)]}'
{
  "log": [
    {
      "commit": "339ae5d3c3fc2025e3657637921495fd600027c7",
      "tree": "7749cf0d5c2d4a0cfd9029038d55b94478b9b56c",
      "parents": [
        "76aa81118ddfbb3dc31533030cf3ec329dd067a6"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Fri Apr 17 10:34:30 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Fri Apr 17 18:04:36 2009 +0200"
      },
      "message": "tracing: fix file mode of trace and README\n\ntrace is read-write and README is read-only.\n\n[ Impact: fix /debug/tracing/ file permissions. ]\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nAcked-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c49E7EAB6.4070605@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "9ea21c1ecdb35ecdcac5fd9d95f62a1f6a7ffec0",
      "tree": "c38a7f2f30d145e7d53b24159b99bc4734d291b5",
      "parents": [
        "69abe6a5d18a9394baa325bab8f57748b037c517"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Thu Apr 16 12:15:44 2009 -0400"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Fri Apr 17 17:10:35 2009 +0200"
      },
      "message": "tracing/events: perform function tracing in event selftests\n\nWe can find some bugs in the trace events if we stress the writes as well.\nThe function tracer is a good way to stress the events.\n\n[ Impact: extend scope of event tracer self-tests ]\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c20090416161746.604786131@goodmis.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "69abe6a5d18a9394baa325bab8f57748b037c517",
      "tree": "4432c60f73d14af510ab13b9b474e174fd2454c5",
      "parents": [
        "d1b182a8d49ed6416325b4e0a1cb0f17cd4e702a"
      ],
      "author": {
        "name": "Avadh Patel",
        "email": "avadh4all@gmail.com",
        "time": "Fri Apr 10 16:04:48 2009 -0400"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Fri Apr 17 17:04:12 2009 +0200"
      },
      "message": "tracing: add saved_cmdlines file to show cached task comms\n\nExport the cached task comms to userspace. This allows user apps to translate\nthe pids from a trace into their respective task command lines.\n\n[ Impact: let userspace apps reading binary buffer know comm\u0027s of pids ]\n\nSigned-off-by: Avadh Patel \u003cavadh4all@gmail.com\u003e\n[ added error checking and use of buf pointer to index file_buf ]\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n"
    },
    {
      "commit": "d1b182a8d49ed6416325b4e0a1cb0f17cd4e702a",
      "tree": "f482bfba39828503f32ed994829d2d3cd6b81bfe",
      "parents": [
        "e6187007d6c365b551c69ea3df46f06fd1c8bd19"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Wed Apr 15 16:53:47 2009 -0400"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Fri Apr 17 17:03:28 2009 +0200"
      },
      "message": "tracing/events/ring-buffer: expose format of ring buffer headers to users\n\nCurrently, every thing needed to read the binary output from the\nring buffers is available, with the exception of the way the ring\nbuffers handles itself internally.\n\nThis patch creates two special files in the debugfs/tracing/events\ndirectory:\n\n # cat /debug/tracing/events/header_page\n        field: u64 timestamp;   offset:0;       size:8;\n        field: local_t commit;  offset:8;       size:8;\n        field: char data;       offset:16;      size:4080;\n\n # cat /debug/tracing/events/header_event\n        type        :    2 bits\n        len         :    3 bits\n        time_delta  :   27 bits\n        array       :   32 bits\n\n        padding     : type \u003d\u003d 0\n        time_extend : type \u003d\u003d 1\n        data        : type \u003d\u003d 3\n\nThis is to allow a userspace app to see if the ring buffer format changes\nor not.\n\n[ Impact: allow userspace apps to know of ringbuffer format changes ]\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n"
    },
    {
      "commit": "e6187007d6c365b551c69ea3df46f06fd1c8bd19",
      "tree": "6607598ccbe4f10470114f3667649c603d19cc0c",
      "parents": [
        "93eb677d74a4f7d3edfb678c94f6c0544d9fbad2"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Wed Apr 15 13:36:40 2009 -0400"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Fri Apr 17 17:01:37 2009 +0200"
      },
      "message": "tracing/events: add startup tests for events\n\nAs events start to become popular, and the new way to add tracing\ninfrastructure into ftrace, it is important to catch any problems\nthat might happen with a mistake in the TRACE_EVENT macro.\n\nThis patch introduces a startup self test on the registered trace\nevents. Note, it can only do a generic test, any type of testing that\nneeds more involement is needed to be implemented by the tracepoint\ncreators.\n\nThe test goes down one by one enabling a trace point and running\nsome random tasks (random in the sense that I just made them up).\nThose tasks are creating threads, grabbing mutexes and spinlocks\nand using workqueues.\n\nAfter testing each event individually, it does the same test after\nenabling each system of trace points. Like sched, irq, lockdep.\n\nThen finally it enables all tracepoints and performs the tasks again.\nThe output to the console on bootup will look like this when everything\nworks:\n\nRunning tests on trace events:\nTesting event kfree_skb: OK\nTesting event kmalloc: OK\nTesting event kmem_cache_alloc: OK\nTesting event kmalloc_node: OK\nTesting event kmem_cache_alloc_node: OK\nTesting event kfree: OK\nTesting event kmem_cache_free: OK\nTesting event irq_handler_exit: OK\nTesting event irq_handler_entry: OK\nTesting event softirq_entry: OK\nTesting event softirq_exit: OK\nTesting event lock_acquire: OK\nTesting event lock_release: OK\nTesting event sched_kthread_stop: OK\nTesting event sched_kthread_stop_ret: OK\nTesting event sched_wait_task: OK\nTesting event sched_wakeup: OK\nTesting event sched_wakeup_new: OK\nTesting event sched_switch: OK\nTesting event sched_migrate_task: OK\nTesting event sched_process_free: OK\nTesting event sched_process_exit: OK\nTesting event sched_process_wait: OK\nTesting event sched_process_fork: OK\nTesting event sched_signal_send: OK\nRunning tests on trace event systems:\nTesting event system skb: OK\nTesting event system kmem: OK\nTesting event system irq: OK\nTesting event system lockdep: OK\nTesting event system sched: OK\nRunning tests on all trace events:\nTesting all events: OK\n\n[ folded in:\n\n  tracing: add #include \u003clinux/delay.h\u003e to fix build failure in test_work()\n\n  This build failure occured on a few rare configs:\n\n   kernel/trace/trace_events.c: In function ‘test_work’:\n   kernel/trace/trace_events.c:975: error: implicit declaration of function ‘udelay’\n   kernel/trace/trace_events.c:980: error: implicit declaration of function ‘msleep’\n\n  delay.h is included in way too many other headers, hiding cases\n  where new usage is added without header inclusion.\n\n  [ Impact: build fix ]\n\n  Signed-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n]\n\n[ Impact: add event tracer self-tests ]\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n"
    },
    {
      "commit": "93eb677d74a4f7d3edfb678c94f6c0544d9fbad2",
      "tree": "8bbc46895be623a78316230362e94969dbb02135",
      "parents": [
        "f3948f8857ef5de239f28a61dddb1554a0ae4c2c"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Wed Apr 15 13:24:06 2009 -0400"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Fri Apr 17 16:59:15 2009 +0200"
      },
      "message": "ftrace: use module notifier for function tracer\n\nThe hooks in the module code for the function tracer must be called\nbefore any of that module code runs. The function tracer hooks\nmodify the module (replacing calls to mcount to nops). If the code\nis executed while the change occurs, then the CPU can take a GPF.\n\nTo handle the above with a bit of paranoia, I originally implemented\nthe hooks as calls directly from the module code.\n\nAfter examining the notifier calls, it looks as though the start up\nnotify is called before any of the module\u0027s code is executed. This makes\nthe use of the notify safe with ftrace.\n\nOnly the startup notify is required to be \"safe\". The shutdown simply\nremoves the entries from the ftrace function list, and does not modify\nany code.\n\nThis change has another benefit. It removes a issue with a reverse dependency\nin the mutexes of ftrace_lock and module_mutex.\n\n[ Impact: fix lock dependency bug, cleanup ]\n\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n"
    },
    {
      "commit": "f3948f8857ef5de239f28a61dddb1554a0ae4c2c",
      "tree": "62e5568c18b944d086366510fb0ff8ed71682897",
      "parents": [
