)]}' { "log": [ { "commit": "fa7eadab4b4aec0139d2429e6f8d13375ff8a658", "tree": "91b4ef421d415b782ff54cc89296268903fc9552", "parents": [ "bc7d352c5e76c74c628a39b99777a1bdddde5e81", "fd6be105b883244127a734ac9f14ae94a022dcc0" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun May 30 12:35:15 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun May 30 12:35:15 2010 -0700" }, "message": "Merge branch \u0027core-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027core-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n mutex: Fix optimistic spinning vs. BKL\n" }, { "commit": "bc7d352c5e76c74c628a39b99777a1bdddde5e81", "tree": "3cc0a80defb54d284e2a9a1e69b1224064921775", "parents": [ "b3f2f6cd1ff935ecac9a5346904b899d7af689fe", "92af1abde4f2d74c9e5f7b670a1971779ed0b051" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun May 30 12:35:01 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun May 30 12:35:01 2010 -0700" }, "message": "Merge branch \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n perf tui: Fix last use_browser problem related to .perfconfig\n perf symbols: Add the build id cache to the vmlinux path\n perf tui: Reset use_browser if stdout is not a tty\n ring-buffer: Move zeroing out excess in page to ring buffer code\n ring-buffer: Reset \"real_end\" when page is filled\n" }, { "commit": "e9a5f426b85e429bffaee4e0b086b1e742a39fa6", "tree": "65ba763309c5d771c1f179af5b36fce996742b1c", "parents": [ "97ef6f7449da6ceddf9a90fa8851f607b67283dd" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Thu May 27 22:16:22 2010 +0200" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun May 30 09:06:00 2010 -0700" }, "message": "CPU: Avoid using unititialized error variable in disable_nonboot_cpus()\n\nIf there\u0027s only one CPU online when disable_nonboot_cpus() is called,\nthe error variable will not be initialized and that may lead to\nerroneous behavior. Fix this issue by initializing error in\ndisable_nonboot_cpus() as appropriate.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "35926ff5fba8245bd1c6ac04155048f6f89232b1", "tree": "9afc520f47e29cb3cd80462fe62858f17b1c6cfb", "parents": [ "b612a0553714c6b9744ad0d03f10cac78f3a84b1" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun May 30 09:00:03 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun May 30 09:00:03 2010 -0700" }, "message": "Revert \"cpusets: randomize node rotor used in cpuset_mem_spread_node()\"\n\nThis reverts commit 0ac0c0d0f837c499afd02a802f9cf52d3027fa3b, which\ncaused cross-architecture build problems for all the wrong reasons.\nIA64 already added its own version of __node_random(), but the fact is,\nthere is nothing architectural about the function, and the original\ncommit was just badly done. Revert it, since no fix is forthcoming.\n\nRequested-by: Stephen Rothwell \u003csfr@canb.auug.org.au\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b612a0553714c6b9744ad0d03f10cac78f3a84b1", "tree": "9dfb5cb5d13c187ff1f54448f8441512203625d0", "parents": [ "52b0ace7dfe8f70350218017a95d7cab1eb41fbb", "2a8e5e3637e2fc058798f5d3626f525729ffaaaf" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun May 30 08:56:39 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun May 30 08:56:39 2010 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:\n ceph: clean up on forwarded aborted mds request\n ceph: fix leak of osd authorizer\n ceph: close out mds, osd connections before stopping auth\n ceph: make lease code DN specific\n fs/ceph: Use ERR_CAST\n ceph: renew auth tickets before they expire\n ceph: do not resend mon requests on auth ticket renewal\n ceph: removed duplicated #includes\n ceph: avoid possible null dereference\n ceph: make mds requests killable, not interruptible\n sched: add wait_for_completion_killable_timeout\n" }, { "commit": "0aa12fb439838a85802ab8b7fbb9bcfc3e6e05cb", "tree": "c944cf9abba9a6afb3d1259140c73101d0e222a0", "parents": [ "240ed68eb567d80dd6bab739341999a5ab0ad55d" ], "author": { "name": "Sage Weil", "email": "sage@newdream.net", "time": "Sat May 29 09:12:30 2010 -0700" }, "committer": { "name": "Sage Weil", "email": "sage@newdream.net", "time": "Sat May 29 09:12:30 2010 -0700" }, "message": "sched: add wait_for_completion_killable_timeout\n\nAdd missing _killable_timeout variant for wait_for_completion that will\nreturn when a timeout expires or the task is killed.\n\nCC: Ingo Molnar \u003cmingo@elte.hu\u003e\nCC: Andreas Herrmann \u003candreas.herrmann3@amd.com\u003e\nCC: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCC: Mike Galbraith \u003cefault@gmx.de\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Sage Weil \u003csage@newdream.net\u003e\n" }, { "commit": "29d03fa12bc02c0f8085cd6bb06d11359a4bccaf", "tree": "0810a1b2bad0f853b270afed55eddc595ae8d2fc", "parents": [ "89ad6a6173127e5d31bea7a4a45ec23fa5bf4a17", "45e0fffc8a7778282e6a1514a6ae3e7ae6545111" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri May 28 10:16:27 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri May 28 10:16:27 2010 -0700" }, "message": "Merge branch \u0027timers-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027timers-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n posix_timer: Fix error path in timer_create\n hrtimer: Avoid double seqlock\n timers: Move local variable into else section\n timers: Fix slack calculation really\n" }, { "commit": "ea635c64e007061f6468ece5cc9cc62d41d4ecf2", "tree": "eaa7123e7749893e8f542d12cba616664bc2c848", "parents": [ "d7065da038227a4d09a244e6014e0186a6bd21d0" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Wed May 26 17:40:29 2010 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Thu May 27 22:03:08 2010 -0400" }, "message": "Fix racy use of anon_inode_getfd() in perf_event.c\n\nonce anon_inode_getfd() is called, you can\u0027t expect *anything* about\nstruct file that descriptor points to - another thread might be doing\nwhatever it likes with descriptor table at that point.\n\nCc: stable \u003cstable@kernel.org\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "c5617b200ac52e35f7e8cf05a17b0a2d50f6b3e9", "tree": "40d5e99660c77c5791392d349a93113c044dbf14", "parents": [ "cad719d86e9dbd06634eaba6401e022c8101d6b2", "49c177461bfbedeccbab22bf3905db2f9da7f1c3" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 15:23:47 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 15:23:47 2010 -0700" }, "message": "Merge branch \u0027perf-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perf-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (61 commits)\n tracing: Add __used annotation to event variable\n perf, trace: Fix !x86 build bug\n perf report: Support multiple events on the TUI\n perf annotate: Fix up usage of the build id cache\n x86/mmiotrace: Remove redundant instruction prefix checks\n perf annotate: Add TUI interface\n perf tui: Remove annotate from popup menu after failure\n perf report: Don\u0027t start the TUI if -D is used\n perf: Fix getline undeclared\n perf: Optimize perf_tp_event_match()\n perf: Remove more code from the fastpath\n perf: Optimize the !vmalloc backed buffer\n perf: Optimize perf_output_copy()\n perf: Fix wakeup storm for RO mmap()s\n perf-record: Share per-cpu buffers\n perf-record: Remove -M\n perf: Ensure that IOC_OUTPUT isn\u0027t used to create multi-writer buffers\n perf, trace: Optimize tracepoints by using per-tracepoint-per-cpu hlist to track events\n perf, trace: Optimize tracepoints by removing IRQ-disable from perf/tracepoint interaction\n perf tui: Allow disabling the TUI on a per command basis in ~/.perfconfig\n ...\n" }, { "commit": "45e0fffc8a7778282e6a1514a6ae3e7ae6545111", "tree": "0a1022d1af7372169ca2b5b269b548997e2bdd83", "parents": [ "174bd1994ec67a6e6191c4ed8e5dac17fa221b84" ], "author": { "name": "Andrey Vagin", "email": "avagin@openvz.org", "time": "Mon May 24 12:15:33 2010 -0700" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Thu May 27 22:38:15 2010 +0200" }, "message": "posix_timer: Fix error path in timer_create\n\nMove CLOCK_DISPATCH(which_clock, timer_create, (new_timer)) after all\nposible EFAULT erros.\n\n*_timer_create may allocate/get resources.\n(for example posix_cpu_timer_create does get_task_struct)\n\n[ tglx: fold the remove crappy comment patch into this ]\n\nSigned-off-by: Andrey Vagin \u003cavagin@openvz.org\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: \u003cstable@kernel.org\u003e\nReviewed-by: Stanislaw Gruszka \u003csgruszka@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "00b9b0af5887fed54e899e3b7f5c2ccf5e739def", "tree": "088cd96759cf4c1b2365c0e434dc95a8410b547c", "parents": [ "e2e2400bd4faee24d11872134b7ae5bd363749c0" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 10:32:08 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 10:32:08 2010 -0700" }, "message": "Avoid warning when CPU hotplug isn\u0027t enabled\n\nCommit e9fb7631ebcd (\"cpu-hotplug: introduce cpu_notify(),\n__cpu_notify(), cpu_notify_nofail()\") also introduced this annoying\nwarning:\n\n kernel/cpu.c:157: warning: \u0027cpu_notify_nofail\u0027 defined but not used\n\nwhen CONFIG_HOTPLUG_CPU wasn\u0027t set.\n\nSo move that helper inside the #ifdef CONFIG_HOTPLUG_CPU region, and\nsimplify it while at it.\n\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3dd6b5fb436083fdd8af7ad2baa07db19deb73b2", "tree": "9c97bccad863663e36224e96b00f00b5a7dbaea6", "parents": [ "7d6e6d09de82cf6cff7fecdba55198b9f47b381c" ], "author": { "name": "Lee Schermerhorn", "email": "lee.schermerhorn@hp.com", "time": "Wed May 26 14:45:04 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:57 2010 -0700" }, "message": "numa: in-kernel profiling: use cpu_to_mem() for per cpu allocations\n\nIn kernel profiling requires that we be able to allocate \"local\" memory\nfor each cpu. Use \"cpu_to_mem()\" instead of \"cpu_to_node()\" to support\nmemoryless nodes.\n\nDepends on the \"numa_mem_id()\" patch.\n\nSigned-off-by: Lee Schermerhorn \u003clee.schermerhorn@hp.com\u003e\nCc: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Mel Gorman \u003cmel@csn.ul.ie\u003e\nCc: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nCc: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nCc: Eric Whitney \u003ceric.whitney@hp.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: \"H. Peter Anvin\" \u003chpa@zytor.com\u003e\nCc: \"Luck, Tony\" \u003ctony.luck@intel.com\u003e\nCc: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "5b530fc18324602e1ecb70cd280c2194b2656a5e", "tree": "d96b7b408818606ebdc41c1895c8eb4ed03db37a", "parents": [ "cccad8f9f0f1be585c9dc534857ca9c67e538836" ], "author": { "name": "Anton Blanchard", "email": "anton@samba.org", "time": "Wed May 26 14:44:24 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:53 2010 -0700" }, "message": "panic: call console_verbose() in panic\n\nMost distros turn the console verbosity down and that means a backtrace\nafter a panic never makes it to the console. I assume we haven\u0027t seen\nthis because a panic is often preceeded by an oops which will have called\nconsole_verbose. There are however a lot of places we call panic\ndirectly, and they are broken.\n\nUse console_verbose like we do in the oops path to ensure a directly\ncalled panic will print a backtrace.\n\nSigned-off-by: Anton Blanchard \u003canton@samba.org\u003e\nAcked-by: Greg Kroah-Hartman \u003cgregkh@suse.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": "f106eee10038c2ee5b6056aaf3f6d5229be6dcdd", "tree": "de7ce930b7119a1be00f3c7604065896d31abc9c", "parents": [ "f20011457f41c11edb5ea5038ad0c8ea9f392023" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Wed May 26 14:44:11 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:52 2010 -0700" }, "message": "pids: fix fork_idle() to setup -\u003epids correctly\n\ncopy_process(pid \u003d\u003e \u0026init_struct_pid) doesn\u0027t do attach_pid/etc.\n\nIt shouldn\u0027t, but this means that the idle threads run with the wrong\npids copied from the caller\u0027s task_struct. In x86 case the caller is\neither kernel_init() thread or keventd.\n\nIn particular, this means that after the series of cpu_up/cpu_down an\nidle thread (which never exits) can run with .pid pointing to nowhere.\n\nChange fork_idle() to initialize idle-\u003epids[] correctly. We only set\n.pid \u003d \u0026init_struct_pid but do not add .node to list, INIT_TASK() does\nthe same for the boot-cpu idle thread (swapper).\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Cedric Le Goater \u003cclg@fr.ibm.com\u003e\nCc: Dave Hansen \u003chaveblue@us.ibm.com\u003e\nCc: Eric Biederman \u003cebiederm@xmission.com\u003e\nCc: Herbert Poetzl \u003cherbert@13thfloor.at\u003e\nCc: Mathias Krause \u003cMathias.Krause@secunet.com\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: Sukadev Bhattiprolu \u003csukadev@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": "72680a191b934377430032f93af15ef50aafb3a8", "tree": "e6f41babe66bf642204b3d92e793f5071739b1d2", "parents": [ "bd4fb654e3a0d83ca8cb138c5e3e6e65407e119c" ], "author": { "name": "Hedi Berriche", "email": "hedi@sgi.com", "time": "Wed May 26 14:44:06 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:51 2010 -0700" }, "message": "pids: increase pid_max based on num_possible_cpus\n\nOn a system with a substantial number of processors, the early default\npid_max of 32k will not be enough. A system with 1664 CPU\u0027s, there are\n25163 processes started before the login prompt. It\u0027s estimated that with\n2048 CPU\u0027s we will pass the 32k limit. With 4096, we\u0027ll reach that limit\nvery early during the boot cycle, and processes would stall waiting for an\navailable pid.\n\nThis patch increases the early maximum number of pids available, and\nincreases the minimum number of pids that can be set during runtime.