)]}' { "log": [ { "commit": "8d57a98ccd0b4489003473979da8f5a1363ba7a3", "tree": "2982997ce66bb6a92c020b7189966c3097095fd7", "parents": [ "93caf8e69eac763f6a20cf253ace8e7fc1ab7953" ], "author": { "name": "Adrian Hunter", "email": "adrian.hunter@nokia.com", "time": "Wed Aug 11 14:17:49 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Aug 12 08:43:30 2010 -0700" }, "message": "block: add secure discard\n\nSecure discard is the same as discard except that all copies of the\ndiscarded sectors (perhaps created by garbage collection) must also be\nerased.\n\nSigned-off-by: Adrian Hunter \u003cadrian.hunter@nokia.com\u003e\nAcked-by: Jens Axboe \u003caxboe@kernel.dk\u003e\nCc: Kyungmin Park \u003ckmpark@infradead.org\u003e\nCc: Madhusudhan Chikkature \u003cmadhu.cr@ti.com\u003e\nCc: Christoph Hellwig \u003chch@lst.de\u003e\nCc: Ben Gardiner \u003cbengardiner@nanometrics.ca\u003e\nCc: \u003clinux-mmc@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "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": "78417334b5cb6e1f915b8fdcc4fce3f1a1b4420c", "tree": "8e3fce9f27fd058904c0a3247a5c5ebb8df9fbe8", "parents": [ "cd816a0d84377c4e87f55cbe934a23417f9f5743", "5f202bd5ca64132cdd7f186656bc0221f257733d" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Aug 07 17:06:54 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Aug 07 17:06:54 2010 -0700" }, "message": "Merge branch \u0027bkl/core\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing\n\n* \u0027bkl/core\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing:\n do_coredump: Do not take BKL\n init: Remove the BKL from startup code\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": "62c2a7d969f30163f733c81158254b3095b23e72", "tree": "3e5dd79d874b996757814562b874a18415599a61", "parents": [ "6e9624b8caec290d28b4c6d9ec75749df6372b87" ], "author": { "name": "Arnd Bergmann", "email": "arnd@arndb.de", "time": "Wed Jul 07 16:51:26 2010 +0200" }, "committer": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Sat Aug 07 18:26:08 2010 +0200" }, "message": "block: push BKL into blktrace ioctls\n\nThe blktrace driver currently needs the BKL, but\nwe should not need to take that in the block layer,\nso just push it down into the driver itself.\n\nIt is quite likely that the BKL is not actually\nrequired in blktrace code and could be removed\nin a follow-on patch.\n\nSigned-off-by: Arnd Bergmann \u003carnd@arndb.de\u003e\nAcked-by: Christoph Hellwig \u003chch@infradead.org\u003e\nSigned-off-by: Jens Axboe \u003cjaxboe@fusionio.com\u003e\n" }, { "commit": "7b6d91daee5cac6402186ff224c3af39d79f4a0e", "tree": "b1518cf0b6c301178e0a320f80610cd5b3aa7625", "parents": [ "33659ebbae262228eef4e0fe990f393d1f0ed941" ], "author": { "name": "Christoph Hellwig", "email": "hch@lst.de", "time": "Sat Aug 07 18:20:39 2010 +0200" }, "committer": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Sat Aug 07 18:20:39 2010 +0200" }, "message": "block: unify flags for struct bio and struct request\n\nRemove the current bio flags and reuse the request flags for the bio, too.\nThis allows to more easily trace the type of I/O from the filesystem\ndown to the block driver. There were two flags in the bio that were\nmissing in the requests: BIO_RW_UNPLUG and BIO_RW_AHEAD. Also I\u0027ve\nrenamed two request flags that had a superflous RW in them.\n\nNote that the flags are in bio.h despite having the REQ_ name - as\nblkdev.h includes bio.h that is the only way to go for now.\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\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": "b62ad9ab181a67207a4c8c373461b587c4861a68", "tree": "ace1572964d81f5f9bbc10b7960c1f742832d744", "parents": [ "af390084359a5de20046c901529b2b6a50b941cb", "b29230769e3482bbd62a07d6d9485371ee66a18f" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Aug 06 13:18:29 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Aug 06 13:18:29 2010 -0700" }, "message": "Merge branch \u0027timers-timekeeping-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027timers-timekeeping-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n um: Fix read_persistent_clock fallout\n kgdb: Do not access xtime directly\n powerpc: Clean up obsolete code relating to decrementer and timebase\n powerpc: Rework VDSO gettimeofday to prevent time going backwards\n clocksource: Add __clocksource_updatefreq_hz/khz methods\n x86: Convert common clocksources to use clocksource_register_hz/khz\n timekeeping: Make xtime and wall_to_monotonic static\n hrtimer: Cleanup direct access to wall_to_monotonic\n um: Convert to use read_persistent_clock\n timkeeping: Fix update_vsyscall to provide wall_to_monotonic offset\n powerpc: Cleanup xtime usage\n powerpc: Simplify update_vsyscall\n time: Kill off CONFIG_GENERIC_TIME\n time: Implement timespec_add\n x86: Fix vtime/file timestamp inconsistencies\n\nTrivial conflicts in Documentation/feature-removal-schedule.txt\n\nMuch less trivial conflicts in arch/powerpc/kernel/time.c resolved as\nper Thomas\u0027 earlier merge commit 47916be4e28c (\"Merge branch\n\u0027powerpc.cherry-picks\u0027 into timers/clocksource\")\n" }, { "commit": "c4efd6b569b2646e1346a08a4c40286f8bcb5f11", "tree": "bf33e8594ac4e628cc95f2ef25513788b8273601", "parents": [ "4aed2fd8e3181fea7c09ba79cf64e7e3f4413bf9", "0bcfe75807944106a3aa655a54bb610d62f3a7f5" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Aug 06 09:39:22 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Aug 06 09:39:22 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: (27 commits)\n sched: Use correct macro to display sched_child_runs_first in /proc/sched_debug\n sched: No need for bootmem special cases\n sched: Revert nohz_ratelimit() for now\n sched: Reduce update_group_power() calls\n sched: Update rq-\u003eclock for nohz balanced cpus\n sched: Fix spelling of sibling\n sched, cpuset: Drop __cpuexit from cpu hotplug callbacks\n sched: Fix the racy usage of thread_group_cputimer() in fastpath_timer_check()\n sched: run_posix_cpu_timers: Don\u0027t check -\u003eexit_state, use lock_task_sighand()\n sched: thread_group_cputime: Simplify, document the \"alive\" check\n sched: Remove the obsolete exit_state/signal hacks\n sched: task_tick_rt: Remove the obsolete -\u003esignal !\u003d NULL check\n sched: __sched_setscheduler: Read the RLIMIT_RTPRIO value lockless\n sched: Fix comments to make them DocBook happy\n sched: Fix fix_small_capacity\n powerpc: Exclude arch_sd_sibiling_asym_packing() on UP\n powerpc: Enable asymmetric SMT scheduling on POWER7\n sched: Add asymmetric group packing option for sibling domain\n sched: Fix capacity calculations for SMT4\n sched: Change nohz idle load balancing logic to push model\n ...\n" }, { "commit": "4aed2fd8e3181fea7c09ba79cf64e7e3f4413bf9", "tree": "1f69733e5daab4915a76a41de0e4d1dc61e12cfb", "parents": [ "3a3527b6461b1298cc53ce72f336346739297ac8", "fc9ea5a1e53ee54f681e226d735008e2a6f8f470" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Aug 06 09:30:52 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Aug 06 09:30:52 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: (162 commits)\n tracing/kprobes: unregister_trace_probe needs to be called under mutex\n perf: expose event__process function\n perf events: Fix mmap offset determination\n perf, powerpc: fsl_emb: Restore setting perf_sample_data.period\n perf, powerpc: Convert the FSL driver to use local64_t\n perf tools: Don\u0027t keep unreferenced maps when unmaps are detected\n perf session: Invalidate last_match when removing threads from rb_tree\n perf session: Free the ref_reloc_sym memory at the right place\n x86,mmiotrace: Add support for tracing STOS instruction\n perf, sched migration: Librarize task states and event headers helpers\n perf, sched migration: Librarize the GUI class\n perf, sched migration: Make the GUI class client agnostic\n perf, sched migration: Make it vertically scrollable\n perf, sched migration: Parameterize cpu height and spacing\n perf, sched migration: Fix key bindings\n perf, sched migration: Ignore unhandled task states\n perf, sched migration: Handle ignored migrate out events\n perf: New migration tool overview\n tracing: Drop cpparg() macro\n perf: Use tracepoint_synchronize_unregister() to flush any pending tracepoint call\n ...