        "1d54ad6da9192fed5dd3b60224d9f2dfea0dcd82"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Wed Apr 15 11:02:56 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Thu Apr 16 10:11:01 2009 +0200"
      },
      "message": "blktrace: fix context-info when mixed-using blk tracer and trace events\n\nWhen current tracer is set to blk tracer, TRACE_ITER_CONTEXT_INFO is\nunset, but actually context-info is printed:\n\n    pdflush-431   [000]   821.181576:   8,0    P   N [pdflush]\n\nAnd then if we enable TRACE_ITER_CONTEXT_INFO:\n\n    # echo context-info \u003e trace_options\n\nWe\u0027ll see context-info printed twice. What\u0027s worse, when we use blk\ntracer and trace events at the same time, we\u0027ll see no context-info\nfor trace events at all:\n\n    jbd2_commit_logging: dev dm-0:8 transaction 333227\n    jbd2_end_commit: dev dm-0:8 transaction 333227 head 332814\n      rm-25433 [001]  9578.307485:   8,18   m   N cfq25433 slice expired t\u003d0\n      rm-25433 [001]  9578.307486:   8,18   m   N cfq25433 put_queue\n\nThis patch adds blk_tracer-\u003eset_flags(), and context-info flag is unset\nonly when we set the output to classic mode.\n\nNote after this patch, one should unset context-info explicitly if he\nwants to get binary output that can be parsed by blkparse:\n\n    # echo nocontext-info \u003e trace_options\n    # echo bin \u003e trace_options\n    # echo blk \u003e current_tracer\n    # cat trace_pipe | blkparse -i -\n\nReported-by: Theodore Ts\u0027o \u003ctytso@mit.edu\u003e\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c49E54E60.50408@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "1d54ad6da9192fed5dd3b60224d9f2dfea0dcd82",
      "tree": "fd5917f144ec820b933795bedd7eddea96bee374",
      "parents": [
        "9908c30997b8a73c95f836170b9998dae9aa3f4a"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Tue Apr 14 14:00:05 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Thu Apr 16 10:10:59 2009 +0200"
      },
      "message": "blktrace: add trace/ to /sys/block/sda\n\nImpact: allow ftrace-plugin blktrace to trace device-mapper devices\n\nTo trace a single partition:\n  # echo 1 \u003e /sys/block/sda/sda1/enable\n\nTo trace the whole sda instead:\n  # echo 1 \u003e /sys/block/sda/enable\n\nThus we also fix an issue reported by Ted, that ftrace-plugin blktrace\ncan\u0027t be used to trace device-mapper devices.\n\nNow:\n\n  # echo 1 \u003e /sys/block/dm-0/trace/enable\n  echo: write error: No such device or address\n  # mount -t ext4 /dev/dm-0 /mnt\n  # echo 1 \u003e /sys/block/dm-0/trace/enable\n  # echo blk \u003e /debug/tracing/current_tracer\n\nReported-by: Theodore Tso \u003ctytso@mit.edu\u003e\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Shawn Du \u003cduyuyang@gmail.com\u003e\nCc: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nLKML-Reference: \u003c49E42665.6020506@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "9908c30997b8a73c95f836170b9998dae9aa3f4a",
      "tree": "d44d6d663a150c26b5d7be6edebb1abbb88ecc94",
      "parents": [
        "d0deef5b14af7d5bbd0003a0a2a1a32326e20a6d"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Tue Apr 14 13:59:34 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Thu Apr 16 10:10:58 2009 +0200"
      },
      "message": "blktrace: support per-partition tracing for ftrace plugin\n\nThe previous patch adds support to trace a single partition for\nrelay+ioctl blktrace, and this patch is for ftrace plugin blktrace:\n\n  # echo 1 \u003e /sys/block/sda/sda7/enable\n  # cat start_lba\n  102398373\n  # cat end_lba\n  102703545\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Shawn Du \u003cduyuyang@gmail.com\u003e\nCc: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nLKML-Reference: \u003c49E42646.4060608@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "d0deef5b14af7d5bbd0003a0a2a1a32326e20a6d",
      "tree": "de1d438935a4cc50dd9d7e0ccccc3cfc5c7e6c06",
      "parents": [
        "9cfe06f8cd5c8c3ad6ab323973e87dde670642b8"
      ],
      "author": {
        "name": "Shawn Du",
        "email": "duyuyang@gmail.com",
        "time": "Tue Apr 14 13:58:56 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Thu Apr 16 10:10:57 2009 +0200"
      },
      "message": "blktrace: support per-partition tracing\n\nThough one can specify \u0027-d /dev/sda1\u0027 when using blktrace, it still\ntraces the whole sda.\n\nTo support per-partition tracing, when we start tracing, we initialize\nbt-\u003estart_lba and bt-\u003eend_lba to the start and end sector of that\npartition.\n\nNote some actions are per device, thus we don\u0027t filter 0-sector events.\n\nThe original patch and discussion can be found here:\n\thttp://marc.info/?l\u003dlinux-btrace\u0026m\u003d122949374214540\u0026w\u003d2\n\nSigned-off-by: Shawn Du \u003cduyuyang@gmail.com\u003e\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nLKML-Reference: \u003c49E42620.4050701@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "ad8d75fff811a6a230f7f43b05a6483099349533",
      "tree": "764f75c0785b29067b141719b6e8000f005da7fd",
      "parents": [
        "ecda8ae02a08ef065ff387f5cb2a2d4999da2408"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Tue Apr 14 19:39:12 2009 -0400"
      },
      "committer": {
        "name": "Steven Rostedt",
        "email": "rostedt@goodmis.org",
        "time": "Tue Apr 14 22:05:43 2009 -0400"
      },
      "message": "tracing/events: move trace point headers into include/trace/events\n\nImpact: clean up\n\nCreate a sub directory in include/trace called events to keep the\ntrace point headers in their own separate directory. Only headers that\ndeclare trace points should be defined in this directory.\n\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Neil Horman \u003cnhorman@tuxdriver.com\u003e\nCc: Zhao Lei \u003czhaolei@cn.fujitsu.com\u003e\nCc: Eduard - Gabriel Munteanu \u003ceduard.munteanu@linux360.ro\u003e\nCc: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n"
    },
    {
      "commit": "61f919a12fbdc3fd20f980a34a118d597198a392",
      "tree": "0c8ee118fabb29ff2c0be699948cb4b00627b543",
      "parents": [
        "6d723736e472f7a0cd5b62c84152fceead241328"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Tue Apr 14 18:22:32 2009 -0400"
      },
      "committer": {
        "name": "Steven Rostedt",
        "email": "rostedt@goodmis.org",
        "time": "Tue Apr 14 22:04:19 2009 -0400"
      },
      "message": "tracing/events: fix compile for modules disabled\n\nImpact: compile fix\n\nThe addition of TRACE_EVENT for modules breaks the build for when\nmodules are disabled. This code fixes that.\n\nReported-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n"
    },
    {
      "commit": "6d723736e472f7a0cd5b62c84152fceead241328",
      "tree": "8df2f6c47ebdfdeb8979758c877a5abbd9c06aef",
      "parents": [
        "17c873ec280a03894bc718af817f7f24fa787ae1"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Fri Apr 10 14:53:50 2009 -0400"
      },
      "committer": {
        "name": "Steven Rostedt",
        "email": "rostedt@goodmis.org",
        "time": "Tue Apr 14 12:58:03 2009 -0400"
      },
      "message": "tracing/events: add support for modules to TRACE_EVENT\n\nImpact: allow modules to add TRACE_EVENTS on load\n\nThis patch adds the final hooks to allow modules to use the TRACE_EVENT\nmacro. A notifier and a data structure are used to link the TRACE_EVENTs\ndefined in the module to connect them with the ftrace event tracing system.\n\nIt also adds the necessary automated clean ups to the trace events when a\nmodule is removed.\n\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n"
    },
    {
      "commit": "17c873ec280a03894bc718af817f7f24fa787ae1",
      "tree": "3acdcd41c2b80c207932625cc5e132056954d803",
      "parents": [
        "a59fd6027218bd7c994e39d14afe0242f895144f"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Fri Apr 10 18:12:50 2009 -0400"
      },
      "committer": {
        "name": "Steven Rostedt",
        "email": "rostedt@goodmis.org",
        "time": "Tue Apr 14 12:58:01 2009 -0400"
      },
      "message": "tracing/events: add export symbols for trace events in modules\n\nImpact: let modules add trace events\n\nThe trace event code requires some functions to be exported to allow\nmodules to use TRACE_EVENT. This patch adds EXPORT_SYMBOL_GPL to the\nnecessary functions.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n"
    },
    {
      "commit": "a59fd6027218bd7c994e39d14afe0242f895144f",
      "tree": "c22e6ff2924726319eac84c480eca72066bad660",
      "parents": [
        "f42c85e74faa422cf0bc747ed808681145448f88"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Fri Apr 10 13:52:20 2009 -0400"
