\ndo not have any need_lockbreak sites -- why do they even get bloated up\nwith that break_lock then?).\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "c1d171a002942ea2d93b4fbd0c9583c56fce0772", "tree": "49249c927dc1644e7c92150808269cb474bdd411", "parents": [ "7b83dae7aa31db4f6d6e78c3c6d490a7ac58699c" ], "author": { "name": "Jiri Kosina", "email": "jkosina@suse.cz", "time": "Wed Jan 30 13:30:40 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jan 30 13:30:40 2008 +0100" }, "message": "x86: randomize brk\n\nRandomize the location of the heap (brk) for i386 and x86_64. The range is\nrandomized in the range starting at current brk location up to 0x02000000\noffset for both architectures. This, together with\npie-executable-randomization.patch and\npie-executable-randomization-fix.patch, should make the address space\nrandomization on i386 and x86_64 complete.\n\nArjan says:\n\nThis is known to break older versions of some emacs variants, whose dumper\ncode assumed that the last variable declared in the program is equal to the\nstart of the dynamically allocated memory region.\n\n(The dumper is the code where emacs effectively dumps core at the end of it\u0027s\ncompilation stage; this coredump is then loaded as the main program during\nnormal use)\n\niirc this was 5 years or so; we found this way back when I was at RH and we\nfirst did the security stuff there (including this brk randomization). It\nwasn\u0027t all variants of emacs, and it got fixed as a result (I vaguely remember\nthat emacs already had code to deal with it for other archs/oses, just\nifdeffed wrongly).\n\nIt\u0027s a rare and wrong assumption as a general thing, just on x86 it mostly\nhappened to be true (but to be honest, it\u0027ll break too if gcc does\nsomething fancy or if the linker does a non-standard order). Still its\nsomething we should at least document.\n\nNote 2: afaik it only broke the emacs *build*. I\u0027m not 100% sure about that\n(it IS 5 years ago) though.\n\n[ akpm@linux-foundation.org: deuglification ]\n\nSigned-off-by: Jiri Kosina \u003cjkosina@suse.cz\u003e\nCc: Arjan van de Ven \u003carjan@infradead.org\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nCc: Jakub Jelinek \u003cjakub@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "d5f68c6dbda8e63df258a0c639f03d7565cf1d50", "tree": "490df8e0dcdfd38e83754711d6db6ce0d055b121", "parents": [ "29e0d209b38479e6817318a971082421a7d630b7" ], "author": { "name": "Paul Mundt", "email": "lethal@linux-sh.org", "time": "Thu Nov 22 16:28:26 2007 +0900" }, "committer": { "name": "Paul Mundt", "email": "lethal@linux-sh.org", "time": "Mon Jan 28 13:18:55 2008 +0900" }, "message": "sh: Bump number of quicklists for SH-5.\n\nSync up with the SH definitions.\n\nSigned-off-by: Paul Mundt \u003clethal@linux-sh.org\u003e\n" }, { "commit": "fa717060f1ab7eb6570f2fb49136f838fc9195a9", "tree": "0338460dae3116563645e3bfa1ff5100d39826f8", "parents": [ "8eb703e4f33488bf75829564d51d427e17f7cd4c" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Jan 25 21:08:27 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jan 25 21:08:27 2008 +0100" }, "message": "sched: sched_rt_entity\n\nMove the task_struct members specific to rt scheduling together.\nA future optimization could be to put sched_entity and sched_rt_entity\ninto a union.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCC: Srivatsa Vaddagiri \u003cvatsa@linux.vnet.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "95402b3829010fe1e208f44e4a158ccade88969a", "tree": "3b9895b47623b4673e3c11121980e5171af76bbe", "parents": [ "86ef5c9a8edd78e6bf92879f32329d89b2d55b5a" ], "author": { "name": "Gautham R Shenoy", "email": "ego@in.ibm.com", "time": "Fri Jan 25 21:08:02 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jan 25 21:08:02 2008 +0100" }, "message": "cpu-hotplug: replace per-subsystem mutexes with get_online_cpus()\n\nThis patch converts the known per-subsystem mutexes to get_online_cpus\nput_online_cpus. It also eliminates the CPU_LOCK_ACQUIRE and\nCPU_LOCK_RELEASE hotplug notification events.\n\nSigned-off-by: Gautham R Shenoy \u003cego@in.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b47711bfbcd4eb77ca61ef0162487b20e023ae55", "tree": "b2a695dbd40f7ca2333664cf946ef34eda7b7dba", "parents": [ "7556afa0e0e436cad4f560ee83e5fbd5dac9359a", "2e08c0c1c3977a5ddc88887dd3af1b26c433e9d0" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jan 25 08:44:29 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jan 25 08:44:29 2008 -0800" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6:\n selinux: make mls_compute_sid always polyinstantiate\n security/selinux: constify function pointer tables and fields\n security: add a secctx_to_secid() hook\n security: call security_file_permission from rw_verify_area\n security: remove security_sb_post_mountroot hook\n Security: remove security.h include from mm.h\n Security: remove security_file_mmap hook sparse-warnings (NULL as 0).\n Security: add get, set, and cloning of superblock security information\n security/selinux: Add missing \"space\"\n" }, { "commit": "df8dc74e8a383eaf2d9b44b80a71ec6f0e52b42e", "tree": "bc3799a43e8b94fa84b32e37b1c124d5e4868f50", "parents": [ "556a169dab38b5100df6f4a45b655dddd3db94c1", "4a3ad20ccd8f4d2a0535cf98fa83f7b561ba59a9" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jan 25 08:34:42 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jan 25 08:35:13 2008 -0800" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6\n\nThis can be broken down into these major areas:\n - Documentation updates (language translations and fixes, as\n well as kobject and kset documenatation updates.)\n - major kset/kobject/ktype rework and fixes. This cleans up the\n kset and kobject and ktype relationship and architecture,\n making sense of things now, and good documenation and samples\n are provided for others to use. Also the attributes for\n kobjects are much easier to handle now. This cleaned up a LOT\n of code all through the kernel, making kobjects easier to use\n if you want to.\n - struct bus_type has been reworked to now handle the lifetime\n rules properly, as the kobject is properly dynamic.\n - struct driver has also been reworked, and now the lifetime\n issues are resolved.\n - the block subsystem has been converted to use struct device\n now, and not \"raw\" kobjects. This patch has been in the -mm\n tree for over a year now, and finally all the issues are\n worked out with it. Older distros now properly work with new\n kernels, and no userspace updates are needed at all.\n - nozomi driver is added. This has also been in -mm for a long\n time, and many people have asked for it to go in. It is now\n in good enough shape to do so.\n - lots of class_device conversions to use struct device instead.\n The tree is almost all cleaned up now, only SCSI and IB is the\n remaining code to fix up...\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6: (196 commits)\n Driver core: coding style fixes\n Kobject: fix coding style issues in kobject c files\n Kobject: fix coding style issues in kobject.h\n Driver core: fix coding style issues in device.h\n spi: use class iteration api\n scsi: use class iteration api\n rtc: use class iteration api\n power supply : use class iteration api\n ieee1394: use class iteration api\n Driver Core: add class iteration api\n Driver core: Cleanup get_device_parent() in device_add() and device_move()\n UIO: constify function pointer tables\n Driver Core: constify the name passed to platform_device_register_simple\n driver core: fix build with SYSFS\u003dn\n sysfs: make SYSFS_DEPRECATED depend on SYSFS\n Driver core: use LIST_HEAD instead of call to INIT_LIST_HEAD in __init\n kobject: add sample code for how to use ksets/ktypes/kobjects\n kobject: add sample code for how to use kobjects in a simple manner.\n kobject: update the kobject/kset documentation\n kobject: remove old, outdated documentation.\n ...\n" }, { "commit": "556a169dab38b5100df6f4a45b655dddd3db94c1", "tree": "c7788980db8dfb401dd4cf28f4445e1ab98f51d2", "parents": [ "eb36f4fc019835cecf0788907f6cab774508087b" ], "author": { "name": "Pekka Enberg", "email": "penberg@cs.helsinki.fi", "time": "Fri Jan 25 08:20:51 2008 +0200" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jan 25 08:30:36 2008 -0800" }, "message": "slab: fix bootstrap on memoryless node\n\nIf the node we\u0027re booting on doesn\u0027t have memory, bootstrapping kmalloc()\ncaches resorts to fallback_alloc() which requires -\u003enodelists set for all\nnodes. Fix that by calling set_up_list3s() for CACHE_CACHE in\nkmem_cache_init().\n\nAs kmem_getpages() is called with GFP_THISNODE set, this used to work before\nbecause of breakage in 2.6.22 and before with GFP_THISNODE returning pages from\nthe wrong node if a node had no memory. So it may have worked accidentally and\nin an unsafe manner because the pages would have been associated with the wrong\nnode which could trigger bug ons and locking troubles.\n\nTested-by: Mel Gorman \u003cmel@csn.ul.ie\u003e\nTested-by: Olaf Hering \u003colaf@aepfle.de\u003e\nReviewed-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\n[ With additional one-liner by Olaf Hering - Linus ]\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "1eada11c88251e0a30ce5690d2607bb4293b3564", "tree": "8ee96c0300fadd21bdbd872d55cac3c19b4cedbc", "parents": [ "cf15126b3d4511e06e5299781ab74922590900be" ], "author": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Mon Dec 17 23:05:35 2007 -0700" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Thu Jan 24 20:40:31 2008 -0800" }, "message": "Kobject: convert mm/slub.c to use kobject_init/add_ng()\n\nThis converts the code to use the new kobject functions, cleaning up the\nlogic in doing so.\n\nCc: Christoph Lameter \u003cclameter@sgi.com\u003e\nCc: Kay Sievers \u003ckay.sievers@vrfy.org\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n" }, { "commit": "0ff21e46630abce11fdaaffabd72bbd4eed5ac2c", "tree": "cc49671622ef90775bf12a91d20b8286aa346e6f", "parents": [ "5c03c7ab886859eb195440dbb6ccb8c30c4e84cc" ], "author": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Tue Nov 06 10:36:58 2007 -0800" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Thu Jan 24 20:40:24 2008 -0800" }, "message": "kobject: convert kernel_kset to be a kobject\n\nkernel_kset does not need to be a kset, but a much simpler kobject now\nthat we have kobj_attributes.\n\nWe also rename kernel_kset to kernel_kobj to catch all users of this\nsymbol with a build error instead of an easy-to-ignore build warning.\n\nCc: Kay Sievers \u003ckay.sievers@vrfy.org\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n" }, { "commit": "081248de0a0288a0ce4e1447a07ccf56aa4fae01", "tree": "2a45ac7ad26aa8f8edb9e72ac8be461be82d0271", "parents": [ "27c3a314d55b810f3b51902d1d815c714a7afbd2" ], "author": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Thu Nov 01 09:29:06 2007 -0600" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Thu Jan 24 20:40:16 2008 -0800" }, "message": "kset: move /sys/slab to /sys/kernel/slab\n\n/sys/kernel is where these things should go.\nAlso updated the documentation and tool that used this directory.\n\nCc: Kay Sievers \u003ckay.sievers@vrfy.org\u003e\nAcked-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n" }, { "commit": "27c3a314d55b810f3b51902d1d815c714a7afbd2", "tree": "9f3efcc6d94661eda3ed10aa96fb011c7fe164d8", "parents": [ "aade4041aa60a3ed335391ba308458e26f2dbc0a" ], "author": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Thu Nov 01 09:29:06 2007 -0600" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Thu Jan 24 20:40:15 2008 -0800" }, "message": "kset: convert slub to use kset_create\n\nDynamically create the kset instead of declaring it statically.\n\nCc: Kay Sievers \u003ckay.sievers@vrfy.org\u003e\nCc: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n" }, { "commit": "3514faca19a6fdc209734431c509631ea92b094e", "tree": "f6d102e6dec276f8e8d1044b47c74a02b901554f", "parents": [ "c11c4154e7ff4cebfadad849b1e22689d759c3f4" ], "author": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Tue Oct 16 10:11:44 2007 -0600" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Thu Jan 24 20:40:10 2008 -0800" }, "message": "kobject: remove struct kobj_type from struct kset\n\nWe don\u0027t need a \"default\" ktype for a kset. We should set this\nexplicitly every time for each kset. This change is needed so that we\ncan make ksets dynamic, and cleans up one of the odd, undocumented\nassumption that the kset/kobject/ktype model has.\n\nThis patch is based on a lot of help from Kay Sievers.