\n\nFix up trivial conflicts in Makefile and drivers/cpufreq/cpufreq.c\n" }, { "commit": "19063c776fe745fab11216422cf56489ee83b452", "tree": "a08994bd7badecc81ac04f4b6c4732986dea8588", "parents": [ "955b61e597984745fb7d34c75708f6503b6aaeab" ], "author": { "name": "Jason Wessel", "email": "jason.wessel@windriver.com", "time": "Thu Aug 05 09:22:23 2010 -0500" }, "committer": { "name": "Jason Wessel", "email": "jason.wessel@windriver.com", "time": "Thu Aug 05 09:22:23 2010 -0500" }, "message": "ftrace,kdb: Allow dumping a specific cpu\u0027s buffer with ftdump\n\nIn systems with more than one processor it is desirable to look at the\nper cpu trace buffers.\n\nSigned-off-by: Jason Wessel \u003cjason.wessel@windriver.com\u003e\nAcked-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCC: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "955b61e597984745fb7d34c75708f6503b6aaeab", "tree": "c928ca54a8231b0432e729d8b675e473a5db9104", "parents": [ "3f0a55e3579a500ce9f5cdab70a5741f99769118" ], "author": { "name": "Jason Wessel", "email": "jason.wessel@windriver.com", "time": "Thu Aug 05 09:22:23 2010 -0500" }, "committer": { "name": "Jason Wessel", "email": "jason.wessel@windriver.com", "time": "Thu Aug 05 09:22:23 2010 -0500" }, "message": "ftrace,kdb: Extend kdb to be able to dump the ftrace buffer\n\nAdd in a helper function to allow the kdb shell to dump the ftrace\nbuffer.\n\nModify trace.c to expose the capability to iterate over the ftrace\nbuffer in a read only capacity.\n\nSigned-off-by: Jason Wessel \u003cjason.wessel@windriver.com\u003e\nAcked-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCC: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "9da79ab83ee33ddc1fdd0858fd3d70925a1bde99", "tree": "116f9d3c256a91ede964ebbfd3779949cc5953d4", "parents": [ "b83f920e179101a54721e5ab1d6c3edfb9d4bcbb" ], "author": { "name": "Srikar Dronamraju", "email": "srikar@linux.vnet.ibm.com", "time": "Wed Jun 30 14:15:48 2010 +0530" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Wed Aug 04 12:41:23 2010 -0300" }, "message": "tracing/kprobes: unregister_trace_probe needs to be called under mutex\n\nComment in unregister_trace_probe() says probe_lock will be held when it\ngets called. However there is a case where it might called without the\nprobe_lock being held. Also since we are traversing the probe_list and\ndeleting an element from the probe_list, probe_lock should be held.\n\nThis was first pointed in uprobes traceevent review by Frederic\nWeisbecker here. (http://lkml.org/lkml/2010/5/12/106)\n\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Masami Hiramatsu \u003cmasami.hiramatsu.pt@hitachi.com\u003e\nAcked-by: Masami Hiramatsu \u003cmasami.hiramatsu.pt@hitachi.com\u003e\nAcked-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c20100630084548.GA10325@linux.vnet.ibm.com\u003e\nSigned-off-by: Srikar Dronamraju \u003csrikar@linux.vnet.ibm.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "669336e4cf3e1cb95800f3f5924558a76d723c21", "tree": "b2254ef3ca3dfa2cf102bb992275138e694a67bd", "parents": [ "3a01736e70a7d629140695ba46a901266b4460cc" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Jul 20 17:29:54 2010 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Mon Aug 02 01:30:56 2010 +0200" }, "message": "perf: Use tracepoint_synchronize_unregister() to flush any pending tracepoint call\n\nWe use synchronize_sched() to ensure a tracepoint won\u0027t be called\nwhile/after we release the perf buffers it references.\n\nBut the tracepoint API has its own API for that:\ntracepoint_synchronize_unregister(). Use it instead as it\u0027s\nself-explanatory and eases maintainance.\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: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\n" }, { "commit": "592913ecb87a9e06f98ddb55b298f1a66bf94c6b", "tree": "0f63f5535fe517faf418e0f7e69800fcf1e4d8db", "parents": [ "ce3bf7ab22527183634a76512d9854a38615e4d5" ], "author": { "name": "John Stultz", "email": "johnstul@us.ibm.com", "time": "Tue Jul 13 17:56:20 2010 -0700" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Jul 27 12:40:54 2010 +0200" }, "message": "time: Kill off CONFIG_GENERIC_TIME\n\nNow that all arches have been converted over to use generic time via\nclocksources or arch_gettimeoffset(), we can remove the GENERIC_TIME\nconfig option and simplify the generic code.\n\nSigned-off-by: John Stultz \u003cjohnstul@us.ibm.com\u003e\nLKML-Reference: \u003c1279068988-21864-4-git-send-email-johnstul@us.ibm.com\u003e\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\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": "24a461d537f49f9da6533d83100999ea08c6c755", "tree": "b7aa6258df988a64d802eff0b15e92c394742a2e", "parents": [ "a484e54fae891703cbe1c9ec1b536605f11f5482" ], "author": { "name": "Dan Carpenter", "email": "error27@gmail.com", "time": "Sat Jul 10 12:06:44 2010 +0200" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Thu Jul 22 14:56:41 2010 -0400" }, "message": "trace: strlen() return doesn\u0027t account for the NULL\n\nWe need to add one to the strlen() return because of the NULL\ncharacter. The type-\u003ename here generally comes from the kernel and I\ndon\u0027t think any of them come close to being MAX_TRACER_SIZE (100)\ncharacters long so this is basically a cleanup.\n\nSigned-off-by: Dan Carpenter \u003cerror27@gmail.com\u003e\nLKML-Reference: \u003c20100710100644.GV19184@bicker\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "dca45ad8af54963c005393a484ad117b8ba6150f", "tree": "7c9a6966283a6bb12b54e5680a67d203be292930", "parents": [ "68c38fc3cb4e5a60f502ee9c45f3dfe70e5165ad", "cd5b8f8755a89a57fc8c408d284b8b613f090345" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jul 21 21:45:02 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jul 21 21:45:08 2010 +0200" }, "message": "Merge branch \u0027linus\u0027 into sched/core\n\nMerge reason: Move from the -rc3 to the almost-rc6 base.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ef710e100c1068d3dd5774d2b34c5485219e06ce", "tree": "ed295053a31de472d4ed4338679c00ac8e8437c7", "parents": [ "bc289ae98b75d93228d24f521ef02a076e506e94" ], "author": { "name": "KOSAKI Motohiro", "email": "kosaki.motohiro@jp.fujitsu.com", "time": "Thu Jul 01 14:34:35 2010 +0900" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Jul 21 10:20:17 2010 -0400" }, "message": "tracing: Shrink max latency ringbuffer if unnecessary\n\nDocumentation/trace/ftrace.txt says\n\n buffer_size_kb:\n\n This sets or displays the number of kilobytes each CPU\n buffer can hold. The tracer buffers are the same size\n for each CPU. The displayed number is the size of the\n CPU buffer and not total size of all buffers. The\n trace buffers are allocated in pages (blocks of memory\n that the kernel uses for allocation, usually 4 KB in size).\n If the last page allocated has room for more bytes\n than requested, the rest of the page will be used,\n making the actual allocation bigger than requested.\n ( Note, the size may not be a multiple of the page size\n due to buffer management overhead. )\n\n This can only be updated when the current_tracer\n is set to \"nop\".\n\nBut it\u0027s incorrect. currently total memory consumption is\n\u0027buffer_size_kb x CPUs x 2\u0027.