)]}' { "log": [ { "commit": "502adf5778f4151dcba3f64dd6ed322151f3712c", "tree": "ad14adb37dedaefabdaf93b08ab9d32bc140ed81", "parents": [ "3b6c5507a69861e80c26f21d04601c674cbeec3d", "c6db67cda735d8ace5f19c3831240e1408679790" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Aug 24 12:21:49 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Aug 24 12:21:49 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 watchdog: Don\u0027t throttle the watchdog\n tracing: Fix timer tracing\n" }, { "commit": "e36c886a0f9d624377977fa6cae309cfd7f362fa", "tree": "f75e7c3e50a48c671ed4dff33103f601a2204af9", "parents": [ "69b26c7ad00fd5b6129400725e2ffb95134a0e1b" ], "author": { "name": "Arjan van de Ven", "email": "arjan@linux.intel.com", "time": "Sat Aug 21 13:07:26 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Aug 21 13:19:37 2010 -0700" }, "message": "workqueue: Add basic tracepoints to track workqueue execution\n\nWith the introduction of the new unified work queue thread pools,\nwe lost one feature: It\u0027s no longer possible to know which worker\nis causing the CPU to wake out of idle. The result is that PowerTOP\nnow reports a lot of \"kworker/a:b\" instead of more readable results.\n\nThis patch adds a pair of tracepoints to the new workqueue code,\nsimilar in style to the timer/hrtimer tracepoints.\n\nWith this pair of tracepoints, the next PowerTOP can correctly\nreport which work item caused the wakeup (and how long it took):\n\nInterrupt (43) i915 time 3.51ms wakeups 141\nWork ieee80211_iface_work time 0.81ms wakeups 29\nWork do_dbs_timer time 0.55ms wakeups 24\nProcess Xorg time 21.36ms wakeups 4\nTimer sched_rt_period_timer time 0.01ms wakeups 1\n\nSigned-off-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "ede1b4290781ae82ccf0f2ecc6dada8d3dd35779", "tree": "8cc85b36b0450f3e1c2d808cb15ecbc7fa931ca3", "parents": [ "737480a0d525dae13306296da08029dff545bc72" ], "author": { "name": "Arjan van de Ven", "email": "arjan@linux.intel.com", "time": "Wed Aug 18 15:33:13 2010 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Aug 19 13:00:41 2010 +0200" }, "message": "tracing: Fix timer tracing\n\nPowerTOP would like to be able to trace timers.\n\nUnfortunately, the current timer tracing is not very useful: the\nactual timer function is not recorded in the trace at the start\nof timer execution.\n\nAlthough this is recorded for timer \"start\" time (when it gets\narmed), this is not useful; most timers get started early, and a\ntracer like PowerTOP will never see this event, but will only\nsee the actual running of the timer.\n\nThis patch just adds the function to the timer tracing; I\u0027ve\nverified with PowerTOP that now it can get useful information\nabout timers.\n\nSigned-off-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nCc: xiaoguangrong@cn.fujitsu.com\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: \u003cstable@kernel.org\u003e # .35.x, .34.x, .33.x\nLKML-Reference: \u003c4C6C5FA9.3000405@linux.intel.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "2f9e825d3e0e2b407ae8f082de5c00afcf7378fb", "tree": "f8b3ee40674ce4acd5508a0a0bf52a30904caf6c", "parents": [ "7ae0dea900b027cd90e8a3e14deca9a19e17638b", "de75d60d5ea235e6e09f4962ab22541ce0fe176a" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Aug 10 15:22:42 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Aug 10 15:22:42 2010 -0700" }, "message": "Merge branch \u0027for-2.6.36\u0027 of git://git.kernel.dk/linux-2.6-block\n\n* \u0027for-2.6.36\u0027 of git://git.kernel.dk/linux-2.6-block: (149 commits)\n block: make sure that REQ_* types are seen even with CONFIG_BLOCK\u003dn\n xen-blkfront: fix missing out label\n blkdev: fix blkdev_issue_zeroout return value\n block: update request stacking methods to support discards\n block: fix missing export of blk_types.h\n writeback: fix bad _bh spinlock nesting\n drbd: revert \"delay probes\", feature is being re-implemented differently\n drbd: Initialize all members of sync_conf to their defaults [Bugz 315]\n drbd: Disable delay probes for the upcomming release\n writeback: cleanup bdi_register\n writeback: add new tracepoints\n writeback: remove unnecessary init_timer call\n writeback: optimize periodic bdi thread wakeups\n writeback: prevent unnecessary bdi threads wakeups\n writeback: move bdi threads exiting logic to the forker thread\n writeback: restructure bdi forker loop a little\n writeback: move last_active to bdi\n writeback: do not remove bdi from bdi_list\n writeback: simplify bdi code a little\n writeback: do not lose wake-ups in bdi threads\n ...\n\nFixed up pretty trivial conflicts in drivers/block/virtio_blk.c and\ndrivers/scsi/scsi_error.c as per Jens.\n" }, { "commit": "cc8e970c3ce4d98afa8eb02dbd2526ce57f7611a", "tree": "621ce988444b6df6eb67058b05ca5ddef23f6103", "parents": [ "e17613c39b8894c164df782d0508c27ca559c24b" ], "author": { "name": "KOSAKI Motohiro", "email": "kosaki.motohiro@jp.fujitsu.com", "time": "Mon Aug 09 17:19:57 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 09 20:45:03 2010 -0700" }, "message": "memcg: add mm_vmscan_memcg_isolate tracepoint\n\nMemcg also need to trace page isolation information as global reclaim.\nThis patch does it.\n\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nReviewed-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nAcked-by: Mel Gorman \u003cmel@csn.ul.ie\u003e\nAcked-by: Balbir Singh \u003cbalbir@linux.vnet.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e17613c39b8894c164df782d0508c27ca559c24b", "tree": "9d256ead495ad9ad1568fdb7763460865a24c7b6", "parents": [ "bdce6d9ebf52c1f6c23163d1a33320ce7c007f73" ], "author": { "name": "KOSAKI Motohiro", "email": "kosaki.motohiro@jp.fujitsu.com", "time": "Mon Aug 09 17:19:57 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 09 20:45:03 2010 -0700" }, "message": "vmscan: convert mm_vmscan_lru_isolate to DEFINE_EVENT\n\nMel Gorman recently added some vmscan tracepoints. Unfortunately they are\ncovered only global reclaim. But we want to trace memcg reclaim too.\n\nThus, this patch convert them to DEFINE_TRACE macro. it help to reuse\ntracepoint definition for other similar usage (i.e. memcg). This patch\nhave no functionally change.\n\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nReviewed-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nAcked-by: Balbir Singh \u003cbalbir@linux.vnet.ibm.com\u003e\nAcked-by: Mel Gorman \u003cmel@csn.ul.ie\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "bdce6d9ebf52c1f6c23163d1a33320ce7c007f73", "tree": "6070de94cdece474e277d8878721421671e212eb", "parents": [ "cf4dcc3e9b374e1b61a7c22faf868707ce78d6a9" ], "author": { "name": "KOSAKI Motohiro", "email": "kosaki.motohiro@jp.fujitsu.com", "time": "Mon Aug 09 17:19:56 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 09 20:45:03 2010 -0700" }, "message": "memcg, vmscan: add memcg reclaim tracepoint\n\nMemcg also need to trace reclaim progress as direct reclaim. This patch\nadd it.\n\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nReviewed-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nAcked-by: Mel Gorman \u003cmel@csn.ul.ie\u003e\nAcked-by: Balbir Singh \u003cbalbir@linux.vnet.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "cf4dcc3e9b374e1b61a7c22faf868707ce78d6a9", "tree": "eb46339e98467b74a089d596b63d79441408caec", "parents": [ "4dc4b3d971b23e12d483ba9f3b93b648c54b298a" ], "author": { "name": "KOSAKI Motohiro", "email": "kosaki.motohiro@jp.fujitsu.com", "time": "Mon Aug 09 17:19:55 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 09 20:45:03 2010 -0700" }, "message": "vmscan: convert direct reclaim tracepoint to DEFINE_TRACE\n\nMel Gorman recently added some vmscan tracepoints. Unfortunately they are\ncovered only global reclaim. But we want to trace memcg reclaim too.\n\nThus, this patch convert them to DEFINE_TRACE macro. it help to reuse\ntracepoint definition for other similar usage (i.e. memcg). This patch\nhave no functionally change.\n\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nReviewed-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nAcked-by: Mel Gorman \u003cmel@csn.ul.ie\u003e\nAcked-by: Balbir Singh \u003cbalbir@linux.vnet.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "755f0225e8347b23a33ee6e3fb14a35310f95766", "tree": "23489e9f52f1435c7b8bc4da8e98d607460e4e23", "parents": [ "a8a94d151521b248727c1f88756174e15260815a" ], "author": { "name": "Mel Gorman", "email": "mel@csn.ul.ie", "time": "Mon Aug 09 17:19:18 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 09 20:45:00 2010 -0700" }, "message": "vmscan: tracing: add trace event when a page is written\n\nAdd a trace event for when page reclaim queues a page for IO and records\nwhether it is synchronous or asynchronous. Excessive synchronous IO for a\nprocess can result in noticeable stalls during direct reclaim. Excessive\nIO from page reclaim may indicate that the system is seriously under\nprovisioned for the amount of dirty pages that exist.\n\nSigned-off-by: Mel Gorman \u003cmel@csn.ul.ie\u003e\nAcked-by: Rik van Riel \u003criel@redhat.com\u003e\nAcked-by: Larry Woodman \u003clwoodman@redhat.com\u003e\nCc: Dave Chinner \u003cdavid@fromorbit.com\u003e\nCc: Chris Mason \u003cchris.mason@oracle.com\u003e\nCc: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nCc: Johannes Weiner \u003channes@cmpxchg.org\u003e\nCc: Christoph Hellwig \u003chch@infradead.org\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Andrea Arcangeli \u003caarcange@redhat.com\u003e\nCc: Michael Rubin \u003cmrubin@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a8a94d151521b248727c1f88756174e15260815a", "tree": "81ea18e9c52f6260f9b52b16e592cc89bfd9d260", "parents": [ "33906bc5c87b50028364405ec425de9638afc719" ], "author": { "name": "Mel Gorman", "email": "mel@csn.ul.ie", "time": "Mon Aug 09 17:19:17 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 09 20:44:59 2010 -0700" }, "message": "vmscan: tracing: add trace events for LRU page isolation\n\nAdd an event for when pages are isolated en-masse from the LRU lists.\nThis event augments the information available on LRU traffic and can be\nused to evaluate lumpy reclaim.\n\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: Mel Gorman \u003cmel@csn.ul.ie\u003e\nAcked-by: Rik van Riel \u003criel@redhat.com\u003e\nAcked-by: Larry Woodman \u003clwoodman@redhat.com\u003e\nCc: Dave Chinner \u003cdavid@fromorbit.com\u003e\nCc: Chris Mason \u003cchris.mason@oracle.com\u003e\nCc: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nCc: Johannes Weiner \u003channes@cmpxchg.org\u003e\nCc: Christoph Hellwig \u003chch@infradead.org\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Andrea Arcangeli \u003caarcange@redhat.com\u003e\nCc: Michael Rubin \u003cmrubin@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "33906bc5c87b50028364405ec425de9638afc719", "tree": "d5d6f431bd517a4a914972f3ce968dc99de73694", "parents": [ "c6a8a8c589b53f90854a07db3b5806ce111e826b" ], "author": { "name": "Mel Gorman", "email": "mel@csn.ul.ie", "time": "Mon Aug 09 17:19:16 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 09 20:44:59 2010 -0700" }, "message": "vmscan: tracing: add trace events for kswapd wakeup, sleeping and direct reclaim\n\nAdd two trace events for kswapd waking up and going asleep for the\npurposes of tracking kswapd activity and two trace events for direct\nreclaim beginning and ending. The information can be used to work out how\nmuch time a process or the system is spending on the reclamation of pages\nand in the case of direct reclaim, how many pages were reclaimed for that\nprocess. High frequency triggering of these events could point to memory\npressure problems.