\n\nNasty bug in the block code was found by Dave Young\n\u003chidave.darkstar@gmail.com\u003e\n\nCc: Kay Sievers \u003ckay.sievers@vrfy.org\u003e\nCc: Dave Young \u003chidave.darkstar@gmail.com\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n" }, { "commit": "88c3f7a8f2c86be264d326cf6f49a3e8c30d13a6", "tree": "9ab4e6996d3630652e55468b0a8ce77242630ac3", "parents": [ "c9180a57a9ab2d5525faf8815a332364ee9e89b7" ], "author": { "name": "Richard Knutsson", "email": "ricknu-0@student.ltu.se", "time": "Sat Dec 08 12:02:48 2007 +0100" }, "committer": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Fri Jan 25 11:29:48 2008 +1100" }, "message": "Security: remove security_file_mmap hook sparse-warnings (NULL as 0).\n\nFixing:\n CHECK mm/mmap.c\nmm/mmap.c:1623:29: warning: Using plain integer as NULL pointer\nmm/mmap.c:1623:29: warning: Using plain integer as NULL pointer\nmm/mmap.c:1944:29: warning: Using plain integer as NULL pointer\n\nSigned-off-by: Richard Knutsson \u003cricknu-0@student.ltu.se\u003e\nSigned-off-by: James Morris \u003cjmorris@namei.org\u003e\n" }, { "commit": "9c09a95cf431fcf5720f2e408befa24b32b8cf4d", "tree": "c188d29023856625e91dea6c2e54d6e4c7969e87", "parents": [ "c5c99429fa57dcf6e05203ebe3676db1ec646793" ], "author": { "name": "Mel Gorman", "email": "mel@csn.ul.ie", "time": "Thu Jan 24 05:49:54 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Jan 24 08:07:27 2008 -0800" }, "message": "slab: partially revert list3 changes\n\nPartial revert the changes made by 04231b3002ac53f8a64a7bd142fde3fa4b6808c6\nto the kmem_list3 management. On a machine with a memoryless node, this\nBUG_ON was triggering\n\n\tstatic void *____cache_alloc_node(struct kmem_cache *cachep, gfp_t flags, int nodeid)\n\t{\n\t\tstruct list_head *entry;\n\t\tstruct slab *slabp;\n\t\tstruct kmem_list3 *l3;\n\t\tvoid *obj;\n\t\tint x;\n\n\t\tl3 \u003d cachep-\u003enodelists[nodeid];\n\t\tBUG_ON(!l3);\n\nSigned-off-by: Mel Gorman \u003cmel@csn.ul.ie\u003e\nCc: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nAcked-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nCc: \"Aneesh Kumar K.V\" \u003caneesh.kumar@linux.vnet.ibm.com\u003e\nCc: Nishanth Aravamudan \u003cnacc@us.ibm.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c5c99429fa57dcf6e05203ebe3676db1ec646793", "tree": "0be05b59713e87a42274c0fe76da48f423f148e1", "parents": [ "c2f3dabefa73fe3307578553f456e93f0a1bca08" ], "author": { "name": "Larry Woodman", "email": "lwoodman@redhat.com", "time": "Thu Jan 24 05:49:25 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Jan 24 08:07:27 2008 -0800" }, "message": "fix hugepages leak due to pagetable page sharing\n\nThe shared page table code for hugetlb memory on x86 and x86_64\nis causing a leak. When a user of hugepages exits using this code\nthe system leaks some of the hugepages.\n\n-------------------------------------------------------\nPart of /proc/meminfo just before database startup:\nHugePages_Total: 5500\nHugePages_Free: 5500\nHugePages_Rsvd: 0\nHugepagesize: 2048 kB\n\nJust before shutdown:\nHugePages_Total: 5500\nHugePages_Free: 4475\nHugePages_Rsvd: 0\nHugepagesize: 2048 kB\n\nAfter shutdown:\nHugePages_Total: 5500\nHugePages_Free: 4988\nHugePages_Rsvd:\n0 Hugepagesize: 2048 kB\n----------------------------------------------------------\n\nThe problem occurs durring a fork, in copy_hugetlb_page_range(). It\nlocates the dst_pte using huge_pte_alloc(). Since huge_pte_alloc() calls\nhuge_pmd_share() it will share the pmd page if can, yet the main loop in\ncopy_hugetlb_page_range() does a get_page() on every hugepage. This is a\nviolation of the shared hugepmd pagetable protocol and creates additional\nreferenced to the hugepages causing a leak when the unmap of the VMA\noccurs. We can skip the entire replication of the ptes when the hugepage\npagetables are shared. The attached patch skips copying the ptes and the\nget_page() calls if the hugetlbpage pagetable is shared.\n\n[akpm@linux-foundation.org: coding-style cleanups]\nSigned-off-by: Larry Woodman \u003clwoodman@redhat.com\u003e\nSigned-off-by: Adam Litke \u003cagl@us.ibm.com\u003e\nCc: Badari Pulavarty \u003cpbadari@us.ibm.com\u003e\nCc: Ken Chen \u003ckenchen@google.com\u003e\nCc: David Gibson \u003cdavid@gibson.dropbear.id.au\u003e\nCc: William Lee Irwin III \u003cwli@holomorphy.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "8f7b3d156d348b6766833cd4e272d0d19b501e64", "tree": "7569825ce2b5e95213d2b5abd2491f7b1667bdc2", "parents": [ "667984d9e481e43a930a478c588dced98cb61fea" ], "author": { "name": "Anton Salikhmetov", "email": "salikhmetov@gmail.com", "time": "Wed Jan 23 02:21:18 2008 +0300" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Jan 23 09:58:55 2008 -0800" }, "message": "Update ctime and mtime for memory-mapped files\n\nUpdate ctime and mtime for memory-mapped files at a write access on\na present, read-only PTE, as well as at a write on a non-present PTE.\n\nSigned-off-by: Anton Salikhmetov \u003csalikhmetov@gmail.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "9723198c219f3546982cb469e5aed26e68399055", "tree": "b8e195cb1ca1bdf143e4e564fdb43f09aadfd6f3", "parents": [ "6b2d2cec1081a979e0efd6a1e9559e5a01a3c10e" ], "author": { "name": "Carsten Otte", "email": "cotte@de.ibm.com", "time": "Thu Jan 17 15:21:17 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Jan 17 15:38:59 2008 -0800" }, "message": "#ifdef very expensive debug check in page fault path\n\nThis patch puts #ifdef CONFIG_DEBUG_VM around a check in vm_normal_page\nthat verifies that a pfn is valid. This patch increases performance of the\npage fault microbenchmark in lmbench by 13% and overall dbench performance\nby 7% on s390x. pfn_valid() is an expensive operation on s390 that needs a\nhigh double digit amount of CPU cycles. Nick Piggin suggested that\npfn_valid() involves an array lookup on systems with sparsemem, and\ntherefore is an expensive operation there too.\n\nThe check looks like a clear debug thing to me, it should never trigger on\nregular kernels. And if a pte is created for an invalid pfn, we\u0027ll find\nout once the memory gets accessed later on anyway. Please consider\ninclusion of this patch into mm.\n\nSigned-off-by: Carsten Otte \u003ccotte@de.ibm.com\u003e\nAcked-by: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "1d6f4e60e736a00b50ec668ba1a9fe27afb083a3", "tree": "5d08b61e5aba935662763fbfce05768eb5067ac4", "parents": [ "b0e86f0a3b9329bbebadb01ca935208459df18c3" ], "author": { "name": "Sam Ravnborg", "email": "sam@ravnborg.org", "time": "Thu Jan 17 15:21:12 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Jan 17 15:38:58 2008 -0800" }, "message": "mm: fix section mismatch warning in page_alloc.c\n\nWith CONFIG_HOTPLUG\u003dn and CONFIG_HOTPLUG_CPU\u003dy we saw\nfollowing warning:\nWARNING: mm/built-in.o(.text+0x6864): Section mismatch: reference to .init.text: (between \u0027process_zones\u0027 and \u0027pageset_cpuup_callback\u0027)\n\nThe culprit was zone_batchsize() which were annotated __devinit but used\nfrom process_zones() which is annotated __cpuinit. zone_batchsize() are\nused from another function annotated __meminit so the only valid option is\nto drop the annotation of zone_batchsize() so we know it is always valid to\nuse it.\n\nSigned-off-by: Sam Ravnborg \u003csam@ravnborg.org\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c23f72cae9523d29ff94eec8f30ccbdaf234b20e", "tree": "1e5f46971510cd36a3deebfa8f160933212f4df0", "parents": [ "031f2dcd7075e218e74dd7f942ad015cf82dffab" ], "author": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Jan 14 21:21:29 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Jan 14 21:21:29 2008 -0800" }, "message": "Revert \"writeback: introduce writeback_control.more_io to indicate more io\"\n\nThis reverts commit 2e6883bdf49abd0e7f0d9b6297fc3be7ebb2250b, as\nrequested by Fengguang Wu. It\u0027s not quite fully baked yet, and while\nthere are patches around to fix the problems it caused, they should get\nmore testing. Says Fengguang: \"I\u0027ll resend them both for -mm later on,\nin a more complete patchset\".\n\nSee\n\n\thttp://bugzilla.kernel.org/show_bug.cgi?id\u003d9738\n\nfor some of this discussion.\n\nRequested-by: Fengguang Wu \u003cwfg@mail.ustc.edu.cn\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "68842c9b94560e647e8e7cc75cbb3dbe59f6fcb5", "tree": "58220ff2840a62155d3e7f934bc39e4cea673b39", "parents": [ "747d016e7e25e216b31022fe2b012508d99fb682" ], "author": { "name": "Ken Chen", "email": "kenchen@google.com", "time": "Mon Jan 14 00:55:19 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Jan 14 08:52:23 2008 -0800" }, "message": "hugetlbfs: fix quota leak\n\nIn the error path of both shared and private hugetlb page allocation,\nthe file system quota is never undone, leading to fs quota leak. Fix\nthem up.\n\n[akpm@linux-foundation.org: cleanup, micro-optimise]\nSigned-off-by: Ken Chen \u003ckenchen@google.com\u003e\nAcked-by: Adam Litke \u003cagl@us.ibm.com\u003e\nCc: David Gibson \u003cdavid@gibson.dropbear.id.au\u003e\nCc: William Lee Irwin III \u003cwli@holomorphy.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "96990a4ae979df9e235d01097d6175759331e88c", "tree": "ba545616c7deb1cca99565655a80564564d39bd4", "parents": [ "8f4c79ce79d1552014af3c115d03e13092443905" ], "author": { "name": "Christoph Lameter", "email": "clameter@sgi.com", "time": "Mon Jan 14 00:55:14 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Jan 14 08:52:22 2008 -0800" }, "message": "quicklists: Only consider memory that can be used with GFP_KERNEL\n\nQuicklists calculates the size of the quicklists based on the number of\nfree pages. This must be the number of free pages that can be allocated\nwith GFP_KERNEL. node_page_state() includes the pages in ZONE_HIGHMEM and\nZONE_MOVABLE which may lead the quicklists to become too large causing OOM.\n\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nTested-by: Dhaval Giani \u003cdhaval@linux.vnet.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "467bc461d2845f6a04b124bca1ae6ecc554e1ee5", "tree": "060bed1cbd2440486d2abaafd8f0f2b8e6b9f76b", "parents": [ "22a860a9e22fa077300e1e72170afb82bf695617" ], "author": { "name": "Thomas Bogendoerfer", "email": "tsbogend@alpha.franken.de", "time": "Tue Jan 08 15:33:11 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Jan 08 16:10:36 2008 -0800" }, "message": "Fix crash with FLAT_MEMORY and ARCH_PFN_OFFSET !\u003d 0\n\nWhen using FLAT_MEMORY and ARCH_PFN_OFFSET is not 0, the kernel crashes in\nmemmap_init_zone(). This bug got introduced by commit\nc713216deebd95d2b0ab38fef8bb2361c0180c2d\n\nSigned-off-by: Thomas Bogendoerfer \u003ctsbogend@alpha.franken.de\u003e\nAcked-by: Mel Gorman \u003cmel@csn.ul.ie\u003e\nCc: Bob Picco \u003cbob.picco@hp.com\u003e\nCc: Dave Hansen \u003chaveblue@us.ibm.com\u003e\nCc: Andy Whitcroft \u003capw@shadowen.org\u003e\nCc: Andi Kleen \u003cak@muc.de\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: \"Keith Mannthey\" \u003ckmannth@gmail.com\u003e\nCc: \"Luck, Tony\" \u003ctony.luck@intel.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Yasunori Goto \u003cy-goto@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c51b1a160b63304720d49479986915e4c475a2cf", "tree": "88de6d01e76ead9920a8b3113830715224af0970", "parents": [ "0f94e87cdeaaac9f0f9a28a5dd2a5070b87cd3e8" ], "author": { "name": "Akinobu Mita", "email": "akinobu.mita@gmail.com", "time": "Tue Jan 08 15:32:57 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Jan 08 16:10:36 2008 -0800" }, "message": "xip: fix get_zeroed_page with __GFP_HIGHMEM\n\nThe use of get_zeroed_page() with __GFP_HIGHMEM is invalid. Use\nalloc_page() with __GFP_ZERO instead of invalid get_zeroed_page().\n\n(This patch is only compile tested)\n\nCc: Carsten Otte \u003ccotte@de.ibm.com\u003e\nSigned-off-by: Akinobu Mita \u003cakinobu.mita@gmail.com\u003e\nAcked-by: Hugh Dickins \u003chugh@veritas.com\u003e\nAcked-by: Carsten Otte \u003ccotte@de.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "158a962422e4a54dc256b6a9b9562f3d30d34d9c", "tree": "21a71d7d671d12388f4b085e31b0258d1047f125", "parents": [ "6b6adc22a01941165d5af9a3e69e28e948b28f47" ], "author": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Jan 02 13:04:48 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Jan 02 13:04:48 2008 -0800" }, "message": "Unify /proc/slabinfo configuration\n\nBoth SLUB and SLAB really did almost exactly the same thing for\n/proc/slabinfo setup, using duplicate code and per-allocator #ifdef\u0027s.\n\nThis just creates a common CONFIG_SLABINFO that is enabled by both SLUB\nand SLAB, and shares all the setup code. Maybe SLOB will want this some\nday too.