      },
      "committer": {
        "name": "Steven Rostedt",
        "email": "rostedt@goodmis.org",
        "time": "Tue Apr 14 12:58:00 2009 -0400"
      },
      "message": "tracing/events: convert event call sites to use a link list\n\nImpact: makes it possible to define events in modules\n\nThe events are created by reading down the section that they are linked\nin by the macros. But this is not scalable to modules. This patch converts\nthe manipulations to use a global link list, and on boot up it adds\nthe items in the section to the list.\n\nThis change will allow modules to add their tracing events to the list as\nwell.\n\nNote, this change alone does not permit modules to use the TRACE_EVENT macros,\nbut the change is needed for them to eventually do so.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n"
    },
    {
      "commit": "f42c85e74faa422cf0bc747ed808681145448f88",
      "tree": "3775dc0a402f7da5247aa8ceb92ae89590038199",
      "parents": [
        "97f2025153499faa17267a0d4e18c7afaf73f39d"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Mon Apr 13 12:25:37 2009 -0400"
      },
      "committer": {
        "name": "Steven Rostedt",
        "email": "rostedt@goodmis.org",
        "time": "Tue Apr 14 12:57:59 2009 -0400"
      },
      "message": "tracing/events: move the ftrace event tracing code to core\n\nThis patch moves the ftrace creation into include/trace/ftrace.h and\nsimplifies the work of developers in adding new tracepoints.\nJust the act of creating the trace points in include/trace and including\ndefine_trace.h will create the events in the debugfs/tracing/events\ndirectory.\n\nThis patch removes the need of include/trace/trace_events.h\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n"
    },
    {
      "commit": "97f2025153499faa17267a0d4e18c7afaf73f39d",
      "tree": "cd3ea51a93093ea5250ef38b4b5bf6c2aa3f9ed5",
      "parents": [
        "9504504cbab29ecb694186b1c5b15d3579c43c51"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Mon Apr 13 11:20:49 2009 -0400"
      },
      "committer": {
        "name": "Steven Rostedt",
        "email": "rostedt@goodmis.org",
        "time": "Tue Apr 14 12:57:58 2009 -0400"
      },
      "message": "tracing/events: move declarations from trace directory to core include\n\nIn preparation to allowing trace events to happen in modules, we need\nto move some of the local declarations in the kernel/trace directory\ninto include/linux.\n\nThis patch simply moves the declarations and performs no context changes.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n"
    },
    {
      "commit": "9504504cbab29ecb694186b1c5b15d3579c43c51",
      "tree": "fd91bec634dfff191699616523812a3d4ffe6348",
      "parents": [
        "a8d154b009168337494fbf345671bab74d3e4b8b"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Sat Apr 11 12:59:57 2009 -0400"
      },
      "committer": {
        "name": "Steven Rostedt",
        "email": "rostedt@goodmis.org",
        "time": "Tue Apr 14 12:57:57 2009 -0400"
      },
      "message": "tracing: make trace_seq operations available for core kernel\n\nIn the process to make TRACE_EVENT macro work for modules, the trace_seq\noperations must be available for core kernel code.\n\nThese operations are quite useful and can be used for other implementations.\n\nThe main idea is that we create a trace_seq handle that acts very much\nlike the seq_file handle.\n\n\tstruct trace_seq *s \u003d kmalloc(sizeof(*s, GFP_KERNEL);\n\n\ttrace_seq_init(s);\n\ttrace_seq_printf(s, \"some data %d\\n\", variable);\n\n\tprintk(\"%s\", s-\u003ebuffer);\n\nThe main use is to allow a top level function call several other functions\nthat may store printf like data into the buffer. Then at the end, the top\nlevel function can process all the data with any method it would like to.\nIt could be passed to userspace, output via printk or even use seq_file:\n\n\ttrace_seq_to_user(s, ubuf, cnt);\n\tseq_puts(m, s-\u003ebuffer);\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n"
    },
    {
      "commit": "ea20d9293ce423a39717ed4375393129a2e701f9",
      "tree": "30cbfd532e6541c17eb69a63044cfe7bce6cf974",
      "parents": [
        "0a19e53c1514ad8e9c3cbab40c6c3f52c86f403d"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Fri Apr 10 08:54:16 2009 -0400"
      },
      "committer": {
        "name": "Steven Rostedt",
        "email": "rostedt@goodmis.org",
        "time": "Tue Apr 14 09:43:40 2009 -0400"
      },
      "message": "tracing: consolidate trace and trace_event headers\n\nImpact: clean up\n\nNeil Horman (et. al.) criticized the way the trace events were broken up\ninto two files. The reason for that was that ftrace needed to separate out\nthe declarations from where the #include \u003clinux/tracepoint.h\u003e was used.\nIt then dawned on me that the tracepoint.h header only needs to define the\nTRACE_EVENT macro if it is not already defined.\n\nThe solution is simply to test if TRACE_EVENT is defined, and if it is not\nthen the linux/tracepoint.h header can define it. This change consolidates\nall the \u003ctraces\u003e.h and \u003ctraces\u003e_event_types.h into the \u003ctraces\u003e.h file.\n\nReported-by: Neil Horman \u003cnhorman@tuxdriver.com\u003e\nReported-by: Theodore Tso \u003ctytso@mit.edu\u003e\nReported-by: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Zhaolei \u003czhaolei@cn.fujitsu.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n"
    },
    {
      "commit": "0a19e53c1514ad8e9c3cbab40c6c3f52c86f403d",
      "tree": "1089246a64f65b2b3c2ba29182ed4f9ce9ad375e",
      "parents": [
        "b5c851a88a369854c04e511cefb84ea2d0cfa209"
      ],
      "author": {
        "name": "Tom Zanussi",
        "email": "tzanussi@gmail.com",
        "time": "Mon Apr 13 03:17:50 2009 -0500"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Apr 14 00:03:55 2009 +0200"
      },
      "message": "tracing/filters: allow on-the-fly filter switching\n\nThis patch allows event filters to be safely removed or switched\non-the-fly while avoiding the use of rcu or the suspension of tracing of\nprevious versions.\n\nIt does it by adding a new filter_pred_none() predicate function which\ndoes nothing and by never deallocating either the predicates or any of\nthe filter_pred members used in matching; the predicate lists are\nallocated and initialized during ftrace_event_calls initialization.\n\nWhenever a filter is removed or replaced, the filter_pred_* functions\ncurrently in use by the affected ftrace_event_call are immediately\nswitched over to to the filter_pred_none() function, while the rest of\nthe filter_pred members are left intact, allowing any currently\nexecuting filter_pred_* functions to finish up, using the values they\u0027re\ncurrently using.\n\nIn the case of filter replacement, the new predicate values are copied\ninto the old predicates after the above step, and the filter_pred_none()\nfunctions are replaced by the filter_pred_* functions for the new\nfilter.  In this case, it is possible though very unlikely that a\nprevious filter_pred_* is still running even after the\nfilter_pred_none() switch and the switch to the new filter_pred_*.  In\nthat case, however, because nothing has been deallocated in the\nfilter_pred, the worst that can happen is that the old filter_pred_*\nfunction sees the new values and as a result produces either a false\npositive or a false negative, depending on the values it finds.\n\nSo one downside to this method is that rarely, it can produce a bad\nmatch during the filter switch, but it should be possible to live with\nthat, IMHO.\n\nThe other downside is that at least in this patch the predicate lists\nare always pre-allocated, taking up memory from the start.  They could\nprobably be allocated on first-use, and de-allocated when tracing is\ncompletely stopped - if this patch makes sense, I could create another\none to do that later on.\n\nOh, and it also places a restriction on the size of __arrays in events,\ncurrently set to 128, since they can\u0027t be larger than the now embedded\nstr_val arrays in the filter_pred struct.\n\nSigned-off-by: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: paulmck@linux.vnet.ibm.com\nLKML-Reference: \u003c1239610670.6660.49.camel@tropicana\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "b5c851a88a369854c04e511cefb84ea2d0cfa209",
      "tree": "55084d3d51708f90f27d0a70db5ab63916942f14",
      "parents": [
        "eb02ce017dd83985041a7e54c6449f92d53b026f",
        "80a04d3f2f94fb68b5df05e3ac6697130bc3467a"
      ],