\n\nSigned-off-by: Mel Gorman \u003cmel@csn.ul.ie\u003e\nAcked-by: Rik van Riel \u003criel@redhat.com\u003e\nAcked-by: Larry Woodman \u003clwoodman@redhat.com\u003e\nCc: Dave Chinner \u003cdavid@fromorbit.com\u003e\nCc: Chris Mason \u003cchris.mason@oracle.com\u003e\nCc: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nCc: Johannes Weiner \u003channes@cmpxchg.org\u003e\nCc: Christoph Hellwig \u003chch@infradead.org\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Andrea Arcangeli \u003caarcange@redhat.com\u003e\nCc: Michael Rubin \u003cmrubin@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "09dc942c2a767e2d298f1cc9294bc19c7d7208c5", "tree": "d310c118467c90c264e953bdc320ae08394c662a", "parents": [ "90e0c225968f0878e090c7ff3f88323973476cee", "6c7a120ac6c62316ab1fc78dfc0a7b13f3bfcbff" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Aug 07 13:03:53 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Aug 07 13:03:53 2010 -0700" }, "message": "Merge branch \u0027next\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4\n\n* \u0027next\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (40 commits)\n ext4: Adding error check after calling ext4_mb_regular_allocator()\n ext4: Fix dirtying of journalled buffers in data\u003djournal mode\n ext4: re-inline ext4_rec_len_(to|from)_disk functions\n jbd2: Remove t_handle_lock from start_this_handle()\n jbd2: Change j_state_lock to be a rwlock_t\n jbd2: Use atomic variables to avoid taking t_handle_lock in jbd2_journal_stop\n ext4: Add mount options in superblock\n ext4: force block allocation on quota_off\n ext4: fix freeze deadlock under IO\n ext4: drop inode from orphan list if ext4_delete_inode() fails\n ext4: check to make make sure bd_dev is set before dereferencing it\n jbd2: Make barrier messages less scary\n ext4: don\u0027t print scary messages for allocation failures post-abort\n ext4: fix EFBIG edge case when writing to large non-extent file\n ext4: fix ext4_get_blocks references\n ext4: Always journal quota file modifications\n ext4: Fix potential memory leak in ext4_fill_super\n ext4: Don\u0027t error out the fs if the user tries to make a file too big\n ext4: allocate stripe-multiple IOs on stripe boundaries\n ext4: move aio completion after unwritten extent conversion\n ...\n\nFix up conflicts in fs/ext4/inode.c as per Ted.\n\nFix up xfs conflicts as per earlier xfs merge.\n" }, { "commit": "3b7433b8a8a83c87972065b1852b7dcae691e464", "tree": "93fa2c003f8baef5ab0733b53bac77961ed5240c", "parents": [ "4a386c3e177ca2fbc70c9283d0b46537844763a0", "6ee0578b4daaea01c96b172c6aacca43fd9807a6" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Aug 07 12:42:58 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Aug 07 12:42:58 2010 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: (55 commits)\n workqueue: mark init_workqueues() as early_initcall()\n workqueue: explain for_each_*cwq_cpu() iterators\n fscache: fix build on !CONFIG_SYSCTL\n slow-work: kill it\n gfs2: use workqueue instead of slow-work\n drm: use workqueue instead of slow-work\n cifs: use workqueue instead of slow-work\n fscache: drop references to slow-work\n fscache: convert operation to use workqueue instead of slow-work\n fscache: convert object to use workqueue instead of slow-work\n workqueue: fix how cpu number is stored in work-\u003edata\n workqueue: fix mayday_mask handling on UP\n workqueue: fix build problem on !CONFIG_SMP\n workqueue: fix locking in retry path of maybe_create_worker()\n async: use workqueue for worker pool\n workqueue: remove WQ_SINGLE_CPU and use WQ_UNBOUND instead\n workqueue: implement unbound workqueue\n workqueue: prepare for WQ_UNBOUND implementation\n libata: take advantage of cmwq and remove concurrency limitations\n workqueue: fix worker management invocation without pending works\n ...\n\nFixed up conflicts in fs/cifs/* as per Tejun. Other trivial conflicts in\ninclude/linux/workqueue.h, kernel/trace/Kconfig and kernel/workqueue.c\n" }, { "commit": "603320239fb436f175c8b6bfa43d5023c47a6dc2", "tree": "efe1e78de6c2b8029cdcdcad2e98e3ef6c017900", "parents": [ "b5048a6cb5455a16bdff26a4c5ae9534f070d94c" ], "author": { "name": "Artem Bityutskiy", "email": "Artem.Bityutskiy@nokia.com", "time": "Sun Jul 25 14:29:24 2010 +0300" }, "committer": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Sat Aug 07 18:53:56 2010 +0200" }, "message": "writeback: add new tracepoints\n\nAdd 2 new trace points to the periodic write-back wake up case, just like we do\nin the \u0027bdi_queue_work()\u0027 function. Namely, introduce:\n\n1. trace_writeback_wake_thread(bdi)\n2. trace_writeback_wake_forker_thread(bdi)\n\nThe first event is triggered every time we wake up a bdi thread to start\nperiodic background write-out. The second event is triggered only when the bdi\nthread does not exist and should be created by the forker thread.\n\nThis patch was suggested by Dave Chinner and Christoph Hellwig.\n\nSigned-off-by: Artem Bityutskiy \u003cArtem.Bityutskiy@nokia.com\u003e\nSigned-off-by: Jens Axboe \u003cjaxboe@fusionio.com\u003e\n" }, { "commit": "96dccab1d63cb35d3f5e75d2ef275fdbff4d5f3b", "tree": "d4baab082b2760be1bee774762c595ef389146e9", "parents": [ "10d1f9e2ccfff40665a00ea0e0a0d11e54c9cbb1" ], "author": { "name": "Randy Dunlap", "email": "randy.dunlap@oracle.com", "time": "Mon Jul 19 16:49:17 2010 -0700" }, "committer": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Sat Aug 07 18:26:35 2010 +0200" }, "message": "writeback.h: needs linux/device.h\n\ninclude/trace/events/writeback.h uses dev_name(), so it needs to\ninclude linux/device.h.\n\ninclude/trace/events/writeback.h:12: error: implicit declaration of function \u0027dev_name\u0027\n\nSigned-off-by: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nSigned-off-by: Jens Axboe \u003cjaxboe@fusionio.com\u003e\n" }, { "commit": "9e094383b60066996fbc3b53891324e5d2ec858d", "tree": "a3f4af7e60781f62b52dcfddd2032c3bbf933644", "parents": [ "028c2dd184c097809986684f2f0627eea5529fea" ], "author": { "name": "Dave Chinner", "email": "dchinner@redhat.com", "time": "Wed Jul 07 13:24:08 2010 +1000" }, "committer": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Sat Aug 07 18:24:26 2010 +0200" }, "message": "writeback: Add tracing to write_cache_pages\n\nAdd a trace event to the -\u003ewritepage loop in write_cache_pages to give\nvisibility into how the -\u003ewritepage call is changing variables within the\nwriteback control structure. Of most interest is how wbc-\u003enr_to_write changes\nfrom call to call, especially with filesystems that write multiple pages\nin -\u003ewritepage.\n\nSigned-off-by: Dave Chinner \u003cdchinner@redhat.com\u003e\nReviewed-by: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Jens Axboe \u003cjaxboe@fusionio.com\u003e\n" }, { "commit": "028c2dd184c097809986684f2f0627eea5529fea", "tree": "f6eb9e30a24d73597e5ce2a65b4638e9d1947504", "parents": [ "455b2864686d3591b3b2f39eb46290c95f76471f" ], "author": { "name": "Dave Chinner", "email": "dchinner@redhat.com", "time": "Wed Jul 07 13:24:07 2010 +1000" }, "committer": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Sat Aug 07 18:24:25 2010 +0200" }, "message": "writeback: Add tracing to balance_dirty_pages\n\nTracing high level background writeback events is good, but it doesn\u0027t\ngive the entire picture. Add visibility into write throttling to catch IO\ndispatched by foreground throttling of processing dirtying lots of pages.\n\nSigned-off-by: Dave Chinner \u003cdchinner@redhat.com\u003e\nSigned-off-by: Jens Axboe \u003cjaxboe@fusionio.com\u003e\n" }, { "commit": "455b2864686d3591b3b2f39eb46290c95f76471f", "tree": "b88059e3691fc5ad4491518e9eb1f1f2ba21711a", "parents": [ "a89f5c899db3c6be4bb426e4efb72ecee29a93b5" ], "author": { "name": "Dave Chinner", "email": "david@fromorbit.com", "time": "Wed Jul 07 13:24:06 2010 +1000" }, "committer": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Sat Aug 07 18:24:23 2010 +0200" }, "message": "writeback: Initial tracing support\n\nTrace queue/sched/exec parts of the writeback loop. This provides\ninsight into when and why flusher threads are scheduled to run. e.g\na sync invocation leaves traces like:\n\n sync-[...]: writeback_queue: bdi 8:0: sb_dev 8:1 nr_pages\u003d7712 sync_mode\u003d0 kupdate\u003d0 range_cyclic\u003d0 background\u003d0\nflush-8:0-[...]: writeback_exec: bdi 8:0: sb_dev 8:1 nr_pages\u003d7712 sync_mode\u003d0 kupdate\u003d0 range_cyclic\u003d0 background\u003d0\n\nThis also lays the foundation for adding more writeback tracing to\nprovide deeper insight into the whole writeback path.\n\nThe original tracing code is from Jens Axboe, though this version is\na rewrite as a result of the code being traced changing\nsignificantly.\n\nSigned-off-by: Dave Chinner \u003cdchinner@redhat.com\u003e\nSigned-off-by: Jens Axboe \u003cjaxboe@fusionio.com\u003e\n" }, { "commit": "33659ebbae262228eef4e0fe990f393d1f0ed941", "tree": "fcb537f09359c8dad3a6f6e16dc4319562dc42cc", "parents": [ "7e005f79791dcd58436c88ded4a7f5aed1b82147" ], "author": { "name": "Christoph Hellwig", "email": "hch@lst.de", "time": "Sat Aug 07 18:17:56 2010 +0200" }, "committer": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Sat Aug 07 18:17:56 2010 +0200" }, "message": "block: remove wrappers for request type/flags\n\nRemove all the trivial wrappers for the cmd_type and cmd_flags fields in\nstruct requests. This allows much easier grepping for different request\ntypes instead of unwinding through macros.\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Jens Axboe \u003cjaxboe@fusionio.com\u003e\n" }, { "commit": "819ce45afebd77a9de736fa5304ba8352d11dff9", "tree": "6e63ac0ac561c85f241efe0656995464fc012a8e", "parents": [ "669336e4cf3e1cb95800f3f5924558a76d723c21" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Jul 20 18:41:24 2010 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Mon Aug 02 01:31:28 2010 +0200" }, "message": "tracing: Drop cpparg() macro\n\nDrop the cpparg() macro that wraps CPP parameters. We already have\nthe PARAM() macro for that, no need to have several versions.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\n" }, { "commit": "e5880d76aea443b04e07da19830da0f6f7494eef", "tree": "24ad55c300a63170ffcf5a777dc737c67d80e00c", "parents": [ "89eeddf03327e19cfcbb18efa98e5470e2f5c563" ], "author": { "name": "Theodore Ts\u0027o", "email": "tytso@mit.edu", "time": "Tue Jul 27 11:56:04 2010 -0400" }, "committer": { "name": "Theodore Ts\u0027o", "email": "tytso@mit.edu", "time": "Tue Jul 27 11:56:04 2010 -0400" }, "message": "ext4: fix potential NULL dereference while tracing\n\nThe allocation_context pointer can be NULL.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n" }, { "commit": "3a01736e70a7d629140695ba46a901266b4460cc", "tree": "49ff8ce1e7c6a267f0ce84b5daddbe6666bc4253", "parents": [ "4c21adf26f8fcf86a755b9b9f55c2e9fd241e1fb", "24a461d537f49f9da6533d83100999ea08c6c755" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jul 23 09:10:29 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jul 23 09:10:29 2010 +0200" }, "message": "Merge branch \u0027tip/perf/core\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into perf/core\n" }, { "commit": "4c21adf26f8fcf86a755b9b9f55c2e9fd241e1fb", "tree": "f01c367d4cca879d39fe42704c6a9f047518dfdf", "parents": [ "23c2875725ebb03e58e598754309e198648f608a" ], "author": { "name": "Thomas Renninger", "email": "trenn@suse.de", "time": "Tue Jul 20 16:59:34 2010 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Jul 22 12:08:27 2010 +0200" }, "message": "x86 cpufreq, perf: Make trace_power_frequency cpufreq driver independent\n\nand fix the broken case if a core\u0027s frequency depends on others.\n\ntrace_power_frequency was only implemented in a rather ungeneric\nway in acpi-cpufreq driver\u0027s target() function only.\n\n-\u003e Move the call to trace_power_frequency to\n cpufreq.c:cpufreq_notify_transition() where CPUFREQ_POSTCHANGE\n notifier is triggered.\n This will support power frequency tracing by all cpufreq\n drivers.\n\ntrace_power_frequency did not trace frequency changes correctly\nwhen the userspace governor was used or when CPU cores\u0027\nfrequency depend on each other.\n\n-\u003e Moving this into the CPUFREQ_POSTCHANGE notifier and pass the cpu\n which gets switched automatically fixes this.\n\nRobert Schoene provided some important fixes on top of my\ninitial quick shot version which are integrated in this patch:\n- Forgot some changes in power_end trace (TP_printk/variable names)\n- Variable dummy in power_end must now be cpu_id\n- Use static 64 bit variable instead of unsigned int for cpu_id\n\n[akpm@linux-foundation.org: build fix]\nSigned-off-by: Thomas Renninger \u003ctrenn@suse.de\u003e\nCc: davej@codemonkey.org.uk\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Dave Jones \u003cdavej@codemonkey.org.uk\u003e\nAcked-by: Arjan van de Ven \u003carjan@infradead.org\u003e\nCc: Robert Schoene \u003crobert.schoene@tu-dresden.de\u003e\nTested-by: Robert Schoene \u003crobert.schoene@tu-dresden.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\n" }, { "commit": "bc289ae98b75d93228d24f521ef02a076e506e94", "tree": "50d151d0fbde1b106932c0f80a2639839d261ca3", "parents": [ "985023dee6e212493831431ba2e3ce8918f001b2" ], "author": { "name": "Lai Jiangshan", "email": "laijs@cn.fujitsu.com", "time": "Thu Jun 03 18:26:24 2010 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Tue Jul 20 22:05:34 2010 -0400" }, "message": "tracing: Reduce latency and remove percpu trace_seq\n\n__print_flags() and __print_symbolic() use percpu trace_seq:\n\n1) Its memory is allocated at compile time, it wastes memory if we don\u0027t use tracing.\n2) It is percpu data and it wastes more memory for multi-cpus system.