\n\nWhy two times difference is there? because ftrace implicitly allocate\nthe buffer for max latency too.\n\nThat makes sad result when admin want to use large buffer. (If admin\nwant full logging and makes detail analysis). example, If admin\nhave 24 CPUs machine and write 200MB to buffer_size_kb, the system\nconsume ~10GB memory (200MB x 24 x 2). umm.. 5GB memory waste is\nusually unacceptable.\n\nFortunatelly, almost all users don\u0027t use max latency feature.\nThe max latency buffer can be disabled easily.\n\nThis patch shrink buffer size of the max latency buffer if\nunnecessary.\n\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nLKML-Reference: \u003c20100701104554.DA2D.A69D9226@jp.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.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": "985023dee6e212493831431ba2e3ce8918f001b2", "tree": "7b8afee8eed100ff3ab1069504598445e644fe05", "parents": [ "e870e9a1240bcef1157ffaaf71dac63362e71904" ], "author": { "name": "Richard Kennedy", "email": "richard@rsk.demon.co.uk", "time": "Thu Mar 25 11:27:36 2010 +0000" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Tue Jul 20 21:58:44 2010 -0400" }, "message": "trace: Reorder struct ring_buffer_per_cpu to remove padding on 64bit\n\nReorder structure to remove 8 bytes of padding on 64 bit builds.\nThis shrinks the size to 128 bytes so allowing allocation from a smaller\nslab \u0026 needed one fewer cache lines.\n\nSigned-off-by: Richard Kennedy \u003crichard@rsk.demon.co.uk\u003e\nLKML-Reference: \u003c1269516456.2054.8.camel@localhost\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "e870e9a1240bcef1157ffaaf71dac63362e71904", "tree": "b8f57a68ff45b35dab8cdfa474e17622d275bdc6", "parents": [ "cc5edb0eb9ce892b530e34a5d110382483587942" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Fri Jul 02 11:07:32 2010 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Tue Jul 20 21:52:33 2010 -0400" }, "message": "tracing: Allow to disable cmdline recording\n\nWe found that even enabling a single trace event that will rarely be\ntriggered can add big overhead to context switch.\n\n(lmbench context switch test)\n -------------------------------------------------\n 2p/0K 2p/16K 2p/64K 8p/16K 8p/64K 16p/16K 16p/64K\n ctxsw ctxsw ctxsw ctxsw ctxsw ctxsw ctxsw\n------ ------ ------ ------ ------ ------- -------\n 2.19 2.3 2.21 2.56 2.13 2.54 2.07\n 2.39 2.51 2.35 2.75 2.27 2.81 2.24\n\nThe overhead is 6% ~ 11%.\n\nIt\u0027s because when a trace event is enabled 3 tracepoints (sched_switch,\nsched_wakeup, sched_wakeup_new) will be activated to map pid to cmdname.\n\nWe\u0027d like to avoid this overhead, so add a trace option \u0027(no)record-cmd\u0027\nto allow to disable cmdline recording.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4C2D57F4.2050204@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "b444786f1a797a7f84e2561346a670649f9c7b3c", "tree": "42260d0930addbe623d952fff75e0fba7f63d6c6", "parents": [ "eb7beb5c09af75494234ea6acd09d0a647cf7338" ], "author": { "name": "Arnd Bergmann", "email": "arnd@arndb.de", "time": "Wed Jul 07 23:40:11 2010 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Jul 20 14:31:24 2010 +0200" }, "message": "tracing: Use generic_file_llseek for debugfs\n\nThe default for llseek will change to no_llseek,\nso the tracing debugfs files need to add explicit\n.llseek assignments. Since we\u0027re dealing with regular\nfiles from a VFS perspective, use generic_file_llseek.\n\nSigned-off-by: Arnd Bergmann \u003carnd@arndb.de\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: John Kacur \u003cjkacur@redhat.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c1278538820-1392-10-git-send-email-arnd@arndb.de\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "eb7beb5c09af75494234ea6acd09d0a647cf7338", "tree": "ab76cb3a6c1f1ea9befbbc72d0f997c03423dd57", "parents": [ "f376bf5ffbad863d4bc3b2586b7e34cdf756ad17" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Fri Jul 16 00:50:03 2010 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Jul 20 14:31:07 2010 +0200" }, "message": "tracing: Remove special traces\n\nSpecial traces type was only used by sysprof. Lets remove it now\nthat sysprof ftrace plugin has been dropped.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nAcked-by: Soeren Sandmann \u003csandmann@daimi.au.dk\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\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": "f376bf5ffbad863d4bc3b2586b7e34cdf756ad17", "tree": "712a78b2b455995ceb4e12b5ae02df76dc07f01e", "parents": [ "cc5edb0eb9ce892b530e34a5d110382483587942" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Fri Jul 16 00:26:26 2010 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Jul 20 14:29:46 2010 +0200" }, "message": "tracing: Remove sysprof ftrace plugin\n\nThe sysprof ftrace plugin doesn\u0027t seem to be seriously used\nsomewhere. There is a branch in the sysprof tree that makes\nan interface to it, but the real sysprof tool uses either its\nown module or perf events.\n\nDrop the sysprof ftrace plugin then, as it\u0027s mostly useless.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nAcked-by: Soeren Sandmann \u003csandmann@daimi.au.dk\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\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": "5d550467b9770042e9699690907babc32104a8d4", "tree": "eda923f5976f5d6f881719998207696147cffa41", "parents": [ "86a8c63f75a4582c44465e2bf71bc2df175cee77" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Thu Jul 15 23:27:35 2010 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Thu Jul 15 23:59:33 2010 +0200" }, "message": "tracing: Remove ksym tracer\n\nThe ksym (breakpoint) ftrace plugin has been superseded by perf\ntools that are much more poweful to use the cpu breakpoints.\nThis tracer doesn\u0027t bring more feature. It has been deprecated\nfor a while now, lets remove it.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Prasad \u003cprasad@linux.vnet.ibm.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "5e3d20a68f63fc5a310687d81956c3b96e488b84", "tree": "576da563442772fe7a492589c1e08c422ff02b1c", "parents": [ "815c4163b6c8ebf8152f42b0a5fd015cfdcedc78" ], "author": { "name": "Arnd Bergmann", "email": "arnd@arndb.de", "time": "Sun Jul 04 00:02:26 2010 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Fri Jul 09 15:40:32 2010 +0200" }, "message": "init: Remove the BKL from startup code\n\nI have shown by code review that no driver takes\nthe BKL at init time any more, so whatever the\ninit code was locking against is no longer there\nand it is now safe to remove the BKL there.\n\nSigned-off-by: Arnd Bergmann \u003carnd@arndb.de\u003e\nAcked-by: Steven Rostedt \u003crostedt@goodmis\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "e09c8614b32915c16f68e039ac7040e602d73e35", "tree": "725c768b1d2fbd569e447e7d4a2044dc0aa7a1d5", "parents": [ "167a58f10d9cd1bdf6a911aa1eecbdff596de156" ], "author": { "name": "Masami Hiramatsu", "email": "mhiramat@redhat.com", "time": "Mon Jul 05 15:54:45 2010 -0300" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Mon Jul 05 15:54:45 2010 -0300" }, "message": "tracing/kprobes: Support \"string\" type\n\nSupport string type tracing and printing in kprobe-tracer.\n\nThis allows user to trace string data in kernel including __user data. Note\nthat sometimes __user data may not be accessed if it is paged-out (sorry, but\nkprobes operation should be done in atomic, we can not wait for page-in).\n\nCommiter note: Fixed up conflicts with b7e2ece.