\n\n[akpm@linux-foundation.org: fix warnings]\nSigned-off-by: Hedi Berriche \u003chedi@sgi.com\u003e\nSigned-off-by: Mike Travis \u003ctravis@sgi.com\u003e\nSigned-off-by: Robin Holt \u003cholt@sgi.com\u003e\nAcked-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Pavel Machek \u003cpavel@ucw.cz\u003e\nCc: Alan Cox \u003calan@lxorguk.ukuu.org.uk\u003e\nCc: Greg KH \u003cgregkh@suse.de\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nCc: John Stoffel \u003cjohn@stoffel.org\u003e\nCc: Jack Steiner \u003csteiner@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": "79a6cdeb7eb54e3d2d4bb9fc5f0231b057882a87", "tree": "2a80342946cf206002ce5dcf32f097320f64fdd1", "parents": [ "c9d221f86e43d9fb16260fe18a8cd6767f36c8a5" ], "author": { "name": "Lai Jiangshan", "email": "laijs@cn.fujitsu.com", "time": "Wed May 26 14:43:36 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:48 2010 -0700" }, "message": "cpuhotplug: do not need cpu_hotplug_begin() when CONFIG_HOTPLUG_CPU\u003dn\n\nSince when CONFIG_HOTPLUG_CPU\u003dn, get_online_cpus() do nothing, so we don\u0027t\nneed cpu_hotplug_begin() either.\n\nThis patch moves cpu_hotplug_begin()/cpu_hotplug_done() into the code\nblock of CONFIG_HOTPLUG_CPU\u003dy.\n\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Gautham R Shenoy \u003cego@in.ibm.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\n\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "80b5184cc537718122e036afe7e62d202b70d077", "tree": "d4e2b400f0e951156d64d546fd563fa5a8ab02d3", "parents": [ "ad84bb5b98bf81deae97e3bcd814675d6b4e6f72" ], "author": { "name": "Akinobu Mita", "email": "akinobu.mita@gmail.com", "time": "Wed May 26 14:43:32 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:48 2010 -0700" }, "message": "kernel/: convert cpu notifier to return encapsulate errno value\n\nBy the previous modification, the cpu notifier can return encapsulate\nerrno value. This converts the cpu notifiers for kernel/*.c\n\nSigned-off-by: Akinobu Mita \u003cakinobu.mita@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e6bde73b07edeb703d4c89c1daabc09c303de11f", "tree": "9b60a3fc2ce002b26e46611357cb5529795e7ac5", "parents": [ "e9fb7631ebcdc9467cbb736337546a42f7b7f28e" ], "author": { "name": "Akinobu Mita", "email": "akinobu.mita@gmail.com", "time": "Wed May 26 14:43:29 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:47 2010 -0700" }, "message": "cpu-hotplug: return better errno on cpu hotplug failure\n\nCurrently, onlining or offlining a CPU failure by one of the cpu notifiers\nerror always cause -EINVAL error. (i.e. writing 0 or 1 to\n/sys/devices/system/cpu/cpuX/online gets EINVAL)\n\nTo get better error reporting rather than always getting -EINVAL, This\nchanges cpu_notify() to return -errno value with notifier_to_errno() and\nfix the callers. Now that cpu notifiers can return encapsulate errno\nvalue.\n\nCurrently, all cpu hotplug notifiers return NOTIFY_OK, NOTIFY_BAD, or\nNOTIFY_DONE. So cpu_notify() can returns 0 or -EPERM with this change for\nnow.\n\n(notifier_to_errno(NOTIFY_OK) \u003d\u003d 0, notifier_to_errno(NOTIFY_DONE) \u003d\u003d 0,\nnotifier_to_errno(NOTIFY_BAD) \u003d\u003d -EPERM)\n\nForthcoming patches convert several cpu notifiers to return encapsulate\nerrno value with notifier_from_errno().\n\nSigned-off-by: Akinobu Mita \u003cakinobu.mita@gmail.com\u003e\nCc: Rusty Russell \u003crusty@rustcorp.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": "e9fb7631ebcdc9467cbb736337546a42f7b7f28e", "tree": "1887c2a8dc858d966c3b0bd63d9026908e5eb572", "parents": [ "36e15263aa5dcf3b72f1f88437e69497782b7ab8" ], "author": { "name": "Akinobu Mita", "email": "akinobu.mita@gmail.com", "time": "Wed May 26 14:43:28 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:47 2010 -0700" }, "message": "cpu-hotplug: introduce cpu_notify(), __cpu_notify(), cpu_notify_nofail()\n\nNo functional change. These are just wrappers of\nraw_cpu_notifier_call_chain.\n\nSigned-off-by: Akinobu Mita \u003cakinobu.mita@gmail.com\u003e\nCc: Rusty Russell \u003crusty@rustcorp.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": "b3ac022cb9dc5883505a88b159d1b240ad1ef405", "tree": "bffa035303cbe3c5bde048ac3d3154fb57059e2d", "parents": [ "dd98acf74762764fbc4382a1d9a244f11a2658cc" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Wed May 26 14:43:24 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:47 2010 -0700" }, "message": "proc: turn signal_struct-\u003ecount into \"int nr_threads\"\n\nNo functional changes, just s/atomic_t count/int nr_threads/.\n\nWith the recent changes this counter has a single user, get_nr_threads()\nAnd, none of its callers need the really accurate number of threads, not\nto mention each caller obviously races with fork/exit. It is only used to\nreport this value to the user-space, except first_tid() uses it to avoid\nthe unnecessary while_each_thread() loop in the unlikely case.\n\nIt is a bit sad we need a word in struct signal_struct for this, perhaps\nwe can change get_nr_threads() to approximate the number of threads using\nsignal-\u003elive and kill -\u003enr_threads later.\n\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nAcked-by: Roland McGrath \u003croland@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": "5089a9768041206c76fac299ccd82a528c24c254", "tree": "88c7951ab137bc04db3ca02ef8bfeef2536472e2", "parents": [ "7e49827cc937a742ae02078b483e3eb78f791a2a" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Wed May 26 14:43:22 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:47 2010 -0700" }, "message": "proc_sched_show_task(): use get_nr_threads()\n\nTrivial, use get_nr_threads() helper to read signal-\u003ecount which we are\ngoing to change.\n\nLike other callers, proc_sched_show_task() doesn\u0027t need the exactly\nprecise nr_threads.\n\nDavid said:\n\n: Note that get_nr_threads() isn\u0027t completely equivalent (it can return 0\n: where proc_sched_show_task() will display a 1). But I don\u0027t think this\n: should be a problem.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nAcked-by: David Howells \u003cdhowells@redhat.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nAcked-by: Roland McGrath \u003croland@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": "6e1be45aa6ba6a36c0312f65ecf311135c73001d", "tree": "3ea540e0ee249259e40e26c38215981b466075ad", "parents": [ "97101eb41d0d3c97543878ce40e0b8a8b2747ed7" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Wed May 26 14:43:21 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:47 2010 -0700" }, "message": "check_unshare_flags: kill the bogus CLONE_SIGHAND/sig-\u003ecount check\n\ncheck_unshare_flags(CLONE_SIGHAND) adds CLONE_THREAD to *flags_ptr if the\ntask is multithreaded to ensure unshare_thread() will fail.\n\nNot only this is a bit strange way to return the error, this is absolutely\nmeaningless. If signal-\u003ecount \u003e 1 then sighand-\u003ecount must be also \u003e 1,\nand unshare_sighand() will fail anyway.\n\nIn fact, all CLONE_THREAD/SIGHAND/VM checks inside sys_unshare() do not\nlook right. Fortunately this code doesn\u0027t really work anyway.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Balbir Singh \u003cbalbir@linux.vnet.ibm.com\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Veaceslav Falico \u003cvfalico@redhat.com\u003e\nCc: Stanislaw Gruszka \u003csgruszka@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": "97101eb41d0d3c97543878ce40e0b8a8b2747ed7", "tree": "d33299c8d4787d3b578ea432fdaceb965a2acd97", "parents": [ "a705be6b5e8b05f2ae51536ec709de921960326c" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Wed May 26 14:43:20 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:46 2010 -0700" }, "message": "exit: move taskstats_tgid_free() from __exit_signal() to free_signal_struct()\n\nMove taskstats_tgid_free() from __exit_signal() to free_signal_struct().\n\nThis way signal-\u003estats never points to nowhere and we can read -\u003estats\nlockless.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Balbir Singh \u003cbalbir@linux.vnet.ibm.com\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nCc: Veaceslav Falico \u003cvfalico@redhat.com\u003e\nCc: Stanislaw Gruszka \u003csgruszka@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": "a705be6b5e8b05f2ae51536ec709de921960326c", "tree": "a4d71651807dabe2dc48bd36cf2e954d7ef967a8", "parents": [ "d40e48e02f3785b9342ee4eb3d7cc9f12981b7f5" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Wed May 26 14:43:19 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:46 2010 -0700" }, "message": "kill the obsolete thread_group_cputime_free() helper\n\nKill the empty thread_group_cputime_free() helper. It was needed to free\nthe per-cpu data which we no longer have.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Balbir Singh \u003cbalbir@linux.vnet.ibm.com\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nCc: Veaceslav Falico \u003cvfalico@redhat.com\u003e\nCc: Stanislaw Gruszka \u003csgruszka@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": "d40e48e02f3785b9342ee4eb3d7cc9f12981b7f5", "tree": "05f900ae17f4727c0e8b8c2c84d41b1cee7c13b0", "parents": [ "b7b8ff6373d4b910af081f76888395e6df53249d" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Wed May 26 14:43:19 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:46 2010 -0700" }, "message": "exit: __exit_signal: use thread_group_leader() consistently\n\nCleanup:\n\n- Add the boolean, group_dead \u003d thread_group_leader(), for clarity.\n\n- Do not test/set sig \u003d\u003d NULL to detect the all-dead case, use this\n boolean.\n\n- Pass this boolen to __unhash_process() and use it instead of another\n thread_group_leader() call which needs -\u003egroup_leader.\n\n This can be considered as microoptimization, but hopefully this also\n allows us do do other cleanups later.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Balbir Singh \u003cbalbir@linux.vnet.ibm.com\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nCc: Veaceslav Falico \u003cvfalico@redhat.com\u003e\nCc: Stanislaw Gruszka \u003csgruszka@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": "b7b8ff6373d4b910af081f76888395e6df53249d", "tree": "128a1b2cf026fb8b9791eaefb6f79f872999a5c6", "parents": [ "4ada856fb0ee62f6fe3aac3de726deac0640d929" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Wed May 26 14:43:18 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:46 2010 -0700" }, "message": "signals: kill the awful task_rq_unlock_wait() hack\n\nNow that task-\u003esignal can\u0027t go away we can revert the horrible hack added\nby ad474caca3e2a0550b7ce0706527ad5ab389a4d4 (\"fix for\naccount_group_exec_runtime(), make sure -\u003esignal can\u0027t be freed under\nrq-\u003elock\").\n\nAnd we can do more cleanups sched_stats.h/posix-cpu-timers.c later.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Alan Cox \u003calan@linux.intel.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nAcked-by: Roland McGrath \u003croland@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": "4ada856fb0ee62f6fe3aac3de726deac0640d929", "tree": "8dd3efbc19f6e1f1dac2ff7afdcd9658fb08b814", "parents": [ "ea6d290ca34c4fd91b7348338c0cc7bdeff94a35" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Wed May 26 14:43:17 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:46 2010 -0700" }, "message": "signals: clear signal-\u003etty when the last thread exits\n\nWhen the last thread exits signal-\u003etty is freed, but the pointer is not\ncleared and points to nowhere.\n\nThis is OK. Nobody should use signal-\u003etty lockless, and it is no longer\npossible to take -\u003esiglock. However this looks wrong even if correct, and\nthe nice OOPS is better than subtle and hard to find bugs.\n\nChange __exit_signal() to clear signal-\u003etty under -\u003esiglock.\n\nNote: __exit_signal() needs more cleanups. It should not check \"sig !\u003d\nNULL\" to detect the all-dead case and we have the same issues with\nsignal-\u003estats.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Alan Cox \u003calan@linux.intel.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nAcked-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nAcked-by: Roland McGrath \u003croland@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": "ea6d290ca34c4fd91b7348338c0cc7bdeff94a35", "tree": "6e9bd367650d9233c5b6cf1059845f17cb1bc460", "parents": [ "4dec2a91fd7e8815d730afbfdcf085cbf53433ac" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Wed May 26 14:43:16 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:46 2010 -0700" }, "message": "signals: make task_struct-\u003esignal immutable/refcountable\n\nWe have a lot of problems with accessing task_struct-\u003esignal, it can\n\"disappear\" at any moment. Even current can\u0027t use its -\u003esignal safely\nafter exit_notify(). -\u003esiglock helps, but it is not convenient, not\nalways possible, and sometimes it makes sense to use task-\u003esignal even\nafter this task has already dead.\n\nThis patch adds the reference counter, sigcnt, into signal_struct. This\nreference is owned by task_struct and it is dropped in\n__put_task_struct(). Perhaps it makes sense to export\nget/put_signal_struct() later, but currently I don\u0027t see the immediate\nreason.\n\nRename __cleanup_signal() to free_signal_struct() and unexport it. With\nthe previous changes it does nothing except kmem_cache_free().\n\nChange __exit_signal() to not clear/free -\u003esignal, it will be freed when\nthe last reference to any thread in the thread group goes away.\n\nNote:\n\t- when the last thead exits signal-\u003etty can point to nowhere, see\n\t the next patch.\n\n\t- with or without this patch signal_struct-\u003ecount should go away,\n\t or at least it should be \"int nr_threads\" for fs/proc. This will\n\t be addressed later.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Alan Cox \u003calan@linux.intel.