\n\nReviewed-by: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "57ed3eda977a215f054102b460ab0eb5d8d112e6", "tree": "aff1529df49c14df1f84d78fbae66a4a0bcfcdb8", "parents": [ "476c6c11a9ee4610ff0e4941e3851729f7caf062" ], "author": { "name": "Pekka J Enberg", "email": "penberg@cs.helsinki.fi", "time": "Tue Jan 01 17:23:28 2008 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Jan 01 11:32:02 2008 -0800" }, "message": "slub: provide /proc/slabinfo\n\nThis adds a read-only /proc/slabinfo file on SLUB, that makes slabtop work.\n\n[ mingo@elte.hu: build fix. ]\n\nCc: Andi Kleen \u003candi@firstfloor.org\u003e\nCc: Christoph Lameter \u003cclameter@sgi.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "76be895001f2b0bee42a7685e942d3e08d5dd46c", "tree": "7444607c21c11ad363eee300f286ad8e1b71b65f", "parents": [ "ea67db4cdbbf7f4e74150e71da0984e25121f500" ], "author": { "name": "Christoph Lameter", "email": "clameter@sgi.com", "time": "Fri Dec 21 14:37:37 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Dec 21 15:51:07 2007 -0800" }, "message": "SLUB: Improve hackbench speed\n\nIncrease the mininum number of partial slabs to keep around and put\npartial slabs to the end of the partial queue so that they can add\nmore objects.\n\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nReviewed-by: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3a6927906f1b2adf5a31b789322d32eb8559ada0", "tree": "ef5b9dce5fd1b27be027fcff0a749547e9319ff0", "parents": [ "3e3b3916a9c5c28a16528585478de19fea59816b" ], "author": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Dec 19 14:05:13 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Dec 19 14:05:13 2007 -0800" }, "message": "Do dirty page accounting when removing a page from the page cache\n\nKrzysztof Oledzki noticed a dirty page accounting leak on some of his\nmachines, causing the machine to eventually lock up when the kernel\ndecided that there was too much dirty data, but nobody could actually\nwrite anything out to fix it.\n\nThe culprit turns out to be filesystems (cough ext3 with data\u003djournal\ncough) that re-dirty the page when the \"-\u003einvalidatepage()\" callback is\ncalled.\n\nFix it up by doing a final dirty page accounting check when we actually\nremove the page from the page cache.\n\nThis fixes bugzilla entry 9182:\n\n\thttp://bugzilla.kernel.org/show_bug.cgi?id\u003d9182\n\nTested-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nTested-by: Krzysztof Oledzki \u003colel@ans.pl\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3811dbf67162bd08412f1b0e02e554f353e93bdb", "tree": "eacc81b9fdc23d7b51ab07fccbfe7950563a1de9", "parents": [ "087ee8d5bec1aa6d0a1dfe3067c7298375462ceb" ], "author": { "name": "Christoph Lameter", "email": "clameter@sgi.com", "time": "Mon Dec 17 16:20:27 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Dec 17 19:28:17 2007 -0800" }, "message": "SLUB: remove useless masking of GFP_ZERO\n\nRemove a recently added useless masking of GFP_ZERO. GFP_ZERO is already\nmasked out in new_slab() (See how it calls allocate_slab). No need to do\nit twice.\n\nThis reverts the SLUB parts of 7fd272550bd43cc1d7289ef0ab2fa50de137e767.\n\nCc: Matt Mackall \u003cmpm@selenic.com\u003e\nReviewed-by: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "368d2c6358c3c62b3820a8a73f9fe9c8b540cdea", "tree": "43c9c0958897de5ecedf26c3ba8433dd252d24f7", "parents": [ "d1c3fb1f8f29c41b0d098d7cfb3c32939043631f" ], "author": { "name": "Nishanth Aravamudan", "email": "nacc@us.ibm.com", "time": "Mon Dec 17 16:20:22 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Dec 17 19:28:17 2007 -0800" }, "message": "Revert \"hugetlb: Add hugetlb_dynamic_pool sysctl\"\n\nThis reverts commit 54f9f80d6543fb7b157d3b11e2e7911dc1379790 (\"hugetlb:\nAdd hugetlb_dynamic_pool sysctl\")\n\nGiven the new sysctl nr_overcommit_hugepages, the boolean dynamic pool\nsysctl is not needed, as its semantics can be expressed by 0 in the\novercommit sysctl (no dynamic pool) and non-0 in the overcommit sysctl\n(pool enabled).\n\n(Needed in 2.6.24 since it reverts a post-2.6.23 userspace-visible change)\n\nSigned-off-by: Nishanth Aravamudan \u003cnacc@us.ibm.com\u003e\nAcked-by: Adam Litke \u003cagl@us.ibm.com\u003e\nCc: William Lee Irwin III \u003cwli@holomorphy.com\u003e\nCc: Dave Hansen \u003chaveblue@us.ibm.com\u003e\nCc: David Gibson \u003cdavid@gibson.dropbear.id.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d1c3fb1f8f29c41b0d098d7cfb3c32939043631f", "tree": "b91983662da7ec4c28ac0788e835c2d51eea20e1", "parents": [ "7a3f595cc8298df14a7c71b0d876bafd8e9e1cbf" ], "author": { "name": "Nishanth Aravamudan", "email": "nacc@us.ibm.com", "time": "Mon Dec 17 16:20:12 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Dec 17 19:28:17 2007 -0800" }, "message": "hugetlb: introduce nr_overcommit_hugepages sysctl\n\nhugetlb: introduce nr_overcommit_hugepages sysctl\n\nWhile examining the code to support /proc/sys/vm/hugetlb_dynamic_pool, I\nbecame convinced that having a boolean sysctl was insufficient:\n\n1) To support per-node control of hugepages, I have previously submitted\npatches to add a sysfs attribute related to nr_hugepages. However, with\na boolean global value and per-mount quota enforcement constraining the\ndynamic pool, adding corresponding control of the dynamic pool on a\nper-node basis seems inconsistent to me.\n\n2) Administration of the hugetlb dynamic pool with multiple hugetlbfs\nmount points is, arguably, more arduous than it needs to be. Each quota\nwould need to be set separately, and the sum would need to be monitored.\n\nTo ease the administration, and to help make the way for per-node\ncontrol of the static \u0026 dynamic hugepage pool, I added a separate\nsysctl, nr_overcommit_hugepages. This value serves as a high watermark\nfor the overall hugepage pool, while nr_hugepages serves as a low\nwatermark. The boolean sysctl can then be removed, as the condition\n\n\tnr_overcommit_hugepages \u003e 0\n\nindicates the same administrative setting as\n\n\thugetlb_dynamic_pool \u003d\u003d 1\n\nQuotas still serve as local enforcement of the size of the pool on a\nper-mount basis.\n\nA few caveats:\n\n1) There is a race whereby the global surplus huge page counter is\nincremented before a hugepage has allocated. Another process could then\ntry grow the pool, and fail to convert a surplus huge page to a normal\nhuge page and instead allocate a fresh huge page. I believe this is\nbenign, as no memory is leaked (the actual pages are still tracked\ncorrectly) and the counters won\u0027t go out of sync.\n\n2) Shrinking the static pool while a surplus is in effect will allow the\nnumber of surplus huge pages to exceed the overcommit value. As long as\nthis condition holds, however, no more surplus huge pages will be\nallowed on the system until one of the two sysctls are increased\nsufficiently, or the surplus huge pages go out of use and are freed.\n\nSuccessfully tested on x86_64 with the current libhugetlbfs snapshot,\nmodified to use the new sysctl.\n\nSigned-off-by: Nishanth Aravamudan \u003cnacc@us.ibm.com\u003e\nAcked-by: Adam Litke \u003cagl@us.ibm.com\u003e\nCc: William Lee Irwin III \u003cwli@holomorphy.com\u003e\nCc: Dave Hansen \u003chaveblue@us.ibm.com\u003e\nCc: David Gibson \u003cdavid@gibson.dropbear.id.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "81eabcbe0b991ddef5216f30ae91c4b226d54b6d", "tree": "f444d157d56583e034d3384a0102b5cb22d08743", "parents": [ "8d936626dd00bd47cf574add458fea8a23b79611" ], "author": { "name": "Mel Gorman", "email": "mel@csn.ul.ie", "time": "Mon Dec 17 16:20:05 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Dec 17 19:28:16 2007 -0800" }, "message": "mm: fix page allocation for larger I/O segments\n\nIn some cases the IO subsystem is able to merge requests if the pages are\nadjacent in physical memory. This was achieved in the allocator by having\nexpand() return pages in physically contiguous order in situations were a\nlarge buddy was split. However, list-based anti-fragmentation changed the\norder pages were returned in to avoid searching in buffered_rmqueue() for a\npage of the appropriate migrate type.\n\nThis patch restores behaviour of rmqueue_bulk() preserving the physical\norder of pages returned by the allocator without incurring increased search\ncosts for anti-fragmentation.\n\nSigned-off-by: Mel Gorman \u003cmel@csn.ul.ie\u003e\nCc: James Bottomley \u003cJames.Bottomley@steeleye.com\u003e\nCc: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nCc: Mark Lord \u003cmlord@pobox.com\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "bbd0682596f7a434467ee551fee18d5f0b818539", "tree": "3afd7cbb301125fc21799a5fd9a70c2b5d700f17", "parents": [ "af0cd5a7c3cded50c25e98acd94912d17a0eb914" ], "author": { "name": "WANG Cong", "email": "xiyou.wangcong@gmail.com", "time": "Mon Dec 17 16:19:59 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Dec 17 19:28:16 2007 -0800" }, "message": "mm/sparse.c: improve the error handling for sparse_add_one_section()\n\nImprove the error handling for mm/sparse.c::sparse_add_one_section(). And I\nsee no reason to check \u0027usemap\u0027 until holding the \u0027pgdat_resize_lock\u0027.\n\n[geoffrey.levand@am.sony.com: sparse_index_init() returns -EEXIST]\nCc: Christoph Lameter \u003cclameter@sgi.com\u003e\nAcked-by: Dave Hansen \u003chaveblue@us.ibm.com\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nAcked-by: Yasunori Goto \u003cy-goto@jp.fujitsu.com\u003e\nCc: Andy Whitcroft \u003capw@shadowen.org\u003e\nSigned-off-by: WANG Cong \u003cxiyou.wangcong@gmail.com\u003e\nSigned-off-by: Geoff Levand \u003cgeoffrey.levand@am.sony.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "af0cd5a7c3cded50c25e98acd94912d17a0eb914", "tree": "fcdf2cef80bb8846a8171333e78425abf0c3a326", "parents": [ "bd6cba53c524dccf72900435d29722b22f61d835" ], "author": { "name": "WANG Cong", "email": "xiyou.wangcong@gmail.com", "time": "Mon Dec 17 16:19:58 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Dec 17 19:28:16 2007 -0800" }, "message": "mm/sparse.c: check the return value of sparse_index_alloc()\n\nSince sparse_index_alloc() can return NULL on memory allocation failure,\nwe must deal with the failure condition when calling it.\n\nSigned-off-by: WANG Cong \u003cxiyou.wangcong@gmail.com\u003e\nCc: Christoph Lameter \u003cclameter@sgi.com\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a5ee6daa525c04079baee6f393c0b2dab3f61253", "tree": "5024bdedd14111e3cf6723a41390b2f80dec8bfd", "parents": [ "2e12a7fb0d79d011ff9e0b09b53ca4438e5604de" ], "author": { "name": "Geoff Levand", "email": "geoffrey.levand@am.sony.com", "time": "Mon Dec 17 16:19:53 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Dec 17 19:28:16 2007 -0800" }, "message": "sparsemem: make SPARSEMEM_VMEMMAP selectable\n\nSPARSEMEM_VMEMMAP needs to be a selectable config option to support\nbuilding the kernel both with and without sparsemem vmemmap support. This\nselection is desirable for platforms which could be configured one way for\nplatform specific builds and the other for multi-platform builds.\n\nSigned-off-by: Miguel Botón \u003cmboton@gmail.com\u003e\nSigned-off-by: Geoff Levand \u003cgeoffrey.levand@am.sony.com\u003e\nAcked-by: Yasunori Goto \u003cy-goto@jp.fujitsu.com\u003e\nCc: Christoph Lameter \u003cclameter@sgi.com\u003e\nCc: Andy Whitcroft \u003capw@shadowen.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "72fad7139b6829f71d7f41f39eb30da5760d90a8", "tree": "4f33b824f37923b8f65f2a0542a2e9dcb110c22e", "parents": [ "8805f2387086a7e6a9647d0713fc075694130d6c" ], "author": { "name": "Adam Litke", "email": "agl@us.ibm.com", "time": "Mon Dec 10 15:49:28 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Dec 10 19:43:55 2007 -0800" }, "message": "hugetlb: handle write-protection faults in follow_hugetlb_page\n\nThe follow_hugetlb_page() fix I posted (merged as git commit\n5b23dbe8173c212d6a326e35347b038705603d39) missed one case. If the pte is\npresent, but not writable and write access is requested by the caller to\nget_user_pages(), the code will do the wrong thing. Rather than calling\nhugetlb_fault to make the pte writable, it notes the presence of the pte\nand continues.\n\nThis simple one-liner makes sure we also fault on the pte for this case.\nPlease apply.