\n\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c20100519195724.2885.18788.stgit@localhost6.localdomain6\u003e\nSigned-off-by: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\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": "d62f85d1e22e537192ce494c89540e1ac0d8bfc7", "tree": "6ea77c37dbdc9d0b82ca93ace71ffe5f44f234d3", "parents": [ "67ead0a6ceb001b4cb891d782e440f0e79493ba2" ], "author": { "name": "Chase Douglas", "email": "chase.douglas@canonical.com", "time": "Tue Jun 15 12:29:15 2010 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Mon Jun 28 21:11:39 2010 -0400" }, "message": "tracing/function-graph: Use correct string size for snprintf\n\nThe nsecs_str string is a local variable defined as:\n\nchar nsecs_str[5];\n\nIt is possible for the snprintf call to use a size value larger than the\nsize of the string. This should not cause a buffer overrun as it is\nwritten now due to the value for the string format \"%03lu\" can not be\nlarger than 1000. However, this change makes it correct. By making the\nsize correct we guard against potential future changes that could actually\ncause a buffer overrun.\n\nSigned-off-by: Chase Douglas \u003cchase.douglas@canonical.com\u003e\nLKML-Reference: \u003c1276619355-18116-1-git-send-email-chase.douglas@canonical.com\u003e\n\n[ added \u0027UL\u0027 to number 8 to fix gcc warning comparing it to sizeof() ]\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "67ead0a6ceb001b4cb891d782e440f0e79493ba2", "tree": "bd2c13961ef3a5769feebdcb04ff751cb1b37648", "parents": [ "ffb9f99528574ab9a55d4c8fd22e9d3ca49efa86" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Mon May 24 16:25:13 2010 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Mon Jun 28 17:12:55 2010 -0400" }, "message": "tracing: Remove open-coded __trace_add_event_call()\n\nLet trace_module_add_events() and event_trace_init() call\n__trace_add_event_call().\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4BFA37E9.1020106@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "ffb9f99528574ab9a55d4c8fd22e9d3ca49efa86", "tree": "3b5d2a5e0c33b214bd7c53d1733fe3771a68d4c7", "parents": [ "c9d932cf8a1c608b676021aef0189376ba6ef151" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Mon May 24 16:24:52 2010 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Mon Jun 28 17:12:53 2010 -0400" }, "message": "tracing: Remove redundant raw_init callbacks\n\nraw_init callback is optional.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4BFA37D4.7070500@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "c9d932cf8a1c608b676021aef0189376ba6ef151", "tree": "b12777124aad80e266c937dbad33be7706aafe7f", "parents": [ "210f766915207636acccba7bec42248bfe882998" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Mon May 24 16:24:28 2010 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Mon Jun 28 17:12:52 2010 -0400" }, "message": "tracing: Remove test of NULL define_fields callback\n\nEvery event (or event class) has it\u0027s define_fields callback,\nso the test is redundant.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4BFA37BC.8080707@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "8728fe501ed562c1b46dde3c195eadec77bca033", "tree": "c911b4a6af85817ba6bdf3342cbae4838c14b1bb", "parents": [ "c9642c49aae1272d7c24008a40ae614470b957a6" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Mon May 24 16:22:49 2010 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Mon Jun 28 17:12:46 2010 -0400" }, "message": "tracing: Don\u0027t allocate common fields for every trace events\n\nEvery event has the same common fields, so it\u0027s a big waste of\nmemory to have a copy of those fields for every event.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4BFA3759.30105@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": "f384c954c9fe3d3c6fce5ae66b67f2ddd947d098", "tree": "a38541b8083a2304435e9a153d408bd7cd44116e", "parents": [ "9a15a07fe2175dc25cd928a354b3839f562ac8cc", "5904b3b81d25166e5e39b9727645bb47937618e3" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Jun 28 22:33:13 2010 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Jun 28 22:33:24 2010 +0200" }, "message": "Merge branch \u0027linus\u0027 into perf/core\n\nReason: Further changes conflict with upstream fixes\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "a8fb2608053547bc3152ea61a5ec7cdfce5d942c", "tree": "08f5fd61dd3fce05a2472f457c48ec249966b372", "parents": [ "d11007703c31db534674ebeeb9eb047bbbe758bd" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Thu Jun 10 14:53:16 2010 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Thu Jun 10 20:56:54 2010 -0400" }, "message": "perf/tracing: Fix regression of perf losing kprobe events\n\nWith the addition of the code to shrink the kernel tracepoint\ninfrastructure, we lost kprobes being traced by perf. The reason\nis that I tested if the \"tp_event-\u003eclass-\u003eperf_probe\" existed before\nenabling it. This prevents \"ftrace only\" events (like the function\ntrace events) from being enabled by perf.\n\nUnfortunately, kprobe events do not use perf_probe. This causes\nkprobes to be missed by perf. To fix this, we add the test to\nsee if \"tp_event-\u003eclass-\u003ereg\" exists as well as perf_probe.\n\nNormal trace events have only \"perf_probe\" but no \"reg\" function,\nand kprobes and syscalls have the \"reg\" but no \"perf_probe\".\nThe ftrace unique events do not have either, so this is a valid\ntest. If a kprobe or syscall is not to be probed by perf, the\n\"reg\" function is called anyway, and will return a failure and\nprevent perf from probing it.\n\nReported-by: Srikar Dronamraju \u003csrikar@linux.vnet.ibm.com\u003e\nTested-by: Srikar Dronamraju \u003csrikar@linux.vnet.ibm.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\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": "039ca4e74a1cf60bd7487324a564ecf5c981f254", "tree": "61c6fa8409961d2e22ef9d04ac54442734ebd41a", "parents": [ "30dbb20e68e6f7df974b77d2350ebad5eb6f6c9e" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Wed May 26 17:22:17 2010 +0800" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Jun 09 17:31:22 2010 +0200" }, "message": "tracing: Remove kmemtrace ftrace plugin\n\nWe have been resisting new ftrace plugins and removing existing\nones, and kmemtrace has been superseded by kmem trace events\nand perf-kmem, so we remove it.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nAcked-by: Eduard - Gabriel Munteanu \u003ceduard.munteanu@linux360.ro\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\n[ remove kmemtrace from the makefile, handle slob too ]\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "c676329abb2b8359d9a5d734dec0c81779823fd6", "tree": "b6c33715176221a87100228399c2a6f5049e44ea", "parents": [ "95ae3c59fa8ad616c73745e21154b5af0fb10168" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue May 25 10:48:51 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jun 09 10:34:49 2010 +0200" }, "message": "sched_clock: Add local_clock() API and improve documentation\n\nFor people who otherwise get to write: cpu_clock(smp_processor_id()),\nthere is now: local_clock().\n\nAlso, as per suggestion from Andrew, provide some documentation on\nthe various clock interfaces, and minimize the unsigned long long vs\nu64 mess.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nCc: Jens Axboe \u003cjaxboe@fusionio.com\u003e\nLKML-Reference: \u003c1275052414.1645.52.camel@laptop\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\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": "c9cf4dbb4d9ca715d8fedf13301a53296429abc6", "tree": "66f0bb55d89a41bbe8ac76f8dee418e84e255d2d", "parents": [ "9dda696f0de87a2e5cfabb147e28c76b7d3c6846" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed May 19 21:35:17 2010 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Jun 08 23:29:52 2010 +0200" }, "message": "x86: Unify dumpstack.h and stacktrace.h\n\narch/x86/include/asm/stacktrace.h and arch/x86/kernel/dumpstack.h\ndeclare headers of objects that deal with the same topic.