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nAcked-by: Roland McGrath \u003croland@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": "4dec2a91fd7e8815d730afbfdcf085cbf53433ac", "tree": "cd33cc793abf532d4ca212d09c1e8d3154a8b530", "parents": [ "ffdf91856c812646aa276711fa7e3ad80b00764a" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Wed May 26 14:43:15 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:46 2010 -0700" }, "message": "fork/exit: move tty_kref_put() outside of __cleanup_signal()\n\ntty_kref_put() has two callsites in copy_process() paths,\n\n\t1. if copy_process() suceeds it is called before we copy\n\t signal-\u003etty from parent\n\n\t2. otherwise it is called from __cleanup_signal() under\n\t bad_fork_cleanup_signal: label\n\nIn both cases tty_kref_put() is not right and unneeded because we don\u0027t\nhave the balancing tty_kref_get(). Fortunately, this is harmless because\nthis can only happen without CLONE_THREAD, and in this case signal-\u003etty\nmust be NULL.\n\nRemove tty_kref_put() from copy_process() and __cleanup_signal(), and\nchange another caller of __cleanup_signal(), __exit_signal(), to call\ntty_kref_put() by hand.\n\nI hope this change makes sense by itself, but it is also needed to make\n-\u003esignal refcountable.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nAcked-by: Alan Cox \u003calan@linux.intel.com\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Greg KH \u003cgreg@kroah.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d30fda355188272430d3865db2ff9e24b4135ae3", "tree": "a763bd24dac66b8d287304bd1cabab859ddf9ae1", "parents": [ "4a5999429739844367d0f77a65efdd7db8202779" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Wed May 26 14:43:13 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:46 2010 -0700" }, "message": "posix-cpu-timers: avoid \"task-\u003esignal !\u003d NULL\" checks\n\nPreparation to make task-\u003esignal immutable, no functional changes.\n\nposix-cpu-timers.c checks task-\u003esignal !\u003d NULL to ensure this task is\nalive and didn\u0027t pass __exit_signal(). This is correct but we are going\nto change the lifetime rules for -\u003esignal and never reset this pointer.\n\nChange the code to check -\u003esighand instead, it doesn\u0027t matter which\npointer we check under tasklist, they both are cleared simultaneously.\n\nAs Roland pointed out, some of these changes are not strictly needed and\nprobably it makes sense to revert them later, when -\u003esignal will be pinned\nto task_struct. But this patch tries to ensure the subsequent changes in\nfork/exit can\u0027t make any visible impact on posix cpu timers.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Fenghua Yu \u003cfenghua.yu@intel.com\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Stanislaw Gruszka \u003csgruszka@redhat.com\u003e\nCc: Tony Luck \u003ctony.luck@intel.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "4a5999429739844367d0f77a65efdd7db8202779", "tree": "fff1158fa43466b30294a7db2c4629ca14973770", "parents": [ "d344193a05da89c97e965da2c5cbf687d7385eae" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Wed May 26 14:43:12 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:46 2010 -0700" }, "message": "exit: avoid sig-\u003ecount in __exit_signal() to detect the group-dead case\n\nChange __exit_signal() to check thread_group_leader() instead of\natomic_dec_and_test(\u0026sig-\u003ecount). This must be equivalent, the group\nleader must be released only after all other threads have exited and\npassed __exit_signal().\n\nHenceforth sig-\u003ecount is not actually used, except in fs/proc for\nget_nr_threads/etc.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Veaceslav Falico \u003cvfalico@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": "d344193a05da89c97e965da2c5cbf687d7385eae", "tree": "6267b68c31c4547f1749acd35d2a5bfaff919839", "parents": [ "09faef11df8c559a23e2405d123cb2683733a79a" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Wed May 26 14:43:11 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:46 2010 -0700" }, "message": "exit: avoid sig-\u003ecount in de_thread/__exit_signal synchronization\n\nde_thread() and __exit_signal() use signal_struct-\u003ecount/notify_count for\nsynchronization. We can simplify the code and use -\u003enotify_count only.\nInstead of comparing these two counters, we can change de_thread() to set\n-\u003enotify_count \u003d nr_of_sub_threads, then change __exit_signal() to\ndec-and-test this counter and notify group_exit_task.\n\nNote that __exit_signal() checks \"notify_count \u003e 0\" just for symmetry with\nexit_notify(), we could just check it is !\u003d 0.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Veaceslav Falico \u003cvfalico@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": "09faef11df8c559a23e2405d123cb2683733a79a", "tree": "db8e4c94677be8afebde938c2e6b7ba07b6b6db0", "parents": [ "9c3391684415c9dca239130d9e433a60a4edf04b" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Wed May 26 14:43:11 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:46 2010 -0700" }, "message": "exit: change zap_other_threads() to count sub-threads\n\nChange zap_other_threads() to return the number of other sub-threads found\non -\u003ethread_group list.\n\nOther changes are cosmetic:\n\n\t- change the code to use while_each_thread() helper\n\n\t- remove the obsolete comment about SIGKILL/SIGSTOP\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Veaceslav Falico \u003cvfalico@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": "9c3391684415c9dca239130d9e433a60a4edf04b", "tree": "a8019b964c625cfeeda0e9d85bafa48991546212", "parents": [ "269b005a28e124a341df4adef2c3661cf7371fcc" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Wed May 26 14:43:10 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:45 2010 -0700" }, "message": "exit: exit_notify() can trust signal-\u003enotify_count \u003c 0\n\nsignal_struct-\u003ecount in its current form must die.\n\n- it has no reasons to be atomic_t\n\n- it looks like a reference counter, but it is not\n\n- otoh, we really need to make task-\u003esignal refcountable, just look at\n the extremely ugly task_rq_unlock_wait() called from __exit_signals().\n\n- we should change the lifetime rules for task-\u003esignal, it should be\n pinned to task_struct. We have a lot of code which can be simplified\n after that.\n\n- it is not needed! while the code is correct, any usage of this\n counter is artificial, except fs/proc uses it correctly to show the\n number of threads.\n\nThis series removes the usage of sig-\u003ecount from exit pathes.\n\nThis patch:\n\nNow that Veaceslav changed copy_signal() to use zalloc(), exit_notify()\ncan just check notify_count \u003c 0 to ensure the execing sub-threads needs\nthe notification from us. No need to do other checks, notify_count !\u003d 0\nmust always mean -\u003egroup_exit_task !\u003d NULL is waiting for us.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Veaceslav Falico \u003cvfalico@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": "04b1c384fbc4e0209e5c1affb67050886376d44b", "tree": "19bc8690113dd6ded88d465a0777cb8bf7e33262", "parents": [ "d47419cd967a4f032a194148a7b08afad32faded" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Wed May 26 14:43:05 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:45 2010 -0700" }, "message": "call_usermodehelper: UMH_WAIT_EXEC ignores kernel_thread() failure\n\nUMH_WAIT_EXEC should report the error if kernel_thread() fails, like\nUMH_WAIT_PROC does.\n\nSigned-off-by: Oleg Nesterov \u003coleg@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": "d47419cd967a4f032a194148a7b08afad32faded", "tree": "b330b3adbaf1b2528b663322adff11a2761cb4b4", "parents": [ "7d64224217b53b23243fd2aa428001486f2a5da5" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Wed May 26 14:43:04 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:45 2010 -0700" }, "message": "call_usermodehelper: simplify/fix UMH_NO_WAIT case\n\n__call_usermodehelper(UMH_NO_WAIT) has 2 problems:\n\n\t- if kernel_thread() fails, call_usermodehelper_freeinfo()\n\t is not called.\n\n\t- for unknown reason UMH_NO_WAIT has UMH_WAIT_PROC logic,\n\t we spawn yet another thread which waits until the user\n\t mode application exits.\n\nChange the UMH_NO_WAIT code to use ____call_usermodehelper() instead of\nwait_for_helper(), and do call_usermodehelper_freeinfo() unconditionally.\nWe can rely on CLONE_VFORK, do_fork(CLONE_VFORK) until the child exits or\nexecs.\n\nWith or without this patch UMH_NO_WAIT does not report the error if\nkernel_thread() fails, this is correct since the caller doesn\u0027t wait for\nresult.\n\nSigned-off-by: Oleg Nesterov \u003coleg@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": "7d64224217b53b23243fd2aa428001486f2a5da5", "tree": "23219e8d6d81e891fe2571e10be6feab7f81cd49", "parents": [ "363da4022c2753bf4b4b54a1bb9e4527fdcb9d5d" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Wed May 26 14:43:03 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:45 2010 -0700" }, "message": "wait_for_helper: SIGCHLD from user-space can lead to use-after-free\n\n1. wait_for_helper() calls allow_signal(SIGCHLD) to ensure the child\n can\u0027t autoreap itself.\n\n However, this means that a spurious SIGCHILD from user-space can\n set TIF_SIGPENDING and:\n\n \t- kernel_thread() or sys_wait4() can fail due to signal_pending()\n\n \t- worse, wait4() can fail before ____call_usermodehelper() execs\n \t or exits. In this case the caller may kfree(subprocess_info)\n \t while the child still uses this memory.\n\n Change the code to use SIG_DFL instead of magic \"(void __user *)2\"\n set by allow_signal(). This means that SIGCHLD won\u0027t be delivered,\n yet the child won\u0027t autoreap itsefl.\n\n The problem is minor, only root can send a signal to this kthread.\n\n2. If sys_wait4(\u0026ret) fails it doesn\u0027t populate \"ret\", in this case\n wait_for_helper() reports a random value from uninitialized var.\n\n With this patch sys_wait4() should never fail, but still it makes\n sense to initialize ret \u003d -ECHILD so that the caller can notice\n the problem.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nAcked-by: Neil Horman \u003cnhorman@tuxdriver.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "363da4022c2753bf4b4b54a1bb9e4527fdcb9d5d", "tree": "103922ef0f185daebf5a3e8029663ab78eaed363", "parents": [ "c70a626d3eba373514c72287c93588b6974a0059" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Wed May 26 14:43:02 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:45 2010 -0700" }, "message": "call_usermodehelper: no need to unblock signals\n\n____call_usermodehelper() correctly calls flush_signal_handlers() to set\nSIG_DFL, but sigemptyset(-\u003eblocked) and recalc_sigpending() are not\nneeded.\n\nThis kthread was forked by workqueue thread, all signals must be unblocked\nand ignored, no pending signal is possible.\n\nSigned-off-by: Oleg Nesterov \u003coleg@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": "c70a626d3eba373514c72287c93588b6974a0059", "tree": "c23b890cbbeb824e52e1eaee6812bc88496a246d", "parents": [ "685bfd2c48bb3284d31e73ff3151c957d76deda9" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Wed May 26 14:43:01 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:45 2010 -0700" }, "message": "umh: creds: kill subprocess_info-\u003ecred logic\n\nNow that nobody ever changes subprocess_info-\u003ecred we can kill this member\nand related code. ____call_usermodehelper() always runs in the context of\nfreshly forked kernel thread, it has the proper -\u003ecred copied from its\nparent kthread, keventd.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nAcked-by: Neil Horman \u003cnhorman@tuxdriver.com\u003e\nAcked-by: David Howells \u003cdhowells@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": "685bfd2c48bb3284d31e73ff3151c957d76deda9", "tree": "177210787515f48c0eaad5216bd012f4a2fb2149", "parents": [ "898b374af6f71041bd3bceebe257e564f3f1d458" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Wed May 26 14:43:00 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:45 2010 -0700" }, "message": "umh: creds: convert call_usermodehelper_keys() to use subprocess_info-\u003einit()\n\ncall_usermodehelper_keys() uses call_usermodehelper_setkeys() to change\nsubprocess_info-\u003ecred in advance. Now that we have info-\u003einit() we can\nchange this code to set tgcred-\u003esession_keyring in context of execing\nkernel thread.\n\nNote: since currently call_usermodehelper_keys() is never called with\nUMH_NO_WAIT, call_usermodehelper_keys()-\u003ekey_get() and umh_keys_cleanup()\nare not really needed, we could rely on install_session_keyring_to_cred()\nwhich does key_get() on success.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nAcked-by: Neil Horman \u003cnhorman@tuxdriver.com\u003e\nAcked-by: David Howells \u003cdhowells@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": "898b374af6f71041bd3bceebe257e564f3f1d458", "tree": "b1be6fd3cca69becfc75787eab906338f363d3cd", "parents": [ "a06a4dc3a08201ff6a8a958f935b3cbf7744115f" ], "author": { "name": "Neil Horman", "email": "nhorman@tuxdriver.com", "time": "Wed May 26 14:42:59 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:44 2010 -0700" }, "message": "exec: replace call_usermodehelper_pipe with use of umh init function and resolve limit\n\nThe first patch in this series introduced an init function to the\ncall_usermodehelper api so that processes could be customized by caller.\nThis patch takes advantage of that fact, by customizing the helper in\ndo_coredump to create the pipe and set its core limit to one (for our\nrecusrsion check). This lets us clean up the previous uglyness in the\nusermodehelper internals and factor call_usermodehelper out entirely.