\n\nSigned-off-by: Adam Litke \u003cagl@us.ibm.com\u003e\nAcked-by: Dave Kleikamp \u003cshaggy@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "7fd272550bd43cc1d7289ef0ab2fa50de137e767", "tree": "85c2ae7f4a7f5df3cc2cbd27056ff052ae0de5e2", "parents": [ "94545baded0bfbabdc30a3a4cb48b3db479dd6ef" ], "author": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Sun Dec 09 10:14:36 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Sun Dec 09 10:17:52 2007 -0800" }, "message": "Avoid double memclear() in SLOB/SLUB\n\nBoth slob and slub react to __GFP_ZERO by clearing the allocation, which\nmeans that passing the GFP_ZERO bit down to the page allocator is just\nwasteful and pointless.\n\nAcked-by: Matt Mackall \u003cmpm@selenic.com\u003e\nReviewed-by: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "0b94e97a25d9b06ef17fca8da23169200bead1e2", "tree": "4f7d920d03e9532d93921831efe704a4b645a3b4", "parents": [ "2687a3569e40b1302f96698bcd6329aeb0ce3dd2" ], "author": { "name": "Matthew Wilcox", "email": "matthew@wil.cx", "time": "Thu Dec 06 11:19:57 2007 -0500" }, "committer": { "name": "Matthew Wilcox", "email": "willy@linux.intel.com", "time": "Thu Dec 06 17:35:48 2007 -0500" }, "message": "Use lock_page_killable\n\nReplacing lock_page with lock_page_killable in do_generic_mapping_read()\nallows us to kill `cat\u0027 of a file on an NFS-mounted filesystem\n\nSigned-off-by: Matthew Wilcox \u003cwilly@linux.intel.com\u003e\n" }, { "commit": "2687a3569e40b1302f96698bcd6329aeb0ce3dd2", "tree": "7bb5e1ffd807ef94b145f6829bf4326a98b8fd99", "parents": [ "f776d12dd16da1b0cd55a1240002c1b31f315d5d" ], "author": { "name": "Matthew Wilcox", "email": "matthew@wil.cx", "time": "Thu Dec 06 11:18:49 2007 -0500" }, "committer": { "name": "Matthew Wilcox", "email": "willy@linux.intel.com", "time": "Thu Dec 06 17:35:41 2007 -0500" }, "message": "Add lock_page_killable\n\nThis routine is like lock_page, but can be interrupted by a fatal signal\n\nSigned-off-by: Matthew Wilcox \u003cwilly@linux.intel.com\u003e\n" }, { "commit": "ad658cec232771b11e95bb5f0d639d48f898a1f2", "tree": "7ef4ed87cbba8d8395f67c21af5c167d5de0293a", "parents": [ "2a1292b36ba106b9b7f030d3fa130f5f634fd8f0", "5a211a5deabcafdc764817d5b4510c767d317ddc" ], "author": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Dec 05 09:26:52 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Dec 05 09:26:52 2007 -0800" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6:\n VM/Security: add security hook to do_brk\n Security: round mmap hint address above mmap_min_addr\n security: protect from stack expantion into low vm addresses\n Security: allow capable check to permit mmap or low vm space\n SELinux: detect dead booleans\n SELinux: do not clear f_op when removing entries\n" }, { "commit": "ecaf18c15aac8bb9bed7b7aa0e382fe252e275d5", "tree": "cefce88c3d253992f939c2f8a1b66b8932272cbb", "parents": [ "294a80a8ed004b383ab214837e1c05ca4098a717" ], "author": { "name": "Eric Paris", "email": "eparis@redhat.com", "time": "Tue Dec 04 23:45:31 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Dec 05 09:21:21 2007 -0800" }, "message": "VM/Security: add security hook to do_brk\n\nGiven a specifically crafted binary do_brk() can be used to get low pages\navailable in userspace virtual memory and can thus be used to circumvent\nthe mmap_min_addr low memory protection. Add security checks in do_brk().\n\nSigned-off-by: Eric Paris \u003ceparis@redhat.com\u003e\nAcked-by: Alan Cox \u003calan@redhat.com\u003e\nCc: Stephen Smalley \u003csds@tycho.nsa.gov\u003e\nCc: James Morris \u003cjmorris@namei.org\u003e\nCc: Chris Wright \u003cchrisw@sous-sol.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "294a80a8ed004b383ab214837e1c05ca4098a717", "tree": "2cbf9d33ccafa5042dbde85641d4ca27dcf47dc5", "parents": [ "5a622f2d0f86b316b07b55a4866ecb5518dd1cf7" ], "author": { "name": "Vegard Nossum", "email": "vegard.nossum@gmail.com", "time": "Tue Dec 04 23:45:30 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Dec 05 09:21:20 2007 -0800" }, "message": "SLUB\u0027s ksize() fails for size \u003e 2048\n\nI can\u0027t pass memory allocated by kmalloc() to ksize() if it is allocated by\nSLUB allocator and size is larger than (I guess) PAGE_SIZE / 2.\n\nThe error of ksize() seems to be that it does not check if the allocation\nwas made by SLUB or the page allocator.\n\nReviewed-by: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nTested-by: Tetsuo Handa \u003cpenguin-kernel@I-love.SAKURA.ne.jp\u003e\nCc: Christoph Lameter \u003cclameter@sgi.com\u003e, Matt Mackall \u003cmpm@selenic.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "369b8f5a70402d9fe77006cd0044c8a3fcd08430", "tree": "7796820d04e7278b37e5dadeda65fe3579dd4ab2", "parents": [ "4670df831cb479ba57dd0fa0b8a9eb88cc7129be" ], "author": { "name": "Nick Piggin", "email": "npiggin@suse.de", "time": "Tue Dec 04 23:45:25 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Dec 05 09:21:20 2007 -0800" }, "message": "mm: fix XIP file writes\n\nWriting to XIP files at a non-page-aligned offset results in data corruption\nbecause the writes were always sent to the start of the page.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Christian Borntraeger \u003cborntraeger@de.ibm.com\u003e\nAcked-by: Carsten Otte \u003ccotte@de.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "f8fcc93319faa09272185af100fb24e71b02ab03", "tree": "5696f15acbe0d8ad6895d7eef7566e72bacf8abc", "parents": [ "4b01a0b1613beeb01e12c78feb69e98f0da0a69a" ], "author": { "name": "Tetsuo Handa", "email": "penguin-kernel@I-love.SAKURA.ne.jp", "time": "Tue Dec 04 23:45:08 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Dec 05 09:21:18 2007 -0800" }, "message": "Add EXPORT_SYMBOL(ksize);\n\nmm/slub.c exports ksize(), but mm/slob.c and mm/slab.c don\u0027t.\n\nIt\u0027s used by binfmt_flat, which can be built as a module.\n\nSigned-off-by: Tetsuo Handa \u003cpenguin-kernel@I-love.SAKURA.ne.jp\u003e\nCc: Christoph Lameter \u003cclameter@sgi.com\u003e\nCc: Matt Mackall \u003cmpm@selenic.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "4b01a0b1613beeb01e12c78feb69e98f0da0a69a", "tree": "d92ae6d43c8f3b18c8ae785dc322ad9e2e3fae36", "parents": [ "0c664f974269bb4c3d38ba900c91a9a5d4cee5b1" ], "author": { "name": "Denis Cheng", "email": "crquan@gmail.com", "time": "Tue Dec 04 23:45:07 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Dec 05 09:21:18 2007 -0800" }, "message": "mm/backing-dev.c: fix percpu_counter_destroy call bug in bdi_init\n\nthis call should use the array index j, not i. But with this approach, just\none int i is enough, int j is not needed.\n\nSigned-off-by: Denis Cheng \u003ccrquan@gmail.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "5a211a5deabcafdc764817d5b4510c767d317ddc", "tree": "d330ce692f43c1b02c84ff81284e6191d567e02f", "parents": [ "7cd94146cd504016315608e297219f9fb7b1413b" ], "author": { "name": "Eric Paris", "email": "eparis@redhat.com", "time": "Tue Dec 04 11:06:55 2007 -0500" }, "committer": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Thu Dec 06 00:25:30 2007 +1100" }, "message": "VM/Security: add security hook to do_brk\n\nGiven a specifically crafted binary do_brk() can be used to get low\npages available in userspace virtually memory and can thus be used to\ncircumvent the mmap_min_addr low memory protection. Add security checks\nin do_brk().\n\nSigned-off-by: Eric Paris \u003ceparis@redhat.com\u003e\nAcked-by: Alan Cox \u003calan@redhat.com\u003e\nSigned-off-by: James Morris \u003cjmorris@namei.org\u003e\n" }, { "commit": "7cd94146cd504016315608e297219f9fb7b1413b", "tree": "1d118d6af0a6d3efb9be66f7305827aee2ceffea", "parents": [ "8869477a49c3e99def1fcdadd6bbc407fea14b45" ], "author": { "name": "Eric Paris", "email": "eparis@redhat.com", "time": "Mon Nov 26 18:47:40 2007 -0500" }, "committer": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Thu Dec 06 00:25:10 2007 +1100" }, "message": "Security: round mmap hint address above mmap_min_addr\n\nIf mmap_min_addr is set and a process attempts to mmap (not fixed) with a\nnon-null hint address less than mmap_min_addr the mapping will fail the\nsecurity checks. Since this is just a hint address this patch will round\nsuch a hint address above mmap_min_addr.\n\ngcj was found to try to be very frugal with vm usage and give hint addresses\nin the 8k-32k range. Without this patch all such programs failed and with\nthe patch they happily get a higher address.\n\nThis patch is wrappad in CONFIG_SECURITY since mmap_min_addr doesn\u0027t exist\nwithout it and there would be no security check possible no matter what. So\nwe should not bother compiling in this rounding if it is just a waste of\ntime.\n\nSigned-off-by: Eric Paris \u003ceparis@redhat.com\u003e\nSigned-off-by: James Morris \u003cjmorris@namei.org\u003e\n" }, { "commit": "8869477a49c3e99def1fcdadd6bbc407fea14b45", "tree": "a3f77dcac695a12986715b119750f85f124179bb", "parents": [ "ab5a91a8364c3d6fc617abc47cc81d162c01d90a" ], "author": { "name": "Eric Paris", "email": "eparis@redhat.com", "time": "Mon Nov 26 18:47:26 2007 -0500" }, "committer": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Thu Dec 06 00:24:48 2007 +1100" }, "message": "security: protect from stack expantion into low vm addresses\n\nAdd security checks to make sure we are not attempting to expand the\nstack into memory protected by mmap_min_addr\n\nSigned-off-by: Eric Paris \u003ceparis@redhat.com\u003e\nSigned-off-by: James Morris \u003cjmorris@namei.org\u003e\n" }, { "commit": "80cbd911ca25535f6bb66bbcbb98950ec328eb40", "tree": "5856978e32c675393bc2cb97e3647fc91e27f3bb", "parents": [ "e1cca7e8d484390169777b423a7fe46c7021fec1" ], "author": { "name": "Matthew Wilcox", "email": "matthew@wil.cx", "time": "Thu Nov 29 12:05:13 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Nov 30 08:08:05 2007 -0800" }, "message": "Fix kmem_cache_free performance regression in slab\n\nThe database performance group have found that half the cycles spent\nin kmem_cache_free are spent in this one call to BUG_ON. Moving it\ninto the CONFIG_SLAB_DEBUG-only function cache_free_debugcheck() is a\nperformance win of almost 0.5% on their particular benchmark.\n\nThe call was added as part of commit ddc2e812d592457747c4367fb73edcaa8e1e49ff\nwith the comment that \"overhead should be minimal\". It may have been\nminimal at the time, but it isn\u0027t now.\n\n[ Quoth Pekka Enberg: \"I don\u0027t think the BUG_ON per se caused the\n performance regression but rather the virt_to_head_page() changes to\n virt_to_cache() that were added later.\" ]\n\nSigned-off-by: Matthew Wilcox \u003cwilly@linux.intel.com\u003e\nAcked-by: Pekka J Enberg \u003cpenberg@cs.helsinki.fi\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e0dc3a53def41efeabb3f39ad8e9f67e81ca1025", "tree": "f605744bf9998c062079c1369924e93a617ef42a", "parents": [ "164e217cec236f84718676543659181ea300a862" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Wed Nov 28 16:21:57 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Nov 29 09:24:54 2007 -0800" }, "message": "memory hotplug fix: fix section mismatch in vmammap_allock_block()\n\nFixes section mismatch below.\n\nWARNING: vmlinux.o(.text+0x946b5): Section mismatch: reference to .init.text:\u0027\n__alloc_bootmem_node (between \u0027vmemmap_alloc_block\u0027 and \u0027vmemmap_pgd_populate\u0027)\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Kamalesh Babulal \u003ckamalesh@linux.vnet.ibm.com\u003e\nCc: Andy Whitcroft \u003capw@shadowen.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "ba72cb8cb0cdc0a65b3abe9a387f1a26bfd49b8a", "tree": "c0617d342aba6525d7dbc9d607da754468385383", "parents": [ "ee592a5bd5180cc1ffaf5acd7bf1e91e0d854a08" ], "author": { "name": "Mel Gorman", "email": "mel@csn.ul.ie", "time": "Wed Nov 28 16:21:13 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Nov 29 09:24:51 2007 -0800" }, "message": "Fix boot problem with iSeries lacking hugepage support\n\nOrdinarily the size of a pageblock is determined at compile-time based on the\nhugepage size. On PPC64, the hugepage size is determined at runtime based on\nwhat is supported by the machine. With legacy machines such as iSeries that\ndo not support hugepages, HPAGE_SHIFT is 0. This results in pageblock_order\nbeing set to -PAGE_SHIFT and a crash results shortly afterwards.\n\nThis patch adds a function to select a sensible value for pageblock order by\ndefault when HUGETLB_PAGE_SIZE_VARIABLE is set. It checks that HPAGE_SHIFT\nis a sensible value before using the hugepage size; if it is not MAX_ORDER-1\nis used.\n\nThis is a fix for 2.6.24.\n\nCredit goes to Stephen Rothwell for identifying the bug and testing candidate\npatches. Additional credit goes to Andy Whitcroft for spotting a problem\nwith respects to IA-64 before releasing. Additional credit to David Gibson\nfor testing with the libhugetlbfs test suite.