\nActually most of the files that include stacktrace.h also include\ndumpstack.h\n\nAlthough dumpstack.h seems more reserved for internals of stack\ntraces, those are quite often needed to define specialized stack\ntrace operations. And perf event arch headers are going to need\naccess to such low level operations anyway. So don\u0027t continue to\nbother with dumpstack.h as it\u0027s not anymore about isolated deep\ninternals.\n\nv2: fix struct stack_frame definition conflict in sysprof\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: H. Peter Anvin \u003chpa@zytor.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Soeren Sandmann \u003csandmann@daimi.au.dk\u003e\n" }, { "commit": "6113e45f831616de98c54a005260223b21bcb6b9", "tree": "0d56dbfae392f89b33c2ae6a36a5cc1ea1c1c988", "parents": [ "84bb671dc46d77d665d2b5e74539e81b2129bb3e", "5168ae50a66e3ff7184c2b16d661bd6d70367e50" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Jun 08 19:34:40 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Jun 08 19:34:40 2010 +0200" }, "message": "Merge branch \u0027tip/perf/core-3\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into perf/core\n" }, { "commit": "5168ae50a66e3ff7184c2b16d661bd6d70367e50", "tree": "2fb21fc3bd346e4f589605d940dfb1bacac30bf5", "parents": [ "d1f74e20b5b064a130cd0743a256c2d3cfe84010" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Thu Jun 03 09:36:50 2010 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Thu Jun 03 19:32:38 2010 -0400" }, "message": "tracing: Remove ftrace_preempt_disable/enable\n\nThe ftrace_preempt_disable/enable functions were to address a\nrecursive race caused by the function tracer. The function tracer\ntraces all functions which makes it easily susceptible to recursion.\nOne area was preempt_enable(). This would call the scheduler and\nthe schedulre would call the function tracer and loop.\n(So was it thought).\n\nThe ftrace_preempt_disable/enable was made to protect against recursion\ninside the scheduler by storing the NEED_RESCHED flag. If it was\nset before the ftrace_preempt_disable() it would not call schedule\non ftrace_preempt_enable(), thinking that if it was set before then\nit would have already scheduled unless it was already in the scheduler.\n\nThis worked fine except in the case of SMP, where another task would set\nthe NEED_RESCHED flag for a task on another CPU, and then kick off an\nIPI to trigger it. This could cause the NEED_RESCHED to be saved at\nftrace_preempt_disable() but the IPI to arrive in the the preempt\ndisabled section. The ftrace_preempt_enable() would not call the scheduler\nbecause the flag was already set before entring the section.\n\nThis bug would cause a missed preemption check and cause lower latencies.\n\nInvestigating further, I found that the recusion caused by the function\ntracer was not due to schedule(), but due to preempt_schedule(). Now\nthat preempt_schedule is completely annotated with notrace, the recusion\nno longer is an issue.\n\nReported-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "546cf44a1b507c1cbb5cf42bbe6169780567f36f", "tree": "ab0373b82198dcae5870fa2af1916102894069f1", "parents": [ "74048f895fa8cbf8119b4999f1f44881a825f954" ], "author": { "name": "Randy Dunlap", "email": "randy.dunlap@oracle.com", "time": "Sat May 29 11:45:07 2010 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon May 31 09:58:20 2010 +0200" }, "message": "blktrace: Fix new kernel-doc warnings\n\nFix blktrace.c kernel-doc warnings:\n Warning(kernel/trace/blktrace.c:858): No description found for parameter \u0027ignore\u0027\n Warning(kernel/trace/blktrace.c:890): No description found for parameter \u0027ignore\u0027\n\nSigned-off-by: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nCc: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c20100529114507.c466fc1e.randy.dunlap@oracle.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "2e97942fe57864588774f173cf4cd7bb68968b76", "tree": "bf0eeda8c13a6e851ad755b7114ceaa82c51fd97", "parents": [ "3771f0771154675d4a0ca780be2411f3cc357208" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri May 21 16:22:33 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon May 31 08:46:09 2010 +0200" }, "message": "perf_events, trace: Fix perf_trace_destroy(), mutex went missing\n\nSteve spotted I forgot to do the destroy under event_mutex.\n\nReported-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1274451913.1674.1707.camel@laptop\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": "bc7d352c5e76c74c628a39b99777a1bdddde5e81", "tree": "3cc0a80defb54d284e2a9a1e69b1224064921775", "parents": [ "b3f2f6cd1ff935ecac9a5346904b899d7af689fe", "92af1abde4f2d74c9e5f7b670a1971779ed0b051" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun May 30 12:35:01 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun May 30 12:35:01 2010 -0700" }, "message": "Merge branch \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n perf tui: Fix last use_browser problem related to .perfconfig\n perf symbols: Add the build id cache to the vmlinux path\n perf tui: Reset use_browser if stdout is not a tty\n ring-buffer: Move zeroing out excess in page to ring buffer code\n ring-buffer: Reset \"real_end\" when page is filled\n" }, { "commit": "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": "2711ca237a084286ea1c2dcf82ab2aadab23a00d", "tree": "a795fa0e31e8557befd803153a33827b1d0c8764", "parents": [ "b3230c8b44da5838cf396942d5c1ab19f8e8f720" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri May 21 13:32:26 2010 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Tue May 25 11:57:26 2010 -0400" }, "message": "ring-buffer: Move zeroing out excess in page to ring buffer code\n\nCurrently the trace splice code zeros out the excess bytes in the page before\nsending it off to userspace.\n\nThis is to make sure userspace is not getting anything it should not be\nwhen reading the pages, because the excess data was never initialized\nto zero before writing (for perfomance reasons).\n\nBut the splice code has no business in doing this work, it should be\ndone by the ring buffer. With the latest changes for recording lost\nevents, the splice code gets it wrong anyway.\n\nMove the zeroing out of excess bytes into the ring buffer code.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "b3230c8b44da5838cf396942d5c1ab19f8e8f720", "tree": "21a212bb598da40cdb936f7b4492d9b05895d4fc", "parents": [ "49c177461bfbedeccbab22bf3905db2f9da7f1c3" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri May 21 11:55:21 2010 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Tue May 25 11:57:24 2010 -0400" }, "message": "ring-buffer: Reset \"real_end\" when page is filled\n\nThe code to store the \"lost events\" requires knowing the real end\nof the page. Since the \u0027commit\u0027 includes the padding at the end of\na page a \"real_end\" variable was used to keep track of the end not\nincluding the padding.\n\nIf events were lost, the reader can place the count of events in\nthe padded area if there is enough room.\n\nThe bug this patch fixes is that when we fill the page we do not\nreset the real_end variable, and if the writer had wrapped a few\ntimes, the real_end would be incorrect.\n\nThis patch simply resets the real_end if the page was filled.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "87f44bbc246c5244c76a701f8eefba7788bce64a", "tree": "1370af780bf3bae9e025766f5bbfa9418bb8b68b", "parents": [ "d67f088e084755bdceb4f15bc6e05e309db1eea7" ], "author": { "name": "Peter Zijlstra", "email": "peterz@infradead.org", "time": "Tue May 25 11:02:55 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue May 25 11:28:49 2010 +0200" }, "message": "perf, trace: Fix !x86 build bug\n\nPatch b7e2ecef92 (perf, trace: Optimize tracepoints by removing\nIRQ-disable from perf/tracepoint interaction) made the\nunfortunate mistake of assuming the world is x86 only, correct\nthis.