\n3) It disables preemption when it executes its core routine\n \"trace_seq_printf(s, \"%s: \", #call);\" and introduces latency.\n\nSo we move this trace_seq to struct trace_iterator.\n\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4C078350.7090106@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "64166699752006f1a23a9cf7c96ae36654ccfc2c", "tree": "ef4d825be9526409102bff79ca8bb1dd60aa2443", "parents": [ "a62428c0ae54a39e411251e836c3fe3dc11a5f5f" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Tue Jun 29 10:07:11 2010 +0200" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Tue Jun 29 10:07:11 2010 +0200" }, "message": "workqueue: temporarily remove workqueue tracing\n\nStrip tracing code from workqueue and remove workqueue tracing. This\nis temporary measure till concurrency managed workqueue is complete.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "a1d0ce8213e9ddf4046ef5ba95c55762d075f541", "tree": "c72fb18588de555c8fa0c61452ae14ffe37dbf8a", "parents": [ "d62f85d1e22e537192ce494c89540e1ac0d8bfc7" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue Jun 08 11:22:06 2010 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Mon Jun 28 21:13:14 2010 -0400" }, "message": "tracing: Use class-\u003ereg() for all registering of events\n\nBecause kprobes and syscalls need special processing to register\nevents, the class-\u003ereg() method was created to handle the differences.\n\nBut instead of creating a default -\u003ereg for perf and ftrace events,\nthe code was scattered with:\n\n\tif (class-\u003ereg)\n\t\tclass-\u003ereg();\n\telse\n\t\tdefault_reg();\n\nThis is messy and can also lead to bugs.\n\nThis patch cleans up this code and creates a default reg() entry for\nthe events allowing for the code to directly call the class-\u003ereg()\nwithout the condition.\n\nReported-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nAcked-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "210f766915207636acccba7bec42248bfe882998", "tree": "bac8057eabc86111242c4725b485b84825429343", "parents": [ "363d0f6490f319d0dd69b7ec7503c5f6cbab36d9" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Mon May 24 16:23:35 2010 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Mon Jun 28 17:12:50 2010 -0400" }, "message": "tracing: Convert more sched events to DEFINE_EVENT\n\nConvert sched_wait_task to DEFINE_EVENT, and save ~1K:\n\n text data bss dec hex filename\n 104595 9424 4992 119011 1d0e3 kernel/sched.o.orig\n 103619 9344 4992 117955 1ccc3 kernel/sched.o\n\nNo change in functionality.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4BFA3787.2040800@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "363d0f6490f319d0dd69b7ec7503c5f6cbab36d9", "tree": "296c3759da30cedc9d05ef129dfa6c21538ed36b", "parents": [ "8728fe501ed562c1b46dde3c195eadec77bca033" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Mon May 24 16:23:15 2010 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Mon Jun 28 17:12:48 2010 -0400" }, "message": "tracing: Convert some timer events to DEFINE_EVENT\n\nUse DECLARE_EVENT_CLASS, and save ~2.3K:\n\n text data bss dec hex filename\n7018823 2031888 7251132 16301843 f8bf13 vmlinux.o.orig\n7016727 2031696 7251132 16299555 f8b623 vmlinux.o\n\n5 events are converted:\n\n timer_class: timer_init, timer_expire_exit, timer_cancel\n hrtimer_class: hrtimer_init, hrtimer_cancel\n\nNo change in functionality.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4BFA3773.3060200@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "c9642c49aae1272d7c24008a40ae614470b957a6", "tree": "dd42bf76ad9652bc952c0332b14e0b3b7ea38d3c", "parents": [ "f384c954c9fe3d3c6fce5ae66b67f2ddd947d098" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Mon May 24 16:22:30 2010 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Mon Jun 28 17:12:44 2010 -0400" }, "message": "tracing: Use a global field list for all syscall exit events\n\nAll syscall exit events have the same fields.\n\nThe kernel size drops 2.5K:\n\n text data bss dec hex filename\n7018612 2034376 7251132 16304120 f8c7f8 vmlinux.o.orig\n7018612 2031888 7251132 16301632 f8be40 vmlinux.o\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4BFA3746.8070100@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "646b1db4956ba8bf748b835b5eba211133d91c2e", "tree": "061166d873d9da9cf83044a7593ad111787076c5", "parents": [ "0f2c3de2ba110626515234d5d584fb1b0c0749a2", "7e27d6e778cd87b6f2415515d7127eba53fe5d02" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jun 18 10:53:12 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jun 18 10:53:19 2010 +0200" }, "message": "Merge commit \u0027v2.6.35-rc3\u0027 into perf/core\n\nMerge reason: Go from -rc1 base to -rc3 base, merge in fixes.\n" }, { "commit": "85ca7886f566ae387a57a37bc0ffab25e3e117b5", "tree": "d170966b3352b3463669492648861795aad0fb92", "parents": [ "7c8d20d40f29e7c08332d406d7a65678dece4627", "16106822b67e0a5eb228aebf47e33d6cad1e91b6" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 10 09:30:09 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 10 09:30:09 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 tracing: Fix null pointer deref with SEND_SIG_FORCED\n perf: Fix signed comparison in perf_adjust_period()\n powerpc/oprofile: fix potential buffer overrun in op_model_cell.c\n perf symbols: Set the DSO long name when using symbol_conf.vmlinux_name\n" }, { "commit": "c726b61c6a5acc54c55ed7a0e7638cc4c5a100a8", "tree": "3f44aa013d31d34951e9610e79ff14c1148ad6ac", "parents": [ "7be7923633a142402266d642ccebf74f556a649b", "018378c55b03f88ff513aba4e0e93b8d4a9cf241" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jun 09 18:55:20 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jun 09 18:55:57 2010 +0200" }, "message": "Merge branch \u0027perf/core\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing into perf/core\n" }, { "commit": "0b5649278e39a068aaf91399941bab1b4a4a3cc2", "tree": "3fd2c782385137f5b135c07149de772e207fdaf8", "parents": [ "8d7458daea2a6809d32418bf489b949d23de99ea" ], "author": { "name": "Dave Chinner", "email": "dchinner@redhat.com", "time": "Wed Jun 09 10:37:18 2010 +1000" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Jun 08 18:12:44 2010 -0700" }, "message": "writeback: pay attention to wbc-\u003enr_to_write in write_cache_pages\n\nIf a filesystem writes more than one page in -\u003ewritepage, write_cache_pages\nfails to notice this and continues to attempt writeback when wbc-\u003enr_to_write\nhas gone negative - this trace was captured from XFS:\n\n wbc_writeback_start: towrt\u003d1024\n wbc_writepage: towrt\u003d1024\n wbc_writepage: towrt\u003d0\n wbc_writepage: towrt\u003d-1\n wbc_writepage: towrt\u003d-5\n wbc_writepage: towrt\u003d-21\n wbc_writepage: towrt\u003d-85\n\nThis has adverse effects on filesystem writeback behaviour. write_cache_pages()\nneeds to terminate after a certain number of pages are written, not after a\ncertain number of calls to -\u003ewritepage are made. This is a regression\nintroduced by 17bc6c30cf6bfffd816bdc53682dd46fc34a2cf4 (\"vfs: Add\nno_nrwrite_index_update writeback control flag\"), but cannot be reverted\ndirectly due to subsequent bug fixes that have gone in on top of it.\n\nSigned-off-by: Dave Chinner \u003cdchinner@redhat.com\u003e\nReviewed-by: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b9b76dfaac6fa2c289ee8a005be637afd2da7e2f", "tree": "f6577a50c16238b480f4e3a4820ed25f8eb73e85", "parents": [ "58cc1a9e3b11a84e66c4d3a4cc9073f2cb0ecabb" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Thu Jun 03 23:34:09 2010 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Jun 08 23:51:32 2010 +0200" }, "message": "tracing: Fix null pointer deref with SEND_SIG_FORCED\n\nBUG: unable to handle kernel NULL pointer dereference at\n\t0000000000000006\nIP: [\u003cffffffff8107bd37\u003e] ftrace_raw_event_signal_generate+0x87/0x140\n\nTP_STORE_SIGINFO() forgets about SEND_SIG_FORCED, fix.\n\nWe should probably export is_si_special() and change TP_STORE_SIGINFO()\nto use it in the longer term.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nCc: 2.6.33.x-2.6.34.x \u003cstable@kernel.org\u003e\nLKML-Reference: \u003c20100603213409.GA8307@redhat.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "30dbb20e68e6f7df974b77d2350ebad5eb6f6c9e", "tree": "b28f8232756e0de57ded858d6584724317b405ef", "parents": [ "b0f82b81fe6bbcf78d478071f33e44554726bc81" ], "author": { "name": "Américo Wang", "email": "xiyou.wangcong@gmail.com", "time": "Wed May 26 18:57:53 2010 +0800" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Jun 08 23:31:28 2010 +0200" }, "message": "tracing: Remove boot tracer\n\nThe boot tracer is useless. It simply logs the initcalls\nbut in fact these initcalls are also logged through printk\nwhile using the initcall_debug kernel parameter.\n\nNobody seem to be using it so far. Then just remove it.\n\nSigned-off-by: WANG Cong \u003cxiyou.wangcong@gmail.com\u003e\nCc: Chase Douglas \u003cchase.douglas@canonical.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c20100526105753.GA5677@cr0.nay.redhat.com\u003e\n[ remove the hooks in main.c, and the headers ]\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "b0f82b81fe6bbcf78d478071f33e44554726bc81", "tree": "6305c095b927f956a791b9dce687cb94a21718e6", "parents": [ "c9cf4dbb4d9ca715d8fedf13301a53296429abc6" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Thu May 20 07:47:21 2010 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Jun 08 23:31:27 2010 +0200" }, "message": "perf: Drop the skip argument from perf_arch_fetch_regs_caller\n\nDrop this argument now that we always want to rewind only to the\nstate of the first caller.\nIt means frame pointers are not necessary anymore to reliably get\nthe source of an event. But this also means we need this helper\nto be a macro now, as an inline function is not an option since\nwe need to know when to provide a default implentation.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: David Miller \u003cdavem@davemloft.net\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "39d112100e561686ab1e2b19c57984163ad6c1fa", "tree": "19b3cd50345306de6f95b58b4a35e8f725786b9b", "parents": [ "167b7129042a4b4c09bb4ede5482ff79340a3999", "02f726949f2be0967aa4871dd4e47d3967779b26" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 03 15:47:51 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 03 15:47:51 2010 -0700" }, "message": "Merge branch \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n sched, trace: Fix sched_switch() prev_state argument\n sched: Fix wake_affine() vs RT tasks\n sched: Make sure timers have migrated before killing the migration_thread\n" }, { "commit": "02f726949f2be0967aa4871dd4e47d3967779b26", "tree": "cca72d10f5db4d5d2b37c0d3fb9c424fbef051ca", "parents": [ "e51fd5e22e12b39f49b1bb60b37b300b17378a43" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon May 31 18:13:25 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Jun 01 09:27:17 2010 +0200" }, "message": "sched, trace: Fix sched_switch() prev_state argument\n\nFor CONFIG_PREEMPT\u003dy kernels the sched_switch(.prev_state) argument isn\u0027t\nuseful because we can get preempted with current-\u003estate !\u003d TASK_RUNNING\nwithout actually getting removed from the runqueue.\n\nCure this by treating all preempted tasks as runnable from the tracer\u0027s\npoint of view.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCautiously-acked-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c1275322715.27810.23323.camel@twins\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "3771f0771154675d4a0ca780be2411f3cc357208", "tree": "106512f307e2aa0a89f92c01598d5fa75903af47", "parents": [ "8a49542c0554af7d0073aac0ee73ee65b807ef34" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri May 21 12:31:09 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon May 31 08:46:09 2010 +0200" }, "message": "perf_events, trace: Fix probe unregister race\n\ntracepoint_probe_unregister() does not synchronize against the probe\ncallbacks, so do that explicitly. This properly serializes the callbacks\nand the free of the data used therein.\n\nAlso, use this_cpu_ptr() where possible.