      "author": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Apr 14 00:02:16 2009 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Apr 14 00:02:22 2009 +0200"
      },
      "message": "Merge branch \u0027linus\u0027 into tracing/core\n\nMerge reason: merge latest tracing fixes to avoid conflicts in\n              kernel/trace/trace_events_filter.c with upcoming change\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "eb02ce017dd83985041a7e54c6449f92d53b026f",
      "tree": "7f52a3e92bf3dae1f3c7754a58ab76fb2eceb2e1",
      "parents": [
        "5f77a88b3f8268b11940b51d2e03d26a663ceb90"
      ],
      "author": {
        "name": "Tom Zanussi",
        "email": "tzanussi@gmail.com",
        "time": "Wed Apr 08 03:15:54 2009 -0500"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Apr 14 00:00:56 2009 +0200"
      },
      "message": "tracing/filters: use ring_buffer_discard_commit() in filter_check_discard()\n\nThis patch changes filter_check_discard() to make use of the new\nring_buffer_discard_commit() function and modifies the current users to\ncall the old commit function in the non-discard case.\n\nIt also introduces a version of filter_check_discard() that uses the\nglobal trace buffer (filter_current_check_discard()) for those cases.\n\nv2 changes:\n\n- fix compile error noticed by Ingo Molnar\n\nSigned-off-by: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: fweisbec@gmail.com\nLKML-Reference: \u003c1239178554.10295.36.camel@tropicana\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "5f77a88b3f8268b11940b51d2e03d26a663ceb90",
      "tree": "b9540f9391b6f03860666193787619b5bdff1375",
      "parents": [
        "77d9f465d46fd67cdb82ee5e1ab99dd57a17c486"
      ],
      "author": {
        "name": "Tom Zanussi",
        "email": "tzanussi@gmail.com",
        "time": "Wed Apr 08 03:14:01 2009 -0500"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Apr 14 00:00:55 2009 +0200"
      },
      "message": "tracing/infrastructure: separate event tracer from event support\n\nAdd a new config option, CONFIG_EVENT_TRACING that gets selected\nwhen CONFIG_TRACING is selected and adds everything needed by the stuff\nin trace_export - basically all the event tracing support needed by e.g.\nbprint, minus the actual events, which are only included if\nCONFIG_EVENT_TRACER is selected.\n\nSo CONFIG_EVENT_TRACER can be used to turn on or off the generated events\n(what I think of as the \u0027event tracer\u0027), while CONFIG_EVENT_TRACING turns\non or off the base event tracing support used by both the event tracer and\nthe other things such as bprint that can\u0027t be configured out.\n\nSigned-off-by: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: fweisbec@gmail.com\nLKML-Reference: \u003c1239178441.10295.34.camel@tropicana\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "77d9f465d46fd67cdb82ee5e1ab99dd57a17c486",
      "tree": "c21063ae5dff55522593f29e952c8a05958c6ce6",
      "parents": [
        "fa1b47dd85453ec7d4bcfe4aa4a2d172ba452fc3"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Thu Apr 02 01:16:59 2009 -0400"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Apr 14 00:00:54 2009 +0200"
      },
      "message": "tracing/filters: use ring_buffer_discard_commit for discarded events\n\nThe ring_buffer_discard_commit makes better usage of the ring_buffer\nwhen an event has been discarded. It tries to remove it completely if\npossible.\n\nThis patch converts the trace event filtering to use\nring_buffer_discard_commit instead of the ring_buffer_event_discard.\n\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "fa1b47dd85453ec7d4bcfe4aa4a2d172ba452fc3",
      "tree": "3e5f14cccd9e4ec772310c1b2792b6f4b84bf7cb",
      "parents": [
        "e45f2e2bd298e1ff687448e5fd15a3588b5807ec"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Thu Apr 02 00:09:41 2009 -0400"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Apr 14 00:00:53 2009 +0200"
      },
      "message": "ring-buffer: add ring_buffer_discard_commit\n\nThe ring_buffer_discard_commit is similar to ring_buffer_event_discard\nbut it can only be done on an event that has yet to be commited.\nUnpredictable results can happen otherwise.\n\nThe main difference between ring_buffer_discard_commit and\nring_buffer_event_discard is that ring_buffer_discard_commit will try\nto free the data in the ring buffer if nothing has addded data\nafter the reserved event. If something did, then it acts almost the\nsame as ring_buffer_event_discard followed by a\nring_buffer_unlock_commit.\n\nNote, either ring_buffer_commit_discard and ring_buffer_unlock_commit\ncan be called on an event, not both.\n\nThis commit also exports both discard functions to be usable by\nGPL modules.\n\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "e45f2e2bd298e1ff687448e5fd15a3588b5807ec",
      "tree": "353f132d53ecb3e991cf59c3d43a7664cb87b743",
      "parents": [
        "e1112b4d96859367a93468027c9635e2ac04eb3f"
      ],
      "author": {
        "name": "Tom Zanussi",
        "email": "tzanussi@gmail.com",
        "time": "Tue Mar 31 00:49:16 2009 -0500"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Apr 14 00:00:51 2009 +0200"
      },
      "message": "tracing/filters: add TRACE_EVENT_FORMAT_NOFILTER event macro\n\nFrederic Weisbecker suggested that the trace_special event shouldn\u0027t be\nfilterable; this patch adds a TRACE_EVENT_FORMAT_NOFILTER event macro\nthat allows an event format to be exported without having a filter\nattached, and removes filtering from the trace_special event.\n\nSigned-off-by: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "e1112b4d96859367a93468027c9635e2ac04eb3f",
      "tree": "5170980ea71ee4bb5d0196880b58dbc997211b65",
      "parents": [
        "66de7792c02693b49671afe58c771fde3b092fc7"
      ],
      "author": {
        "name": "Tom Zanussi",
        "email": "tzanussi@gmail.com",
        "time": "Tue Mar 31 00:48:49 2009 -0500"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Apr 14 00:00:50 2009 +0200"
      },
      "message": "tracing/filters: add run-time field descriptions to TRACE_EVENT_FORMAT events\n\nThis patch adds run-time field descriptions to all the event formats\nexported using TRACE_EVENT_FORMAT.  It also hooks up all the tracers\nthat use them (i.e. the tracers in the \u0027ftrace subsystem\u0027) so they can\nalso have their output filtered by the event-filtering mechanism.\n\nWhen I was testing this, there were a couple of things that fooled me\ninto thinking the filters weren\u0027t working, when actually they were -\nI\u0027ll mention them here so others don\u0027t make the same mistakes (and file\nbug reports. ;-)\n\nOne is that some of the tracers trace multiple events e.g. the\nsched_switch tracer uses the context_switch and wakeup events, and if\nyou don\u0027t set filters on all of the traced events, the unfiltered output\nfrom the events without filters on them can make it look like the\nfiltering as a whole isn\u0027t working properly, when actually it is doing\nwhat it was asked to do - it just wasn\u0027t asked to do the right thing.\n\nThe other is that for the really high-volume tracers e.g. the function\ntracer, the volume of filtered events can be so high that it pushes the\nunfiltered events out of the ring buffer before they can be read so e.g.\ncat\u0027ing the trace file repeatedly shows either no output, or once in\nawhile some output but that isn\u0027t there the next time you read the\ntrace, which isn\u0027t what you normally expect when reading the trace file.\nIf you read from the trace_pipe file though, you can catch them before\nthey disappear.\n\nChanges from v1:\n\nAs suggested by Frederic Weisbecker:\n\n- get rid of externs in functions\n- added unlikely() to filter_check_discard()\n\nSigned-off-by: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "66de7792c02693b49671afe58c771fde3b092fc7",
      "tree": "de50b82ef212c6f9a3f950282b45485e8d87b0a3",
      "parents": [
        "b78825d608f30a47e3154ab6872a03f0de0c9d45"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Wed Apr 01 16:19:19 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Sun Apr 12 15:32:46 2009 +0200"
      },