\n\nThe problem was that perf_fetch_caller_regs() did\nlocal_save_flags() into regs-\u003eflags, and I re-used that to\nremove another local_save_flags(), forgetting !x86 doesn\u0027t have\nregs-\u003eflags.\n\nDo the reverse, remove the local_save_flags() from\nperf_fetch_caller_regs() and let the ftrace site do the\nlocal_save_flags() instead.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: acme@redhat.com\nCc: efault@gmx.de\nCc: fweisbec@gmail.com\nCc: rostedt@goodmis.org\nLKML-Reference: \u003c1274778175.5882.623.camel@twins\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ee9a3607fb03e804ddf624544105f4e34260c380", "tree": "ce41b6e0fa10982a306f6c142a92dbf3c9961284", "parents": [ "b492e95be0ae672922f4734acf3f5d35c30be948", "d515e86e639890b33a09390d062b0831664f04a2" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri May 21 21:27:26 2010 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri May 21 21:27:26 2010 +0200" }, "message": "Merge branch \u0027master\u0027 into for-2.6.35\n\nConflicts:\n\tfs/ext3/fsync.c\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "35f3d14dbbc58447c61e38a162ea10add6b31dc7", "tree": "3e03cd540b7dcdac82195c4e76862c0ce6daaaf0", "parents": [ "3d42b3612891baecf709d93f28655a6882a65d41" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu May 20 10:43:18 2010 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri May 21 21:12:40 2010 +0200" }, "message": "pipe: add support for shrinking and growing pipes\n\nThis patch adds F_GETPIPE_SZ and F_SETPIPE_SZ fcntl() actions for\ngrowing and shrinking the size of a pipe and adjusts pipe.c and splice.c\n(and relay and network splice) usage to work with these larger (or smaller)\npipes.\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "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": "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": "e1f7992e015ae1373d66c8068d0a45e4111a0aed", "tree": "8d4ce98a0039a5ab13e72f1c1862a595be1d9987", "parents": [ "553552ce1796c32cf4e3d4f45cd5b537de91dd1d" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Mon May 10 11:23:00 2010 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri May 14 14:33:24 2010 -0400" }, "message": "tracing: Fix function declarations if !CONFIG_STACKTRACE\n\nftrace_trace_stack() and frace_trace_userstacke() take a\nstruct ring_buffer argument, not struct trace_array. Commit\ne77405ad(\"tracing: pass around ring buffer instead of tracer\")\nmade this change.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4BE77C14.5010806@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "553552ce1796c32cf4e3d4f45cd5b537de91dd1d", "tree": "a65defc1055bcc3e9f34327d2cc59704e536948b", "parents": [ "32c0edaeaad74a7883e736ae0f3798784cfc2a80" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri Apr 23 11:12:36 2010 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri May 14 14:33:22 2010 -0400" }, "message": "tracing: Combine event filter_active and enable into single flags field\n\nThe filter_active and enable both use an int (4 bytes each) to\nset a single flag. We can save 4 bytes per event by combining the\ntwo into a single integer.\n\n text\t data\t bss\t dec\t hex\tfilename\n4913961\t1088356\t 861512\t6863829\t 68bbd5\tvmlinux.orig\n4894944\t1018052\t 861512\t6774508\t 675eec\tvmlinux.id\n4894871\t1012292\t 861512\t6768675\t 674823\tvmlinux.flags\n\nThis gives us another 5K in savings.\n\nThe modification of both the enable and filter fields are done\nunder the event_mutex, so it is still safe to combine the two.\n\nNote: Although Mathieu gave his Acked-by, he would like it documented\n that the reads of flags are not protected by the mutex. The way the\n code works, these reads will not break anything, but will have a\n residual effect. Since this behavior is the same even before this\n patch, describing this situation is left to another patch, as this\n patch does not change the behavior, but just brought it to Mathieu\u0027s\n attention.\n\nv2: Updated the event trace self test to for 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\nCc: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\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": "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": "d9f599e1e6d019968b35d2dc63074b9e8964fa69", "tree": "6253e19189306cef7952310d6ef62fb6ab675481", "parents": [ "4778e0e8c64f683a71632dba1cff1f85f76f83c4" ], "author": { "name": "Dan Carpenter", "email": "error27@gmail.com", "time": "Sat Mar 20 17:39:11 2010 +0300" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Thu May 06 19:49:52 2010 -0400" }, "message": "perf: Fix check at end of event search\n\nThe original code doesn\u0027t work because \"call\" is never NULL there.\n\nSigned-off-by: Dan Carpenter \u003cerror27@gmail.com\u003e\nLKML-Reference: \u003c20100320143911.GF5331@bicker\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "668eb65f092902eb7dd526af73d4a7f025a94612", "tree": "2ef89525a77f0541bf527dc33325969cf360c4a4", "parents": [ "2e26ca7150a4f2ab3e69471dfc65f131e7dd7a05" ], "author": { "name": "Thiago Farina", "email": "tfransosi@gmail.com", "time": "Sun Jan 24 11:03:50 2010 -0500" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed May 05 12:01:26 2010 -0400" }, "message": "tracing: Fix \"integer as NULL pointer\" warning.\n\nkernel/trace/trace_output.c:256:24: warning: Using plain integer as NULL pointer\n\nSigned-off-by: Thiago Farina \u003ctfransosi@gmail.com\u003e\nLKML-Reference: \u003c1264349038-1766-3-git-send-email-tfransosi@gmail.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "956097912c40a03bf22603a3be73503fd9ea9e44", "tree": "2d73d9dd1fed43cb1eeaa9137fefc72884e62694", "parents": [ "4dbf6bc239c169b032777616806ecc648058f6b2" ], "author": { "name": "Borislav Petkov", "email": "bp@alien8.de", "time": "Sun May 02 08:03:54 2010 +0200" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Tue May 04 12:23:47 2010 -0400" }, "message": "ring-buffer: Wrap open-coded WARN_ONCE\n\nWrap open-coded WARN_ONCE functionality into the equivalent macro.\n\nSigned-off-by: Borislav Petkov \u003cbp@alien8.de\u003e\nLKML-Reference: \u003c20100502060354.GA5281@liondog.tnic\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "feef47d0cb530e8419dfa0b48141b538b89b1b1a", "tree": "ad40b07e8b240eca134770120b5c644ec0062ce2", "parents": [ "f93a20541134fa767e8dc4eb32e956d30b9f6b92" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Fri Apr 23 05:59:55 2010 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sat May 01 04:32:14 2010 +0200" }, "message": "hw-breakpoints: Get the number of available registers on boot dynamically\n\nThe breakpoint generic layer assumes that archs always know in advance\nthe static number of address registers available to host breakpoints\nthrough the HBP_NUM macro.\n\nHowever this is not true for every archs. For example Arm needs to get\nthis information dynamically to handle the compatiblity between\ndifferent versions.\n\nTo solve this, this patch proposes to drop the static HBP_NUM macro\nand let the arch provide the number of available slots through a\nnew hw_breakpoint_slots() function. For archs that have\nCONFIG_HAVE_MIXED_BREAKPOINTS_REGS selected, it will be called once\nas the number of registers fits for instruction and data breakpoints\ntogether.\nFor the others it will be called first to get the number of\ninstruction breakpoint registers and another time to get the\ndata breakpoint registers, the targeted type is given as a\nparameter of hw_breakpoint_slots().\n\nReported-by: Will Deacon \u003cwill.deacon@arm.