\nWhile I\u0027m at it, we can also modify the helper setup to look for a core\nlimit value of 1 rather than zero for our recursion check\n\nSigned-off-by: Neil Horman \u003cnhorman@tuxdriver.com\u003e\nReviewed-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Andi Kleen \u003candi@firstfloor.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a06a4dc3a08201ff6a8a958f935b3cbf7744115f", "tree": "b338edde5edb31f51e0b7eb86e6c4ce8063c703f", "parents": [ "065add3941bdca54fe04ed3471a96bce9af88793" ], "author": { "name": "Neil Horman", "email": "nhorman@tuxdriver.com", "time": "Wed May 26 14:42:58 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:44 2010 -0700" }, "message": "kmod: add init function to usermodehelper\n\nAbout 6 months ago, I made a set of changes to how the core-dump-to-a-pipe\nfeature in the kernel works. We had reports of several races, including\nsome reports of apps bypassing our recursion check so that a process that\nwas forked as part of a core_pattern setup could infinitely crash and\nrefork until the system crashed.\n\nWe fixed those by improving our recursion checks. The new check basically\nrefuses to fork a process if its core limit is zero, which works well.\n\nUnfortunately, I\u0027ve been getting grief from maintainer of user space\nprograms that are inserted as the forked process of core_pattern. They\ncontend that in order for their programs (such as abrt and apport) to\nwork, all the running processes in a system must have their core limits\nset to a non-zero value, to which I say \u0027yes\u0027. I did this by design, and\nthink thats the right way to do things.\n\nBut I\u0027ve been asked to ease this burden on user space enough times that I\nthought I would take a look at it. The first suggestion was to make the\nrecursion check fail on a non-zero \u0027special\u0027 number, like one. That way\nthe core collector process could set its core size ulimit to 1, and enable\nthe kernel\u0027s recursion detection. This isn\u0027t a bad idea on the surface,\nbut I don\u0027t like it since its opt-in, in that if a program like abrt or\napport has a bug and fails to set such a core limit, we\u0027re left with a\nrecursively crashing system again.\n\nSo I\u0027ve come up with this. What I\u0027ve done is modify the\ncall_usermodehelper api such that an extra parameter is added, a function\npointer which will be called by the user helper task, after it forks, but\nbefore it exec\u0027s the required process. This will give the caller the\nopportunity to get a call back in the processes context, allowing it to do\nwhatever it needs to to the process in the kernel prior to exec-ing the\nuser space code. In the case of do_coredump, this callback is ues to set\nthe core ulimit of the helper process to 1. This elimnates the opt-in\nproblem that I had above, as it allows the ulimit for core sizes to be set\nto the value of 1, which is what the recursion check looks for in\ndo_coredump.\n\nThis patch:\n\nCreate new function call_usermodehelper_fns() and allow it to assign both\nan init and cleanup function, as we\u0027ll as arbitrary data.\n\nThe init function is called from the context of the forked process and\nallows for customization of the helper process prior to calling exec. Its\nreturn code gates the continuation of the process, or causes its exit.\nAlso add an arbitrary data pointer to the subprocess_info struct allowing\nfor data to be passed from the caller to the new process, and the\nsubsequent cleanup process\n\nAlso, use this patch to cleanup the cleanup function. It currently takes\nan argp and envp pointer for freeing, which is ugly. Lets instead just\nmake the subprocess_info structure public, and pass that to the cleanup\nand init routines\n\nSigned-off-by: Neil Horman \u003cnhorman@tuxdriver.com\u003e\nReviewed-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Andi Kleen \u003candi@firstfloor.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "065add3941bdca54fe04ed3471a96bce9af88793", "tree": "0c3505a04bb1b54926c527644c0ee2f57680c250", "parents": [ "e0129ef91ed758c06b6557c36124acfb2e1c7305" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Wed May 26 14:42:54 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:44 2010 -0700" }, "message": "signals: check_kill_permission(): don\u0027t check creds if same_thread_group()\n\nAndrew Tridgell reports that aio_read(SIGEV_SIGNAL) can fail if the\nnotification from the helper thread races with setresuid(), see\nhttp://samba.org/~tridge/junkcode/aio_uid.c\n\nThis happens because check_kill_permission() doesn\u0027t permit sending a\nsignal to the task with the different cred-\u003exids. But there is not any\nsecurity reason to check -\u003ecred\u0027s when the task sends a signal (private or\ngroup-wide) to its sub-thread. Whatever we do, any thread can bypass all\nsecurity checks and send SIGKILL to all threads, or it can block a signal\nSIG and do kill(gettid(), SIG) to deliver this signal to another\nsub-thread. Not to mention that CLONE_THREAD implies CLONE_VM.\n\nChange check_kill_permission() to avoid the credentials check when the\nsender and the target are from the same thread group.\n\nAlso, move \"cred \u003d current_cred()\" down to avoid calling get_current()\ntwice.\n\nNote: David Howells pointed out we could relax this even more, the\nCLONE_SIGHAND (without CLONE_THREAD) case probably does not need\nthese checks too.\n\nRoland said:\n: The glibc (libpthread) that does set*id across threads has\n: been in use for a while (2.3.4?), probably in distro\u0027s using kernels as old\n: or older than any active -stable streams. In the race in question, this\n: kernel bug is breaking valid POSIX application expectations.\n\nReported-by: Andrew Tridgell \u003ctridge@samba.org\u003e\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nAcked-by: David Howells \u003cdhowells@redhat.com\u003e\nCc: Eric Paris \u003ceparis@parisplace.org\u003e\nCc: Jakub Jelinek \u003cjakub@redhat.com\u003e\nCc: James Morris \u003cjmorris@namei.org\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nCc: Stephen Smalley \u003csds@tycho.nsa.gov\u003e\nCc: \u003cstable@kernel.org\u003e\t\t[all kernel versions]\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e0129ef91ed758c06b6557c36124acfb2e1c7305", "tree": "e47392371ed106f2241d18ac6339bedd6c699c9b", "parents": [ "9c1a125921d146f22cf28ff366ff69fd602a0e9b" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Wed May 26 14:42:53 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:44 2010 -0700" }, "message": "ptrace: PTRACE_GETFDPIC: fix the unsafe usage of child-\u003emm\n\nNow that Mike Frysinger unified the FDPIC ptrace code, we can fix the\nunsafe usage of child-\u003emm in ptrace_request(PTRACE_GETFDPIC).\n\nWe have the reference to task_struct, and ptrace_check_attach() verified\nthe tracee is stopped. But nothing can protect from SIGKILL after that,\nwe must not assume child-\u003emm !\u003d NULL.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nAcked-by: Mike Frysinger \u003cvapier.adi@gmail.com\u003e\nAcked-by: David Howells \u003cdhowells@redhat.com\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: Greg Ungerer \u003cgerg@snapgear.com\u003e\nAcked-by: Roland McGrath \u003croland@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": "9c1a125921d146f22cf28ff366ff69fd602a0e9b", "tree": "37df1b2ae74c23371de7e8b46427fc0a16727cdb", "parents": [ "0ac0c0d0f837c499afd02a802f9cf52d3027fa3b" ], "author": { "name": "Mike Frysinger", "email": "vapier@gentoo.org", "time": "Wed May 26 14:42:52 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:44 2010 -0700" }, "message": "ptrace: unify FDPIC implementations\n\nThe Blackfin/FRV/SuperH guys all have the same exact FDPIC ptrace code in\ntheir arch handlers (since they were probably copied \u0026 pasted). Since\nthese ptrace interfaces are an arch independent aspect of the FDPIC code,\nunify them in the common ptrace code so new FDPIC ports don\u0027t need to copy\nand paste this fundamental stuff yet again.\n\nSigned-off-by: Mike Frysinger \u003cvapier@gentoo.org\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nAcked-by: David Howells \u003cdhowells@redhat.com\u003e\nAcked-by: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: Oleg Nesterov \u003coleg@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": "0ac0c0d0f837c499afd02a802f9cf52d3027fa3b", "tree": "c20a7306d4b727722556af1aa5565855686aee07", "parents": [ "6adef3ebe570bcde67fd6c16101451ddde5712b5" ], "author": { "name": "Jack Steiner", "email": "steiner@sgi.com", "time": "Wed May 26 14:42:51 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:44 2010 -0700" }, "message": "cpusets: randomize node rotor used in cpuset_mem_spread_node()\n\nSome workloads that create a large number of small files tend to assign\ntoo many pages to node 0 (multi-node systems). Part of the reason is that\nthe rotor (in cpuset_mem_spread_node()) used to assign nodes starts at\nnode 0 for newly created tasks.\n\nThis patch changes the rotor to be initialized to a random node number of\nthe cpuset.\n\n[akpm@linux-foundation.org: fix layout]\n[Lee.Schermerhorn@hp.com: Define stub numa_random() for !NUMA configuration]\nSigned-off-by: Jack Steiner \u003csteiner@sgi.com\u003e\nSigned-off-by: Lee Schermerhorn \u003clee.schermerhorn@hp.com\u003e\nCc: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nCc: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: Jack Steiner \u003csteiner@sgi.com\u003e\nCc: Robin Holt \u003cholt@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": "6adef3ebe570bcde67fd6c16101451ddde5712b5", "tree": "0f60e2a4d01850ae33aee6cefc7a59845ede89a0", "parents": [ "2c488db27b614816024e7994117f599337de0f34" ], "author": { "name": "Jack Steiner", "email": "steiner@sgi.com", "time": "Wed May 26 14:42:49 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:44 2010 -0700" }, "message": "cpusets: new round-robin rotor for SLAB allocations\n\nWe have observed several workloads running on multi-node systems where\nmemory is assigned unevenly across the nodes in the system. There are\nnumerous reasons for this but one is the round-robin rotor in\ncpuset_mem_spread_node().\n\nFor example, a simple test that writes a multi-page file will allocate\npages on nodes 0 2 4 6 ... Odd nodes are skipped. (Sometimes it\nallocates on odd nodes \u0026 skips even nodes).\n\nAn example is shown below. The program \"lfile\" writes a file consisting\nof 10 pages. The program then mmaps the file \u0026 uses get_mempolicy(...,\nMPOL_F_NODE) to determine the nodes where the file pages were allocated.\nThe output is shown below:\n\n\t# ./lfile\n\t allocated on nodes: 2 4 6 0 1 2 6 0 2\n\nThere is a single rotor that is used for allocating both file pages \u0026 slab\npages. Writing the file allocates both a data page \u0026 a slab page\n(buffer_head). This advances the RR rotor 2 nodes for each page\nallocated.\n\nA quick confirmation seems to confirm this is the cause of the uneven\nallocation:\n\n\t# echo 0 \u003e/dev/cpuset/memory_spread_slab\n\t# ./lfile\n\t allocated on nodes: 6 7 8 9 0 1 2 3 4 5\n\nThis patch introduces a second rotor that is used for slab allocations.\n\nSigned-off-by: Jack Steiner \u003csteiner@sgi.com\u003e\nAcked-by: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nCc: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: Jack Steiner \u003csteiner@sgi.com\u003e\nCc: Robin Holt \u003cholt@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": "907860ed381a31b0102f362df67c1c5cae6ef050", "tree": "4f47a6fe898b1f45da505fc0c27d98e66d42aa46", "parents": [ "ac39cf8cb86c45eeac6a592ce0d58f9021a97235" ], "author": { "name": "Kirill A. Shutemov", "email": "kirill@shutemov.name", "time": "Wed May 26 14:42:46 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:44 2010 -0700" }, "message": "cgroups: make cftype.unregister_event() void-returning\n\nSince we are unable to handle an error returned by\ncftype.unregister_event() properly, let\u0027s make the callback\nvoid-returning.\n\nmem_cgroup_unregister_event() has been rewritten to be a \"never fail\"\nfunction. On mem_cgroup_usage_register_event() we save old buffer for\nthresholds array and reuse it in mem_cgroup_usage_unregister_event() to\navoid allocation.\n\nSigned-off-by: Kirill A. Shutemov \u003ckirill@shutemov.name\u003e\nAcked-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Phil Carmody \u003cext-phil.2.carmody@nokia.com\u003e\nCc: Balbir Singh \u003cbalbir@linux.vnet.ibm.com\u003e\nCc: Daisuke Nishimura \u003cnishimura@mxp.nes.nec.co.jp\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: Li Zefan \u003clizf@cn.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": "174bd1994ec67a6e6191c4ed8e5dac17fa221b84", "tree": "1f1d80d40787dddff4a0b8bc63e70ad2c2981c5c", "parents": [ "2abfb9e1d470f7082e5e20e4b11a271a0124211b" ], "author": { "name": "Stanislaw Gruszka", "email": "stf_xl@wp.pl", "time": "Tue May 25 23:49:12 2010 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed May 26 16:15:37 2010 +0200" }, "message": "hrtimer: Avoid double seqlock\n\nhrtimer_get_softirq_time() has it\u0027s own xtime lock protection, so it\u0027s\nsafe to use plain __current_kernel_time() and avoid the double seqlock\nloop.\n\nSigned-off-by: Stanislaw Gruszka \u003cstf_xl@wp.pl\u003e\nLKML-Reference: \u003c20100525214912.GA1934@r2bh72.net.upc.cz\u003e\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n\n" }, { "commit": "2abfb9e1d470f7082e5e20e4b11a271a0124211b", "tree": "1f8d81f07099bbdf16486570855d130bcffa789d", "parents": [ "8e63d7795e30b4091e303cc8c060509bd8eea742" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed May 26 16:07:13 2010 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed May 26 16:07:13 2010 +0200" }, "message": "timers: Move local variable into else section\n\nFix nit-picking coding style detail.