\n\nSigned-off-by: Mel Gorman \u003cmel@csn.ul.ie\u003e\nTested-by: Stephen Rothwell \u003csfr@canb.auug.org.au\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nAcked-by: Paul Mackerras \u003cpaulus@samba.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "09f345da758fca1222b0971b65b2fddbdf78bb83", "tree": "1a316a3a157a080eba3b98f25b69e0eb243ac6e9", "parents": [ "e84e2e132c9c66d8498e7710d4ea532d1feaaac5" ], "author": { "name": "Hugh Dickins", "email": "hugh@veritas.com", "time": "Wed Nov 28 18:57:12 2007 +0000" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Nov 28 11:04:28 2007 -0800" }, "message": "prep_zero_page: remove bogus BUG_ON\n\n2.6.11 gave __GFP_ZERO\u0027s prep_zero_page a bogus \"highmem may have to wait\"\nassertion. Presumably added under the misconception that clear_highpage\nuses nonatomic kmap; but then and now it uses kmap_atomic, so no problem.\n\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e84e2e132c9c66d8498e7710d4ea532d1feaaac5", "tree": "f754be23d6b37af04d203eb6e34ac7cdb5f84a4b", "parents": [ "9bfb52ad716e74785b2402b7ea17f30e0344b8e8" ], "author": { "name": "Hugh Dickins", "email": "hugh@veritas.com", "time": "Wed Nov 28 18:55:10 2007 +0000" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Nov 28 11:04:28 2007 -0800" }, "message": "tmpfs: restore missing clear_highpage\n\ntmpfs was misconverted to __GFP_ZERO in 2.6.11. There\u0027s an unusual case in\nwhich shmem_getpage receives the page from its caller instead of allocating.\nWe must cover this case by clear_highpage before SetPageUptodate, as before.\n\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "ce7e9fae8db07af4080e868f4588f8f095f803dc", "tree": "000a6cc755ee35ef3cfc0795c13ed500dc5457de", "parents": [ "b8e7a54cd06b0b0174029ef3a7f5a1415a2c28f2" ], "author": { "name": "Christian Borntraeger", "email": "borntraeger@de.ibm.com", "time": "Tue Nov 20 11:13:36 2007 +0100" }, "committer": { "name": "Martin Schwidefsky", "email": "schwidefsky@de.ibm.com", "time": "Tue Nov 20 11:13:46 2007 +0100" }, "message": "[S390] Optimize storage key handling for anonymous pages\n\npage_mkclean used to call page_clear_dirty for every given page. This\nis different to all other architectures, where the dirty bit in the\nPTEs is only resetted, if page_mapping() returns a non-NULL pointer.\nWe can move the page_test_dirty/page_clear_dirty sequence into the\n2nd if to avoid unnecessary iske/sske sequences, which are expensive.\n\nThis change also helps kvm for s390 as the host must transfer the\ndirty bit into the guest status bits. By moving the page_clear_dirty\noperation into the 2nd if, the vm will only call page_clear_dirty\nfor pages where it walks the mapping anyway. There it calls\nptep_clear_flush for writable ptes, so we can transfer the dirty bit\nto the guest.\n\nSigned-off-by: Christian Borntraeger \u003cborntraeger@de.ibm.com\u003e\nSigned-off-by: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\n" }, { "commit": "8c0863403f109a43d7000b4646da4818220d501f", "tree": "925a87846bda5a0f427cbd19b65c9ea0375ebdd3", "parents": [ "adea27f4ba29200c989194a3f6214b652d009e83" ], "author": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Nov 15 16:41:52 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Nov 15 16:41:52 2007 -0800" }, "message": "dirty page balancing: Get rid of broken unmapped_ratio logic\n\nThis code harks back to the days when we didn\u0027t count dirty mapped\npages, which led us to try to balance the number of dirty unmapped pages\nby how much unmapped memory there was in the system.\n\nThat makes no sense any more, since now the dirty counts include the\nmapped pages. Not to mention that the math doesn\u0027t work with HIGHMEM\nmachines anyway, and causes the unmapped_ratio to potentially turn\nnegative (which we do catch thanks to clamping it at a minimum value,\nbut I mention that as an indication of how broken the code is).\n\nThe code also was written at a time when the default dirty ratio was\nmuch larger, and the unmapped_ratio logic effectively capped that large\ndirty ratio a bit. Again, we\u0027ve since lowered the dirty ratio rather\naggressively, further lessening the point of that code.\n\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d32ddd8f20e7d7a49c45c337c2079be03c77dc41", "tree": "a56dae80e045a8928bb8da74e6edb3874d297ee2", "parents": [ "a3474224e6a01924be40a8255636ea5522c1023a" ], "author": { "name": "Nick Piggin", "email": "npiggin@suse.de", "time": "Thu Nov 15 12:32:04 2007 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Nov 15 08:36:27 2007 -0800" }, "message": "slob: fix memory corruption\n\nPreviously, it would be possible for prev-\u003enext to point to\n\u0026free_slob_pages, and thus we would try to move a list onto itself, and\nbad things would happen.\n\nIt seems a bit hairy to be doing list operations with the list marker as\nan entry, rather than a head, but...\n\nthis resolves the following crash:\n\n http://bugzilla.kernel.org/show_bug.cgi?id\u003d9379\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nAcked-by: Matt Mackall \u003cmpm@selenic.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "20a1022d4ac5c53f0956006fd9e30cf4846d5e58", "tree": "460b50d2e58b23c55d5984e1a530ee76a312dda9", "parents": [ "9c8d6381dc107dbc2bfdbfdcaefe0d42e5b5b362" ], "author": { "name": "Balbir Singh", "email": "balbir@linux.vnet.ibm.com", "time": "Wed Nov 14 17:00:33 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Nov 14 18:45:44 2007 -0800" }, "message": "Swap delay accounting, include lock_page() delays\n\nThe delay incurred in lock_page() should also be accounted in swap delay\naccounting\n\nReported-by: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nSigned-off-by: Balbir Singh \u003cbalbir@linux.vnet.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "42614fcde7bfdcbe43a7b17035c167dfebc354dd", "tree": "1fa22329eb136a2bc868c81de99a6778a1c2b917", "parents": [ "579d6d93ca531fba3e29ddf39fefe5184012068b" ], "author": { "name": "Randy Dunlap", "email": "randy.dunlap@oracle.com", "time": "Wed Nov 14 17:00:12 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Nov 14 18:45:42 2007 -0800" }, "message": "vmstat: fix section mismatch warning\n\nMark start_cpu_timer() as __cpuinit instead of __devinit.\nFixes this section warning:\n\nWARNING: vmlinux.o(.text+0x60e53): Section mismatch: reference to .init.text:start_cpu_timer (between \u0027vmstat_cpuup_callback\u0027 and \u0027vmstat_show\u0027)\n\nSigned-off-by: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nAcked-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "be21f0ab0d8f10c90265066603a8d95b6037a6fa", "tree": "5aeb6f2a2e62e36a8410ef725ac76fa69ab6a182", "parents": [ "d5cd97872dca9b79c31224ca014bcea7ca01f5f1" ], "author": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Wed Nov 14 17:00:01 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Nov 14 18:45:41 2007 -0800" }, "message": "fix mm/util.c:krealloc()\n\nCommit ef8b4520bd9f8294ffce9abd6158085bde5dc902 added one NULL check for\n\"p\" in krealloc(), but that doesn\u0027t seem to be enough since there\ndoesn\u0027t seem to be any guarantee that memcpy(ret, NULL, 0) works\n(spotted by the Coverity checker).\n\nFor making it clearer what happens this patch also removes the pointless\nmin().\n\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nAcked-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "45c682a68a87251d9a01383ce076ab21ee09812e", "tree": "d9fa6a02263c50ef97e1c525b91b29b6aedf9e40", "parents": [ "8cde045c7ee97573be6ce495b8f7c918182a2c7a" ], "author": { "name": "Ken Chen", "email": "kenchen@google.com", "time": "Wed Nov 14 16:59:44 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Nov 14 18:45:40 2007 -0800" }, "message": "hugetlb: fix i_blocks accounting\n\nFor administrative purpose, we want to query actual block usage for\nhugetlbfs file via fstat. Currently, hugetlbfs always return 0. Fix that\nup since kernel already has all the information to track it properly.\n\nSigned-off-by: Ken Chen \u003ckenchen@google.com\u003e\nAcked-by: Adam Litke \u003cagl@us.ibm.com\u003e\nCc: Badari Pulavarty \u003cpbadari@us.ibm.com\u003e\nCc: David Gibson \u003cdavid@gibson.dropbear.id.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "8cde045c7ee97573be6ce495b8f7c918182a2c7a", "tree": "3370af8536058f1d91e793f150e10b4099d68be5", "parents": [ "90d8b7e6129e8f4e5b3bc1a2cfbe585372ce8646" ], "author": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Wed Nov 14 16:59:43 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Nov 14 18:45:40 2007 -0800" }, "message": "mm/hugetlb.c: make a function static\n\nreturn_unused_surplus_pages() can become static.\n\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nAcked-by: Adam Litke \u003cagl@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "90d8b7e6129e8f4e5b3bc1a2cfbe585372ce8646", "tree": "7a078249e1a468dc3ec5973c14f8f6a95cb0620f", "parents": [ "9a119c056dc2a9970901954a6d561d50a95e528d" ], "author": { "name": "Adam Litke", "email": "agl@us.ibm.com", "time": "Wed Nov 14 16:59:42 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Nov 14 18:45:40 2007 -0800" }, "message": "hugetlb: enforce quotas during reservation for shared mappings\n\nWhen a MAP_SHARED mmap of a hugetlbfs file succeeds, huge pages are reserved\nto guarantee no problems will occur later when instantiating pages. If quotas\nare in force, page instantiation could fail due to a race with another process\nor an oversized (but approved) shared mapping.\n\nTo prevent these scenarios, debit the quota for the full reservation amount up\nfront and credit the unused quota when the reservation is released.\n\nSigned-off-by: Adam Litke \u003cagl@us.ibm.com\u003e\nCc: Ken Chen \u003ckenchen@google.com\u003e\nCc: Andy Whitcroft \u003capw@shadowen.org\u003e\nCc: Dave Hansen \u003chaveblue@us.ibm.com\u003e\nCc: David Gibson \u003chermes@gibson.dropbear.id.au\u003e\nCc: William Lee Irwin III \u003cwli@holomorphy.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "9a119c056dc2a9970901954a6d561d50a95e528d", "tree": "22ca1f97f18f8a788757825bd4623d52d97a5abb", "parents": [ "2fc39cec6a9b5b41727d3386b780b69422a15152" ], "author": { "name": "Adam Litke", "email": "agl@us.ibm.com", "time": "Wed Nov 14 16:59:41 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Nov 14 18:45:40 2007 -0800" }, "message": "hugetlb: allow bulk updating in hugetlb_*_quota()\n\nAdd a second parameter \u0027delta\u0027 to hugetlb_get_quota and hugetlb_put_quota to\nallow bulk updating of the sbinfo-\u003efree_blocks counter. This will be used by\nthe next patch in the series.\n\nSigned-off-by: Adam Litke \u003cagl@us.ibm.com\u003e\nCc: Ken Chen \u003ckenchen@google.com\u003e\nCc: Andy Whitcroft \u003capw@shadowen.org\u003e\nCc: Dave Hansen \u003chaveblue@us.ibm.com\u003e\nCc: David Gibson \u003chermes@gibson.dropbear.id.au\u003e\nCc: William Lee Irwin III \u003cwli@holomorphy.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "2fc39cec6a9b5b41727d3386b780b69422a15152", "tree": "4b01dcef394a109ae3ff83189f7386ff3cdb3f61", "parents": [ "c79fb75e5a514a5a35f22c229042aa29f4237e3a" ], "author": { "name": "Adam Litke", "email": "agl@us.ibm.com", "time": "Wed Nov 14 16:59:39 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Nov 14 18:45:40 2007 -0800" }, "message": "hugetlb: debit quota in alloc_huge_page\n\nNow that quota is credited by free_huge_page(), calls to hugetlb_get_quota()\nseem out of place. The alloc/free API is unbalanced because we handle the\nhugetlb_put_quota() but expect the caller to open-code hugetlb_get_quota().\nMove the get inside alloc_huge_page to clean up this disparity.\n\nThis patch has been kept apart from the previous patch because of the somewhat\ndodgy ERR_PTR() use herein. Moving the quota logic means that\nalloc_huge_page() has two failure modes. Quota failure must result in a\nSIGBUS while a standard allocation failure is OOM. Unfortunately, ERR_PTR()\ndoesn\u0027t like the small positive errnos we have in VM_FAULT_* so they must be\nnegated before they are used.\n\nDoes anyone take issue with the way I am using PTR_ERR. If so, what are your\nthoughts on how to clean this up (without needing an if,else if,else block at\neach alloc_huge_page() callsite)?\n\nSigned-off-by: Adam Litke \u003cagl@us.ibm.com\u003e\nCc: Ken Chen \u003ckenchen@google.com\u003e\nCc: Andy Whitcroft \u003capw@shadowen.org\u003e\nCc: Dave Hansen \u003chaveblue@us.ibm.com\u003e\nCc: David Gibson \u003chermes@gibson.dropbear.id.au\u003e\nCc: William Lee Irwin III \u003cwli@holomorphy.