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nAcked-by: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: Mahesh Salgaonkar \u003cmahesh@linux.vnet.ibm.com\u003e\nCc: K. Prasad \u003cprasad@linux.vnet.ibm.com\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Jason Wessel \u003cjason.wessel@windriver.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\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": "37e44bc50d91df1fe7edcf6f02fe168c6d802e64", "tree": "40058a2b27e94400dc4345ba13b334fb732ae532", "parents": [ "e330b3bcd83199dd63a819d8d12e40f9edae6c77" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue Apr 27 21:04:24 2010 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Tue Apr 27 21:04:24 2010 -0400" }, "message": "tracing: Fix sleep time function profiling\n\nWhen sleep_time is off the function profiler ignores the time that a task\nis scheduled out. When the task is scheduled out a timestamp is taken.\nWhen the task is scheduled back in, the timestamp is compared to the\ncurrent time and the saved calltimes are adjusted accordingly.\n\nBut when stopping the function profiler, the sched switch hook that\ndoes this adjustment was stopped before shutting down the tracer.\nThis allowed some tasks to not get their timestamps set when they\nscheduled out. When the function profiler started again, this would\nskew the times of the scheduler functions.\n\nThis patch moves the stopping of the sched switch to after the function\nprofiler is stopped. It also ignores zero set calltimes, which may\nhappen on start up.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "e330b3bcd83199dd63a819d8d12e40f9edae6c77", "tree": "45d488ed1f112db14ca180af5f4d2d09515a1f09", "parents": [ "07271aa42d13378e67ebd79ea9ca1c4a5e2ad46f" ], "author": { "name": "Chase Douglas", "email": "chase.douglas@canonical.com", "time": "Mon Apr 26 14:02:05 2010 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Tue Apr 27 18:23:15 2010 -0400" }, "message": "tracing: Show sample std dev in function profiling\n\nWhen combined with function graph tracing the ftrace function profiler\nalso prints the average run time of functions. While this gives us some\ngood information, it doesn\u0027t tell us anything about the variance of the\nrun times of the function. This change prints out the s^2 sample\nstandard deviation alongside the average.\n\nThis change adds one entry to the profile record structure. This\nincreases the memory footprint of the function profiler by 1/3 on a\n32-bit system, and by 1/5 on a 64-bit system when function graphing is\nenabled, though the memory is only allocated when the profiler is turned\non. During the profiling, one extra line of code adds the squared\ncalltime to the new record entry, so this should not adversly affect\nperformance.\n\nNote that the square of the sample standard deviation is printed because\nthere is no sqrt implementation for unsigned long long in the kernel.\n\nSigned-off-by: Chase Douglas \u003cchase.douglas@canonical.com\u003e\nLKML-Reference: \u003c1272304925-2436-1-git-send-email-chase.douglas@canonical.com\u003e\n\n[ fixed comment about ns^2 -\u003e us^2 conversion ]\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "a838b2e634405fb89ddbf4fa9412acb33911911f", "tree": "987cb7b9bb5f7558b72760ba18a0979ac19212fd", "parents": [ "72c9ddfd4c5bf54ef03cfdf57026416cb678eeba" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue Apr 27 13:26:58 2010 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Tue Apr 27 13:26:58 2010 -0400" }, "message": "ring-buffer: Make benchmark handle missed events\n\nWith the addition of the \"missed events\" flags that is stored in the\ncommit field of the ring buffer page, the ring_buffer_benchmark\nwas not updated to handle this. If events are missed, then the\nmissed events flag is set in the ring buffer page, the benchmark\nwill count that flag as part of the size of the page and will hit the BUG()\nwhen it tries to read beyond the page.\n\nThe solution is simply to have the ring buffer benchmark mask off\nthe extra bits.\n\nReported-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "72c9ddfd4c5bf54ef03cfdf57026416cb678eeba", "tree": "bd2c2b6b411975a8219d7138ba7699ee5d324e77", "parents": [ "62b915f1060996a8e1f69be50e3b8e9e43b710cb" ], "author": { "name": "David Miller", "email": "davem@davemloft.net", "time": "Tue Apr 20 15:47:11 2010 -0700" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Tue Apr 27 13:06:35 2010 -0400" }, "message": "ring-buffer: Make non-consuming read less expensive with lots of cpus.\n\nWhen performing a non-consuming read, a synchronize_sched() is\nperformed once for every cpu which is actively tracing.\n\nThis is very expensive, and can make it take several seconds to open\nup the \u0027trace\u0027 file with lots of cpus.\n\nOnly one synchronize_sched() call is actually necessary. What is\ndesired is for all cpus to see the disabling state change. So we\ntransform the existing sequence:\n\n\tfor_each_cpu() {\n\t\tring_buffer_read_start();\n\t}\n\nwhere each ring_buffer_start() call performs a synchronize_sched(),\ninto the following:\n\n\tfor_each_cpu() {\n\t\tring_buffer_read_prepare();\n\t}\n\tring_buffer_read_prepare_sync();\n\tfor_each_cpu() {\n\t\tring_buffer_read_start();\n\t}\n\nwherein only the single ring_buffer_read_prepare_sync() call needs to\ndo the synchronize_sched().\n\nThe first phase, via ring_buffer_read_prepare(), allocates the \u0027iter\u0027\nmemory and increments -\u003erecord_disabled.\n\nIn the second phase, ring_buffer_read_prepare_sync() makes sure this\n-\u003erecord_disabled state is visible fully to all cpus.\n\nAnd in the final third phase, the ring_buffer_read_start() calls reset\nthe \u0027iter\u0027 objects allocated in the first phase since we now know that\nnone of the cpus are adding trace entries any more.\n\nThis makes openning the \u0027trace\u0027 file nearly instantaneous on a\nsparc64 Niagara2 box with 128 cpus tracing.\n\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\nLKML-Reference: \u003c20100420.154711.11246950.davem@davemloft.net\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "62b915f1060996a8e1f69be50e3b8e9e43b710cb", "tree": "26741f065b30b67022d680c3bc2afbda319638e1", "parents": [ "d7a8d9e907cc294ec7a4a7046d1886375fbcc82e" ], "author": { "name": "Jiri Olsa", "email": "jolsa@redhat.com", "time": "Fri Apr 02 19:01:22 2010 +0200" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Tue Apr 27 12:36:53 2010 -0400" }, "message": "tracing: Add graph output support for irqsoff tracer\n\nAdd function graph output to irqsoff tracer.\n\nThe graph output is enabled by setting new \u0027display-graph\u0027 trace option.\n\nSigned-off-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nLKML-Reference: \u003c1270227683-14631-4-git-send-email-jolsa@redhat.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "d7a8d9e907cc294ec7a4a7046d1886375fbcc82e", "tree": "5487e297eafdf978a7355ff11f337c98ddf98f74", "parents": [ "9106b69382912ddc403a307b69bf894a6f3004e4" ], "author": { "name": "Jiri Olsa", "email": "jolsa@redhat.com", "time": "Fri Apr 02 19:01:21 2010 +0200" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Mon Apr 26 17:30:18 2010 -0400" }, "message": "tracing: Have graph flags passed in to ouput functions\n\nLet the function graph tracer have custom flags passed to its\noutput functions.\n\nSigned-off-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nLKML-Reference: \u003c1270227683-14631-3-git-send-email-jolsa@redhat.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "9106b69382912ddc403a307b69bf894a6f3004e4", "tree": "b4a08ee1cbdfd8c43544231fa3623c45b1bf9a17", "parents": [ "77a7f2e94e6998e307917fe63fa4b6d5162d44e9" ], "author": { "name": "Jiri Olsa", "email": "jolsa@redhat.com", "time": "Fri Apr 02 19:01:20 2010 +0200" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Mon Apr 26 16:55:08 2010 -0400" }, "message": "tracing: Add ftrace events for graph tracer\n\nAdd ftrace events for graph tracer, so the graph output could be shared\nwith other tracers.