\n\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1274438476.1674.1702.camel@laptop\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "7ea8085910ef3dd4f3cad6845aaa2b580d39b115", "tree": "d9c1edb5906f943f7d70bfb4b65106e29772d379", "parents": [ "cc967be54710d97c05229b2e5ba2d00df84ddd64" ], "author": { "name": "Christoph Hellwig", "email": "hch@lst.de", "time": "Wed May 26 17:53:25 2010 +0200" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Thu May 27 22:05:02 2010 -0400" }, "message": "drop unused dentry argument to -\u003efsync\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\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": "e4ce30f3779c2ddaa7dfaa4042209e5dbacbada5", "tree": "cc64c1dcd16b5dbf71ebc8338b339e6fb04abaee", "parents": [ "b899ebeb05da4287ce845976727e3e83dadd25d5", "14ece1028b3ed53ffec1b1213ffc6acaf79ad77c" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 10:26:37 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 10:26:37 2010 -0700" }, "message": "Merge branch \u0027for_linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4\n\n* \u0027for_linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (40 commits)\n ext4: Make fsync sync new parent directories in no-journal mode\n ext4: Drop whitespace at end of lines\n ext4: Fix compat EXT4_IOC_ADD_GROUP\n ext4: Conditionally define compat ioctl numbers\n tracing: Convert more ext4 events to DEFINE_EVENT\n ext4: Add new tracepoints to track mballoc\u0027s buddy bitmap loads\n ext4: Add a missing trace hook\n ext4: restart ext4_ext_remove_space() after transaction restart\n ext4: Clear the EXT4_EOFBLOCKS_FL flag only when warranted\n ext4: Avoid crashing on NULL ptr dereference on a filesystem error\n ext4: Use bitops to read/modify i_flags in struct ext4_inode_info\n ext4: Convert calls of ext4_error() to EXT4_ERROR_INODE()\n ext4: Convert callers of ext4_get_blocks() to use ext4_map_blocks()\n ext4: Add new abstraction ext4_map_blocks() underneath ext4_get_blocks()\n ext4: Use our own write_cache_pages()\n ext4: Show journal_checksum option\n ext4: Fix for ext4_mb_collect_stats()\n ext4: check for a good block group before loading buddy pages\n ext4: Prevent creation of files larger than RLIMIT_FSIZE using fallocate\n ext4: Remove extraneous newlines in ext4_msg() calls\n ...\n\nFixed up trivial conflict in fs/ext4/fsync.c\n" }, { "commit": "49c177461bfbedeccbab22bf3905db2f9da7f1c3", "tree": "e58f08de9c82eab2589bfc22ece178af44c3b495", "parents": [ "87f44bbc246c5244c76a701f8eefba7788bce64a" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue May 25 06:19:35 2010 -0700" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Tue May 25 06:19:35 2010 -0700" }, "message": "tracing: Add __used annotation to event variable\n\nThe TRACE_EVENT() macros automate creation of trace events. To automate\ninitialization, the set up variables are loaded in a special section\nthat is read on boot up. GCC is not aware that these static variables\nare used and will complain about them if we do not inform GCC that\nthey are indeed used.\n\nOne of the declarations of the event element was missing a __used\nannotation. This patch adds it.\n\nReported-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "98edb6ca4174f17a64890a02f44c211c8b44fb3c", "tree": "033bc5f7da410046d28dd1cefcd2d63cda33d25b", "parents": [ "a8251096b427283c47e7d8f9568be6b388dd68ec", "8fbf065d625617bbbf6b72d5f78f84ad13c8b547" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri May 21 17:16:21 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri May 21 17:16:21 2010 -0700" }, "message": "Merge branch \u0027kvm-updates/2.6.35\u0027 of git://git.kernel.org/pub/scm/virt/kvm/kvm\n\n* \u0027kvm-updates/2.6.35\u0027 of git://git.kernel.org/pub/scm/virt/kvm/kvm: (269 commits)\n KVM: x86: Add missing locking to arch specific vcpu ioctls\n KVM: PPC: Add missing vcpu_load()/vcpu_put() in vcpu ioctls\n KVM: MMU: Segregate shadow pages with different cr0.wp\n KVM: x86: Check LMA bit before set_efer\n KVM: Don\u0027t allow lmsw to clear cr0.pe\n KVM: Add cpuid.txt file\n KVM: x86: Tell the guest we\u0027ll warn it about tsc stability\n x86, paravirt: don\u0027t compute pvclock adjustments if we trust the tsc\n x86: KVM guest: Try using new kvm clock msrs\n KVM: x86: export paravirtual cpuid flags in KVM_GET_SUPPORTED_CPUID\n KVM: x86: add new KVMCLOCK cpuid feature\n KVM: x86: change msr numbers for kvmclock\n x86, paravirt: Add a global synchronization point for pvclock\n x86, paravirt: Enable pvclock flags in vcpu_time_info structure\n KVM: x86: Inject #GP with the right rip on efer writes\n KVM: SVM: Don\u0027t allow nested guest to VMMCALL into host\n KVM: x86: Fix exception reinjection forced to true\n KVM: Fix wallclock version writing race\n KVM: MMU: Don\u0027t read pdptrs with mmu spinlock held in mmu_alloc_roots\n KVM: VMX: enable VMXON check with SMX enabled (Intel TXT)\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": "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": "dfacc4d6c98b89609250269f518c1f54c30454ef", "tree": "e7effbee7bdc85d18f7b26ab9cb5c9f700d1481a", "parents": [ "f869097e884d8cb65b2bb7831ca57b7dffb66fdd", "85cb68b27c428d477169f3aa46c72dba103a17bd" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu May 20 14:38:55 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu May 20 14:38:55 2010 +0200" }, "message": "Merge branch \u0027perf/urgent\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing into perf/core\n" }, { "commit": "4f41c013f553957765902fb01475972f0af3e8e7", "tree": "ddaa54947cc990094a4b270f2f8b3d6da195044f", "parents": [ "ef4f30f54e265c2f6f9ac9eda4db158a4e16050b" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue May 18 18:08:32 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue May 18 18:35:46 2010 +0200" }, "message": "perf/ftrace: Optimize perf/tracepoint interaction for single events\n\nWhen we\u0027ve got but a single event per tracepoint\nthere is no reason to try and multiplex it so don\u0027t.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nTested-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "752f114fb83c5839de37a250b4f8257ed5438341", "tree": "c565c3b6670d21ad7f5cd6cdda5864a76d3f2e0c", "parents": [ "b8ae30ee26d379db436b0b8c8c3ff1b52f69e5d1", "ad56b0797e67df5e04b2f1a1e02900145c5c16f2" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 18 08:35:04 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 18 08:35:04 2010 -0700" }, "message": "Merge branch \u0027tracing-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027tracing-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n tracing: Fix \"integer as NULL pointer\" warning.\n tracing: Fix tracepoint.h DECLARE_TRACE() to allow more than one header\n tracing: Make the documentation clear on trace_event boot option\n ring-buffer: Wrap open-coded WARN_ONCE\n tracing: Convert nop macros to static inlines\n tracing: Fix sleep time function profiling\n tracing: Show sample std dev in function profiling\n tracing: Add documentation for trace commands mod, traceon/traceoff\n ring-buffer: Make benchmark handle missed events\n ring-buffer: Make non-consuming read less expensive with lots of cpus.\n tracing: Add graph output support for irqsoff tracer\n tracing: Have graph flags passed in to ouput functions\n tracing: Add ftrace events for graph tracer\n tracing: Dump either the oops\u0027s cpu source or all cpus buffers\n tracing: Fix uninitialized variable of tracing/trace output\n" }, { "commit": "b8ae30ee26d379db436b0b8c8c3ff1b52f69e5d1", "tree": "506aa0b4bdbf90f61e7e9261c7db90aa1452dcce", "parents": [ "4d7b4ac22fbec1a03206c6cde353f2fd6942f828", "9c6f7e43b4e02c161b53e97ba913855246876c61" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 18 08:27:54 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 18 08:27:54 2010 -0700" }, "message": "Merge branch \u0027sched-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027sched-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (49 commits)\n stop_machine: Move local variable closer to the usage site in cpu_stop_cpu_callback()\n sched, wait: Use wrapper functions\n sched: Remove a stale comment\n ondemand: Make the iowait-is-busy time a sysfs tunable\n ondemand: Solve a big performance issue by counting IOWAIT time as busy\n sched: Intoduce get_cpu_iowait_time_us()\n sched: Eliminate the ts-\u003eidle_lastupdate field\n sched: Fold updating of the last_update_time_info into update_ts_time_stats()\n sched: Update the idle statistics in get_cpu_idle_time_us()\n sched: Introduce a function to update the idle statistics\n sched: Add a comment to get_cpu_idle_time_us()\n cpu_stop: add dummy implementation for UP\n sched: Remove rq argument to the tracepoints\n rcu: need barrier() in UP synchronize_sched_expedited()\n sched: correctly place paranioa memory barriers in synchronize_sched_expedited()\n sched: kill paranoia check in synchronize_sched_expedited()\n sched: replace migration_thread with cpu_stop\n stop_machine: reimplement using cpu_stop\n cpu_stop: implement stop_cpu[s]()\n sched: Fix select_idle_sibling() logic in select_task_rq_fair()\n ...\n" }, { "commit": "4d7b4ac22fbec1a03206c6cde353f2fd6942f828", "tree": "2d96a9e9c28cf6fa628a278decc00ad55a8b043b", "parents": [ "3aaf51ace5975050ab43c7d4d7e439e0ae7d13d7", "94f3ca95787ada3d64339a4ecb2754236ab563f6" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 18 08:19:03 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 18 08:19:03 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: (311 commits)\n perf tools: Add mode to build without newt support\n perf symbols: symbol inconsistency message should be done only at verbose\u003d1\n perf tui: Add explicit -lslang option\n perf options: Type check all the remaining OPT_ variants\n perf options: Type check OPT_BOOLEAN and fix the offenders\n perf options: Check v type in OPT_U?INTEGER\n perf options: Introduce OPT_UINTEGER\n perf tui: Add workaround for slang \u003c 2.1.4\n perf record: Fix bug mismatch with -c option definition\n perf options: Introduce OPT_U64\n perf tui: Add help window to show key associations\n perf tui: Make \u003c- exit menus too\n perf newt: Add single key shortcuts for zoom into DSO and threads\n perf newt: Exit browser unconditionally when CTRL+C, q or Q is pressed\n perf newt: Fix the \u0027A\u0027/\u0027a\u0027 shortcut for annotate\n perf newt: Make \u003c- exit the ui_browser\n x86, perf: P4 PMU - fix counters management logic\n perf newt: Make \u003c- zoom out filters\n perf report: Report number of events, not samples\n perf hist: Clarify events_stats fields usage\n ...\n\nFix up trivial conflicts in kernel/fork.c and tools/perf/builtin-record.c\n" }, { "commit": "95bb335c0ebe96afe926387a1ef3a096bd884a82", "tree": "56115332b4f2f7ef300c36248a6a7d20db2e639d", "parents": [ "1b4d0d8ea7b3cbd107f345ab766416f9b38ce66a", "9cccde93fed1ca988eb2fb17ab9194bf7b5ed1b0" ], "author": { "name": "James Bottomley", "email": "James.Bottomley@suse.de", "time": "Tue May 18 10:33:43 2010 -0400" }, "committer": { "name": "James Bottomley", "email": "James.Bottomley@suse.de", "time": "Tue May 18 10:37:41 2010 -0400" }, "message": "[SCSI] Merge scsi-misc-2.6 into scsi-rc-fixes-2.6\n\nSigned-off-by: James Bottomley \u003cJames.Bottomley@suse.de\u003e\n" }, { "commit": "f0218b3e9974f06014b61be8987159f4a20e011e", "tree": "29a593c4d71ab18cb0c450a34e79bf6bea66877e", "parents": [ "1eaa4787a774c4896518c81f24e8bccaa2244924", "9d192e118a094087494997ea1c8a2faf39af38c5" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Mon May 17 22:26:53 2010 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Tue May 18 00:35:23 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-6\n\nConflicts:\n\tinclude/trace/ftrace.h\n\tkernel/trace/trace_kprobe.c\n\nAcked-by: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "9beeaa2d689842f7760aa16c512e6bb8182d38b6", "tree": "62cea0772127c4b1c0b476e46dec6830d36809c1", "parents": [ "3246af0ece6c61689847417977733f0b12dc4b6f", "a1645ce12adb6c9cc9e19d7695466204e3f017fe" ], "author": { "name": "Avi Kivity", "email": "avi@redhat.com", "time": "Mon Apr 19 12:52:53 2010 +0300" }, "committer": { "name": "Avi Kivity", "email": "avi@redhat.com", "time": "Mon May 17 12:17:58 2010 +0300" }, "message": "Merge branch \u0027perf\u0027\n\nSigned-off-by: Avi Kivity \u003cavi@redhat.com\u003e\n" }, { "commit": "2ed152afc7ed61830b848b32936e1541a1a57799", "tree": "e68c626fa21cd0ee63371d42700050ad39daecbb", "parents": [ "06056bfb944a0302a8f22eb45f09123de7fb417b" ], "author": { "name": "Xiao Guangrong", "email": "xiaoguangrong@cn.fujitsu.com", "time": "Wed Mar 10 19:00:43 2010 +0800" }, "committer": { "name": "Avi Kivity", "email": "avi@redhat.com", "time": "Mon May 17 12:15:22 2010 +0300" }, "message": "KVM: cleanup kvm trace\n\nThis patch does:\n\n - no need call tracepoint_synchronize_unregister() when kvm module\n is unloaded since ftrace can handle it\n\n - cleanup ftrace\u0027s macro\n\nSigned-off-by: Xiao Guangrong \u003cxiaoguangrong@cn.fujitsu.com\u003e\nSigned-off-by: Avi Kivity \u003cavi@redhat.com\u003e\n" }, { "commit": "f084db932e6fe877bf8362bc256fc850de196deb", "tree": "b09c667b5ba96751c1d7638f633cdd5e292221a7", "parents": [ "f307333e14f6b18045eb4198fe646d9b6028f3ed" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Mon May 17 04:00:00 2010 -0400" }, "committer": { "name": "Theodore Ts\u0027o", "email": "tytso@mit.edu", "time": "Mon May 17 04:00:00 2010 -0400" }, "message": "tracing: Convert more ext4 events to DEFINE_EVENT\n\nUse DECLARE_EVENT_CLASS, and save ~2.7K:\n\n text data bss dec hex filename\n 274441 7200 260 281901 44d2d fs/ext4/ext4.o.orig\n 271881 7040 256 279177 44289 fs/ext4/ext4.o\n\n4 events are converted:\n\n ext4__mb_new_pa: ext4_mb_new_inode_pa, ext4_mb_new_group_pa\n ext4__mballoc: ext4_mballoc_discard, ext4_mballoc_free\n\nNo change in functionality.