      "message": "blktrace: fix output of BLK_TC_PC events\n\nBLK_TC_PC events should be treated differently with BLK_TC_FS events.\n\nBefore this patch:\n\n # echo 1 \u003e /sys/block/sda/sda1/trace/enable\n # echo pc \u003e /sys/block/sda/sda1/trace/act_mask\n # echo blk \u003e /debugfs/tracing/current_tracer\n # (generate some BLK_TC_PC events)\n # cat trace\n        bash-2184  [000]  1774.275413:   8,7    I   N [bash]\n        bash-2184  [000]  1774.275435:   8,7    D   N [bash]\n        bash-2184  [000]  1774.275540:   8,7    I   R [bash]\n        bash-2184  [000]  1774.275547:   8,7    D   R [bash]\n ksoftirqd/0-4     [000]  1774.275580:   8,7    C   N 0 [0]\n        bash-2184  [000]  1774.275648:   8,7    I   R [bash]\n        bash-2184  [000]  1774.275653:   8,7    D   R [bash]\n ksoftirqd/0-4     [000]  1774.275682:   8,7    C   N 0 [0]\n        bash-2184  [000]  1774.275739:   8,7    I   R [bash]\n        bash-2184  [000]  1774.275744:   8,7    D   R [bash]\n ksoftirqd/0-4     [000]  1774.275771:   8,7    C   N 0 [0]\n        bash-2184  [000]  1774.275804:   8,7    I   R [bash]\n        bash-2184  [000]  1774.275808:   8,7    D   R [bash]\n ksoftirqd/0-4     [000]  1774.275836:   8,7    C   N 0 [0]\n\nAfter this patch:\n\n # cat trace\n        bash-2263  [000]   366.782149:   8,7    I   N 0 (00 ..) [bash]\n        bash-2263  [000]   366.782323:   8,7    D   N 0 (00 ..) [bash]\n        bash-2263  [000]   366.782557:   8,7    I   R 8 (25 00 ..) [bash]\n        bash-2263  [000]   366.782560:   8,7    D   R 8 (25 00 ..) [bash]\n ksoftirqd/0-4     [000]   366.782582:   8,7    C   N (25 00 ..) [0]\n        bash-2263  [000]   366.782648:   8,7    I   R 8 (5a 00 3f 00) [bash]\n        bash-2263  [000]   366.782650:   8,7    D   R 8 (5a 00 3f 00) [bash]\n ksoftirqd/0-4     [000]   366.782669:   8,7    C   N (5a 00 3f 00) [0]\n        bash-2263  [000]   366.782710:   8,7    I   R 8 (5a 00 08 00) [bash]\n        bash-2263  [000]   366.782713:   8,7    D   R 8 (5a 00 08 00) [bash]\n ksoftirqd/0-4     [000]   366.782730:   8,7    C   N (5a 00 08 00) [0]\n        bash-2263  [000]   366.783375:   8,7    I   R 36 (5a 00 08 00) [bash]\n        bash-2263  [000]   366.783379:   8,7    D   R 36 (5a 00 08 00) [bash]\n ksoftirqd/0-4     [000]   366.783404:   8,7    C   N (5a 00 08 00) [0]\n\nThis is what we do with PC events in user-space blktrace.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Arnaldo Carvalho de Melo \u003cacme@redhat.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: \u003c49D32387.9040106@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "b78825d608f30a47e3154ab6872a03f0de0c9d45",
      "tree": "a20ac6c33f67749466fe21ebc8edf8e3c139f579",
      "parents": [
        "fc182a4330fc22ea1b68fa3d5064dd85a73a4c4a"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Wed Apr 01 16:18:53 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Sun Apr 12 15:32:45 2009 +0200"
      },
      "message": "blktrace: fix output of unknown events\n\nNot all events are pc (packet command) events. An event is a pc\nevent only if it has BLK_TC_PC bit set.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Arnaldo Carvalho de Melo \u003cacme@redhat.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: \u003c49D3236D.3090705@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "02af61bb50f5d5f0322dbe5ab2a0d75808d25c7b",
      "tree": "fa087ed8a584d7b66016e6a1421e538369d52e5a",
      "parents": [
        "abd41443ac76d3e9c29a8c1d9e9a3312306cc55e"
      ],
      "author": {
        "name": "Zhaolei",
        "email": "zhaolei@cn.fujitsu.com",
        "time": "Fri Apr 10 14:26:18 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Sun Apr 12 15:22:55 2009 +0200"
      },
      "message": "tracing, kmemtrace: Separate include/trace/kmemtrace.h to kmemtrace part and tracepoint part\n\nImpact: refactor code for future changes\n\nCurrent kmemtrace.h is used both as header file of kmemtrace and kmem\u0027s\ntracepoints definition.\n\nTracepoints\u0027 definition file may be used by other code, and should only have\ndefinition of tracepoint.\n\nWe can separate include/trace/kmemtrace.h into 2 files:\n\n  include/linux/kmemtrace.h: header file for kmemtrace\n  include/trace/kmem.h:      definition of kmem tracepoints\n\nSigned-off-by: Zhao Lei \u003czhaolei@cn.fujitsu.com\u003e\nAcked-by: Eduard - Gabriel Munteanu \u003ceduard.munteanu@linux360.ro\u003e\nAcked-by: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nLKML-Reference: \u003c49DEE68A.5040902@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "44e9c8b7adc52079f0535f9de0c2c2477831389b",
      "tree": "4c021dd16a8329f8543a97310081724015c81fc6",
      "parents": [
        "a3e0ab050774117d4a6173087c8bf3888662a83f"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Sat Apr 11 15:55:28 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Sun Apr 12 11:59:29 2009 +0200"
      },
      "message": "tracing/filters: return proper error code when writing filter file\n\n- propagate return value of filter_add_pred() to the user\n\n- return -ENOSPC but not -ENOMEM or -EINVAL when the filter array\n  is full\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c49E04CF0.3010105@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "a3e0ab050774117d4a6173087c8bf3888662a83f",
      "tree": "91d0f5c56a6b01d06c18864e5bcd8ec2c3405eb8",
      "parents": [
        "bcabd91c271e50eebc0cb9220ac92700332b452e"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Sat Apr 11 15:52:51 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Sun Apr 12 11:59:28 2009 +0200"
      },
      "message": "tracing/filters: allow user input integer to be oct or hex\n\nBefore patch:\n\n # echo \u0027parent_pid \u003d\u003d 0x10\u0027 \u003e events/sched/sched_process_fork/filter\n # cat sched/sched_process_fork/filter\n parent_pid \u003d\u003d 0\n\nAfter patch:\n\n # cat sched/sched_process_fork/filter\n parent_pid \u003d\u003d 16\n\nAlso check the input more strictly.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c49E04C53.4010600@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "bcabd91c271e50eebc0cb9220ac92700332b452e",
      "tree": "5513a154d06b4ad1737e6787feeab5d2573f2c43",
      "parents": [
        "8433a40eb7f2c4883ad57f9900f63e4d59240eb7"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Sat Apr 11 15:52:35 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Sun Apr 12 11:59:28 2009 +0200"
      },
      "message": "tracing/filters: fix NULL pointer dereference\n\nTry this, and you\u0027ll see NULL pointer dereference bug:\n\n  # echo -n \u0027parent_comm \u003d\u003d\u0027 \u003e sched/sched_process_fork/filter\n\nBecause we passed NULL ptr to simple_strtoull().\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c49E04C43.1050504@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "8433a40eb7f2c4883ad57f9900f63e4d59240eb7",
      "tree": "7fab36945d0266ca00a9a13c2061cc2a0a2ae5dc",
      "parents": [
        "0462b5664b2bda5a18fef7efb5bb32ce36590c1a"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Sat Apr 11 15:52:18 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Sun Apr 12 11:59:27 2009 +0200"
      },
      "message": "tracing/filters: NIL-terminate user input filter\n\nMake sure messages from user space are NIL-terminated strings,\notherwise we could dump random memory while reading filter file.\n\nTry this:\n # echo \u0027parent_comm \u003d\u003d\u0027 \u003e events/sched/sched_process_fork/filter\n # cat events/sched/sched_process_fork/filter\n parent_comm \u003d\u003d �\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c49E04C32.6060508@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "0462b5664b2bda5a18fef7efb5bb32ce36590c1a",
      "tree": "99a67a1af4e275d6654b6c2dd4bc00d2d70406ba",
      "parents": [
        "8f7c2c37319a81ef4c2bfdec67b1ccd5744d97e4"
      ],
      "author": {
        "name": "Zhaolei",
        "email": "zhaolei@cn.fujitsu.com",
        "time": "Wed Apr 08 17:00:13 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Fri Apr 10 15:48:53 2009 +0200"
      },
      "message": "ftrace: Output REC-\u003evar instead of __entry-\u003evar for trace format\n\nprint fmt: \"irq\u003d%d return\u003d%s\", __entry-\u003eirq, __entry-\u003eret ? \\\"handled\\\" : \\\"unhandled\\\"\n\n\"__entry\" should be convert to \"REC\" by __stringify() macro.\n\nSigned-off-by: Zhao Lei \u003czhaolei@cn.fujitsu.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c49DC679D.2090901@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "4d1f4372dbea068ba4ee3d98231133a4a4ee15bd",
      "tree": "ddde3be45174648efd3f151c40220b07bb6ca757",
      "parents": [
        "93cfb3c9fd83d877a8f1ffad9ff862b617b32828"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Fri Apr 10 08:48:36 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Fri Apr 10 13:08:50 2009 +0200"
      },
      "message": "tracing: fix document references\n\nWhen moving documents to Documentation/trace/, I forgot to\ngrep Kconfig to find out those references.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nCc: Pekka Paalanen \u003cpq@iki.fi\u003e\nCc: eduard.munteanu@linux360.ro\nLKML-Reference: \u003c49DE97EF.7080208@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "1cad1252ed279ea59f3f8d3d3a5817eeb2f7a4d3",