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c79fb75e5a514a5a35f22c229042aa29f4237e3a", "tree": "012e5610e814ed938628af84ffa7c4775db113e2", "parents": [ "348ea204cc23cda35faf962414b674c57da647d7" ], "author": { "name": "Adam Litke", "email": "agl@us.ibm.com", "time": "Wed Nov 14 16:59:38 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Nov 14 18:45:40 2007 -0800" }, "message": "hugetlb: fix quota management for private mappings\n\nThe hugetlbfs quota management system was never taught to handle MAP_PRIVATE\nmappings when that support was added. Currently, quota is debited at page\ninstantiation and credited at file truncation. This approach works correctly\nfor shared pages but is incomplete for private pages. In addition to\nhugetlb_no_page(), private pages can be instantiated by hugetlb_cow(); but\nthis function does not respect quotas.\n\nPrivate huge pages are treated very much like normal, anonymous pages. They\nare not \"backed\" by the hugetlbfs file and are not stored in the mapping\u0027s\nradix tree. This means that private pages are invisible to\ntruncate_hugepages() so that function will not credit the quota.\n\nThis patch (based on a prototype provided by Ken Chen) moves quota crediting\nfor all pages into free_huge_page(). page-\u003eprivate is used to store a pointer\nto the mapping to which this page belongs. This is used to credit quota on\nthe appropriate hugetlbfs instance.\n\nSigned-off-by: Adam Litke \u003cagl@us.ibm.com\u003e\nCc: Ken Chen \u003ckenchen@google.com\u003e\nCc: Ken Chen \u003ckenchen@google.com\u003e\nCc: Andy Whitcroft \u003capw@shadowen.org\u003e\nCc: Dave Hansen \u003chaveblue@us.ibm.com\u003e\nCc: David Gibson \u003chermes@gibson.dropbear.id.au\u003e\nCc: William Lee Irwin III \u003cwli@holomorphy.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "348ea204cc23cda35faf962414b674c57da647d7", "tree": "fb27a17c13ca745bd3f0fb15d0d967bc5d5bc088", "parents": [ "6c55be8b962f1bdc592d579e81fc27b11ea53dfc" ], "author": { "name": "Adam Litke", "email": "agl@us.ibm.com", "time": "Wed Nov 14 16:59:37 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Nov 14 18:45:39 2007 -0800" }, "message": "hugetlb: split alloc_huge_page into private and shared components\n\nHugetlbfs implements a quota system which can limit the amount of memory that\ncan be used by the filesystem. Before allocating a new huge page for a file,\nthe quota is checked and debited. The quota is then credited when truncating\nthe file. I found a few bugs in the code for both MAP_PRIVATE and MAP_SHARED\nmappings. Before detailing the problems and my proposed solutions, we should\nagree on a definition of quotas that properly addresses both private and\nshared pages. Since the purpose of quotas is to limit total memory\nconsumption on a per-filesystem basis, I argue that all pages allocated by the\nfs (private and shared) should be charged against quota.\n\nPrivate Mappings\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\n\nThe current code will debit quota for private pages sometimes, but will never\ncredit it. At a minimum, this causes a leak in the quota accounting which\nrenders the accounting essentially useless as it is. Shared pages have a one\nto one mapping with a hugetlbfs file and are easy to account by debiting on\nallocation and crediting on truncate. Private pages are anonymous in nature\nand have a many to one relationship with their hugetlbfs files (due to copy on\nwrite). Because private pages are not indexed by the mapping\u0027s radix tree,\nthier quota cannot be credited at file truncation time. Crediting must be\ndone when the page is unmapped and freed.\n\nShared Pages\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\n\nI discovered an issue concerning the interaction between the MAP_SHARED\nreservation system and quotas. Since quota is not checked until page\ninstantiation, an over-quota mmap/reservation will initially succeed. When\ninstantiating the first over-quota page, the program will receive SIGBUS.\nThis is inconsistent since the reservation is supposed to be a guarantee. The\nsolution is to debit the full amount of quota at reservation time and credit\nthe unused portion when the reservation is released.\n\nThis patch series brings quotas back in line by making the following\nmodifications:\n * Private pages\n - Debit quota in alloc_huge_page()\n - Credit quota in free_huge_page()\n * Shared pages\n - Debit quota for entire reservation at mmap time\n - Credit quota for instantiated pages in free_huge_page()\n - Credit quota for unused reservation at munmap time\n\nThis patch:\n\nThe shared page reservation and dynamic pool resizing features have made the\nallocation of private vs. shared huge pages quite different. By splitting\nout the private/shared-specific portions of the process into their own\nfunctions, readability is greatly improved. alloc_huge_page now calls the\nproper helper and performs common operations.\n\n[akpm@linux-foundation.org: coding-style cleanups]\nSigned-off-by: Adam Litke \u003cagl@us.ibm.com\u003e\nCc: Ken Chen \u003ckenchen@google.com\u003e\nCc: Andy Whitcroft \u003capw@shadowen.org\u003e\nCc: Dave Hansen \u003chaveblue@us.ibm.com\u003e\nCc: David Gibson \u003chermes@gibson.dropbear.id.au\u003e\nCc: William Lee Irwin III \u003cwli@holomorphy.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "5b23dbe8173c212d6a326e35347b038705603d39", "tree": "a971d3cbab8911e7cbd5bec66f50d093f3f45976", "parents": [ "19cd7537bdae6685c31677a01e08850612ba87f6" ], "author": { "name": "Adam Litke", "email": "agl@us.ibm.com", "time": "Wed Nov 14 16:59:33 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Nov 14 18:45:39 2007 -0800" }, "message": "hugetlb: follow_hugetlb_page() for write access\n\nWhen calling get_user_pages(), a write flag is passed in by the caller to\nindicate if write access is required on the faulted-in pages. Currently,\nfollow_hugetlb_page() ignores this flag and always faults pages for\nread-only access. This can cause data corruption because a device driver\nthat calls get_user_pages() with write set will not expect COW faults to\noccur on the returned pages.\n\nThis patch passes the write flag down to follow_hugetlb_page() and makes\nsure hugetlb_fault() is called with the right write_access parameter.\n\n[ezk@cs.sunysb.edu: build fix]\nSigned-off-by: Adam Litke \u003cagl@us.ibm.com\u003e\nReviewed-by: Ken Chen \u003ckenchen@google.com\u003e\nCc: David Gibson \u003chermes@gibson.dropbear.id.au\u003e\nCc: William Lee Irwin III \u003cwli@holomorphy.com\u003e\nCc: Badari Pulavarty \u003cpbadari@us.ibm.com\u003e\nSigned-off-by: Erez Zadok \u003cezk@cs.sunysb.edu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "887c3cb18865a4f9e0786e5a5b3ef47ff469b956", "tree": "553024b7cfb9c06e71aafefc218165ecc015bd10", "parents": [ "5fce25a9df4865bdd5e3dc4853b269dc1677a02a" ], "author": { "name": "Yasunori Goto", "email": "y-goto@jp.fujitsu.com", "time": "Wed Nov 14 16:59:20 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Nov 14 18:45:39 2007 -0800" }, "message": "Add IORESOUCE_BUSY flag for System RAM\n\ni386 and x86-64 registers System RAM as IORESOURCE_MEM | IORESOURCE_BUSY.\n\nBut ia64 registers it as IORESOURCE_MEM only.\nIn addition, memory hotplug code registers new memory as IORESOURCE_MEM too.\n\nThis difference causes a failure of memory unplug of x86-64. This patch\nfixes it.\n\nThis patch adds IORESOURCE_BUSY to avoid potential overlap mapping by PCI\ndevice.\n\nSigned-off-by: Yasunori Goto \u003cy-goto@jp.fujitsu.com\u003e\nSigned-off-by: Badari Pulavarty \u003cpbadari@us.ibm.com\u003e\nCc: Luck, Tony\" \u003ctony.luck@intel.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "5fce25a9df4865bdd5e3dc4853b269dc1677a02a", "tree": "207fe2bf726bac89e402eb738b9548cfc7cae2f5", "parents": [ "546040dc4872f807d40b69bed86605636082564c" ], "author": { "name": "Peter Zijlstra", "email": "peterz@infradead.org", "time": "Wed Nov 14 16:59:15 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Nov 14 18:45:38 2007 -0800" }, "message": "mm: speed up writeback ramp-up on clean systems\n\nWe allow violation of bdi limits if there is a lot of room on the system.\nOnce we hit half the total limit we start enforcing bdi limits and bdi\nramp-up should happen. Doing it this way avoids many small writeouts on an\notherwise idle system and should also speed up the ramp-up.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nReviewed-by: Fengguang Wu \u003cwfg@mail.ustc.edu.cn\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "dbc0e4cefd003834440fe7ac5464616c5235cb94", "tree": "8c64dd88783239a360b937315b3109276b7f193a", "parents": [ "3ad33b2436b545cbe8b28e53f3710432cad457ab" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Wed Nov 14 16:59:12 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Nov 14 18:45:38 2007 -0800" }, "message": "memory hotremove: unset migrate type \"ISOLATE\" after removal\n\nWe should unset migrate type \"ISOLATE\" when we successfully removed memory.\n But current code has BUG and cannot works well.\n\nThis patch also includes bugfix? to change get_pageblock_flags to\nget_pageblock_migratetype().\n\nThanks to Badari Pulavarty for finding this.\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nAcked-by: Badari Pulavarty \u003cpbadari@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3ad33b2436b545cbe8b28e53f3710432cad457ab", "tree": "581808f90a08838ee27d76cc24812c7093c216a9", "parents": [ "e1a1c997afe907e6ec4799e4be0f38cffd8b418c" ], "author": { "name": "Lee Schermerhorn", "email": "Lee.Schermerhorn@hp.com", "time": "Wed Nov 14 16:59:10 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Nov 14 18:45:38 2007 -0800" }, "message": "Migration: find correct vma in new_vma_page()\n\nWe hit the BUG_ON() in mm/rmap.c:vma_address() when trying to migrate via\nmbind(MPOL_MF_MOVE) a non-anon region that spans multiple vmas. For\nanon-regions, we just fail to migrate any pages beyond the 1st vma in the\nrange.\n\nThis occurs because do_mbind() collects a list of pages to migrate by\ncalling check_range(). check_range() walks the task\u0027s mm, spanning vmas as\nnecessary, to collect the migratable pages into a list. Then, do_mbind()\ncalls migrate_pages() passing the list of pages, a function to allocate new\npages based on vma policy [new_vma_page()], and a pointer to the first vma\nof the range.\n\nFor each page in the list, new_vma_page() calls page_address_in_vma()\npassing the page and the vma [first in range] to obtain the address to get\nfor alloc_page_vma(). The page address is needed to get interleaving\npolicy correct. If the pages in the list come from multiple vmas,\neventually, new_page_address() will pass that page to page_address_in_vma()\nwith the incorrect vma. For !PageAnon pages, this will result in a bug\ncheck in rmap.c:vma_address(). For anon pages, vma_address() will just\nreturn EFAULT and fail the migration.\n\nThis patch modifies new_vma_page() to check the return value from\npage_address_in_vma(). If the return value is EFAULT, new_vma_page()\nsearchs forward via vm_next for the vma that maps the page--i.e., that does\nnot return EFAULT. This assumes that the pages in the list handed to\nmigrate_pages() is in address order. This is currently case. The patch\ndocuments this assumption in a new comment block for new_vma_page().\n\nIf new_vma_page() cannot locate the vma mapping the page in a forward\nsearch in the mm, it will pass a NULL vma to alloc_page_vma(). This will\nresult in the allocation using the task policy, if any, else system default\npolicy. This situation is unlikely, but the patch documents this behavior\nwith a comment.\n\nNote, this patch results in restarting from the first vma in a multi-vma\nrange each time new_vma_page() is called. If this is not acceptable, we\ncan make the vma argument a pointer, both in new_vma_page() and it\u0027s caller\nunmap_and_move() so that the value held by the loop in migrate_pages()\nalways passes down the last vma in which a page was found. This will\nrequire changes to all new_page_t functions passed to migrate_pages(). Is\nthis necessary?\n\nFor this patch to work, we can\u0027t bug check in vma_address() for pages\noutside the argument vma. This patch removes the BUG_ON(). All other\ncallers [besides new_vma_page()] already check the return status.\n\nTested on x86_64, 4 node NUMA platform.\n\nSigned-off-by: Lee Schermerhorn \u003clee.schermerhorn@hp.com\u003e\nAcked-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "cc550defe9790b495c96fafabc5a6528dc586f24", "tree": "e88689d55d9897c96287a6e92d0123ac8d59c29b", "parents": [ "e9b5a495dc23f58ecaa9517f1ff4dd9ac724935f" ], "author": { "name": "Akinobu Mita", "email": "akinobu.mita@gmail.com", "time": "Wed Nov 14 16:58:35 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Nov 14 18:45:36 2007 -0800" }, "message": "slab: fix typo in allocation failure handling\n\nThis patch fixes wrong array index in allocation failure handling.