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n" }, { "commit": "f307333e14f6b18045eb4198fe646d9b6028f3ed", "tree": "71611b08a95f4f07de9b4c19100474188027e62e", "parents": [ "5a58ec8766e0ce98fd585eb404b3e56935afafe6" ], "author": { "name": "Theodore Ts\u0027o", "email": "tytso@mit.edu", "time": "Mon May 17 03:00:00 2010 -0400" }, "committer": { "name": "Theodore Ts\u0027o", "email": "tytso@mit.edu", "time": "Mon May 17 03:00:00 2010 -0400" }, "message": "ext4: Add new tracepoints to track mballoc\u0027s buddy bitmap loads\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n" }, { "commit": "32c0edaeaad74a7883e736ae0f3798784cfc2a80", "tree": "e70784ed690172cb0f1b4365b93aa077d40219c9", "parents": [ "80decc70afc57c87eee9d6b836aec2ecacba3457" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri Apr 23 10:38:03 2010 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri May 14 14:33:15 2010 -0400" }, "message": "tracing: Remove duplicate id information in event structure\n\nNow that the trace_event structure is embedded in the ftrace_event_call\nstructure, there is no need for the ftrace_event_call id field.\nThe id field is the same as the trace_event type field.\n\nRemoving the id and re-arranging the structure brings down the tracepoint\nfootprint by another 5K.\n\n text\t data\t bss\t dec\t hex\tfilename\n4913961\t1088356\t 861512\t6863829\t 68bbd5\tvmlinux.orig\n4895024\t1023812\t 861512\t6780348\t 6775bc\tvmlinux.print\n4894944\t1018052\t 861512\t6774508\t 675eec\tvmlinux.id\n\nAcked-by: Mathieu Desnoyers \u003cmathieu.desnoyers@efficios.com\u003e\nAcked-by: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "80decc70afc57c87eee9d6b836aec2ecacba3457", "tree": "3aec4c67a5518a9c4e60a6914c5dbb9eb82e952f", "parents": [ "a9a5776380208a3e48a92d0c763ee1a3b486fb73" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri Apr 23 10:00:22 2010 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri May 14 14:20:34 2010 -0400" }, "message": "tracing: Move print functions into event class\n\nCurrently, every event has its own trace_event structure. This is\nfine since the structure is needed anyway. But the print function\nstructure (trace_event_functions) is now separate. Since the output\nof the trace event is done by the class (with the exception of events\ndefined by DEFINE_EVENT_PRINT), it makes sense to have the class\ndefine the print functions that all events in the class can use.\n\nThis makes a bigger deal with the syscall events since all syscall events\nuse the same class. The savings here is another 30K.\n\n text\t data\t bss\t dec\t hex\tfilename\n4913961\t1088356\t 861512\t6863829\t 68bbd5\tvmlinux.orig\n4900382\t1048964\t 861512\t6810858\t 67ecea\tvmlinux.init\n4900446\t1049028\t 861512\t6810986\t 67ed6a\tvmlinux.preprint\n4895024\t1023812\t 861512\t6780348\t 6775bc\tvmlinux.print\n\nTo accomplish this, and to let the class know what event is being\nprinted, the event structure is embedded in the ftrace_event_call\nstructure. This should not be an issues since the event structure\nwas created for each event anyway.\n\nAcked-by: Mathieu Desnoyers \u003cmathieu.desnoyers@efficios.com\u003e\nAcked-by: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "a9a5776380208a3e48a92d0c763ee1a3b486fb73", "tree": "5ecd41c3b373e2156f5bf748ae777e022296a30c", "parents": [ "0405ab80aa94afb13bf9ac4a6fc9f2923d4b9114" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Thu Apr 22 18:46:14 2010 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri May 14 14:20:32 2010 -0400" }, "message": "tracing: Allow events to share their print functions\n\nMultiple events may use the same method to print their data.\nInstead of having all events have a pointer to their print funtions,\nthe trace_event structure now points to a trace_event_functions structure\nthat will hold the way to print ouf the event.\n\nThe event itself is now passed to the print function to let the print\nfunction know what kind of event it should print.\n\nThis opens the door to consolidating the way several events print\ntheir output.\n\n text\t data\t bss\t dec\t hex\tfilename\n4913961\t1088356\t 861512\t6863829\t 68bbd5\tvmlinux.orig\n4900382\t1048964\t 861512\t6810858\t 67ecea\tvmlinux.init\n4900446\t1049028\t 861512\t6810986\t 67ed6a\tvmlinux.preprint\n\nThis change slightly increases the size but is needed for the next change.\n\nv3: Fix the branch tracer events to handle this change.\n\nv2: Fix the new function graph tracer event calls to handle this change.\n\nAcked-by: Mathieu Desnoyers \u003cmathieu.desnoyers@efficios.com\u003e\nAcked-by: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "0405ab80aa94afb13bf9ac4a6fc9f2923d4b9114", "tree": "43eedc09bb15ecfda26adb661d59badeacea0de6", "parents": [ "2e33af029556cb8bd22bf4f86f42d540249177ea" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Thu Apr 22 11:46:44 2010 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri May 14 14:20:30 2010 -0400" }, "message": "tracing: Move raw_init from events to class\n\nThe raw_init function pointer in the event is used to initialize\nvarious kinds of events. The type of initialization needed is usually\nclassed to the kind of event it is.\n\nTwo events with the same class will always have the same initialization\nfunction, so it makes sense to move this to the class structure.\n\nPerhaps even making a special system structure would work since\nthe initialization is the same for all events within a system.\nBut since there\u0027s no system structure (yet), this will just move it\nto the class.\n\n text\t data\t bss\t dec\t hex\tfilename\n4913961\t1088356\t 861512\t6863829\t 68bbd5\tvmlinux.orig\n4900375\t1053380\t 861512\t6815267\t 67fe23\tvmlinux.fields\n4900382\t1048964\t 861512\t6810858\t 67ecea\tvmlinux.init\n\nThe text grew very slightly, but this is a constant growth that happened\nwith the changing of the C files that call the init code.\nThe bigger savings is the data which will be saved the more events share\na class.\n\nAcked-by: Mathieu Desnoyers \u003cmathieu.desnoyers@efficios.com\u003e\nAcked-by: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "2e33af029556cb8bd22bf4f86f42d540249177ea", "tree": "8a479d21300c7692d61093846054f626e3e71ed5", "parents": [ "2239291aeb0379fe47980b0e560e0eb9fd7e82ec" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Thu Apr 22 10:35:55 2010 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri May 14 14:20:23 2010 -0400" }, "message": "tracing: Move fields from event to class structure\n\nMove the defined fields from the event to the class structure.\nSince the fields of the event are defined by the class they belong\nto, it makes sense to have the class hold the information instead\nof the individual events. The events of the same class would just\nhold duplicate information.\n\nAfter this change the size of the kernel dropped another 3K:\n\n text\t data\t bss\t dec\t hex\tfilename\n4913961\t1088356\t 861512\t6863829\t 68bbd5\tvmlinux.orig\n4900252\t1057412\t 861512\t6819176\t 680d68\tvmlinux.regs\n4900375\t1053380\t 861512\t6815267\t 67fe23\tvmlinux.fields\n\nAlthough the text increased, this was mainly due to the C files\nhaving to adapt to the change. This is a constant increase, where\nnew tracepoints will not increase the Text. But the big drop is\nin the data size (as well as needed allocations to hold the fields).\nThis will give even more savings as more tracepoints are created.\n\nNote, if just TRACE_EVENT()s are used and not DECLARE_EVENT_CLASS()\nwith several DEFINE_EVENT()s, then the savings will be lost. But\nwe are pushing developers to consolidate events with DEFINE_EVENT()\nso this should not be an issue.\n\nThe kprobes define a unique class to every new event, but are dynamic\nso it should not be a issue.\n\nThe syscalls however have a single class but the fields for the individual\nevents are different. The syscalls use a metadata to define the\nfields. I moved the fields list from the event to the metadata and\nadded a \"get_fields()\" function to the class. This function is used\nto find the fields. For normal events and kprobes, get_fields() just\nreturns a pointer to the fields list_head in the class. For syscall\nevents, it returns the fields list_head in the metadata for the event.\n\nv2: Fixed the syscall fields. The syscall metadata needs a list\n of fields for both enter and exit.\n\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nAcked-by: Mathieu Desnoyers \u003cmathieu.desnoyers@efficios.com\u003e\nAcked-by: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nCc: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "2239291aeb0379fe47980b0e560e0eb9fd7e82ec", "tree": "e75bb60ec24e6fd7137f01db48e0ea7e5b1eddd4", "parents": [ "38516ab59fbc5b3bb278cf5e1fe2867c70cff32e" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Wed Apr 21 12:27:06 2010 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri May 14 14:19:14 2010 -0400" }, "message": "tracing: Remove per event trace registering\n\nThis patch removes the register functions of TRACE_EVENT() to enable\nand disable tracepoints. The registering of a event is now down\ndirectly in the trace_events.c file. The tracepoint_probe_register()\nis now called directly.\n\nThe prototypes are no longer type checked, but this should not be\nan issue since the tracepoints are created automatically by the\nmacros. If a prototype is incorrect in the TRACE_EVENT() macro, then\nother macros will catch it.\n\nThe trace_event_class structure now holds the probes to be called\nby the callbacks. This removes needing to have each event have\na separate pointer for the probe.\n\nTo handle kprobes and syscalls, since they register probes in a\ndifferent manner, a \"reg\" field is added to the ftrace_event_class\nstructure. If the \"reg\" field is assigned, then it will be called for\nenabling and disabling of the probe for either ftrace or perf. To let\nthe reg function know what is happening, a new enum (trace_reg) is\ncreated that has the type of control that is needed.\n\nWith this new rework, the 82 kernel events and 618 syscall events\nhas their footprint dramatically lowered:\n\n text\t data\t bss\t dec\t hex\tfilename\n4913961\t1088356\t 861512\t6863829\t 68bbd5\tvmlinux.orig\n4914025\t1088868\t 861512\t6864405\t 68be15\tvmlinux.class\n4918492\t1084612\t 861512\t6864616\t 68bee8\tvmlinux.tracepoint\n4900252\t1057412\t 861512\t6819176\t 680d68\tvmlinux.regs\n\nThe size went from 6863829 to 6819176, that\u0027s a total of 44K\nin savings. With tracepoints being continuously added, this is\ncritical that the footprint becomes minimal.\n\nv5: Added #ifdef CONFIG_PERF_EVENTS around a reference to perf\n specific structure in trace_events.c.\n\nv4: Fixed trace self tests to check probe because regfunc no longer\n exists.\n\nv3: Updated to handle void *data in beginning of probe parameters.\n Also added the tracepoint: check_trace_callback_type_##call().\n\nv2: Changed the callback probes to pass void * and typecast the\n value within the function.\n\nAcked-by: Mathieu Desnoyers \u003cmathieu.desnoyers@efficios.com\u003e\nAcked-by: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "38516ab59fbc5b3bb278cf5e1fe2867c70cff32e", "tree": "904476d7780a27001281b9cb93c7959128f9a1d7", "parents": [ "53da59aa6dd881fd0bbdd058a8a299d90ce9dd1d" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue Apr 20 17:04:50 2010 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri May 14 09:50:34 2010 -0400" }, "message": "tracing: Let tracepoints have data passed to tracepoint callbacks\n\nThis patch adds data to be passed to tracepoint callbacks.\n\nThe created functions from DECLARE_TRACE() now need a mandatory data\nparameter. For example:\n\nDECLARE_TRACE(mytracepoint, int value, value)\n\nWill create the register function:\n\nint register_trace_mytracepoint((void(*)(void *data, int value))probe,\n void *data);\n\nAs the first argument, all callbacks (probes) must take a (void *data)\nparameter. So a callback for the above tracepoint will look like:\n\nvoid myprobe(void *data, int value)\n{\n}\n\nThe callback may choose to ignore the data parameter.