      "tree": "ec5af7a70f58ad27ad21fc27815ca164ccf92c36",
      "parents": [
        "dcef788eb9659b61a2110284fcce3ca6e63480d2",
        "93cfb3c9fd83d877a8f1ffad9ff862b617b32828"
      ],
      "author": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Fri Apr 10 12:46:28 2009 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Fri Apr 10 12:46:51 2009 +0200"
      },
      "message": "Merge branch \u0027tracing/urgent\u0027 into tracing/core\n\nMerge reason: pick up both v2.6.30-rc1 [which includes tracing/urgent fixes]\n              and pick up the current lineup of tracing/urgent fixes as well\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "93cfb3c9fd83d877a8f1ffad9ff862b617b32828",
      "tree": "a88753a44117b9dcfdd65bb0d0572eb5b945e961",
      "parents": [
        "c7625a555f55d7ae49236cde551786c88f5a5ce1"
      ],
      "author": {
        "name": "Lai Jiangshan",
        "email": "laijs@cn.fujitsu.com",
        "time": "Thu Apr 02 15:17:08 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Fri Apr 10 12:44:46 2009 +0200"
      },
      "message": "tracing: fix splice return too large\n\nI got these from strace:\n\n splice(0x3, 0, 0x5, 0, 0x1000, 0x1) \u003d 12288\n splice(0x3, 0, 0x5, 0, 0x1000, 0x1) \u003d 12288\n splice(0x3, 0, 0x5, 0, 0x1000, 0x1) \u003d 12288\n splice(0x3, 0, 0x5, 0, 0x1000, 0x1) \u003d 16384\n splice(0x3, 0, 0x5, 0, 0x1000, 0x1) \u003d 8192\n splice(0x3, 0, 0x5, 0, 0x1000, 0x1) \u003d 8192\n splice(0x3, 0, 0x5, 0, 0x1000, 0x1) \u003d 8192\n\nI wanted to splice_read 4096 bytes, but it returns 8192 or larger.\n\nIt is because the return value of tracing_buffers_splice_read()\ndoes not include \"zero out any left over data\" bytes.\n\nBut tracing_buffers_read() includes these bytes, we make them\nconsistent.\n\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003csrostedt@redhat.com\u003e\nLKML-Reference: \u003c49D46674.9030804@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "c7625a555f55d7ae49236cde551786c88f5a5ce1",
      "tree": "4cca942d46412d708945f574ef4c4b87adf92d1d",
      "parents": [
        "ddd538f3e6a1a4bec2f6942f83a753263e6577b4"
      ],
      "author": {
        "name": "Lai Jiangshan",
        "email": "laijs@cn.fujitsu.com",
        "time": "Thu Apr 02 15:17:04 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Fri Apr 10 12:44:44 2009 +0200"
      },
      "message": "tracing: update file-\u003ef_pos when splice(2) it\n\nImpact: Cleanup\n\nThese two lines:\n\n\tif (unlikely(*ppos))\n\t\treturn -ESPIPE;\n\nin tracing_buffers_splice_read() are not needed, VFS layer\nhas disabled seek(2).\n\nWe remove these two lines, and then we can update file-\u003ef_pos.\n\nAnd tracing_buffers_read() updates file-\u003ef_pos, this fix\nmake tracing_buffers_splice_read() updates file-\u003ef_pos too.\n\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003csrostedt@redhat.com\u003e\nLKML-Reference: \u003c49D46670.4010503@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "ddd538f3e6a1a4bec2f6942f83a753263e6577b4",
      "tree": "b28047205b75d7e06ecf3eb0aca08c056ed4f51c",
      "parents": [
        "d1e7e02f30be672c6f6ee40908be83877a0d49d1"
      ],
      "author": {
        "name": "Lai Jiangshan",
        "email": "laijs@cn.fujitsu.com",
        "time": "Thu Apr 02 15:16:59 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Fri Apr 10 12:44:43 2009 +0200"
      },
      "message": "tracing: allocate page when needed\n\nImpact: Cleanup\n\nSometimes, we open trace_pipe_raw, but we don\u0027t read(2) it,\nwe just splice(2) it, thus, the page is not used.\n\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003csrostedt@redhat.com\u003e\nLKML-Reference: \u003c49D4666B.4010608@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "d1e7e02f30be672c6f6ee40908be83877a0d49d1",
      "tree": "24f958961d8de3ef0c1d16a407041d096fc1f098",
      "parents": [
        "62b8e680e61d3f48f2a12ee248ca03ea8f376926"
      ],
      "author": {
        "name": "Lai Jiangshan",
        "email": "laijs@cn.fujitsu.com",
        "time": "Thu Apr 02 15:16:56 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Fri Apr 10 12:44:42 2009 +0200"
      },
      "message": "tracing: disable seeking for trace_pipe_raw\n\nImpact: disable pread()\n\nWe set tracing_buffers_fops.llseek to no_llseek,\nbut we can still perform pread() to read this file.\n\nThat is not expected.\n\nThis fix uses nonseekable_open() to disable it.\n\ntracing_buffers_fops.llseek is still set to no_llseek,\nit mark this file is a \"non-seekable device\" and is used by\nsys_splice(). See also do_splice() or manual of splice(2):\n\nERRORS\n       EINVAL Target file system doesn\u0027t support  splicing;\n              neither  of the descriptors refers to a pipe;\n              or offset given for non-seekable device.\n\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003csrostedt@redhat.com\u003e\nLKML-Reference: \u003c49D46668.8030806@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "9eb85125ce218a8b8d9a7c982510388e227adbec",
      "tree": "320b87113d2c6b151f14e39d3a7e60174e19b0be",
      "parents": [
        "47788c58e66c050982241d9a05eb690daceb05a9"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Thu Apr 09 11:19:40 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Thu Apr 09 05:52:40 2009 +0200"
      },
      "message": "blktrace: pass the right pointer to kfree()\n\nImpact: fix kfree crash with non-standard act_mask string\n\nIf passing a string with leading white spaces to strstrip(),\nthe returned ptr !\u003d the original ptr.\n\nThis bug was introduced by me.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nLKML-Reference: \u003c49DD694C.8020902@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "47788c58e66c050982241d9a05eb690daceb05a9",
      "tree": "96b8658e36bad85d1e77345b7be1edb6fdb9e1d1",
      "parents": [
        "f876d346e3807647b1de411de6a86c44821896ca"
      ],
      "author": {
        "name": "Frederic Weisbecker",
        "email": "fweisbec@gmail.com",
        "time": "Wed Apr 08 20:40:59 2009 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Thu Apr 09 05:43:32 2009 +0200"
      },
      "message": "tracing/syscalls: use a dedicated file header\n\nImpact: fix build warnings and possibe compat misbehavior on IA64\n\nBuilding a kernel on ia64 might trigger these ugly build warnings:\n\nCC      arch/ia64/ia32/sys_ia32.o\nIn file included from arch/ia64/ia32/sys_ia32.c:55:\narch/ia64/ia32/ia32priv.h:290:1: warning: \"elf_check_arch\" redefined\nIn file included from include/linux/elf.h:7,\n                 from include/linux/module.h:14,\n                 from include/linux/ftrace.h:8,\n                 from include/linux/syscalls.h:68,\n                 from arch/ia64/ia32/sys_ia32.c:18:\narch/ia64/include/asm/elf.h:19:1: warning: this is the location of the previous definition\n[...]\n\nsys_ia32.c includes linux/syscalls.h which in turn includes linux/ftrace.h\nto import the syscalls tracing prototypes.\n\nBut including ftrace.h can pull too much things for a low level file,\nespecially on ia64 where the ia32 private headers conflict with higher\nlevel headers.\n\nNow we isolate the syscall tracing headers in their own lightweight file.\n\nReported-by: Tony Luck \u003ctony.luck@intel.com\u003e\nTested-by: Tony Luck \u003ctony.luck@intel.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nAcked-by: Tony Luck \u003ctony.luck@intel.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: \"Frank Ch. Eigler\" \u003cfche@redhat.com\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Michael Rubin \u003cmrubin@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Michael Davidson \u003cmd@google.com\u003e\nLKML-Reference: \u003c20090408184058.GB6017@nowhere\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "c93f216b5b985a12a18323e5ca2eb01db3d2f000",
      "tree": "45fa35b290005f8b241dd76b6342875b81432fc3",
      "parents": [
        "c61b79b6ef266890954213a701d8f6021d8c1289",
        "ab3c9c686e22ab264269337ce7b75d9760211198"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Tue Apr 07 14:10:10 2009 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Tue Apr 07 14:10:10 2009 -0700"
      },