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "b1cdc4670b9508fcd47a15fbd12f70d269880b37", "tree": "fea9e2650170886d539488f8b1e064f6ca60ad36", "parents": [ "ce7d0226198aac42ed311dd2783232adc16b296d", "f925b1303e0672effc78547353bd2ddfe11f5b5f" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 25 16:59:51 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 25 16:59:51 2010 -0700" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (63 commits)\n drivers/net/usb/asix.c: Fix pointer cast.\n be2net: Bug fix to avoid disabling bottom half during firmware upgrade.\n proc_dointvec: write a single value\n hso: add support for new products\n Phonet: fix potential use-after-free in pep_sock_close()\n ath9k: remove VEOL support for ad-hoc\n ath9k: change beacon allocation to prefer the first beacon slot\n sock.h: fix kernel-doc warning\n cls_cgroup: Fix build error when built-in\n macvlan: do proper cleanup in macvlan_common_newlink() V2\n be2net: Bug fix in init code in probe\n net/dccp: expansion of error code size\n ath9k: Fix rx of mcast/bcast frames in PS mode with auto sleep\n wireless: fix sta_info.h kernel-doc warnings\n wireless: fix mac80211.h kernel-doc warnings\n iwlwifi: testing the wrong variable in iwl_add_bssid_station()\n ath9k_htc: rare leak in ath9k_hif_usb_alloc_tx_urbs()\n ath9k_htc: dereferencing before check in hif_usb_tx_cb()\n rt2x00: Fix rt2800usb TX descriptor writing.\n rt2x00: Fix failed SLEEP-\u003eAWAKE and AWAKE-\u003eSLEEP transitions.\n ...\n" }, { "commit": "218ce7351413b8287a80fab1d7b94906a5559f01", "tree": "36ba694491fa39fbde719b889a89cadbedd1f357", "parents": [ "ec96e2fe954c23a54bfdf2673437a39e193a1822" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 25 16:48:30 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 25 16:48:30 2010 -0700" }, "message": "Revert \"module: drop the lock while waiting for module to complete initialization.\"\n\nThis reverts commit 480b02df3aa9f07d1c7df0cd8be7a5ca73893455, since\nRafael reports that it causes occasional kernel paging request faults in\nload_module().\n\nDropping the module lock and re-taking it deep in the call-chain is\ndefinitely not the right thing to do. That just turns the mutex from a\nlock into a \"random non-locking data structure\" that doesn\u0027t actually\nprotect what it\u0027s supposed to protect.\n\nRequested-and-tested-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: Brandon Philips \u003cbrandon@ifup.org\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "563b04671017ea00ba563ebeebdc36bce79b1b60", "tree": "02d6ea1c9a3ae42b10f328aa0b51740677456793", "parents": [ "dd7496f217462a23a9a8a15b9925866eaad76e22" ], "author": { "name": "J. R. Okajima", "email": "hooanon05@yahoo.co.jp", "time": "Tue May 25 16:10:14 2010 -0700" }, "committer": { "name": "David S. Miller", "email": "davem@davemloft.net", "time": "Tue May 25 16:10:14 2010 -0700" }, "message": "proc_dointvec: write a single value\n\nThe commit 00b7c3395aec3df43de5bd02a3c5a099ca51169f\n\"sysctl: refactor integer handling proc code\"\nmodified the behaviour of writing to /proc.\nBefore the commit, write(\"1\\n\") to /proc/sys/kernel/printk succeeded. But\nnow it returns EINVAL.\n\nThis commit supports writing a single value to a multi-valued entry.\n\nSigned-off-by: J. R. Okajima \u003chooanon05@yahoo.co.jp\u003e\nReviewed-and-tested-by: WANG Cong \u003camwang@redhat.com\u003e\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\n" }, { "commit": "8e63d7795e30b4091e303cc8c060509bd8eea742", "tree": "d5433cf6b0a57b72b0220ff8e1d89ceca6fbd49c", "parents": [ "f16a5e347835c6a0ba958535cf6e6c89d50463b8" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue May 25 20:43:30 2010 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue May 25 21:07:48 2010 +0200" }, "message": "timers: Fix slack calculation really\n\ncommit f00e047ef (timers: Fix slack calculation for expired timers)\nfixed the issue of slack on expired timers only partially. Linus\nnoticed that jiffies is volatile so it is reloaded twice, which\ngenerates bad code.\n\nBut its worse. This can defeat the time_after() check if jiffies are\nincremented between time_after() and the slack calculation.\n\nFix it by reading jiffies into a local variable, which prevents the\ncompiler from loading it twice. While at it make the \u003e -1 check into\n\u003e\u003d 0 which is easier to read.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nCc: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "2711ca237a084286ea1c2dcf82ab2aadab23a00d", "tree": "a795fa0e31e8557befd803153a33827b1d0c8764", "parents": [ "b3230c8b44da5838cf396942d5c1ab19f8e8f720" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri May 21 13:32:26 2010 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Tue May 25 11:57:26 2010 -0400" }, "message": "ring-buffer: Move zeroing out excess in page to ring buffer code\n\nCurrently the trace splice code zeros out the excess bytes in the page before\nsending it off to userspace.\n\nThis is to make sure userspace is not getting anything it should not be\nwhen reading the pages, because the excess data was never initialized\nto zero before writing (for perfomance reasons).\n\nBut the splice code has no business in doing this work, it should be\ndone by the ring buffer. With the latest changes for recording lost\nevents, the splice code gets it wrong anyway.\n\nMove the zeroing out of excess bytes into the ring buffer code.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "b3230c8b44da5838cf396942d5c1ab19f8e8f720", "tree": "21a212bb598da40cdb936f7b4492d9b05895d4fc", "parents": [ "49c177461bfbedeccbab22bf3905db2f9da7f1c3" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri May 21 11:55:21 2010 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Tue May 25 11:57:24 2010 -0400" }, "message": "ring-buffer: Reset \"real_end\" when page is filled\n\nThe code to store the \"lost events\" requires knowing the real end\nof the page. Since the \u0027commit\u0027 includes the padding at the end of\na page a \"real_end\" variable was used to keep track of the end not\nincluding the padding.\n\nIf events were lost, the reader can place the count of events in\nthe padded area if there is enough room.\n\nThe bug this patch fixes is that when we fill the page we do not\nreset the real_end variable, and if the writer had wrapped a few\ntimes, the real_end would be incorrect.\n\nThis patch simply resets the real_end if the page was filled.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "69e4469a39b67e9923731d5d77d45c04837d5def", "tree": "76c28eba265c6d8b44e31ab7cc16c5940b9f221a", "parents": [ "96b89f323d6af996a7f6bd84d2119cbf7145f9a4" ], "author": { "name": "Andy Shevchenko", "email": "ext-andriy.shevchenko@nokia.com", "time": "Mon May 24 14:33:26 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 25 08:07:05 2010 -0700" }, "message": "sysctl: don\u0027t use own implementation of hex_to_bin()\n\nRemove own implementation of hex_to_bin().\n\nSigned-off-by: Andy Shevchenko \u003cext-andriy.shevchenko@nokia.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" }, { "commit": "7d52669b14e36f8365070324be009486d387ad00", "tree": "ed8965175a485f340f3061855773ca34f1e4f586", "parents": [ "aaa04b4875f30659a0eb429e0e5203ae7fb7b18e" ], "author": { "name": "Wenji Huang", "email": "wenji.huang@oracle.com", "time": "Mon May 24 14:33:12 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 25 08:07:04 2010 -0700" }, "message": "module: remove duplicate declaration of __ksymtab_gpl_future\n\nMinor cleanup on duplicate __{start/stop}__ksymtab_gpl_future.\n\nSigned-off-by: Wenji Huang \u003cwenji.huang@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": "4eaf3f64397c3db3c5785eee508270d62a9fabd9", "tree": "bfd986a7e974876755ea6fe0de394199c68e2e36", "parents": [ "1f522509c77a5dea8dc384b735314f03908a6415" ], "author": { "name": "Haicheng Li", "email": "haicheng.li@linux.intel.com", "time": "Mon May 24 14:32:52 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 25 08:07:02 2010 -0700" }, "message": "mem-hotplug: fix potential race while building zonelist for new populated zone\n\nAdd global mutex zonelists_mutex to fix the possible race:\n\n CPU0 CPU1 CPU2\n(1) zone-\u003epresent_pages +\u003d online_pages;\n(2) build_all_zonelists();\n(3) alloc_page();\n(4) free_page();\n(5) build_all_zonelists();\n(6) __build_all_zonelists();\n(7) zone-\u003epageset \u003d alloc_percpu();\n\nIn step (3,4), zone-\u003epageset still points to boot_pageset, so bad\nthings may happen if 2+ nodes are in this state. Even if only 1 node\nis accessing the boot_pageset, (3) may still consume too much memory\nto fail the memory allocations in step (7).\n\nBesides, atomic operation ensures alloc_percpu() in step (7) will never fail\nsince there is a new fresh memory block added in step(6).\n\n[haicheng.li@linux.intel.com: hold zonelists_mutex when build_all_zonelists]\nSigned-off-by: Haicheng Li \u003chaicheng.li@linux.intel.com\u003e\nSigned-off-by: Wu Fengguang \u003cfengguang.wu@intel.com\u003e\nReviewed-by: Andi Kleen \u003candi.kleen@intel.com\u003e\nCc: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nCc: Mel Gorman \u003cmel@csn.ul.ie\u003e\nCc: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "1f522509c77a5dea8dc384b735314f03908a6415", "tree": "4b848527b90877a8a64c46e8e2d76723405c319d", "parents": [ "319774e25fa4b7641bdc3b0a464dd84e62103347" ], "author": { "name": "Haicheng Li", "email": "haicheng.li@linux.intel.com", "time": "Mon May 24 14:32:51 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 25 08:07:01 2010 -0700" }, "message": "mem-hotplug: avoid multiple zones sharing same boot strapping boot_pageset\n\nFor each new populated zone of hotadded node, need to update its pagesets\nwith dynamically allocated per_cpu_pageset struct for all possible CPUs:\n\n 1) Detach zone-\u003epageset from the shared boot_pageset\n at end of __build_all_zonelists().\n\n 2) Use mutex to protect zone-\u003epageset when it\u0027s still\n shared in onlined_pages()\n\nOtherwises, multiple zones of different nodes would share same boot strapping\nboot_pageset for same CPU, which will finally cause below kernel panic:\n\n ------------[ cut here ]------------\n kernel BUG at mm/page_alloc.c:1239!\n invalid opcode: 0000 [#1] SMP\n ...\n Call Trace:\n [\u003cffffffff811300c1\u003e] __alloc_pages_nodemask+0x131/0x7b0\n [\u003cffffffff81162e67\u003e] alloc_pages_current+0x87/0xd0\n [\u003cffffffff81128407\u003e] __page_cache_alloc+0x67/0x70\n [\u003cffffffff811325f0\u003e] __do_page_cache_readahead+0x120/0x260\n [\u003cffffffff81132751\u003e] ra_submit+0x21/0x30\n [\u003cffffffff811329c6\u003e] ondemand_readahead+0x166/0x2c0\n [\u003cffffffff81132ba0\u003e] page_cache_async_readahead+0x80/0xa0\n [\u003cffffffff8112a0e4\u003e] generic_file_aio_read+0x364/0x670\n [\u003cffffffff81266cfa\u003e] nfs_file_read+0xca/0x130\n [\u003cffffffff8117b20a\u003e] do_sync_read+0xfa/0x140\n [\u003cffffffff8117bf75\u003e] vfs_read+0xb5/0x1a0\n [\u003cffffffff8117c151\u003e] sys_read+0x51/0x80\n [\u003cffffffff8103c032\u003e] system_call_fastpath+0x16/0x1b\n RIP [\u003cffffffff8112ff13\u003e] get_page_from_freelist+0x883/0x900\n RSP \u003cffff88000d1e78a8\u003e\n ---[ end trace 4bda28328b9990db ]\n\n[akpm@linux-foundation.org: merge fix]\nSigned-off-by: Haicheng Li \u003chaicheng.li@linux.intel.com\u003e\nSigned-off-by: Wu Fengguang \u003cfengguang.wu@intel.com\u003e\nReviewed-by: Andi Kleen \u003candi.kleen@intel.com\u003e\nReviewed-by: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nCc: Mel Gorman \u003cmel@csn.ul.ie\u003e\nCc: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "cf23422b9d76215316855253da491d4c9f294372", "tree": "5663d2519d83d830d24dffdf2571d58d3e55d3f6", "parents": [ "8b25c6d2231b978ccce9c401e771932bde79aa9f" ], "author": { "name": "minskey guo", "email": "chaohong_guo@linux.intel.com", "time": "Mon May 24 14:32:41 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 25 08:07:00 2010 -0700" }, "message": "cpu/mem hotplug: enable CPUs online before local memory online\n\nEnable users to online CPUs even if the CPUs belongs to a numa node which\ndoesn\u0027t have onlined local memory.\n\nThe zonlists(pg_data_t.node_zonelists[]) of a numa node are created either\nin system boot/init period, or at the time of local memory online. For a\nnuma node without onlined local memory, its zonelists are not initialized\nat present. As a result, any memory allocation operations executed by\nCPUs within this node will fail. In fact, an out-of-memory error is\ntriggered when attempt to online CPUs before memory comes to online.\n\nThis patch tries to create zonelists for such numa nodes, so that the\nmemory allocation for this node can be fallback\u0027ed to other nodes.\n\n[akpm@linux-foundation.org: remove unneeded export]\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: minskey guo\u003cchaohong.guo@intel.com\u003e\nCc: Minchan Kim \u003cminchan.kim@gmail.com\u003e\nCc: Yasunori Goto \u003cy-goto@jp.fujitsu.com\u003e\nCc: Andi Kleen \u003candi@firstfloor.org\u003e\nCc: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nCc: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "5e7719058079a1423ccce56148b0aaa56b2df821", "tree": "3666cb3d5540dcaa3d8e7df8c293a0ad603a181c", "parents": [ "56de7263fcf3eb10c8dcdf8d59a9cec831795f3f" ], "author": { "name": "Mel Gorman", "email": "mel@csn.ul.ie", "time": "Mon May 24 14:32:31 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 25 08:06:59 2010 -0700" }, "message": "mm: compaction: add a tunable that decides when memory should be compacted and when it should be reclaimed\n\nThe kernel applies some heuristics when deciding if memory should be\ncompacted or reclaimed to satisfy a high-order allocation. One of these\nis based on the fragmentation. If the index is below 500, memory will not\nbe compacted. This choice is arbitrary and not based on data. To help\noptimise the system and set a sensible default for this value, this patch\nadds a sysctl extfrag_threshold. The kernel will only compact memory if\nthe fragmentation index is above the extfrag_threshold.