\n\nCc: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nAcked-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Akinobu Mita \u003cakinobu.mita@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": "44048d700bcbfaf4bcca6e2e0a73d89d01ec0878", "tree": "975427ee367023b6e3a254519d5e5fdced2c0969", "parents": [ "e6a5c27f3b0fef72e528fc35e343af4b2db790ff" ], "author": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Nov 12 14:14:44 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Nov 12 14:14:44 2007 -0800" }, "message": "Revert \"Bias the placement of kernel pages at lower PFNs\"\n\nThis reverts commit 5adc5be7cd1bcef6bb64f5255d2a33f20a3cf5be.\n\nAlexey Dobriyan reports that it causes huge slowdowns under some loads,\nin his case a \"mkfs.ext2\" on a 30G partition. With the placement bias,\nthe mkfs took over four minutes, with it reverted it\u0027s back to about ten\nseconds for Alexey.\n\nReported-and-tested-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: Mel Gorman \u003cmel@csn.ul.ie\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "efe44183f6bab5b8acb6a6182d95274978c8abb1", "tree": "86a1c11218644190c30a7c03931e5ca2c6e2e12e", "parents": [ "00ec99da43a7c2aed46c6595aa271b84bb1b1462" ], "author": { "name": "Denis Cheng", "email": "crquan@gmail.com", "time": "Tue Nov 13 00:49:42 2007 +0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Nov 12 10:32:29 2007 -0800" }, "message": "SLUB: killed the unused \"end\" variable\n\nSince the macro \"for_each_object\" introduced, the \"end\" variable becomes unused anymore.\n\nSigned-off-by: Denis Cheng \u003ccrquan@gmail.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "221d46841b931d0e6b11e6251e482f2afe3974dd", "tree": "feb33999f71a84003f4ac752300c81f47f9e272f", "parents": [ "4d20826ffb6fa80c71b85d2cb858ae400a59a4d5", "633872b980f55f40a5e7de374f26970e41e2137b" ], "author": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Nov 05 11:39:00 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Nov 05 11:39:00 2007 -0800" }, "message": "Merge branch \u0027master\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-lguest\n\n* \u0027master\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-lguest:\n lguest: tidy up documentation\n kernel/futex.c: make 3 functions static\n unexport access_process_vm\n lguest: make async_hcall() static\n" }, { "commit": "05aa345034de6ae9c77fb93f6a796013641d57d5", "tree": "3522f909f91e14b86e8dc0cedcb8e17bc0901bbe", "parents": [ "aac9e28d2f3d3c1eacc4114d685864a2a6423b80" ], "author": { "name": "Christoph Lameter", "email": "clameter@sgi.com", "time": "Mon Nov 05 11:31:58 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Nov 05 11:37:12 2007 -0800" }, "message": "SLUB: Fix memory leak by not reusing cpu_slab\n\nFix the memory leak that may occur when we attempt to reuse a cpu_slab\nthat was allocated while we reenabled interrupts in order to be able to\ngrow a slab cache.\n\nThe per cpu freelist may contain objects and in that situation we may\noverwrite the per cpu freelist pointer loosing objects. This only\noccurs if we find that the concurrently allocated slab fits our\nallocation needs.\n\nIf we simply always deactivate the slab then the freelist will be\nproperly reintegrated and the memory leak will go away.\n\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nAcked-by: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "02c3530da6b926b31f89ba589da72eca49557edd", "tree": "51e2e041fb2872819efc214b3818946be57c17c5", "parents": [ "9b56fdb458b014bdda974b43a3e59721032898bb" ], "author": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Fri Nov 02 16:43:28 2007 +0100" }, "committer": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Mon Nov 05 21:53:39 2007 +1100" }, "message": "unexport access_process_vm\n\nThis patch removes the no longer used EXPORT_SYMBOL_GPL(access_process_vm).\n\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n" }, { "commit": "5307cc1aa53850f017c8053db034cf950b670ac9", "tree": "6fd2ff3fe382ba1aac5e8b6c703268200a80ed40", "parents": [ "bb374b7b938f73666c403b201b3dd48ec9fe118a" ], "author": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 31 09:19:46 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 31 09:19:46 2007 -0700" }, "message": "Remove broken ptrace() special-case code from file mapping\n\nThe kernel has for random historical reasons allowed ptrace() accesses\nto access (and insert) pages into the page cache above the size of the\nfile.\n\nHowever, Nick broke that by mistake when doing the new fault handling in\ncommit 54cb8821de07f2ffcd28c380ce9b93d5784b40d7 (\"mm: merge populate and\nnopage into fault (fixes nonlinear)\". The breakage caused a hang with\ngdb when trying to access the invalid page.\n\nThe ptrace \"feature\" really isn\u0027t worth resurrecting, since it really is\nwrong both from a portability _and_ from an internal page cache validity\nstandpoint. So this removes those old broken remnants, and fixes the\nptrace() hang in the process.\n\nNoticed and bisected by Duane Griffin, who also supplied a test-case\n(quoth Nick: \"Well that\u0027s probably the best bug report I\u0027ve ever had,\nthanks Duane!\").\n\nCc: Duane Griffin \u003cduaneg@dghda.com\u003e\nAcked-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "bdb76ef5a4bc8676a81034a443f1eda450b4babb", "tree": "b4ec8736e6d4bed26f96c94d5c7c8eec0896fcd0", "parents": [ "e58b7dab272ecee09cd7bafb89d6b224cd17bbe3" ], "author": { "name": "Zach Brown", "email": "zach.brown@oracle.com", "time": "Tue Oct 30 11:45:46 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Oct 30 12:14:06 2007 -0700" }, "message": "dio: fix cache invalidation after sync writes\n\nCommit commit 65b8291c4000e5f38fc94fb2ca0cb7e8683c8a1b (\"dio: invalidate\nclean pages before dio write\") introduced a bug which stopped dio from\never invalidating the page cache after writes. It still invalidated it\nbefore writes so most users were fine.\n\nKarl Schendel reported ( http://lkml.org/lkml/2007/10/26/481 ) hitting\nthis bug when he had a buffered reader immediately reading file data\nafter an O_DIRECT wirter had written the data. The kernel issued\nread-ahead beyond the position of the reader which overlapped with the\nO_DIRECT writer. The failure to invalidate after writes caused the\nreader to see stale data from the read-ahead.\n\nThe following patch is originally from Karl. The following commentary\nis his:\n\n\tThe below 3rd try takes on your suggestion of just invalidating\n\tno matter what the retval from the direct_IO call. I ran it\n\tthru the test-case several times and it has worked every time.\n\tThe post-invalidate is probably still too early for async-directio,\n\tbut I don\u0027t have a testcase for that; just sync. And, this\n\twon\u0027t be any worse in the async case.\n\nI added a test to the aio-dio-regress repository which mimics Karl\u0027s IO\npattern. It verifed the bad behaviour and that the patch fixed it. I\nagree with Karl, this still doesn\u0027t help the case where a buffered\nreader follows an AIO O_DIRECT writer. That will require a bit more\nwork.\n\nThis gives up on the idea of returning EIO to indicate to userspace that\nstale data remains if the invalidation failed.\n\nSigned-off-by: Zach Brown \u003czach.brown@oracle.com\u003e\nCc: Karl Schendel \u003ckschendel@datallegro.com\u003e\nCc: Benjamin LaHaise \u003cbcrl@kvack.org\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nCc: Leonid Ananiev \u003cleonid.i.ananiev@linux.intel.com\u003e\nCc: Chris Mason \u003cchris.mason@oracle.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "487e9bf25cbae11b131d6a14bdbb3a6a77380837", "tree": "0b6666750274aadd22b29b1282aa779831976ca1", "parents": [ "8bca44bbd39007065cc6a4e3a50201475629a6cf" ], "author": { "name": "Hugh Dickins", "email": "hugh@veritas.com", "time": "Mon Oct 29 14:37:20 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Oct 30 08:06:55 2007 -0700" }, "message": "fix tmpfs BUG and AOP_WRITEPAGE_ACTIVATE\n\nIt\u0027s possible to provoke unionfs (not yet in mainline, though in mm and\nsome distros) to hit shmem_writepage\u0027s BUG_ON(page_mapped(page)). I expect\nit\u0027s possible to provoke the 2.6.23 ecryptfs in the same way (but the\n2.6.24 ecryptfs no longer calls lower level\u0027s -\u003ewritepage).\n\nThis came to light with the recent find that AOP_WRITEPAGE_ACTIVATE could\nleak from tmpfs via write_cache_pages and unionfs to userspace. There\u0027s\nalready a fix (e423003028183df54f039dfda8b58c49e78c89d7 - writeback: don\u0027t\npropagate AOP_WRITEPAGE_ACTIVATE) in the tree for that, and it\u0027s okay so\nfar as it goes; but insufficient because it doesn\u0027t address the underlying\nissue, that shmem_writepage expects to be called only by vmscan (relying on\nbacking_dev_info capabilities to prevent the normal writeback path from\never approaching it).\n\nThat\u0027s an increasingly fragile assumption, and ramdisk_writepage (the other\nsource of AOP_WRITEPAGE_ACTIVATEs) is already careful to check\nwbc-\u003efor_reclaim before returning it. Make the same check in\nshmem_writepage, thereby sidestepping the page_mapped BUG also.\n\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nCc: Erez Zadok \u003cezk@cs.sunysb.edu\u003e\nCc: \u003cstable@kernel.org\u003e\nReviewed-by: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "8bca44bbd39007065cc6a4e3a50201475629a6cf", "tree": "ce2735c05a2ae18965505014db3a4103d75cb2dc", "parents": [ "4138f08d1c2783a28df2af6ed81aa180462ec374" ], "author": { "name": "Glauber de Oliveira Costa", "email": "gcosta@redhat.com", "time": "Mon Oct 29 14:37:19 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Oct 30 08:06:55 2007 -0700" }, "message": "mm/sparse-vmemmap.c: make sure init_mm is included\n\nmm/sparse-vmemmap.c uses init_mm in some places. However, it is not\npresent in any of the headers currently included in the file.\n\ninit_mm is defined as extern in sched.h, so we add it to the headers list\n\nUp to now, this problem was masked by the fact that functions like\nset_pte_at() and pmd_populate_kernel() are usually macros that expand to\nsimpler variants that does not use the first parameter at all.\n\nSigned-off-by: Glauber de Oliveira Costa \u003cgcosta@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "6a22c57b8d2a62dea7280a6b2ac807a539ef0716", "tree": "8a1da0c5de1fa8c895bd1ac052e99042afa9a454", "parents": [ "3529a233421fc43fa7bfdf7a4317daf28348a23d" ], "author": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Oct 29 11:36:04 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Oct 29 14:05:37 2007 -0700" }, "message": "Revert \"x86_64: allocate sparsemem memmap above 4G\"\n\nThis reverts commit 2e1c49db4c640b35df13889b86b9d62215ade4b6.\n\nFirst off, testing in Fedora has shown it to cause boot failures,\nbisected down by Martin Ebourne, and reported by Dave Jobes. So the\ncommit will likely be reverted in the 2.6.23 stable kernels.\n\nSecondly, in the 2.6.24 model, x86-64 has now grown support for\nSPARSEMEM_VMEMMAP, which disables the relevant code anyway, so while the\nbug is not visible any more, it\u0027s become invisible due to the code just\nbeing irrelevant and no longer enabled on the only architecture that\nthis ever affected.\n\nReported-by: Dave Jones \u003cdavej@redhat.com\u003e\nTested-by: Martin Ebourne \u003cfedora@ebourne.me.uk\u003e\nCc: Zou Nan hai \u003cnanhai.zou@intel.com\u003e\nCc: Suresh Siddha \u003csuresh.b.siddha@intel.com\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nAcked-by: Andy Whitcroft \u003capw@shadowen.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "f2b8544f5f50073fcc705e16b45a6821d50eb080", "tree": "53c6d6fc035ed4d907276ef2ab2e8aab853e9919", "parents": [ "cbf67812b2f1431c5e432ddecd202984c6882f2a" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Mon Oct 29 13:15:39 2007 +0000" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Oct 29 07:53:26 2007 -0700" }, "message": "NOMMU: mm/nommu.c needs linux/module.h\n\nmm/nommu.c needs to #include linux/module.h for it to understand EXPORT_*()\nmacros.