      "message": "Merge branch \u0027tracing-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027tracing-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n  branch tracer, intel-iommu: fix build with CONFIG_BRANCH_TRACER\u003dy\n  branch tracer: Fix for enabling branch profiling makes sparse unusable\n  ftrace: Correct a text align for event format output\n  Update /debug/tracing/README\n  tracing/ftrace: alloc the started cpumask for the trace file\n  tracing, x86: remove duplicated #include\n  ftrace: Add check of sched_stopped for probe_sched_wakeup\n  function-graph: add proper initialization for init task\n  tracing/ftrace: fix missing include string.h\n  tracing: fix incorrect return type of ns2usecs()\n  tracing: remove CALLER_ADDR2 from wakeup tracer\n  blktrace: fix pdu_len when tracing packet command requests\n  blktrace: small cleanup in blk_msg_write()\n  blktrace: NUL-terminate user space messages\n  tracing: move scripts/trace/power.pl to scripts/tracing/power.pl\n"
    },
    {
      "commit": "dcef788eb9659b61a2110284fcce3ca6e63480d2",
      "tree": "b888723a3131d37afdae47e2d80a63796d19a6db",
      "parents": [
        "597af81537654097b67fd7a0c92775e66d4a86fe"
      ],
      "author": {
        "name": "Zhaolei",
        "email": "zhaolei@cn.fujitsu.com",
        "time": "Tue Mar 31 15:26:14 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Apr 07 14:43:09 2009 +0200"
      },
      "message": "ftrace: clean up enable logic for sched_switch\n\nUnify sched_switch and sched_wakeup\u0027s action to following logic:\nDo record_cmdline when start_cmdline_record() is called.\nStart tracing events when the tracer is started.\n\nSigned-off-by: Zhao Lei \u003czhaolei@cn.fujitsu.com\u003e\nLKML-Reference: \u003c49D1C596.5050203@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n"
    },
    {
      "commit": "597af81537654097b67fd7a0c92775e66d4a86fe",
      "tree": "e258b2ce6e6027609a3aa488b697e189872d9cf7",
      "parents": [
        "5452af664f6fba26b80eb2c8c4ceae2999d5cf56"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Fri Apr 03 15:24:12 2009 -0400"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Apr 07 14:43:08 2009 +0200"
      },
      "message": "function-graph: use int instead of atomic for ftrace_graph_active\n\nImpact: cleanup\n\nThe variable ftrace_graph_active is only modified under the\nftrace_lock mutex, thus an atomic is not necessary for modification.\n\nReported-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n"
    },
    {
      "commit": "5452af664f6fba26b80eb2c8c4ceae2999d5cf56",
      "tree": "08fb64bfc3242ad96b65719a55424db729585f17",
      "parents": [
        "a5dec5573f3c7e63f2f9b5852b9759ea342a5ff9"
      ],
      "author": {
        "name": "Frederic Weisbecker",
        "email": "fweisbec@gmail.com",
        "time": "Fri Mar 27 00:25:38 2009 +0100"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Apr 07 14:43:07 2009 +0200"
      },
      "message": "tracing/ftrace: factorize the tracing files creation\n\nImpact: cleanup\n\nMost of the tracing files creation follow the same pattern:\n\nret \u003d debugfs_create_file(...)\nif (!ret)\n\tpr_warning(\"Couldn\u0027t create ... entry\\n\")\n\nUnify it!\n\nReported-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c1238109938-11840-1-git-send-email-fweisbec@gmail.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n"
    },
    {
      "commit": "a5dec5573f3c7e63f2f9b5852b9759ea342a5ff9",
      "tree": "5d5cb96136fc304bc01bc9cfeb072a6ab86230be",
      "parents": [
        "86665c75da41889f92b774f31ea5a9a436f392a8"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Fri Mar 27 14:55:44 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Apr 07 14:43:06 2009 +0200"
      },
      "message": "tracing: use macros to denote usec and nsec per second\n\nImpact: cleanup\n\nUse USEC_PER_SEC and NSEC_PER_SEC instead of 1000000 and 1000000000.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c49CC7870.9000309@cn.fujitsu.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n"
    },
    {
      "commit": "86665c75da41889f92b774f31ea5a9a436f392a8",
      "tree": "94b003ab677a64b7d0a6dcca1f636bbbc2a187c9",
      "parents": [
        "93776a8ec746cf9d32c36e5a5b23d28d8be28826",
        "1bbe2a83ab68e5cf8c66c372c7cb3b51910c2cfe"
      ],
      "author": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Apr 07 14:41:14 2009 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Apr 07 14:41:17 2009 +0200"
      },
      "message": "Merge branch \u0027tracing/urgent\u0027 into tracing/ftrace\n"
    },
    {
      "commit": "1bbe2a83ab68e5cf8c66c372c7cb3b51910c2cfe",
      "tree": "6973301d436978f1cd2324927ee40b60ce91347d",
      "parents": [
        "bc2b6871c17b3aff79fb14e1a1c06c5f5a187f76"
      ],
      "author": {
        "name": "Zhaolei",
        "email": "zhaolei@cn.fujitsu.com",
        "time": "Fri Apr 03 18:24:46 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Apr 07 14:02:42 2009 +0200"
      },
      "message": "ftrace: Correct a text align for event format output\n\nIf we cat debugfs/tracing/events/ftrace/bprint/format, we\u0027ll see:\nname: bprint\nID: 6\nformat:\n\tfield:unsigned char common_type;\toffset:0;\tsize:1;\n\tfield:unsigned char common_flags;\toffset:1;\tsize:1;\n\tfield:unsigned char common_preempt_count;\toffset:2;\tsize:1;\n\tfield:int common_pid;\toffset:4;\tsize:4;\n\tfield:int common_tgid;\toffset:8;\tsize:4;\n\n\tfield:unsigned long ip;\toffset:12;\tsize:4;\n\tfield:char * fmt;\toffset:16;\tsize:4;\n\tfield: char buf;\toffset:20;\tsize:0;\n\nprint fmt: \"%08lx (%d) fmt:%p %s\"\n\nThere is an inconsistent blank before char buf.\n\nSigned-off-by: Zhao Lei \u003czhaolei@cn.fujitsu.com\u003e\nLKML-Reference: \u003c49D5E3EE.70201@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "bc2b6871c17b3aff79fb14e1a1c06c5f5a187f76",
      "tree": "2be32adf56b100f5bc565bbf641651a8067f8608",
      "parents": [
        "b0dfa978c7a1699fb3506fbfcba0b6a5c4bd17ae"
      ],
      "author": {
        "name": "Nikanth Karthikesan",
        "email": "knikanth@suse.de",
        "time": "Mon Mar 23 11:58:31 2009 +0530"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Apr 07 14:02:36 2009 +0200"
      },
      "message": "Update /debug/tracing/README\n\nSome of the tracers have been renamed, which was not updated in the in-kernel\nrun-time README file. Update it.\n\nSigned-off-by: Nikanth Karthikesan \u003cknikanth@suse.de\u003e\nLKML-Reference: \u003c200903231158.32151.knikanth@suse.de\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "b0dfa978c7a1699fb3506fbfcba0b6a5c4bd17ae",
      "tree": "4e52215e4d2f67c7063f813b9d788763d6f341a8",
      "parents": [
        "5ab8026a3016fbed5c73aa070d9f6989cf791099"
      ],
      "author": {
        "name": "Frederic Weisbecker",
        "email": "fweisbec@gmail.com",
        "time": "Wed Apr 01 22:53:08 2009 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Apr 07 14:02:03 2009 +0200"
      },
      "message": "tracing/ftrace: alloc the started cpumask for the trace file\n\nImpact: fix a crash while cat trace file\n\nCurrently we are using a cpumask to remind each cpu where a\ntrace occured. It lets us notice the user that a cpu just had\nits first trace.\n\nBut on latest -tip we have the following crash once we cat the trace\nfile:\n\nIP: [\u003cc0270c4a\u003e] print_trace_fmt+0x45/0xe7\n*pde \u003d 00000000\nOops: 0000 [#1] PREEMPT SMP\nlast sysfs file: /sys/class/net/eth0/carrier\nPid: 3897, comm: cat Not tainted (2.6.29-tip-02825-g0f22972-dirty #81)\nEIP: 0060:[\u003cc0270c4a\u003e] EFLAGS: 00010297 CPU: 0\nEIP is at print_trace_fmt+0x45/0xe7\nEAX: 00000000 EBX: 00000000 ECX: c12d9e98 EDX: ccdb7010\nESI: d31f4000 EDI: 00322401 EBP: d31f3f10 ESP: d31f3efc\nDS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068\nProcess cat (pid: 3897, ti\u003dd31f2000 task\u003dd3b3cf20 task.ti\u003dd31f2000)\nStack:\nd31f4080 ccdb7010 d31f4000 d691fe70 ccdb7010 d31f3f24 c0270e5c d31f4000\nd691fe70 d31f4000 d31f3f34 c02718e8 c12d9e98 d691fe70 d31f3f70 c02bfc33\n00001000 09130000 d3b46e00 d691fe98 00000000 00000079 00000001 00000000\nCall Trace:\n[\u003cc0270e5c\u003e] ? print_trace_line+0x170/0x17c\n[\u003cc02718e8\u003e] ? s_show+0xa7/0xbd\n[\u003cc02bfc33\u003e] ? seq_read+0x24a/0x327\n[\u003cc02bf9e9\u003e] ? seq_read+0x0/0x327\n[\u003cc02ab18b\u003e] ? vfs_read+0x86/0xe1\n[\u003cc02ab289\u003e] ? sys_read+0x40/0x65\n[\u003cc0202d8f\u003e] ? sysenter_do_call+0x12/0x3c\nCode: 00 00 00 89 45 ec f7 c7 00 20 00 00 89 55 f0 74 4e f6 86 98 10 00 00 02 74 45 8b 86 8c 10 00 00 8b 9e a8 10 00 00 e8 52 f3 ff ff \u003c0f\u003e a3 03 19 c0 85 c0 75 2b 8b 86 8c 10 00 00 8b 9e a8 10 00 00\nEIP: [\u003cc0270c4a\u003e] print_trace_fmt+0x45/0xe7 SS:ESP 0068:d31f3efc\nCR2: 0000000000000000\n---[ end trace aa9cf38e5ebed9dd ]---\n\nThis is because we alloc the iter-\u003estarted cpumask on tracing_pipe_open but\nnot on tracing_open.\n\nIt hadn\u0027t been noticed until now because we need to have ring buffer overruns\nto activate the starting of cpu buffer detection.\n\nAlso, we need a check to not print the messagge for the first trace on the file.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c1238619188-6109-1-git-send-email-fweisbec@gmail.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "8bcae09b93e7f96f700b6bb372c2b3f2b36636dc",