\n\n[randy.dunlap@oracle.com: Fix build errors when proc fs is not configured]\nSigned-off-by: Mel Gorman \u003cmel@csn.ul.ie\u003e\nSigned-off-by: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nCc: Minchan Kim \u003cminchan.kim@gmail.com\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@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": "76ab0f530e4a01d4dc20cdc1d5e87753c579dc18", "tree": "8e1566df85e02f67876685c36d217fec4845f79f", "parents": [ "748446bb6b5a9390b546af38ec899c868a9dbcf0" ], "author": { "name": "Mel Gorman", "email": "mel@csn.ul.ie", "time": "Mon May 24 14:32:28 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 25 08:06:59 2010 -0700" }, "message": "mm: compaction: add /proc trigger for memory compaction\n\nAdd a proc file /proc/sys/vm/compact_memory. When an arbitrary value is\nwritten to the file, all zones are compacted. The expected user of such a\ntrigger is a job scheduler that prepares the system before the target\napplication runs.\n\nSigned-off-by: Mel Gorman \u003cmel@csn.ul.ie\u003e\nAcked-by: Rik van Riel \u003criel@redhat.com\u003e\nReviewed-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nReviewed-by: Minchan Kim \u003cminchan.kim@gmail.com\u003e\nReviewed-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nReviewed-by: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c0ff7453bb5c7c98e0885fb94279f2571946f280", "tree": "8bb2b169a5145f0496575dbd2f48bb4b1c83f819", "parents": [ "708c1bbc9d0c3e57f40501794d9b0eed29d10fce" ], "author": { "name": "Miao Xie", "email": "miaox@cn.fujitsu.com", "time": "Mon May 24 14:32:08 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 25 08:06:57 2010 -0700" }, "message": "cpuset,mm: fix no node to alloc memory when changing cpuset\u0027s mems\n\nBefore applying this patch, cpuset updates task-\u003emems_allowed and\nmempolicy by setting all new bits in the nodemask first, and clearing all\nold unallowed bits later. But in the way, the allocator may find that\nthere is no node to alloc memory.\n\nThe reason is that cpuset rebinds the task\u0027s mempolicy, it cleans the\nnodes which the allocater can alloc pages on, for example:\n\n(mpol: mempolicy)\n\ttask1\t\t\ttask1\u0027s mpol\ttask2\n\talloc page\t\t1\n\t alloc on node0? NO\t1\n\t\t\t\t1\t\tchange mems from 1 to 0\n\t\t\t\t1\t\trebind task1\u0027s mpol\n\t\t\t\t0-1\t\t set new bits\n\t\t\t\t0\t \t clear disallowed bits\n\t alloc on node1? NO\t0\n\t ...\n\tcan\u0027t alloc page\n\t goto oom\n\nThis patch fixes this problem by expanding the nodes range first(set newly\nallowed bits) and shrink it lazily(clear newly disallowed bits). So we\nuse a variable to tell the write-side task that read-side task is reading\nnodemask, and the write-side task clears newly disallowed nodes after\nread-side task ends the current memory allocation.\n\n[akpm@linux-foundation.org: fix spello]\nSigned-off-by: Miao Xie \u003cmiaox@cn.fujitsu.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nCc: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: Lee Schermerhorn \u003clee.schermerhorn@hp.com\u003e\nCc: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nCc: Ravikiran Thirumalai \u003ckiran@scalex86.org\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nCc: Andi Kleen \u003candi@firstfloor.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "708c1bbc9d0c3e57f40501794d9b0eed29d10fce", "tree": "4b19caf68c420b32abdf05af3d413b1320f04fbe", "parents": [ "971ada0f6659488c3f36aed4c6f7670ff5ce4368" ], "author": { "name": "Miao Xie", "email": "miaox@cn.fujitsu.com", "time": "Mon May 24 14:32:07 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 25 08:06:57 2010 -0700" }, "message": "mempolicy: restructure rebinding-mempolicy functions\n\nNick Piggin reported that the allocator may see an empty nodemask when\nchanging cpuset\u0027s mems[1]. It happens only on the kernel that do not do\natomic nodemask_t stores. (MAX_NUMNODES \u003e BITS_PER_LONG)\n\nBut I found that there is also a problem on the kernel that can do atomic\nnodemask_t stores. The problem is that the allocator can\u0027t find a node to\nalloc page when changing cpuset\u0027s mems though there is a lot of free\nmemory. The reason is like this:\n\n(mpol: mempolicy)\n\ttask1\t\t\ttask1\u0027s mpol\ttask2\n\talloc page\t\t1\n\t alloc on node0? NO\t1\n\t\t\t\t1\t\tchange mems from 1 to 0\n\t\t\t\t1\t\trebind task1\u0027s mpol\n\t\t\t\t0-1\t\t set new bits\n\t\t\t\t0\t \t clear disallowed bits\n\t alloc on node1? NO\t0\n\t ...\n\tcan\u0027t alloc page\n\t goto oom\n\nI can use the attached program reproduce it by the following step:\n\n# mkdir /dev/cpuset\n# mount -t cpuset cpuset /dev/cpuset\n# mkdir /dev/cpuset/1\n# echo `cat /dev/cpuset/cpus` \u003e /dev/cpuset/1/cpus\n# echo `cat /dev/cpuset/mems` \u003e /dev/cpuset/1/mems\n# echo $$ \u003e /dev/cpuset/1/tasks\n# numactl --membind\u003d`cat /dev/cpuset/mems` ./cpuset_mem_hog \u003cnr_tasks\u003e \u0026\n \u003cnr_tasks\u003e \u003d max(nr_cpus - 1, 1)\n# killall -s SIGUSR1 cpuset_mem_hog\n# ./change_mems.sh\n\nseveral hours later, oom will happen though there is a lot of free memory.\n\nThis patchset fixes this problem by expanding the nodes range first(set\nnewly allowed bits) and shrink it lazily(clear newly disallowed bits). So\nwe use a variable to tell the write-side task that read-side task is\nreading nodemask, and the write-side task clears newly disallowed nodes\nafter read-side task ends the current memory allocation.\n\nThis patch:\n\nIn order to fix no node to alloc memory, when we want to update mempolicy\nand mems_allowed, we expand the set of nodes first (set all the newly\nnodes) and shrink the set of nodes lazily(clean disallowed nodes), But the\nmempolicy\u0027s rebind functions may breaks the expanding.\n\nSo we restructure the mempolicy\u0027s rebind functions and split the rebind\nwork to two steps, just like the update of cpuset\u0027s mems: The 1st step:\nexpand the set of the mempolicy\u0027s nodes. The 2nd step: shrink the set of\nthe mempolicy\u0027s nodes. It is used when there is no real lock to protect\nthe mempolicy in the read-side. Otherwise we can do rebind work at once.\n\nIn order to implement it, we define\n\n\tenum mpol_rebind_step {\n\t\tMPOL_REBIND_ONCE,\n\t\tMPOL_REBIND_STEP1,\n\t\tMPOL_REBIND_STEP2,\n\t\tMPOL_REBIND_NSTEP,\n\t};\n\nIf the mempolicy needn\u0027t be updated by two steps, we can pass\nMPOL_REBIND_ONCE to the rebind functions. Or we can pass\nMPOL_REBIND_STEP1 to do the first step of the rebind work and pass\nMPOL_REBIND_STEP2 to do the second step work.\n\nBesides that, it maybe long time between these two step and we have to\nrelease the lock that protects mempolicy and mems_allowed. If we hold the\nlock once again, we must check whether the current mempolicy is under the\nrebinding (the first step has been done) or not, because the task may\nalloc a new mempolicy when we don\u0027t hold the lock. So we defined the\nfollowing flag to identify it:\n\n#define MPOL_F_REBINDING (1 \u003c\u003c 2)\n\nThe new functions will be used in the next patch.\n\nSigned-off-by: Miao Xie \u003cmiaox@cn.fujitsu.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nCc: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: Lee Schermerhorn \u003clee.schermerhorn@hp.com\u003e\nCc: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nCc: Ravikiran Thirumalai \u003ckiran@scalex86.org\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nCc: Andi Kleen \u003candi@firstfloor.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "87f44bbc246c5244c76a701f8eefba7788bce64a", "tree": "1370af780bf3bae9e025766f5bbfa9418bb8b68b", "parents": [ "d67f088e084755bdceb4f15bc6e05e309db1eea7" ], "author": { "name": "Peter Zijlstra", "email": "peterz@infradead.org", "time": "Tue May 25 11:02:55 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue May 25 11:28:49 2010 +0200" }, "message": "perf, trace: Fix !x86 build bug\n\nPatch b7e2ecef92 (perf, trace: Optimize tracepoints by removing\nIRQ-disable from perf/tracepoint interaction) made the\nunfortunate mistake of assuming the world is x86 only, correct\nthis.\n\nThe problem was that perf_fetch_caller_regs() did\nlocal_save_flags() into regs-\u003eflags, and I re-used that to\nremove another local_save_flags(), forgetting !x86 doesn\u0027t have\nregs-\u003eflags.\n\nDo the reverse, remove the local_save_flags() from\nperf_fetch_caller_regs() and let the ftrace site do the\nlocal_save_flags() instead.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: acme@redhat.com\nCc: efault@gmx.de\nCc: fweisbec@gmail.com\nCc: rostedt@goodmis.org\nLKML-Reference: \u003c1274778175.5882.623.camel@twins\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "f00e047efdf9d31c8a7dd7875b411f97cfa7d8e5", "tree": "4f6af8a7025480aa5d35e438acda9011526406ce", "parents": [ "bd45b7a385c5ffd82c11a1d51880be18559e5ad9" ], "author": { "name": "Jeff Chua", "email": "jeff.chua.linux@gmail.com", "time": "Mon May 24 07:16:24 2010 +0800" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon May 24 12:10:23 2010 +0200" }, "message": "timers: Fix slack calculation for expired timers\n\ncommit 3bbb9ec946 (timers: Introduce the concept of timer slack for\nlegacy timers) does not take the case into account when the timer is\nalready expired. This broke wireless drivers.\n\nThe solution is not to apply slack to already expired timers.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Arjan van de Ven \u003carjan@linux.intel.com\u003e\n" }, { "commit": "bd45b7a385c5ffd82c11a1d51880be18559e5ad9", "tree": "d5fb7949b599a0a0aa86233d8c3118cc5b0bf9b9", "parents": [ "f4b87dee923342505e1ddba8d34ce9de33e75050" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Sun May 23 08:14:45 2010 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon May 24 11:50:38 2010 +0200" }, "message": "timekeeping: Fix timezone update\n\ncommit 64ce4c2f (time: Clean up warp_clock()) breaks the timezone\nupdate in a very subtle way. To avoid the direct access to timekeeping\ninternals it adds the timezone delta to the current time with\ntimespec_add_safe(). This works nicely when the timezone delta is \u003e 0.\nIf timezone delta is \u003c 0 then the wrap check in timespec_add_safe()\ntriggers and timespec_add_safe() returns TIME_MAX and screws up\ntimekeeping completely. \n\nThe comment above timespec_add_safe() says:\n It\u0027s assumed that both values are valid (\u003e\u003d 0)\n\nAdd the timezone seconds adjustment directly.\n\nReported-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nTested-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nAcked-by: John Stultz \u003cjohnstul@us.ibm.com\u003e\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "6109e2ce2600e2db26cd0424bb9c6ed019723288", "tree": "54b5d347bf12e0a987edfb52f287399f748a9a38", "parents": [ "0961d6581c870850342ad6ea25263763433d666f", "ac81860ea073daed50246af54db706c6e491f240" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri May 21 18:58:52 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri May 21 18:58:52 2010 -0700" }, "message": "Merge branch \u0027linux-next\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6\n\n* \u0027linux-next\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (36 commits)\n PCI: hotplug: pciehp: Removed check for hotplug of display devices\n PCI: read memory ranges out of Broadcom CNB20LE host bridge\n PCI: Allow manual resource allocation for PCI hotplug bridges\n x86/PCI: make ACPI MCFG reserved error messages ACPI specific\n PCI hotplug: Use kmemdup\n PM/PCI: Update PCI power management documentation\n PCI: output FW warning in pci_read/write_vpd\n PCI: fix typos pci_device_dis/enable to pci_dis/enable_device in comments\n PCI quirks: disable msi on AMD rs4xx internal gfx bridges\n PCI: Disable MSI for MCP55 on P5N32-E SLI\n x86/PCI: irq and pci_ids patch for additional Intel Cougar Point DeviceIDs\n PCI: aerdrv: trivial cleanup for aerdrv_core.c\n PCI: aerdrv: trivial cleanup for aerdrv.c\n PCI: aerdrv: introduce default_downstream_reset_link\n PCI: aerdrv: rework find_aer_service\n PCI: aerdrv: remove is_downstream\n PCI: aerdrv: remove magical ROOT_ERR_STATUS_MASKS\n PCI: aerdrv: redefine PCI_ERR_ROOT_*_SRC\n PCI: aerdrv: rework do_recovery\n PCI: aerdrv: rework get_e_source()\n ...\n" }, { "commit": "0961d6581c870850342ad6ea25263763433d666f", "tree": "371c61fd7f621397907983031003e784a040402e", "parents": [ "1756ac3d3c41341297ea25b818b7fce505bb2a9a", "fd0c8894893cba722bdea12de25b49f980795d06" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri May 21 17:25:01 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri May 21 17:25:01 2010 -0700" }, "message": "Merge git://git.infradead.org/iommu-2.6\n\n* git://git.infradead.org/iommu-2.6:\n intel-iommu: Set a more specific taint flag for invalid BIOS DMAR tables\n intel-iommu: Combine the BIOS DMAR table warning messages\n panic: Add taint flag TAINT_FIRMWARE_WORKAROUND (\u0027I\u0027)\n panic: Allow warnings to set different taint flags\n intel-iommu: intel_iommu_map_range failed at very end of address space\n intel-iommu: errors with smaller iommu widths\n intel-iommu: Fix boot inside 64bit virtualbox with io-apic disabled\n intel-iommu: use physfn to search drhd for VF\n intel-iommu: Print out iommu seq_id\n intel-iommu: Don\u0027t complain that ACPI_DMAR_SCOPE_TYPE_IOAPIC is not supported\n intel-iommu: Avoid global flushes with caching mode.\n intel-iommu: Use correct domain ID when caching mode is enabled\n intel-iommu mistakenly uses offset_pfn when caching mode is enabled\n intel-iommu: use for_each_set_bit()\n intel-iommu: Fix section mismatch dmar_ir_support() uses dmar_tbl.