\n\nSigned-off-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nLKML-Reference: \u003c1270227683-14631-2-git-send-email-jolsa@redhat.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "cecbca96da387428e220e307a9c945e37e2f4d9e", "tree": "2edefda983658c19a8f2b38ff951a3046597a4f7", "parents": [ "b15c7b1cee119999e9eafcd602d24a595e77adac" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sun Apr 18 19:08:41 2010 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Apr 21 23:11:42 2010 +0200" }, "message": "tracing: Dump either the oops\u0027s cpu source or all cpus buffers\n\nThe ftrace_dump_on_oops kernel parameter, sysctl and sysrq let one\ndump every cpu buffers when an oops or panic happens.\n\nIt\u0027s nice when you have few cpus but it may take ages if have many,\nplus you miss the real origin of the problem in all the cpu traces.\n\nSometimes, all you need is to dump the cpu buffer that triggered the\nopps, most of the time it is our main interest.\n\nThis patch modifies ftrace_dump_on_oops to handle this choice.\n\nThe ftrace_dump_on_oops kernel parameter, when it comes alone, has\nthe same behaviour than before. But ftrace_dump_on_oops\u003dorig_cpu\nwill only dump the buffer of the cpu that oops\u0027ed.\n\nSimilarly, sysctl kernel.ftrace_dump_on_oops\u003d1 and\necho 1 \u003e /proc/sys/kernel/ftrace_dump_on_oops keep their previous\nbehaviour. But setting 2 jumps into cpu origin dump mode.\n\nv2: Fix double setup\nv3: Fix spelling issues reported by Randy Dunlap\nv4: Also update __ftrace_dump in the selftests\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nAcked-by: David S. Miller \u003cdavem@davemloft.net\u003e\nAcked-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\n" }, { "commit": "93ccae7a2227466a0d071fe52c51319f2f34c365", "tree": "ad98a4db74fff834ce79b83f21192713cc3665bc", "parents": [ "df0faf4be02996135bc3a06b4f34360449c78084" ], "author": { "name": "Masami Hiramatsu", "email": "mhiramat@redhat.com", "time": "Mon Apr 12 13:17:08 2010 -0400" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Wed Apr 14 17:26:28 2010 -0300" }, "message": "tracing/kprobes: Support basic types on dynamic events\n\nSupport basic types of integer (u8, u16, u32, u64, s8, s16, s32, s64) in\nkprobe tracer. With this patch, users can specify above basic types on\neach arguments after \u0027:\u0027. If omitted, the argument type is set as\nunsigned long (u32 or u64, arch-dependent).\n\n e.g.\n echo \u0027p account_system_time+0 hardirq_offset\u003d%si:s32\u0027 \u003e kprobe_events\n\n adds a probe recording hardirq_offset in signed-32bits value on the\n entry of account_system_time.\n\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c20100412171708.3790.18599.stgit@localhost6.localdomain6\u003e\nSigned-off-by: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "b15c7b1cee119999e9eafcd602d24a595e77adac", "tree": "48765b70c65e80d62f0ce11a3245b4ef2299b060", "parents": [ "c1ab9cab75098924fa8226a8a371de66977439df", "aa27497c2fb4c7f57706099bd489e683e5cc3e3b" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Apr 14 12:15:23 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Apr 14 12:15:23 2010 +0200" }, "message": "Merge branch \u0027tip/tracing/core\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into tracing/core\n" }, { "commit": "ca7e0c612005937a4a5a75d3fed90459993de65c", "tree": "b574fc0f0189b52ffc87ba20c418228db556faa1", "parents": [ "8141d0050d76e5695011b5ab577ec66fb51a998c", "f5284e7635787224dda1a2bf82a4c56b1c75671f" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Apr 08 13:36:36 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Apr 08 13:37:18 2010 +0200" }, "message": "Merge branch \u0027linus\u0027 into perf/core\n\nSemantic conflict: arch/x86/kernel/cpu/perf_event_intel_ds.c\n\nMerge reason: pick up latest fixes, fix the conflict\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\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": "aa27497c2fb4c7f57706099bd489e683e5cc3e3b", "tree": "66fab7036e68592003548fd753b31d906d38b7ee", "parents": [ "ff0ff84a0767df48d728c36510365344a7e7d582" ], "author": { "name": "Lai Jiangshan", "email": "laijs@cn.fujitsu.com", "time": "Mon Apr 05 17:11:05 2010 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Mon Apr 05 11:01:22 2010 -0400" }, "message": "tracing: Fix uninitialized variable of tracing/trace output\n\nBecause a local variable is not initialized, I got these\nwhen I did \u0027cat tracing/trace\u0027. (not trace_pipe):\n\nCPU:0 [LOST 18446744071579453134 EVENTS]\n ps-3099 [000] 560.770221: lock_acquire: ffff880030865010 \u0026(\u0026dentry-\u003ed_lock)-\u003erlock\nCPU:0 [LOST 18446744071579453134 EVENTS]\n ps-3099 [000] 560.770221: lock_release: ffff880030865010 \u0026(\u0026dentry-\u003ed_lock)-\u003erlock\nCPU:0 [LOST 18446612133255294080 EVENTS]\n ps-3099 [000] 560.770221: lock_acquire: ffff880030865010 \u0026(\u0026dentry-\u003ed_lock)-\u003erlock\nCPU:0 [LOST 18446744071579453134 EVENTS]\n ps-3099 [000] 560.770222: lock_release: ffff880030865010 \u0026(\u0026dentry-\u003ed_lock)-\u003erlock\nCPU:0 [LOST 18446744071579453134 EVENTS]\n ps-3099 [000] 560.770222: lock_release: ffffffff816cfb98 dcache_lock\n\nSee peek_next_entry(), it does not set *lost_events when we \u0027cat tracing/trace\u0027\n\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4BB9A929.2000303@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "336f5899d287f06d8329e208fc14ce50f7ec9698", "tree": "9b762d450d5eb248a6ff8317badb7e223d93ed58", "parents": [ "a4ab2773205e8b94c18625455f85e3b6bb9d7ad6", "db217dece3003df0841bacf9556b5c06aa097dae" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Apr 05 11:37:28 2010 +0900" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Apr 05 11:37:28 2010 +0900" }, "message": "Merge branch \u0027master\u0027 into export-slabh\n" }, { "commit": "8ce42c8b7fdf4fc008a6fc7349beb8f4dd5cb774", "tree": "bc05326ed8ade9137e3ce5fb5b1d439dcdce266f", "parents": [ "0121b0c771f929bb5298554b70843ab46280c298", "6e03bb5ad363fdbe4e1e227cfb78f7978c662e18" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Apr 04 12:13:10 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Apr 04 12:13:10 2010 -0700" }, "message": "Merge branch \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n perf: Always build the powerpc perf_arch_fetch_caller_regs version\n perf: Always build the stub perf_arch_fetch_caller_regs version\n perf, probe-finder: Build fix on Debian\n perf/scripts: Tuple was set from long in both branches in python_process_event()\n perf: Fix \u0027perf sched record\u0027 deadlock\n perf, x86: Fix callgraphs of 32-bit processes on 64-bit kernels\n perf, x86: Fix AMD hotplug \u0026 constraint initialization\n x86: Move notify_cpu_starting() callback to a later stage\n x86,kgdb: Always initialize the hw breakpoint attribute\n perf: Use hot regs with software sched switch/migrate events\n perf: Correctly align perf event tracing buffer\n" }, { "commit": "ec5e61aabeac58670691bd0613388d16697d0d81", "tree": "59838509358f27334874b90756505785cde29b02", "parents": [ "75ec5a245c7763c397f31ec8964d0a46c54a7386", "8bb39f9aa068262732fe44b965d7a6eb5a5a7d67" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Apr 02 19:37:50 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Apr 02 19:38:10 2010 +0200" }, "message": "Merge branch \u0027perf/urgent\u0027 into perf/core\n\nConflicts:\n\tarch/x86/kernel/cpu/perf_event.c\n\nMerge reason: Resolve the conflict, pick up fixes\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" } ], "next": "eb1e79611cc9bfe21978230e3521e77ea2d7874a" }