\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "cbf67812b2f1431c5e432ddecd202984c6882f2a", "tree": "a6c6fc3d65fdababe7af31433038dcc32ec05ebb", "parents": [ "20dc9f01a867318ac0bc3ea9185d71f05076aeb0", "33013a881104304fcffe817f17f22a1588908037" ], "author": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Oct 29 07:49:28 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Oct 29 07:49:28 2007 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.dk/linux-2.6-block\n\n* \u0027for-linus\u0027 of git://git.kernel.dk/linux-2.6-block:\n compat_ioctl: fix block device compat ioctl regression\n [BLOCK] Fix bad sharing of tag busy list on queues with shared tag maps\n Fix a build error when BLOCK\u003dn\n block: use lock bitops for the tag map.\n cciss: update copyright notices\n cfq_get_queue: fix possible NULL pointer access\n blk_sync_queue() should cancel request_queue-\u003eunplug_work\n cfq_exit_queue() should cancel cfq_data-\u003eunplug_work\n block layer: remove a unused argument of drive_stat_acct()\n" }, { "commit": "27bb628a1d759cc82ff6360becf61de601907811", "tree": "ce5c354e83a48ad60c50cab2967de4f7285c703f", "parents": [ "2d8a972661832719931b0dd5b80e97215cb93d94" ], "author": { "name": "Al Viro", "email": "viro@ftp.linux.org.uk", "time": "Mon Oct 29 04:42:55 2007 +0000" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Oct 29 07:41:32 2007 -0700" }, "message": "missing atomic_read_long() in slub.c\n\nnr_slabs is atomic_long_t, not atomic_t\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3a424f2d56613acfb9e583ec9c85a2be3e3af028", "tree": "6d01585f65282ed99e422345946c2692f19d96f4", "parents": [ "adb4ddbbfb90c302e78da68b3f015588ca45d7f3" ], "author": { "name": "Emil Medve", "email": "Emilian.Medve@Freescale.com", "time": "Wed Oct 24 14:18:32 2007 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Mon Oct 29 11:33:06 2007 +0100" }, "message": "Fix a build error when BLOCK\u003dn\n\nmm/filemap.c: In function \u0027__filemap_fdatawrite_range\u0027:\nmm/filemap.c:200: error: implicit declaration of function\n\u0027mapping_cap_writeback_dirty\u0027\n\nThis happens when we don\u0027t use/have any block devices and a NFS root\nfilesystem is used.\n\nmapping_cap_writeback_dirty() is defined in linux/backing-dev.h which\nused to be provided in mm/filemap.c by linux/blkdev.h until commit\nf5ff8422bbdd59f8c1f699df248e1b7a11073027 (Fix warnings with\n!CONFIG_BLOCK).\n\nSigned-off-by: Emil Medve \u003cEmilian.Medve@Freescale.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "1ddd439ef987c9f0209e6ce824b67518f2afe67b", "tree": "1f6e0ef40c2b9cf5819d9193d7d06c6a0a33ff6c", "parents": [ "4ae3f847e49e3787eca91bced31f8fd328d50496" ], "author": { "name": "Hugh Dickins", "email": "hugh@veritas.com", "time": "Mon Oct 22 20:45:12 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Oct 23 08:32:06 2007 -0700" }, "message": "fix mprotect vma_wants_writenotify prot\n\nFix mprotect bug in recent commit 3ed75eb8f1cd89565966599c4f77d2edb086d5b0\n(setup vma-\u003evm_page_prot by vm_get_page_prot()): the vma_wants_writenotify\ncase was setting the same prot as when not.\n\nNothing wrong with the use of protection_map[] in mmap_region(),\nbut use vm_get_page_prot() there too in the same ~VM_SHARED way.\n\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nCc: Coly Li \u003ccoyli@suse.de\u003e\nCc: Tony Luck \u003ctony.luck@intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "39655164405940d4818224a085e35420e2f97aed", "tree": "6b019b3bc77eecac1731fe64e5c031790c2b5223", "parents": [ "cfaea787c05822acbb4d8963baee5edd1cc0258f" ], "author": { "name": "Christoph Hellwig", "email": "hch@lst.de", "time": "Sun Oct 21 16:42:17 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Oct 22 08:13:21 2007 -0700" }, "message": "exportfs: make struct export_operations const\n\nNow that nfsd has stopped writing to the find_exported_dentry member we an\nmark the export_operations const\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nCc: Neil Brown \u003cneilb@suse.de\u003e\nCc: \"J. Bruce Fields\" \u003cbfields@fieldses.org\u003e\nCc: \u003clinux-ext4@vger.kernel.org\u003e\nCc: Dave Kleikamp \u003cshaggy@austin.ibm.com\u003e\nCc: Anton Altaparmakov \u003caia21@cantab.net\u003e\nCc: David Chinner \u003cdgc@sgi.com\u003e\nCc: Timothy Shimmin \u003ctes@sgi.com\u003e\nCc: OGAWA Hirofumi \u003chirofumi@mail.parknet.co.jp\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nCc: Chris Mason \u003cmason@suse.com\u003e\nCc: Jeff Mahoney \u003cjeffm@suse.com\u003e\nCc: \"Vladimir V. Saveliev\" \u003cvs@namesys.com\u003e\nCc: Steven Whitehouse \u003cswhiteho@redhat.com\u003e\nCc: Mark Fasheh \u003cmark.fasheh@oracle.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "480b116c98344ca246f50aade6eb7aca98151a2f", "tree": "72ba3ba17f8c5a72fbd168d1a963b06e269ad898", "parents": [ "905251a02eeccc59f8e1d743679b8edadc5f738b" ], "author": { "name": "Christoph Hellwig", "email": "hch@lst.de", "time": "Sun Oct 21 16:42:13 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Oct 22 08:13:20 2007 -0700" }, "message": "shmem: new export ops\n\nI\u0027m not sure what people were thinking when adding support to export tmpfs,\nbut here\u0027s the conversion anyway:\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nCc: Neil Brown \u003cneilb@suse.de\u003e\nCc: \"J. Bruce Fields\" \u003cbfields@fieldses.org\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b9049e234401e1fad8459d69a952b174d76c399d", "tree": "619adc6533f33379baf25253ff56603b272453c8", "parents": [ "7b78d335ac15b10bbcb0397c635d7f0d569b0270" ], "author": { "name": "Yasunori Goto", "email": "y-goto@jp.fujitsu.com", "time": "Sun Oct 21 16:41:37 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Oct 22 08:13:17 2007 -0700" }, "message": "memory hotplug: make kmem_cache_node for SLUB on memory online avoid panic\n\nFix a panic due to access NULL pointer of kmem_cache_node at discard_slab()\nafter memory online.\n\nWhen memory online is called, kmem_cache_nodes are created for all SLUBs\nfor new node whose memory are available.\n\nslab_mem_going_online_callback() is called to make kmem_cache_node() in\ncallback of memory online event. If it (or other callbacks) fails, then\nslab_mem_offline_callback() is called for rollback.\n\nIn memory offline, slab_mem_going_offline_callback() is called to shrink\nall slub cache, then slab_mem_offline_callback() is called later.\n\n[akpm@linux-foundation.org: coding-style fixes]\n[akpm@linux-foundation.org: locking fix]\n[akpm@linux-foundation.org: build fix]\nSigned-off-by: Yasunori Goto \u003cy-goto@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "7b78d335ac15b10bbcb0397c635d7f0d569b0270", "tree": "3e49006c0166ff8bcc6e11b401437fc31d875ec8", "parents": [ "10020ca246c55744dad815ad4f15e1f488ca55a8" ], "author": { "name": "Yasunori Goto", "email": "y-goto@jp.fujitsu.com", "time": "Sun Oct 21 16:41:36 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Oct 22 08:13:17 2007 -0700" }, "message": "memory hotplug: rearrange memory hotplug notifier\n\nCurrent memory notifier has some defects yet. (Fortunately, nothing uses\nit.) This patch is to fix and rearrange for them.\n\n - Add information of start_pfn, nr_pages, and node id if node status is\n changes from/to memoryless node for callback functions.\n Callbacks can\u0027t do anything without those information.\n - Add notification going-online status.\n It is necessary for creating per node structure before the node\u0027s\n pages are available.\n - Move GOING_OFFLINE status notification after page isolation.\n It is good place for return memory like cache for callback,\n because returned page is not used again.\n - Make CANCEL events for rollingback when error occurs.\n - Delete MEM_MAPPING_INVALID notification. It will be not used.\n - Fix compile error of (un)register_memory_notifier().\n\nSigned-off-by: Yasunori Goto \u003cy-goto@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e91a810e884850781a1cada2ea81b8016881d244", "tree": "ed23efe49c12aeb8e336795bee11dde3e4ebb2ec", "parents": [ "e8b8c977734193adedf2b0f607d6252c78e86394" ], "author": { "name": "Al Viro", "email": "viro@ftp.linux.org.uk", "time": "Sat Oct 20 21:45:33 2007 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Sat Oct 20 15:04:06 2007 -0700" }, "message": "oom_kill bug\n\nWrong order of arguments\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "ad3d0a3827a3ce45ee4141de81be7375157b42de", "tree": "47c96799b8108e57dd24036beae314441eb8822f", "parents": [ "2de206d8f09c8b01d3721f860c28258838953a18" ], "author": { "name": "Philipp Marek", "email": "philipp.marek@bmlv.gv.at", "time": "Sat Oct 20 02:46:58 2007 +0200" }, "committer": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Sat Oct 20 02:46:58 2007 +0200" }, "message": "small documentation fixes\n\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\n" }, { "commit": "e9534b3fd7843d1bd5a7a1fe2474a09f72d41ab8", "tree": "90a935afb9962ea5696149c8ca8a11b2fe97b2bd", "parents": [ "88a9b03775cbd5124c91f350b89c0dfb9d6550eb" ], "author": { "name": "Gabriel Craciunescu", "email": "nix.or.die@googlemail.com", "time": "Sat Oct 20 02:13:26 2007 +0200" }, "committer": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Sat Oct 20 02:13:26 2007 +0200" }, "message": "Typo fixes retrun -\u003e return\n\nTypo fixes retrun -\u003e return\n\nSigned-off-by: Gabriel Craciunescu \u003cnix.or.die@googlemail.com\u003e\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\n" }, { "commit": "183ff22bb6bd8188c904ebfb479656ae52230b72", "tree": "425207fc9cdca03df64ee8241ba764c75db4d8d1", "parents": [ "676b1855de0a18100b3c340084eb8ef72bde4fb1" ], "author": { "name": "Simon Arlott", "email": "simon@fire.lp0.eux", "time": "Sat Oct 20 01:27:18 2007 +0200" }, "committer": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Sat Oct 20 01:27:18 2007 +0200" }, "message": "spelling fixes: mm/\n\nSpelling fixes in mm/.\n\nSigned-off-by: Simon Arlott \u003csimon@fire.lp0.eu\u003e\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\n" }, { "commit": "8518609deeacebafd71855f87cc411adb0c3be4e", "tree": "899ae1c7eaa49aa4641351868d77fc6c60006ed7", "parents": [ "3a4fa0a25da81600ea0bcd75692ae8ca6050d165" ], "author": { "name": "Robert P. J. Day", "email": "rpjday@mindspring.com", "time": "Fri Oct 19 23:11:38 2007 +0200" }, "committer": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Fri Oct 19 23:11:38 2007 +0200" }, "message": "Explain clearly why kmalloc() can\u0027t use __GFP_HIGHMEM.\n\nFix the wishy-washy comment to clearly explain why kmalloc() can\u0027t\nuse the __GFP_HIGHMEM zone modifier.\n\nSigned-off-by: Robert P. J. Day \u003crpjday@mindspring.com\u003e\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\n" }, { "commit": "ba25f9dcc4ea6e30839fcab5a5516f2176d5bfed", "tree": "3123c03b25dd5c0cd24b6ab4fc16731217838157", "parents": [ "9a2e70572e94e21e7ec4186702d045415422bda0" ], "author": { "name": "Pavel Emelyanov", "email": "xemul@openvz.org", "time": "Thu Oct 18 23:40:40 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Oct 19 11:53:43 2007 -0700" }, "message": "Use helpers to obtain task pid in printks\n\nThe task_struct-\u003epid member is going to be deprecated, so start\nusing the helpers (task_pid_nr/task_pid_vnr/task_pid_nr_ns) in\nthe kernel.\n\nThe first thing to start with is the pid, printed to dmesg - in\nthis case we may safely use task_pid_nr(). Besides, printks produce\nmore (much more) than a half of all the explicit pid usage.\n\n[akpm@linux-foundation.org: git-drm went and changed lots of stuff]\nSigned-off-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Dave Airlie \u003cairlied@linux.ie\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "bac0abd6174e427404dd197cdbefece31e97329b", "tree": "68ed6bd8619552c921c9fb99e83cb04fcb235a39", "parents": [ "19b9b9b54e5f115907efd56be2c3799775a46561" ], "author": { "name": "Pavel Emelyanov", "email": "xemul@openvz.org", "time": "Thu Oct 18 23:40:18 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Oct 19 11:53:40 2007 -0700" }, "message": "Isolate some explicit usage of task-\u003etgid\n\nWith pid namespaces this field is now dangerous to use explicitly, so hide\nit behind the helpers.\n\nAlso the pid and pgrp fields o task_struct and signal_struct are to be\ndeprecated. Unfortunately this patch cannot be sent right now as this\nleads to tons of warnings, so start isolating them, and deprecate later.\n\nActually the p-\u003etgid \u003d\u003d pid has to be changed to has_group_leader_pid(),\nbut Oleg pointed out that in case of posix cpu timers this is the same, and\nthread_group_leader() is more preferable.\n\nSigned-off-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nAcked-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Sukadev Bhattiprolu \u003csukadev@us.ibm.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" } ], "next": "228ebcbe634a30aec35132ea4375721bcc41bec0" }