\n" }, { "commit": "a8251096b427283c47e7d8f9568be6b388dd68ec", "tree": "edc9747e30b4b4413aa99acfbd3104d81b1c303b", "parents": [ "27a3353a4525afe984f3b793681869d636136b69", "480b02df3aa9f07d1c7df0cd8be7a5ca73893455" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri May 21 17:15:44 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri May 21 17:15:44 2010 -0700" }, "message": "Merge branch \u0027modules\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus\n\n* \u0027modules\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:\n module: drop the lock while waiting for module to complete initialization.\n MODULE_DEVICE_TABLE(isapnp, ...) does nothing\n hisax_fcpcipnp: fix broken isapnp device table.\n isapnp: move definitions to mod_devicetable.h so file2alias can reach them.\n" }, { "commit": "6e80e8ed5eb92d0112674aabe82951266a6a1051", "tree": "4913d191cd088f355b92109af5ffa7d75e15ae4a", "parents": [ "6969a434737dd82f7343e3fcd529bc320508d9fc", "ee9a3607fb03e804ddf624544105f4e34260c380" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri May 21 15:25:33 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri May 21 15:25:33 2010 -0700" }, "message": "Merge branch \u0027for-2.6.35\u0027 of git://git.kernel.dk/linux-2.6-block\n\n* \u0027for-2.6.35\u0027 of git://git.kernel.dk/linux-2.6-block: (86 commits)\n pipe: set lower and upper limit on max pages in the pipe page array\n pipe: add support for shrinking and growing pipes\n drbd: This is now equivalent to drbd release 8.3.8rc1\n drbd: Do not free p_uuid early, this is done in the exit code of the receiver\n drbd: Null pointer deref fix to the large \"multi bio rewrite\"\n drbd: Fix: Do not detach, if a bio with a barrier fails\n drbd: Ensure to not trigger late-new-UUID creation multiple times\n drbd: Do not Oops when C_STANDALONE when uuid gets generated\n writeback: fix mixed up arguments to bdi_start_writeback()\n writeback: fix problem with !CONFIG_BLOCK compilation\n block: improve automatic native capacity unlocking\n block: use struct parsed_partitions *state universally in partition check code\n block,ide: simplify bdops-\u003eset_capacity() to -\u003eunlock_native_capacity()\n block: restart partition scan after resizing a device\n buffer: make invalidate_bdev() drain all percpu LRU add caches\n block: remove all rcu head initializations\n writeback: fixups for !dirty_writeback_centisecs\n writeback: bdi_writeback_task() must set task state before calling schedule()\n writeback: ensure that WB_SYNC_NONE writeback with sb pinned is sync\n drivers/block/drbd: Use kzalloc\n ...\n" }, { "commit": "0fc377bd648d1935ea34665239e3f0a274b71698", "tree": "cda5fe0553b2d84bb3fc14eca9d5bb7c72ea374e", "parents": [ "1f7f314bf2a77f1d499b41001ebdafb261f00f30" ], "author": { "name": "Randy Dunlap", "email": "randy.dunlap@oracle.com", "time": "Fri May 21 11:29:53 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri May 21 15:23:12 2010 -0700" }, "message": "sysctl: fix kernel-doc notation and typos\n\nFix kernel-doc warnings, kernel-doc special characters, and\ntypos in recent kernel/sysctl.c additions.\n\nSigned-off-by: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nCc: Amerigo Wang \u003camwang@redhat.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "2a8ba8f032160552a3beffab8aae9019ff477504", "tree": "b50f70a3c8f7c2e179e1587d33ea3542d68525f9", "parents": [ "ec2a7587e0a91d5c1afe23a0a73edfce06c5e4e0", "e954bc91bdd4bb08b8325478c5004b24a23a3522" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri May 21 14:46:51 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri May 21 14:46:51 2010 -0700" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (46 commits)\n random: simplify fips mode\n crypto: authenc - Fix cryptlen calculation\n crypto: talitos - add support for sha224\n crypto: talitos - add hash algorithms\n crypto: talitos - second prepare step for adding ahash algorithms\n crypto: talitos - prepare for adding ahash algorithms\n crypto: n2 - Add Niagara2 crypto driver\n crypto: skcipher - Add ablkcipher_walk interfaces\n crypto: testmgr - Add testing for async hashing and update/final\n crypto: tcrypt - Add speed tests for async hashing\n crypto: scatterwalk - Fix scatterwalk_done() test\n crypto: hifn_795x - Rename ablkcipher_walk to hifn_cipher_walk\n padata: Use get_online_cpus/put_online_cpus in padata_free\n padata: Add some code comments\n padata: Flush the padata queues actively\n padata: Use a timer to handle remaining objects in the reorder queues\n crypto: shash - Remove usage of CRYPTO_MINALIGN\n crypto: mv_cesa - Use resource_size\n crypto: omap - OMAP macros corrected\n padata: Use get_online_cpus/put_online_cpus\n ...\n\nFix up conflicts in arch/arm/mach-omap2/devices.c\n" }, { "commit": "ee9a3607fb03e804ddf624544105f4e34260c380", "tree": "ce41b6e0fa10982a306f6c142a92dbf3c9961284", "parents": [ "b492e95be0ae672922f4734acf3f5d35c30be948", "d515e86e639890b33a09390d062b0831664f04a2" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri May 21 21:27:26 2010 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri May 21 21:27:26 2010 +0200" }, "message": "Merge branch \u0027master\u0027 into for-2.6.35\n\nConflicts:\n\tfs/ext3/fsync.c\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "b492e95be0ae672922f4734acf3f5d35c30be948", "tree": "a8a1e7f035903796e6b8f626add8d269bf989a35", "parents": [ "35f3d14dbbc58447c61e38a162ea10add6b31dc7" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Wed May 19 21:03:16 2010 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri May 21 21:12:52 2010 +0200" }, "message": "pipe: set lower and upper limit on max pages in the pipe page array\n\nWe need at least two to guarantee proper POSIX behaviour, so\nnever allow a smaller limit than that.\n\nAlso expose a /proc/sys/fs/pipe-max-pages sysctl file that allows\nroot to define a sane upper limit. Make it default to 16 times the\ndefault size, which is 16 pages.\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "35f3d14dbbc58447c61e38a162ea10add6b31dc7", "tree": "3e03cd540b7dcdac82195c4e76862c0ce6daaaf0", "parents": [ "3d42b3612891baecf709d93f28655a6882a65d41" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu May 20 10:43:18 2010 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri May 21 21:12:40 2010 +0200" }, "message": "pipe: add support for shrinking and growing pipes\n\nThis patch adds F_GETPIPE_SZ and F_SETPIPE_SZ fcntl() actions for\ngrowing and shrinking the size of a pipe and adjusts pipe.c and splice.c\n(and relay and network splice) usage to work with these larger (or smaller)\npipes.\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "ac3ee84c604502240122c47b52f0542ec8774f15", "tree": "fa74b50e310af6cef3298a052514b2d42b260d6b", "parents": [ "90b9a32d8f441369b2f97a765d2d957b531eb653", "4fe1da4ebc18c4c42fa56c228447f68033fce5f0" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri May 21 11:10:41 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri May 21 11:10:41 2010 -0700" }, "message": "Merge branch \u0027dbg-early-merge\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb\n\n* \u0027dbg-early-merge\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb:\n echi-dbgp: Add kernel debugger support for the usb debug port\n earlyprintk,vga,kdb: Fix \\b and \\r for earlyprintk\u003dvga with kdb\n kgdboc: Add ekgdboc for early use of the kernel debugger\n x86,early dr regs,kgdb: Allow kernel debugger early dr register access\n x86,kgdb: Implement early hardware breakpoint debugging\n x86, kgdb, init: Add early and late debug states\n x86, kgdb: early trap init for early debug\n" }, { "commit": "90b9a32d8f441369b2f97a765d2d957b531eb653", "tree": "3146d251a983ba12226e75c121613de6f051af8b", "parents": [ "8b108c609adefd98577c35f0a41497a610041a6c", "4402c153cb9c549cd21d6007ef0dfac50c8d148d" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri May 21 11:08:05 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri May 21 11:08:05 2010 -0700" }, "message": "Merge branch \u0027kdb-merge\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb\n\n* \u0027kdb-merge\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb: (25 commits)\n kdb,debug_core: Allow the debug core to receive a panic notification\n MAINTAINERS: update kgdb, kdb, and debug_core info\n debug_core,kdb: Allow the debug core to process a recursive debug entry\n printk,kdb: capture printk() when in kdb shell\n kgdboc,kdb: Allow kdb to work on a non open console port\n kgdb: Add the ability to schedule a breakpoint via a tasklet\n mips,kgdb: kdb low level trap catch and stack trace\n powerpc,kgdb: Introduce low level trap catching\n x86,kgdb: Add low level debug hook\n kgdb: remove post_primary_code references\n kgdb,docs: Update the kgdb docs to include kdb\n kgdboc,keyboard: Keyboard driver for kdb with kgdb\n kgdb: gdb \"monitor\" -\u003e kdb passthrough\n sparc,sunzilog: Add console polling support for sunzilog serial driver\n sh,sh-sci: Use NO_POLL_CHAR in the SCIF polled console code\n kgdb,8250,pl011: Return immediately from console poll\n kgdb: core changes to support kdb\n kdb: core for kgdb back end (2 of 2)\n kdb: core for kgdb back end (1 of 2)\n kgdb,blackfin: Add in kgdb_arch_set_pc for blackfin\n ...\n" }, { "commit": "2c3c8bea608866d8bd9dcf92657d57fdcac011c5", "tree": "f509b958d0a65c46c831dbdd447a81e706dd995a", "parents": [ "68d75ed4b84a0806ecd4bc14da4759713b23a532" ], "author": { "name": "Chris Wright", "email": "chrisw@sous-sol.org", "time": "Wed May 12 18:28:57 2010 -0700" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Fri May 21 09:37:31 2010 -0700" }, "message": "sysfs: add struct file* to bin_attr callbacks\n\nThis allows bin_attr-\u003eread,write,mmap callbacks to check file specific data\n(such as inode owner) as part of any privilege validation.\n\nSigned-off-by: Chris Wright \u003cchrisw@sous-sol.org\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n" }, { "commit": "1704f47b50b5d9e1b825e43e1baaf2c5897baf03", "tree": "60617ff867624f915f75a502f2207de5e586757a", "parents": [ "3142788b7967ccfd2f1813ee9e11aeb1e1cf7de2" ], "author": { "name": "Peter Zijlstra", "email": "peterz@infradead.org", "time": "Fri Mar 19 01:37:42 2010 +0100" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Fri May 21 09:37:30 2010 -0700" }, "message": "lockdep: Add novalidate class for dev-\u003emutex conversion\n\nThe conversion of device-\u003esem to device-\u003emutex resulted in lockdep\nwarnings. Create a novalidate class for now until the driver folks\ncome up with separate classes. That way we have at least the basic\nmutex debugging coverage.\n\nAdd a checkpatch error so the usage is reserved for device-\u003emutex.\n\n[ tglx: checkpatch and compile fix for LOCKDEP\u003dn ]\n\nSigned-off-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n" }, { "commit": "db1afffab0b5d9f6d31f8f4bea44c9cb3bc59351", "tree": "5ba8fd7a5018c0772d999b8c3aa945c0efb929e0", "parents": [ "dd336c554d8926c3348a2d5f2a5ef5597f6d1a06" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Tue Mar 16 15:14:51 2010 +1100" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Fri May 21 09:37:29 2010 -0700" }, "message": "kref: remove kref_set\n\nOf the three uses of kref_set in the kernel:\n\n One really should be kref_put as the code is letting go of a\n reference,\n Two really should be kref_init because the kref is being\n initialised.\n\nThis suggests that making kref_set available encourages bad code.\nSo fix the three uses and remove kref_set completely.\n\nSigned-off-by: NeilBrown \u003cneilb@suse.de\u003e\nAcked-by: Mimi Zohar \u003czohar@us.ibm.com\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n" }, { "commit": "ff5f149b6aec8edbfa3698721667acd043009a33", "tree": "d052553eb296dfee3f01b1cb2b717cb7ccf3127a", "parents": [ "f0218b3e9974f06014b61be8987159f4a20e011e", "580d607cd666dfabfc1c7b0fb08c8ac690c7c87f" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri May 21 11:49:57 2010 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri May 21 11:49:57 2010 -0400" }, "message": "Merge branch \u0027perf/core\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip into trace/tip/tracing/core-7\n\nConflicts:\n\tinclude/linux/ftrace_event.h\n\tinclude/trace/ftrace.h\n\tkernel/trace/trace_event_perf.c\n\tkernel/trace/trace_kprobe.c\n\tkernel/trace/trace_syscalls.c\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "33cf23b0a535475aead57707cb9f4fe135a93544", "tree": "67e14f77f0eeab847a26a6cbfcb44eecb5fa2fda", "parents": [ "7a9b149212f3716c598afe973b6261fd58453b7a", "95bb335c0ebe96afe926387a1ef3a096bd884a82" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri May 21 07:19:18 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri May 21 07:19:18 2010 -0700" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (182 commits)\n [SCSI] aacraid: add an ifdef\u0027d device delete case instead of taking the device offline\n [SCSI] aacraid: prohibit access to array container space\n [SCSI] aacraid: add support for handling ATA pass-through commands.\n [SCSI] aacraid: expose physical devices for models with newer firmware\n [SCSI] aacraid: respond automatically to volumes added by config tool\n [SCSI] fcoe: fix fcoe module ref counting\n [SCSI] libfcoe: FIP Keep-Alive messages for VPorts are sent with incorrect port_id and wwn\n [SCSI] libfcoe: Fix incorrect MAC address clearing\n [SCSI] fcoe: fix a circular locking issue with rtnl and sysfs mutex\n [SCSI] libfc: Move the port_id into lport\n [SCSI] fcoe: move link speed checking into its own routine\n [SCSI] libfc: Remove extra pointer check\n [SCSI] libfc: Remove unused fc_get_host_port_type\n [SCSI] fcoe: fixes wrong error exit in fcoe_create\n [SCSI] libfc: set seq_id for incoming sequence\n [SCSI] qla2xxx: Updates to ISP82xx support.\n [SCSI] qla2xxx: Optionally disable target reset.\n [SCSI] qla2xxx: ensure flash operation and host reset via sg_reset are mutually exclusive\n [SCSI] qla2xxx: Silence bogus warning by gcc for wrap and did.