\n\nThis change allows callbacks to register a private data pointer along\nwith the function probe.\n\n\tvoid mycallback(void *data, int value);\n\n\tregister_trace_mytracepoint(mycallback, mydata);\n\nThen the mycallback() will receive the \"mydata\" as the first parameter\nbefore the args.\n\nA more detailed example:\n\n DECLARE_TRACE(mytracepoint, TP_PROTO(int status), TP_ARGS(status));\n\n /* In the C file */\n\n DEFINE_TRACE(mytracepoint, TP_PROTO(int status), TP_ARGS(status));\n\n [...]\n\n trace_mytracepoint(status);\n\n /* In a file registering this tracepoint */\n\n int my_callback(void *data, int status)\n {\n\tstruct my_struct my_data \u003d data;\n\t[...]\n }\n\n [...]\n\tmy_data \u003d kmalloc(sizeof(*my_data), GFP_KERNEL);\n\tinit_my_data(my_data);\n\tregister_trace_mytracepoint(my_callback, my_data);\n\nThe same callback can also be registered to the same tracepoint as long\nas the data registered is different. Note, the data must also be used\nto unregister the callback:\n\n\tunregister_trace_mytracepoint(my_callback, my_data);\n\nBecause of the data parameter, tracepoints declared this way can not have\nno args. That is:\n\n DECLARE_TRACE(mytracepoint, TP_PROTO(void), TP_ARGS());\n\nwill cause an error.\n\nIf no arguments are needed, a new macro can be used instead:\n\n DECLARE_TRACE_NOARGS(mytracepoint);\n\nSince there are no arguments, the proto and args fields are left out.\n\nThis is part of a series to make the tracepoint footprint smaller:\n\n text\t data\t bss\t dec\t hex\tfilename\n4913961\t1088356\t 861512\t6863829\t 68bbd5\tvmlinux.orig\n4914025\t1088868\t 861512\t6864405\t 68be15\tvmlinux.class\n4918492\t1084612\t 861512\t6864616\t 68bee8\tvmlinux.tracepoint\n\nAgain, this patch also increases the size of the kernel, but\nlays the ground work for decreasing it.\n\n v5: Fixed net/core/drop_monitor.c to handle these updates.\n\n v4: Moved the DECLARE_TRACE() DECLARE_TRACE_NOARGS out of the\n #ifdef CONFIG_TRACE_POINTS, since the two are the same in both\n cases. The __DECLARE_TRACE() is what changes.\n Thanks to Frederic Weisbecker for pointing this out.\n\n v3: Made all register_* functions require data to be passed and\n all callbacks to take a void * parameter as its first argument.\n This makes the calling functions comply with C standards.\n\n Also added more comments to the modifications of DECLARE_TRACE().\n\n v2: Made the DECLARE_TRACE() have the ability to pass arguments\n and added a new DECLARE_TRACE_NOARGS() for tracepoints that\n do not need any arguments.\n\nAcked-by: Mathieu Desnoyers \u003cmathieu.desnoyers@efficios.com\u003e\nAcked-by: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Neil Horman \u003cnhorman@tuxdriver.com\u003e\nCc: David S. Miller \u003cdavem@davemloft.net\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "8f0820183056ad26dabc0202115848a92f1143fc", "tree": "c9e1cb9d41e37d5075704efbde3c97121820e0c5", "parents": [ "23e117fa44429cc054cb27d5621d64e4ced91e52" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue Apr 20 10:47:33 2010 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri May 14 09:33:49 2010 -0400" }, "message": "tracing: Create class struct for events\n\nThis patch creates a ftrace_event_class struct that event structs point to.\nThis class struct will be made to hold information to modify the\nevents. Currently the class struct only holds the events system name.\n\nThis patch slightly increases the size, but this change lays the ground work\nof other changes to make the footprint of tracepoints smaller.\n\nWith 82 standard tracepoints, and 618 system call tracepoints\n(two tracepoints per syscall: enter and exit):\n\n text\t data\t bss\t dec\t hex\tfilename\n4913961\t1088356\t 861512\t6863829\t 68bbd5\tvmlinux.orig\n4914025\t1088868\t 861512\t6864405\t 68be15\tvmlinux.class\n\nThis patch also cleans up some stale comments in ftrace.h.\n\nv2: Fixed missing semi-colon in macro.\n\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nAcked-by: Mathieu Desnoyers \u003cmathieu.desnoyers@efficios.com\u003e\nAcked-by: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "23e117fa44429cc054cb27d5621d64e4ced91e52", "tree": "a4b9d0902b9c6f009b2c297515221c1b9bed3af8", "parents": [ "668eb65f092902eb7dd526af73d4a7f025a94612", "a93d2f1744206827ccf416e2cdc5018aa503314e" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri May 14 09:29:52 2010 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri May 14 09:29:52 2010 -0400" }, "message": "Merge branch \u0027sched/core\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip into trace/tip/tracing/core-4\n" }, { "commit": "2c193c736803ceb547daec725e5c5d992d039f20", "tree": "3ae8b7a21ef6397ab626d192c8e90895469052be", "parents": [ "93135439459920c4d856f4ab8f068c030085c8df" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sat May 08 06:36:02 2010 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sun May 09 13:45:35 2010 +0200" }, "message": "tracing: Factorize lock events in a lock class\n\nlock_acquired, lock_contended and lock_release now share the\nsame prototype and format. Let\u0027s factorize them into a lock\nevent class.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Hitoshi Mitake \u003cmitake@dcl.info.waseda.ac.jp\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "93135439459920c4d856f4ab8f068c030085c8df", "tree": "a53defcfe4f99258e1fc7d408114cd34baa35e0c", "parents": [ "883a2a3189dae9d2912c417e47152f51cb922a3f" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sat May 08 06:24:25 2010 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sun May 09 13:45:34 2010 +0200" }, "message": "tracing: Drop the nested field from lock_release event\n\nDrop the nested field as we don\u0027t use it. Every nested state can\nbe computed from a state machine on post processing already.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Hitoshi Mitake \u003cmitake@dcl.info.waseda.ac.jp\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "883a2a3189dae9d2912c417e47152f51cb922a3f", "tree": "286a31a1d86b1e49afc79f61c9b83ca81840065b", "parents": [ "90c0e5fc7b73d2575c7367e1da70ff9521718e5e" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sat May 08 06:16:11 2010 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sun May 09 13:45:32 2010 +0200" }, "message": "tracing: Drop lock_acquired waittime field\n\nDrop the waittime field from the lock_acquired event, we can\ncalculate it by substracting the lock_acquired event timestamp\nwith the matching lock_acquire one.\n\nIt is not needed and takes useless space in the traces.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Hitoshi Mitake \u003cmitake@dcl.info.waseda.ac.jp\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "27a9da6538ee18046d7bff8e36a9f783542c54c3", "tree": "9f9944ca8742ec52f7e4a674f7475fc0378abdb8", "parents": [ "48652ced1533c3372f996a0d83b6e73b1f1c9381" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue May 04 20:36:56 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri May 07 11:28:17 2010 +0200" }, "message": "sched: Remove rq argument to the tracepoints\n\nstruct rq isn\u0027t visible outside of sched.o so its near useless to\nexpose the pointer, also there are no users of it, so remove it.\n\nAcked-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1272997616.1642.207.camel@laptop\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "2e26ca7150a4f2ab3e69471dfc65f131e7dd7a05", "tree": "6570a1670df3baafc7ab95b7f718a5dc2d04bd53", "parents": [ "03d646e62b06e9364e2dbb939d67934c6c9826cd" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Wed May 05 10:52:31 2010 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed May 05 11:46:17 2010 -0400" }, "message": "tracing: Fix tracepoint.h DECLARE_TRACE() to allow more than one header\n\nWhen more than one header is included under CREATE_TRACE_POINTS\nthe DECLARE_TRACE() macro is not defined back to its original meaning\nand the second include will fail to initialize the TRACE_EVENT()\nand DECLARE_TRACE() correctly.\n\nTo fix this the tracepoint.h file moves the define of DECLARE_TRACE()\nout of the #ifdef _LINUX_TRACEPOINT_H protection (just like the\ndefine of the TRACE_EVENT()). This way the define_trace.h will undef\nthe DECLARE_TRACE() at the end and allow new headers to start\nfrom scratch.\n\nThis patch also requires fixing the include/events/napi.h\n\nIt currently uses DECLARE_TRACE() and should be converted to a TRACE_EVENT()\nformat. But I\u0027ll leave that change to the authors of that file.\nBut since the napi.h file depends on using the CREATE_TRACE_POINTS\nand does not define its own DEFINE_TRACE() it must use the define_trace.h\nmethod instead.\n\nCc: Neil Horman \u003cnhorman@tuxdriver.com\u003e\nCc: David S. Miller \u003cdavem@davemloft.net\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@efficios.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "c446c1f9907e84d014edb0bf3501f30cb512e06a", "tree": "b4271bbcfb1ecaedb99428461bd22f56a5121366", "parents": [ "bf81623542332bc2cedf3db49cbb2edb724780d2" ], "author": { "name": "Martin K. Petersen", "email": "martin.petersen@oracle.com", "time": "Tue Mar 23 01:16:57 2010 -0400" }, "committer": { "name": "James Bottomley", "email": "James.Bottomley@suse.de", "time": "Fri Apr 30 12:52:08 2010 -0500" }, "message": "[SCSI] scsi_trace: Enhance SCSI command tracing\n\nVarious SCSI trace enhancements:\n\n - Display data and protection information scatterlist lengths in the\n trace output\n\n - Add support for VERIFY and WRITE SAME commands and decode the UNMAP\n bit if applicable\n\n - Add decoding of the PROTECT field for READ/VERIFY/WRITE/WRITE SAME\n commands as well as the EXPECTED INITIAL REFERENCE TAG field for\n their 32-byte variants\n\n - Decode READ CAPACITY(16), GET LBA STATUS, and UNMAP\n\nSigned-off-by: Martin K. Petersen \u003cmartin.petersen@oracle.com\u003e\nSigned-off-by: James Bottomley \u003cJames.Bottomley@suse.de\u003e\n" }, { "commit": "bf81623542332bc2cedf3db49cbb2edb724780d2", "tree": "47e4b784fefd533251b58ae1c2d8c8d280242bcf", "parents": [ "5a2e3995951176e1aaa63d17ae2e1d26ac99003d" ], "author": { "name": "Kei Tokunaga", "email": "tokunaga.keiich@jp.fujitsu.com", "time": "Thu Apr 01 20:41:40 2010 +0900" }, "committer": { "name": "James Bottomley", "email": "James.Bottomley@suse.de", "time": "Fri Apr 30 12:51:10 2010 -0500" }, "message": "[SCSI] add scsi trace core functions and put trace points\n\nSigned-off-by: Xiao Guangrong \u003cxiaoguangrong@cn.fujitsu.com\u003e\nSigned-off-by: Tomohiro Kusumi \u003ckusumi.tomohiro@jp.fujitsu.com\u003e\nSigned-off-by: Kei Tokunaga \u003ctokunaga.keiich@jp.fujitsu.com\u003e\nSigned-off-by: James Bottomley \u003cJames.Bottomley@suse.de\u003e\n" }, { "commit": "5a2e3995951176e1aaa63d17ae2e1d26ac99003d", "tree": "7305a7dc2c1822e5d4fec610d1c9bb6ddfadce70", "parents": [ "59c31b69d278b760fb84266f99c1dcb0f73ec51d" ], "author": { "name": "Kei Tokunaga", "email": "tokunaga.keiich@jp.fujitsu.com", "time": "Thu Apr 01 20:40:58 2010 +0900" }, "committer": { "name": "James Bottomley", "email": "James.Bottomley@suse.de", "time": "Fri Apr 30 12:50:22 2010 -0500" }, "message": "[SCSI] ftrace: add __print_hex()\n\n__print_hex() prints values in an array in hex (w/o \u00270x\u0027) (space separated)\nEX) 92 33 32 f3 ee 4d\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nSigned-off-by: Tomohiro Kusumi \u003ckusumi.tomohiro@jp.fujitsu.com\u003e\nSigned-off-by: Kei Tokunaga \u003ctokunaga.keiich@jp.fujitsu.com\u003e\nAcked-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nSigned-off-by: James Bottomley \u003cJames.Bottomley@suse.de\u003e\n" }, { "commit": "b971f06187d83b5c03d2b597cccdfef421c0ca91", "tree": "849dbe485ca9472bea002f94681882ce103fe3cd", "parents": [ "cb6e943ccf19ab6d3189147e9d625a992e016084", "c1ab9cab75098924fa8226a8a371de66977439df" ], "author": { "name": "Robert Richter", "email": "robert.richter@amd.com", "time": "Fri Apr 23 16:47:51 2010 +0200" }, "committer": { "name": "Robert Richter", "email": "robert.richter@amd.com", "time": "Fri Apr 23 16:47:51 2010 +0200" }, "message": "Merge commit \u0027tip/tracing/core\u0027 into oprofile/core\n\nConflicts:\n\tdrivers/oprofile/cpu_buffer.c\n\nSigned-off-by: Robert Richter \u003crobert.richter@amd.com\u003e\n" }, { "commit": "70bce3ba77540ebe77b8c0e1ac38d281a23fbb5e", "tree": "34b09a49228f0949ff49dce66a433b0dfd83a2dc", "parents": [ "6eca8cc35b50af1037bc919106dd6dd332c959c2", "d5a30458a90597915977f06e79406b664a41b8ac" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Apr 23 11:10:28 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Apr 23 11:10:30 2010 +0200" }, "message": "Merge branch \u0027linus\u0027 into perf/core\n\nMerge reason: merge the latest fixes, update to latest -rc.