\n [SCSI] qla2xxx: T10 DIF support added.\n ...\n" }, { "commit": "580d607cd666dfabfc1c7b0fb08c8ac690c7c87f", "tree": "6d7c87d60b12adbacd4dbcb8c784975bc1203228", "parents": [ "a94ffaaf55552769af328eaca9260fe6291c66c7" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu May 20 20:54:31 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri May 21 11:38:00 2010 +0200" }, "message": "perf: Optimize perf_tp_event_match()\n\nSince we know tracepoints come from kernel context,\navoid conditionals that try and establish that very\nfact.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c20100521090710.904944001@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "a94ffaaf55552769af328eaca9260fe6291c66c7", "tree": "39339b21a962b50c6f8be09786fcb41cdc4a8459", "parents": [ "3cafa9fbb5c1d564b7b8e7224f493effbf04ffee" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu May 20 19:50:07 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri May 21 11:37:59 2010 +0200" }, "message": "perf: Remove more code from the fastpath\n\nSanity checks cost instructions.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c20100521090710.852926930@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "3cafa9fbb5c1d564b7b8e7224f493effbf04ffee", "tree": "c046895789900e8a031b241e79e7f0d45d7e39f0", "parents": [ "5d967a8be636a4f301a8daad642bd1007299d9ec" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu May 20 19:07:56 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri May 21 11:37:59 2010 +0200" }, "message": "perf: Optimize the !vmalloc backed buffer\n\nReduce code and data by using the knowledge that for\n!PERF_USE_VMALLOC data_order is always 0.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c20100521090710.795019386@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "5d967a8be636a4f301a8daad642bd1007299d9ec", "tree": "a55fa9c068f4a25a0de62797994353a36e165ca5", "parents": [ "adb8e118f288dc4c569ac9a89010b81a4745fbf0" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu May 20 16:46:39 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri May 21 11:37:59 2010 +0200" }, "message": "perf: Optimize perf_output_copy()\n\nReduce the clutter in perf_output_copy() by keeping\nan interator in perf_output_handle.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c20100521090710.742809176@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "adb8e118f288dc4c569ac9a89010b81a4745fbf0", "tree": "40f2bbbe7c59fb4b4a44120fa9cc79822b68e545", "parents": [ "0e2e63dd608bf5844ffae7bf7d860de18a62724c" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu May 20 16:21:55 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri May 21 11:37:58 2010 +0200" }, "message": "perf: Fix wakeup storm for RO mmap()s\n\nRO mmap()s don\u0027t update the tail pointer, so\ncomparing against it for determining the written data\nsize doesn\u0027t really do any good.\n\nKeep track of when we last did a wakeup, and compare\nagainst that.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c20100521090710.684479310@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "0f139300c9057c16b5833a4636b715b104fe0baa", "tree": "e7b19c4fc8599fb683cee1b618b28a8aa16208e2", "parents": [ "1c024eca51fdc965290acf342ae16a476c2189d0" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu May 20 14:35:15 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri May 21 11:37:57 2010 +0200" }, "message": "perf: Ensure that IOC_OUTPUT isn\u0027t used to create multi-writer buffers\n\nSince we want to ensure buffers only have a single\nwriter, we must avoid creating one with multiple.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c20100521090710.528215873@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "1c024eca51fdc965290acf342ae16a476c2189d0", "tree": "28dc160cc70a20eeb8b8825d6d52ea88a6188413", "parents": [ "b7e2ecef92d2e7785e6d76b41e5ba8bcbc45259d" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Wed May 19 14:02:22 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri May 21 11:37:56 2010 +0200" }, "message": "perf, trace: Optimize tracepoints by using per-tracepoint-per-cpu hlist to track events\n\nAvoid the swevent hash-table by using per-tracepoint\nhlists.\n\nAlso, avoid conditionals on the fast path by ordering\nwith probe unregister so that we should never get on\nthe callback path without the data being there.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c20100521090710.473188012@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b7e2ecef92d2e7785e6d76b41e5ba8bcbc45259d", "tree": "341c3a03743108bbdf82ee0eed9f4c4085f1b694", "parents": [ "1c34bde13a3cdcd4c7c6322f8052e67c2c91caf1" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Wed May 19 10:52:27 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri May 21 11:37:56 2010 +0200" }, "message": "perf, trace: Optimize tracepoints by removing IRQ-disable from perf/tracepoint interaction\n\nImproves performance.\n\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c1274259525.5605.10352.camel@twins\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "7a9b149212f3716c598afe973b6261fd58453b7a", "tree": "477716d84c71da124448b72278e98da28aadbd3d", "parents": [ "3d62e3fdce8ef265a3706c52ae1ca6ab84e30f0e", "e26bcf37234c67624f62d9fc95f922b8dbda1363" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 20 21:26:12 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 20 21:26:12 2010 -0700" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (229 commits)\n USB: remove unused usb_buffer_alloc and usb_buffer_free macros\n usb: musb: update gfp/slab.h includes\n USB: ftdi_sio: fix legacy SIO-device header\n USB: kl5usb105: reimplement using generic framework\n USB: kl5usb105: minor clean ups\n USB: kl5usb105: fix memory leak\n USB: io_ti: use kfifo to implement write buffering\n USB: io_ti: remove unsused private counter\n USB: ti_usb: use kfifo to implement write buffering\n USB: ir-usb: fix incorrect write-buffer length\n USB: aircable: fix incorrect write-buffer length\n USB: safe_serial: straighten out read processing\n USB: safe_serial: reimplement read using generic framework\n USB: safe_serial: reimplement write using generic framework\n usb-storage: always print quirks\n USB: usb-storage: trivial debug improvements\n USB: oti6858: use port write fifo\n USB: oti6858: use kfifo to implement write buffering\n USB: cypress_m8: use kfifo to implement write buffering\n USB: cypress_m8: remove unused drain define\n ...\n\nFix up conflicts (due to usb_buffer_alloc/free renaming) in\n\tdrivers/input/tablet/acecad.c\n\tdrivers/input/tablet/kbtab.c\n\tdrivers/input/tablet/wacom_sys.c\n\tdrivers/media/video/gspca/gspca.c\n\tsound/usb/usbaudio.c\n" }, { "commit": "f8965467f366fd18f01feafb5db10512d7b4422c", "tree": "3706a9cd779859271ca61b85c63a1bc3f82d626e", "parents": [ "a26272e5200765691e67d6780e52b32498fdb659", "2ec8c6bb5d8f3a62a79f463525054bae1e3d4487" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 20 21:04:44 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 20 21:04:44 2010 -0700" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1674 commits)\n qlcnic: adding co maintainer\n ixgbe: add support for active DA cables\n ixgbe: dcb, do not tag tc_prio_control frames\n ixgbe: fix ixgbe_tx_is_paused logic\n ixgbe: always enable vlan strip/insert when DCB is enabled\n ixgbe: remove some redundant code in setting FCoE FIP filter\n ixgbe: fix wrong offset to fc_frame_header in ixgbe_fcoe_ddp\n ixgbe: fix header len when unsplit packet overflows to data buffer\n ipv6: Never schedule DAD timer on dead address\n ipv6: Use POSTDAD state\n ipv6: Use state_lock to protect ifa state\n ipv6: Replace inet6_ifaddr-\u003edead with state\n cxgb4: notify upper drivers if the device is already up when they load\n cxgb4: keep interrupts available when the ports are brought down\n cxgb4: fix initial addition of MAC address\n cnic: Return SPQ credit to bnx2x after ring setup and shutdown.\n cnic: Convert cnic_local_flags to atomic ops.\n can: Fix SJA1000 command register writes on SMP systems\n bridge: fix build for CONFIG_SYSFS disabled\n ARCNET: Limit com20020 PCI ID matches for SOHARD cards\n ...\n\nFix up various conflicts with pcmcia tree drivers/net/\n{pcmcia/3c589_cs.c, wireless/orinoco/orinoco_cs.c and\nwireless/orinoco/spectrum_cs.c} and feature removal\n(Documentation/feature-removal-schedule.txt).\n\nAlso fix a non-content conflict due to pm_qos_requirement getting\nrenamed in the PM tree (now pm_qos_request) in net/mac80211/scan.c\n" }, { "commit": "0b4b3827db386ec6034a5aba1261025b039440c2", "tree": "a3469de6930fe3e850c8e4c49c26a2a3b53612dd", "parents": [ "29c843912a0baa7fa63033fe28e1ca7e796686a5" ], "author": { "name": "Jason Wessel", "email": "jason.wessel@windriver.com", "time": "Thu May 20 21:04:29 2010 -0500" }, "committer": { "name": "Jason Wessel", "email": "jason.wessel@windriver.com", "time": "Thu May 20 21:04:29 2010 -0500" }, "message": "x86, kgdb, init: Add early and late debug states\n\nThe kernel debugger can operate well before mm_init(), but the x86\nhardware breakpoint code which uses the perf api requires that the\nkernel allocators are initialized.\n\nThis means the kernel debug core needs to provide an optional arch\nspecific call back to allow the initialization functions to run after\nthe kernel has been further initialized.\n\nThe kdb shell already had a similar restriction with an early\ninitialization and late initialization. The kdb_init() was moved into\nthe debug core\u0027s version of the late init which is called\ndbg_late_init();\n\nCC: kgdb-bugreport@lists.sourceforge.net\nSigned-off-by: Jason Wessel \u003cjason.wessel@windriver.com\u003e\n" }, { "commit": "4402c153cb9c549cd21d6007ef0dfac50c8d148d", "tree": "2a2589958e3d5243b265ba2a9fb6f5f2ecb33b57", "parents": [ "5b778dadcde0d93eb20a67bad8105b6ed8d7810f" ], "author": { "name": "Jason Wessel", "email": "jason.wessel@windriver.com", "time": "Thu May 20 21:04:28 2010 -0500" }, "committer": { "name": "Jason Wessel", "email": "jason.wessel@windriver.com", "time": "Thu May 20 21:04:28 2010 -0500" }, "message": "kdb,debug_core: Allow the debug core to receive a panic notification\n\nIt is highly desirable to trap into kdb on panic. The debug core will\nattempt to register as the first in line for the panic notifier.\n\nCC: Ingo Molnar \u003cmingo@elte.hu\u003e\nCC: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCC: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nSigned-off-by: Jason Wessel \u003cjason.wessel@windriver.com\u003e\n" }, { "commit": "6d90634076200af035f1d9dcc8fc11acefd603e9", "tree": "f56c723a28006df0425bf662c15e2a3503b9065a", "parents": [ "d37d39ae3b4a8f9a21114921fb344fe7cadb1abd" ], "author": { "name": "Jason Wessel", "email": "jason.wessel@windriver.com", "time": "Thu May 20 21:04:27 2010 -0500" }, "committer": { "name": "Jason Wessel", "email": "jason.wessel@windriver.com", "time": "Thu May 20 21:04:27 2010 -0500" }, "message": "debug_core,kdb: Allow the debug core to process a recursive debug entry\n\nThis allows kdb to debug a crash with in the kms code with a\nsingle level recursive re-entry.\n\nSigned-off-by: Jason Wessel \u003cjason.wessel@windriver.com\u003e\n" }, { "commit": "d37d39ae3b4a8f9a21114921fb344fe7cadb1abd", "tree": "2c20219725a12c343429758ec378b5c9d08b04bd", "parents": [ "efe2f29e324fd20e0449bcd6dc6dbe4734c2ba94" ], "author": { "name": "Jason Wessel", "email": "jason.wessel@windriver.com", "time": "Thu May 20 21:04:27 2010 -0500" }, "committer": { "name": "Jason Wessel", "email": "jason.wessel@windriver.com", "time": "Thu May 20 21:04:27 2010 -0500" }, "message": "printk,kdb: capture printk() when in kdb shell\n\nCertain calls from the kdb shell will call out to printk(), and any of\nthese calls should get vectored back to the kdb_printf() so that the\nkdb pager and processing can be used, as well as to properly channel\nI/O to the polled I/O devices.\n\nCC: Randy Dunlap \u003crdunlap@xenotime.net\u003e\nSigned-off-by: Jason Wessel \u003cjason.wessel@windriver.com\u003e\nAcked-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\n" }, { "commit": "efe2f29e324fd20e0449bcd6dc6dbe4734c2ba94", "tree": "ff8b2d7eddbfee39aebf7a43c6125202b6bda6d7", "parents": [ "1cee5e35f15d0893be1ba944f1aec8676e43ab76" ], "author": { "name": "Jason Wessel", "email": "jason.wessel@windriver.com", "time": "Thu May 20 21:04:26 2010 -0500" }, "committer": { "name": "Jason Wessel", "email": "jason.wessel@windriver.com", "time": "Thu May 20 21:04:26 2010 -0500" }, "message": "kgdboc,kdb: Allow kdb to work on a non open console port\n\nIf kdb is open on a serial port that is not actually a console make\nsure to call the poll routines to emit and receive characters.\n\nSigned-off-by: Jason Wessel \u003cjason.wessel@windriver.com\u003e\nAcked-by: Martin Hicks \u003cmort@sgi.com\u003e\n" }, { "commit": "1cee5e35f15d0893be1ba944f1aec8676e43ab76", "tree": "634f5365300cfb555c8e894ade79735bb91a690e", "parents": [ "5dd11d5d47d248850c58292513f0e164ba98b01e" ], "author": { "name": "Jason Wessel", "email": "jason.wessel@windriver.com", "time": "Wed Jun 03 14:06:57 2009 -0500" }, "committer": { "name": "Jason Wessel", "email": "jason.wessel@windriver.com", "time": "Thu May 20 21:04:26 2010 -0500" }, "message": "kgdb: Add the ability to schedule a breakpoint via a tasklet\n\nSome kgdb I/O modules require the ability to create a breakpoint\ntasklet, such as kgdboc and external modules such as kgdboe. The\nbreakpoint tasklet is used as an asynchronous entry point into the\ndebugger which will have a different function scope than the current\nexecution path where it might not be safe to have an inline\nbreakpoint. This is true of some of the kgdb I/O drivers which share\ncode with kgdb and rest of the kernel users.\n\nSigned-off-by: Jason Wessel \u003cjason.wessel@windriver.com\u003e\n" } ], "next": "f503b5ae53cb557ac351a668fcac1baab1cef0db" }