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ac0053fd51d2bac09a7d4b4a59f6dac863bd4373", "tree": "00c32e14428853f352fa3828d0131653ad6a7c69", "parents": [ "b15c7b1cee119999e9eafcd602d24a595e77adac", "01bf0b64579ead8a82e7cfc32ae44bc667e7ad0f" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Apr 21 09:47:00 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Apr 21 09:47:05 2010 +0200" }, "message": "Merge commit \u0027v2.6.34-rc5\u0027 into tracing/core\n\nMerge reason: pick up latest -rc\u0027s.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "2f4084209adc77f9a1c9f38db3019a509e167882", "tree": "775657114c885505ecc46605e29ea1470e986f76", "parents": [ "2f10ffcfb28beb35137d9e86992c771b4a6c5f2a", "3440c49f5c5ecb4f29b0544aa87da71888404f8f" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Apr 09 11:50:29 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Apr 09 11:50:29 2010 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.dk/linux-2.6-block\n\n* \u0027for-linus\u0027 of git://git.kernel.dk/linux-2.6-block: (34 commits)\n cfq-iosched: Fix the incorrect timeslice accounting with forced_dispatch\n loop: Update mtime when writing using aops\n block: expose the statistics in blkio.time and blkio.sectors for the root cgroup\n backing-dev: Handle class_create() failure\n Block: Fix block/elevator.c elevator_get() off-by-one error\n drbd: lc_element_by_index() never returns NULL\n cciss: unlock on error path\n cfq-iosched: Do not merge queues of BE and IDLE classes\n cfq-iosched: Add additional blktrace log messages in CFQ for easier debugging\n i2o: Remove the dangerous kobj_to_i2o_device macro\n block: remove 16 bytes of padding from struct request on 64bits\n cfq-iosched: fix a kbuild regression\n block: make CONFIG_BLK_CGROUP visible\n Remove GENHD_FL_DRIVERFS\n block: Export max number of segments and max segment size in sysfs\n block: Finalize conversion of block limits functions\n block: Fix overrun in lcm() and move it to lib\n vfs: improve writeback_inodes_wb()\n paride: fix off-by-one test\n drbd: fix al-to-on-disk-bitmap for 4k logical_block_size\n ...\n" }, { "commit": "c1ab9cab75098924fa8226a8a371de66977439df", "tree": "767e77302ca8f2eb781c60624bc8518cd50ba6eb", "parents": [ "ff0ff84a0767df48d728c36510365344a7e7d582", "f5284e7635787224dda1a2bf82a4c56b1c75671f" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Apr 08 09:06:12 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Apr 08 10:18:47 2010 +0200" }, "message": "Merge branch \u0027linus\u0027 into tracing/core\n\nConflicts:\n\tinclude/linux/module.h\n\tkernel/module.c\n\nSemantic conflict:\n\tinclude/trace/events/module.h\n\nMerge reason: Resolve the conflict with upstream commit 5fbfb18 (\"Fix up\n possibly racy module refcounting\")\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "6cc8a7c1d8560c042f486b23318a6291569ab96b", "tree": "bda763c18ab78e92bb36d7e250765a493cce4b19", "parents": [ "6f4dee06fbf0133917f3d76fa3fb50e18b10c1f5" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Fri Mar 19 01:23:53 2010 +0100" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sun Apr 04 15:23:07 2010 +0200" }, "message": "perf: Fetch hot regs from the template caller\n\nTrace events can be defined from a template using\nDECLARE_EVENT_CLASS/DEFINE_EVENT or directly with TRACE_EVENT.\n\nIn both cases we have a template tracepoint handler, used to\nrecord the trace, to which we pass our ftrace event instance.\n\nIn the function level, if the class is named \"foo\" and the event\nis named \"blah\", we have the following chain of calls:\n\nperf_trace_blah() -\u003e perf_trace_templ_foo()\n\nIn the case we have several events sharing the class \"blah\",\nwe\u0027ll have multiple users of perf_trace_templ_foo(), and it\nwon\u0027t be inlined by the compiler. This is usually what happens\nwith the DECLARE_EVENT_CLASS/DEFINE_EVENT based definition.\n\nBut if perf_trace_blah() is the only caller of perf_trace_templ_foo()\nthere are fair chances that it will be inlined.\n\nThe problem is that we fetch the regs from perf_trace_templ_foo()\nafter we rewinded the frame pointer to the second caller, we want\nto reach the caller of perf_trace_blah() to get the right source\nof the event. And we do this by always assuming that\nperf_trace_templ_foo() is not inlined. But as shown above this\nis not always true. And if it is inlined we miss the first caller,\nlosing the most important level of precision.\n\nWe get:\n\t 61.31% ls [kernel.kallsyms] [k] do_softirq\n |\n --- do_softirq\n irq_exit\n do_IRQ\n common_interrupt\n |\n |--25.00%-- tty_buffer_request_room\n\nInstead of:\n\t 61.31% ls [kernel.kallsyms] [k] __do_softirq\n |\n --- __do_softirq\n do_softirq\n irq_exit\n do_IRQ\n common_interrupt\n |\n |--25.00%-- tty_buffer_request_room\n\nTo fix this, we fetch the regs from perf_trace_blah() rather than\nperf_trace_templ_foo() so that we don\u0027t have to deal with inlining\nsurprises.\n\nThat also bring us the advantage of having the true source of the\nevent even if we don\u0027t have frame pointers.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "eb0c53771fb2f5f66b0edb3ebce33be4bbf1c285", "tree": "1b5d4fd86e4c72482fa07aa6d57ba9f6cab72423", "parents": [ "ae832d1e03ac9bf09fb8a07fb37908ab40c7cd0e" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Mon Mar 29 14:25:18 2010 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Mar 31 22:56:59 2010 -0400" }, "message": "tracing: Fix compile error in module tracepoints when MODULE_UNLOAD not set\n\nIf modules are configured in the build but unloading of modules is not,\nthen the refcnt is not defined. Place the get/put module tracepoints\nunder CONFIG_MODULE_UNLOAD since it references this field in the module\nstructure.\n\nAs a side-effect, this patch also reduces the code when MODULE_UNLOAD\nis not set, because these unused tracepoints are not created.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "ae832d1e03ac9bf09fb8a07fb37908ab40c7cd0e", "tree": "cf754c5242e66aa0349559af880db5fa29af6f2a", "parents": [ "50354a8a28d0c91695a2d6d25b5a821bfe557a07" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Wed Mar 24 10:57:43 2010 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Mar 31 22:56:58 2010 -0400" }, "message": "tracing: Remove side effect from module tracepoints that caused a GPF\n\nRemove the @refcnt argument, because it has side-effects, and arguments with\nside-effects are not skipped by the jump over disabled instrumentation and are\nexecuted even when the tracepoint is disabled.\n\nThis was also causing a GPF as found by Randy Dunlap:\n\nSubject: 2.6.33 GP fault only when built with tracing\nLKML-Reference: \u003c4BA2B69D.3000309@oracle.com\u003e\n\nNote, the current 2.6.34-rc has a fix for the actual cause of the GPF,\nbut this fixes one of its triggers.\n\nTested-by: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nAcked-by: Mathieu Desnoyers \u003cmathieu.desnoyers@efficios.com\u003e\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4BA97FA7.6040406@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "50354a8a28d0c91695a2d6d25b5a821bfe557a07", "tree": "02b582c0618f35ecb7c15439054ebade31c9b05d", "parents": [ "4bdde044dc36ac7b01f7502394d52619af9d1927" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Wed Mar 24 10:58:24 2010 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Mar 31 22:56:56 2010 -0400" }, "message": "tracing: Update comments\n\nMake some comments consistent with the code.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4BA97FD0.7090202@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "4bdde044dc36ac7b01f7502394d52619af9d1927", "tree": "08e00ab8c3970c986e8bc0b3c039b6bf13b62cba", "parents": [ "2eaa9cfdf33b8d7fb7aff27792192e0019ae8fc6" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Wed Mar 24 10:58:05 2010 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Mar 31 22:56:54 2010 -0400" }, "message": "tracing: Convert some signal events to DEFINE_TRACE\n\nUse DECLARE_EVENT_CLASS to remove duplicate code:\n\ntext data bss dec hex filename\n 23639 6084 8 29731 7423 kernel/signal.o.orig\n 22727 6084 8 28819 7093 kernel/signal.o\n\n2 events are converted:\n\n signal_queue_overflow: signal_overflow_fail, signal_lose_info\n\nNo functional change.\n\nAcked-by: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4BA97FBD.8070703@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "b4b7a4ef097f288f724420b473dbf92a89c0ab7e", "tree": "23ad8101e3e77c32a8d1e1b95a9c1cd7f7a475b7", "parents": [ "e9ce335df51ff782035a15c261a3c0c9892a1767", "a3d3203e4bb40f253b1541e310dc0f9305be7c84" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri Mar 19 08:05:10 2010 +0100" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri Mar 19 08:05:10 2010 +0100" }, "message": "Merge branch \u0027master\u0027 into for-linus\n\nConflicts:\n\tblock/Kconfig\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "f82c37e7bb4c4d9b6a476c642d5c2d2efbd6f240", "tree": "09fc553c2fb6f527962048d139159dc139e04afc", "parents": [ "c6b9e73f2fee8bb86058f296de808b326473456b", "dcd5c1662db59a6b82942f47fb6ac9dd63f6d3dd" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Mar 18 16:52:46 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Mar 18 16:52:46 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: (35 commits)\n perf: Fix unexported generic perf_arch_fetch_caller_regs\n perf record: Don\u0027t try to find buildids in a zero sized file\n perf: export perf_trace_regs and perf_arch_fetch_caller_regs\n perf, x86: Fix hw_perf_enable() event assignment\n perf, ppc: Fix compile error due to new cpu notifiers\n perf: Make the install relative to DESTDIR if specified\n kprobes: Calculate the index correctly when freeing the out-of-line execution slot\n perf tools: Fix sparse CPU numbering related bugs\n perf_event: Fix oops triggered by cpu offline/online\n perf: Drop the obsolete profile naming for trace events\n perf: Take a hot regs snapshot for trace events\n perf: Introduce new perf_fetch_caller_regs() for hot regs snapshot\n perf/x86-64: Use frame pointer to walk on irq and process stacks\n lockdep: Move lock events under lockdep recursion protection\n perf report: Print the map table just after samples for which no map was found\n perf report: Add multiple event support\n perf session: Change perf_session post processing functions to take histogram tree\n perf session: Add storage for seperating event types in report\n perf session: Change add_hist_entry to take the tree root instead of session\n perf record: Add ID and to recorded event data when recording multiple events\n ...\n" }, { "commit": "4e3eaddd142e2142c048c5052a0a9d2604fccfc6", "tree": "5bc45a286502e54e790c54948f22364c5afd9d89", "parents": [ "8655e7e3ddec60603c4f6c14cdf642e2ba198df8", "b97c4bc16734a2e597dac7f91ee9eb78f4aeef9a" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Mar 13 14:43:01 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Mar 13 14:43:01 2010 -0800" }, "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 locking: Make sparse work with inline spinlocks and rwlocks\n x86/mce: Fix RCU lockdep splats\n rcu: Increase RCU CPU stall timeouts if PROVE_RCU\n ftrace: Replace read_barrier_depends() with rcu_dereference_raw()\n rcu: Suppress RCU lockdep warnings during early boot\n rcu, ftrace: Fix RCU lockdep splat in ftrace_perf_buf_prepare()\n rcu: Suppress __mpol_dup() false positive from RCU lockdep\n rcu: Make rcu_read_lock_sched_held() handle !PREEMPT\n rcu: Add control variables to lockdep_rcu_dereference() diagnostics\n rcu, cgroup: Relax the check in task_subsys_state() as early boot is now handled by lockdep-RCU\n rcu: Use wrapper function instead of exporting tasklist_lock\n sched, rcu: Fix rcu_dereference() for RCU-lockdep\n rcu: Make task_subsys_state() RCU-lockdep checks handle boot-time use\n rcu: Fix holdoff for accelerated GPs for last non-dynticked CPU\n x86/gart: Unexport gart_iommu_aperture\n\nFix trivial conflicts in kernel/trace/ftrace.c\n" }, { "commit": "97d5a22005f38057b4bc0d95f81cd26510268794", "tree": "b981789b1cec8ac36527e52204e407b32efa0ea6", "parents": [ "c530665c31c0140b74ca7689e7f836177796e5bd" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Fri Mar 05 05:35:37 2010 +0100" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Mar 10 14:47:18 2010 +0100" }, "message": "perf: Drop the obsolete profile naming for trace events\n\nDrop the obsolete \"profile\" naming used by perf for trace events.\nPerf can now do more than simple events counting, so generalize\nthe API naming.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\n" }, { "commit": "c530665c31c0140b74ca7689e7f836177796e5bd", "tree": "ac9ebb98aca58fdf84cc18958a94393a9a7bbdf3", "parents": [ "5331d7b84613b8325362dde53dc2bff2fb87d351" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Mar 03 07:16:16 2010 +0100" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Mar 10 14:40:38 2010 +0100" }, "message": "perf: Take a hot regs snapshot for trace events\n\nWe are taking a wrong regs snapshot when a trace event triggers.\nEither we use get_irq_regs(), which gives us the interrupted\nregisters if we are in an interrupt, or we use task_pt_regs()\nwhich gives us the state before we entered the kernel, assuming\nwe are lucky enough to be no kernel thread, in which case\ntask_pt_regs() returns the initial set of regs when the kernel\nthread was started.\n\nWhat we want is different. We need a hot snapshot of the regs,\nso that we can get the instruction pointer to record in the\nsample, the frame pointer for the callchain, and some other\nthings.\n\nLet\u0027s use the new perf_fetch_caller_regs() for that.\n\nComparison with perf record -e lock: -R -a -f -g\nBefore:\n\n perf [kernel] [k] __do_softirq\n |\n --- __do_softirq\n |\n |--55.16%-- __open\n |\n --44.84%-- __write_nocancel\n\nAfter:\n\n perf [kernel] [k] perf_tp_event\n |\n --- perf_tp_event\n |\n |--41.07%-- lock_acquire\n | |\n | |--39.36%-- _raw_spin_lock\n | | |\n | | |--7.81%-- hrtimer_interrupt\n | | | smp_apic_timer_interrupt\n | | | apic_timer_interrupt\n\nThe old case was producing unreliable callchains. Now having\nright frame and instruction pointers, we have the trace we\nwant.\n\nAlso syscalls and kprobe events already have the right regs,\nlet\u0027s use them instead of wasting a retrieval.\n\nv2: Follow the rename perf_save_regs() -\u003e perf_fetch_caller_regs()\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.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: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Archs \u003clinux-arch@vger.kernel.org\u003e\n" }, { "commit": "881245dcff29df992d8431392a41fb81549129f9", "tree": "8f1c276f962c6237932bbad438f54afc8d8ad520", "parents": [ "c2282adbdea3548ae0271c1b1b2deec5f56ad224" ], "author": { "name": "William Cohen", "email": "wcohen@redhat.com", "time": "Tue Mar 09 09:26:04 2010 +0100" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Tue Mar 09 09:26:04 2010 +0100" }, "message": "Add DocBook documentation for the block tracepoints.\n\nThis patch adds a simple description of the various block tracepoints\navailable in the kernel.\n\nSigned-off-by: William Cohen \u003cwcohen@redhat.com\u003e\nAcked-by: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "c812a51d11bbe983f4c24e32b59b265705ddd3c2", "tree": "d454f518db51a4de700cf3dcd4c3c71ee7288b47", "parents": [ "9467c4fdd66f6810cecef0f1173330f3c6e67d45", "d2be1651b736002e0c76d7095d6c0ba77b4a897c" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Mar 05 13:12:34 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Mar 05 13:12:34 2010 -0800" }, "message": "Merge branch \u0027kvm-updates/2.6.34\u0027 of git://git.kernel.org/pub/scm/virt/kvm/kvm\n\n* \u0027kvm-updates/2.6.34\u0027 of git://git.kernel.org/pub/scm/virt/kvm/kvm: (145 commits)\n KVM: x86: Add KVM_CAP_X86_ROBUST_SINGLESTEP\n KVM: VMX: Update instruction length on intercepted BP\n KVM: Fix emulate_sys[call, enter, exit]()\u0027s fault handling\n KVM: Fix segment descriptor loading\n KVM: Fix load_guest_segment_descriptor() to inject page fault\n KVM: x86 emulator: Forbid modifying CS segment register by mov instruction\n KVM: Convert kvm-\u003erequests_lock to raw_spinlock_t\n KVM: Convert i8254/i8259 locks to raw_spinlocks\n KVM: x86 emulator: disallow opcode 82 in 64-bit mode\n KVM: x86 emulator: code style cleanup\n KVM: Plan obsolescence of kernel allocated slots, paravirt mmu\n KVM: x86 emulator: Add LOCK prefix validity checking\n KVM: x86 emulator: Check CPL level during privilege instruction emulation\n KVM: x86 emulator: Fix popf emulation\n KVM: x86 emulator: Check IOPL level during io instruction emulation\n KVM: x86 emulator: fix memory access during x86 emulation\n KVM: x86 emulator: Add Virtual-8086 mode of emulation\n KVM: x86 emulator: Add group9 instruction decoding\n KVM: x86 emulator: Add group8 instruction decoding\n KVM: do not store wqh in irqfd\n ...\n\nTrivial conflicts in Documentation/feature-removal-schedule.txt\n" }, { "commit": "1f63b9c15b17d5af360c180f5c71537e954d5d3b", "tree": "4da17d6f2035ae093680fa2caa3e1c84b44bb237", "parents": [ "b24bc1e61cec2174faf5dfa632da16b6ca17144f", "64e290ec69be39f1887fa0b403c1e417b6b038e7" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Mar 05 10:47:00 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Mar 05 10:47:00 2010 -0800" }, "message": "Merge branch \u0027for_linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4\n\n* \u0027for_linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (36 commits)\n ext4: fix up rb_root initializations to use RB_ROOT\n ext4: Code cleanup for EXT4_IOC_MOVE_EXT ioctl\n ext4: Fix the NULL reference in double_down_write_data_sem()\n ext4: Fix insertion point of extent in mext_insert_across_blocks()\n ext4: consolidate in_range() definitions\n ext4: cleanup to use ext4_grp_offs_to_block()\n ext4: cleanup to use ext4_group_first_block_no()\n ext4: Release page references acquired in ext4_da_block_invalidatepages\n ext4: Fix ext4_quota_write cross block boundary behaviour\n ext4: Convert BUG_ON checks to use ext4_error() instead\n ext4: Use direct_IO_no_locking in ext4 dio read\n ext4: use ext4_get_block_write in buffer write\n ext4: mechanical rename some of the direct I/O get_block\u0027s identifiers\n ext4: make \"offset\" consistent in ext4_check_dir_entry()\n ext4: Handle non empty on-disk orphan link\n ext4: explicitly remove inode from orphan list after failed direct io\n ext4: fix error handling in migrate\n ext4: deprecate obsoleted mount options\n ext4: Fix fencepost error in chosing choosing group vs file preallocation.\n jbd2: clean up an assertion in jbd2_journal_commit_transaction()\n ...\n" }, { "commit": "8d53dd546f36073e0d29b0cfc24c665db301e3e7", "tree": "1cd2582e669fe2ff580ddc707705e5efb18251de", "parents": [ "99ee4ca746dda71326db7645463b4075ac1d665c" ], "author": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Wed Mar 03 17:50:18 2010 -0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Mar 04 12:07:35 2010 +0100" }, "message": "rcu, ftrace: Fix RCU lockdep splat in ftrace_perf_buf_prepare()\n\nChange the pair of rcu_dereference() calls in\nftrace_perf_buf_prepare() to rcu_dereference_sched().\n\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: laijs@cn.fujitsu.com\nCc: dipankar@in.ibm.com\nCc: mathieu.desnoyers@polymtl.ca\nCc: josh@joshtriplett.org\nCc: dvhltc@us.ibm.com\nCc: niv@us.ibm.com\nCc: peterz@infradead.org\nCc: Valdis.Kletnieks@vt.edu\nCc: dhowells@redhat.com\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c1267667418-32233-3-git-send-email-paulmck@linux.vnet.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "90bb6fc556ab255abd798bcf4ff5769690ab2eea", "tree": "dd17338dbcb5a2963800639bcf097595861810d2", "parents": [ "43db669730743fcc2a74b641ff4d77781eb15bfa" ], "author": { "name": "Avi Kivity", "email": "avi@redhat.com", "time": "Thu Dec 31 12:10:16 2009 +0200" }, "committer": { "name": "Marcelo Tosatti", "email": "mtosatti@redhat.com", "time": "Mon Mar 01 12:36:09 2010 -0300" }, "message": "KVM: MMU: Add tracepoint for guest page aging\n\nSigned-off-by: Avi Kivity \u003cavi@redhat.com\u003e\n" }, { "commit": "0c04851c0c093ce98ab4ca69556480d779292418", "tree": "58562c88457cf9dc9650b963aec974fe58ab9351", "parents": [ "8ae099127668de80e4babba73bb492740ce3a1be" ], "author": { "name": "Avi Kivity", "email": "avi@redhat.com", "time": "Thu Jan 21 15:31:52 2010 +0200" }, "committer": { "name": "Marcelo Tosatti", "email": "mtosatti@redhat.com", "time": "Mon Mar 01 12:36:05 2010 -0300" }, "message": "KVM: trace guest fpu loads and unloads\n\nSigned-off-by: Avi Kivity \u003cavi@redhat.com\u003e\nSigned-off-by: Marcelo Tosatti \u003cmtosatti@redhat.com\u003e\n" }, { "commit": "6556a6743549defc32e5f90ee2cb1ecd833a44c3", "tree": "622306583d4a3c13235a8bfc012854c125c597f1", "parents": [ "e0d272429a34ff143bfa04ee8e29dd4eed2964c7", "1dd2980d990068e20045b90c424518cc7f3657ff" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Feb 28 10:20:25 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Feb 28 10:20:25 2010 -0800" }, "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: (172 commits)\n perf_event, amd: Fix spinlock initialization\n perf_event: Fix preempt warning in perf_clock()\n perf tools: Flush maps on COMM events\n perf_events, x86: Split PMU definitions into separate files\n perf annotate: Handle samples not at objdump output addr boundaries\n perf_events, x86: Remove superflous MSR writes\n perf_events: Simplify code by removing cpu argument to hw_perf_group_sched_in()\n perf_events, x86: AMD event scheduling\n perf_events: Add new start/stop PMU callbacks\n perf_events: Report the MMAP pgoff value in bytes\n perf annotate: Defer allocating sym_priv-\u003ehist array\n perf symbols: Improve debugging information about symtab origins\n perf top: Use a macro instead of a constant variable\n perf symbols: Check the right return variable\n perf/scripts: Tag syscall_name helper as not yet available\n perf/scripts: Add perf-trace-python Documentation\n perf/scripts: Remove unnecessary PyTuple resizes\n perf/scripts: Add syscall tracing scripts\n perf/scripts: Add Python scripting engine\n perf/scripts: Remove check-perf-trace from listed scripts\n ...\n\nFix trivial conflict in tools/perf/util/probe-event.c\n" }, { "commit": "86c38a31aa7f2dd6e74a262710bf8ebf7455acc5", "tree": "167d2c46917233373e597cc5f82d3f9132170e65", "parents": [ "0c54dd341fb701928b8e5dca91ced1870c55b05b" ], "author": { "name": "Jeff Mahoney", "email": "jeffm@suse.com", "time": "Wed Feb 24 13:59:23 2010 -0500" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Thu Feb 25 09:38:11 2010 -0500" }, "message": "tracing: Fix ftrace_event_call alignment for use with gcc 4.5\n\nGCC 4.5 introduces behavior that forces the alignment of structures to\n use the largest possible value. The default value is 32 bytes, so if\n some structures are defined with a 4-byte alignment and others aren\u0027t\n declared with an alignment constraint at all - it will align at 32-bytes.\n\n For things like the ftrace events, this results in a non-standard array.\n When initializing the ftrace subsystem, we traverse the _ftrace_events\n section and call the initialization callback for each event. When the\n structures are misaligned, we could be treating another part of the\n structure (or the zeroed out space between them) as a function pointer.\n\n This patch forces the alignment for all the ftrace_event_call structures\n to 4 bytes.\n\n Without this patch, the kernel fails to boot very early when built with\n gcc 4.5.\n\n It\u0027s trivial to check the alignment of the members of the array, so it\n might be worthwhile to add something to the build system to do that\n automatically. Unfortunately, that only covers this case. I\u0027ve asked one\n of the gcc developers about adding a warning when this condition is seen.\n\nCc: stable@kernel.org\nSigned-off-by: Jeff Mahoney \u003cjeffm@suse.com\u003e\nLKML-Reference: \u003c4B85770B.6010901@suse.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "83f0d53993b2967e54186468b0fc4321447f68f1", "tree": "1e53910353eae38830e56199bc916caf4cd22362", "parents": [ "c7c6b1fe9f942c1a30585ec2210a09dfff238506" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue Feb 16 10:38:47 2010 -0500" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Tue Feb 16 10:38:47 2010 -0500" }, "message": "tracing: Add notrace to TRACE_EVENT implementation functions\n\nThe functions used to implement the TRACE_EVENT macro show up in\nfunction tracing. This is considered a distraction, and these should\nnot be displayed. For example:\n\n \u003cidle\u003e-0 [000] 57.202149: task_of \u003c-update_stats_wait_end\n \u003cidle\u003e-0 [000] 57.202149: ftrace_raw_event_sched_stat_wait \u003c-update_stats_wait_end\n \u003cidle\u003e-0 [000] 57.202150: ftrace_raw_event_id_sched_stat_template \u003c-ftrace_raw_event_sched_stat_wait\n \u003cidle\u003e-0 [000] 57.202150: sched_stat_wait: comm\u003dsshd pid\u003d2735 delay\u003d19207 [ns]\n\nThe \"ftrace_raw_event_*\" traces are just the utility functions used\nby TRACE_EVENT tracepoints.\n\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nRequested-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" } ], "next": "c965be10ca3cb0bdd04016c852764afaf8e647c8" }