      "tree": "035ba58e3d2faaf639da6225b52c6d8428ac9307",
      "parents": [
        "5ac9f62267dc92c7735c642a5942d9e6c1190308"
      ],
      "author": {
        "name": "Zhaolei",
        "email": "zhaolei@cn.fujitsu.com",
        "time": "Tue Mar 31 15:24:51 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Apr 07 14:01:11 2009 +0200"
      },
      "message": "ftrace: Add check of sched_stopped for probe_sched_wakeup\n\nThe wakeup tracing in sched_switch does not stop when a user\ndisables tracing. This is because the probe_sched_wakeup() is missing\nthe check to prevent the wakeup from being traced.\n\nSigned-off-by: Zhao Lei \u003czhaolei@cn.fujitsu.com\u003e\nLKML-Reference: \u003c49D1C543.3010307@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "5f0c6c03c5fee91c02c696bc9bf4c0d41392abe7",
      "tree": "54d45e35314d28d835b85ed623a79c3b5501affa",
      "parents": [
        "cf8e3474654f20433aab9aa35826d43b5f245008"
      ],
      "author": {
        "name": "Frederic Weisbecker",
        "email": "fweisbec@gmail.com",
        "time": "Fri Mar 27 14:22:10 2009 +0100"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Apr 07 14:00:18 2009 +0200"
      },
      "message": "tracing/ftrace: fix missing include string.h\n\nBuilding a kernel with tracing can raise the following warning on\ntip/master:\n\nkernel/trace/trace.c:1249: error: implicit declaration of function \u0027vbin_printf\u0027\n\nWe are missing an include to string.h\n\nReported-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c1238160130-7437-1-git-send-email-fweisbec@gmail.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "cf8e3474654f20433aab9aa35826d43b5f245008",
      "tree": "bbb3e87ca324ae4192fd524c0777047ee075c5d9",
      "parents": [
        "301fd748e2c81e78e74edbc694a64caa7b95dda2"
      ],
      "author": {
        "name": "Lai Jiangshan",
        "email": "laijs@cn.fujitsu.com",
        "time": "Mon Mar 30 13:48:00 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Apr 07 13:59:23 2009 +0200"
      },
      "message": "tracing: fix incorrect return type of ns2usecs()\n\nImpact: fix time output bug in 32bits system\n\nns2usecs() returns \u0027long\u0027, it\u0027s incorrect.\n\n(In i386)\n...\n          \u003cidle\u003e-0     [000]   521.442100: _spin_lock \u003c-tick_do_update_jiffies64\n          \u003cidle\u003e-0     [000]   521.442101: do_timer \u003c-tick_do_update_jiffies64\n          \u003cidle\u003e-0     [000]   521.442102: update_wall_time \u003c-do_timer\n          \u003cidle\u003e-0     [000]   521.442102: update_xtime_cache \u003c-update_wall_time\n....\n(It always print the time less than 2200 seconds besides ...)\nBecause \u0027long\u0027 is 32bits in i386. ( (1\u003c\u003c31) useconds is about 2200 seconds)\n\n...\n          \u003cidle\u003e-0     [001] 4154502640.134759: rcu_bh_qsctr_inc \u003c-__do_softirq\n          \u003cidle\u003e-0     [001] 4154502640.134760: _local_bh_enable \u003c-__do_softirq\n          \u003cidle\u003e-0     [001] 4154502640.134761: idle_cpu \u003c-irq_exit\n...\n(very large value)\nBecause \u0027long\u0027 is a signed type and it is 32bits in i386.\n\nChanges in v2:\nreturn \u0027unsigned long long\u0027 instead of \u0027cycle_t\u0027\n\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nLKML-Reference: \u003c49D05D10.4030009@cn.fujitsu.com\u003e\nReported-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "301fd748e2c81e78e74edbc694a64caa7b95dda2",
      "tree": "563f5e7796b451fbefb49fa441f18374a4a761a1",
      "parents": [
        "a053958f073740219df1da596b42bfefdab634c4"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Fri Apr 03 11:12:23 2009 -0400"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Apr 07 13:58:54 2009 +0200"
      },
      "message": "tracing: remove CALLER_ADDR2 from wakeup tracer\n\nManeesh Soni was getting a crash when running the wakeup tracer.\nWe debugged it down to the recording of the function with the\nCALLER_ADDR2 macro.  This is used to get the location of the caller\nto schedule.\n\nBut the problem comes when schedule is called by assmebly. In the case\nthat Maneesh had, retint_careful would call schedule. But retint_careful\ndoes not set up a proper frame pointer. CALLER_ADDR2 is defined as\n__builtin_return_address(2). This produces the following assembly in\nthe wakeup tracer code.\n\n   mov    0x0(%rbp),%rcx  \u003c--- get the frame pointer of the caller\n   mov    %r14d,%r8d\n   mov    0xf2de8e(%rip),%rdi\n\n   mov    0x8(%rcx),%rsi  \u003c-- this is __builtin_return_address(1)\n   mov    0x28(%rdi,%rax,8),%rbx\n\n   mov    (%rcx),%rax  \u003c-- get the frame pointer of the caller\u0027s caller\n   mov    %r12,%rcx\n   mov    0x8(%rax),%rdx \u003c-- this is __builtin_return_address(2)\n\nAt the reading of 0x8(%rax) Maneesh\u0027s machine would take a fault.\nThe reason is that retint_careful did not set up the return address\nand the content of %rax here was zero.\n\nTo verify this, I sent Maneesh a patch to create a frame pointer\nin retint_careful. He ran the test again but this time he would take\nthe same type of fault from sysret_careful. The retint_careful was no\nlonger an issue, but there are other callers that still have issues.\n\nInstead of adding frame pointers for all callers to schedule (in possibly\nall archs), it is much safer to simply not use CALLER_ADDR2. This\nloses out on knowing what called schedule, but the function tracer\nwill help there if needed.\n\nReported-by: Maneesh Soni \u003cmaneesh@in.ibm.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "93776a8ec746cf9d32c36e5a5b23d28d8be28826",
      "tree": "6c472ae9f709246ee5268e1d71559d07839fb965",
      "parents": [
        "34886c8bc590f078d4c0b88f50d061326639198d",
        "d508afb437daee7cf07da085b635c44a4ebf9b38"
      ],
      "author": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Apr 07 13:47:33 2009 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Apr 07 13:47:45 2009 +0200"
      },
      "message": "Merge branch \u0027linus\u0027 into tracing/core\n\nMerge reason: update to upstream tracing facilities\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "a053958f073740219df1da596b42bfefdab634c4",
      "tree": "f681f808db3d5df5d7987199c8224031982bcf3f",
      "parents": [
        "4fafd5b03875612a24a5b17dac0c63217a65de42",
        "e2494e1b42ebac402324105d57646489d19e2b01"
      ],
      "author": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Apr 07 13:40:49 2009 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Apr 07 13:40:55 2009 +0200"
      },
      "message": "Merge branch \u0027tracing/blktrace-fixes\u0027 into tracing/urgent\n\nMerge reason: this used to be a tracing/blktrace-v2 devel topic still\n              cooking during the merge window - has propagated to fixes\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "12fe32e4f942ac5c71a4ab70b039fee65c0dc29d",
      "tree": "b0878e49e9fab1fd154fde1dd57057391831b668",
      "parents": [
        "a63856252d2112e7c452696037a86ceb12f47f80",
        "2121db74ba0fd2259f0e2265511684fadda9ac49"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Mon Apr 06 13:30:00 2009 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Mon Apr 06 13:30:00 2009 -0700"
      },
      "message": "Merge branch \u0027kmemtrace-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027kmemtrace-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n  kmemtrace: trace kfree() calls with NULL or zero-length objects\n  kmemtrace: small cleanups\n  kmemtrace: restore original tracing data binary format, improve ABI\n  kmemtrace: kmemtrace_alloc() must fill type_id\n  kmemtrace: use tracepoints\n  kmemtrace, rcu: don\u0027t include unnecessary headers, allow kmemtrace w/ tracepoints\n  kmemtrace, rcu: fix rcupreempt.c data structure dependencies\n  kmemtrace, rcu: fix rcu_tree_trace.c data structure dependencies\n  kmemtrace, rcu: fix linux/rcutree.h and linux/rcuclassic.h dependencies\n  kmemtrace, mm: fix slab.h dependency problem in mm/failslab.c\n  kmemtrace, kbuild: fix slab.h dependency problem in lib/decompress_unlzma.c\n  kmemtrace, kbuild: fix slab.h dependency problem in lib/decompress_bunzip2.c\n  kmemtrace, kbuild: fix slab.h dependency problem in lib/decompress_inflate.c\n  kmemtrace, squashfs: fix slab.h dependency problem in squasfs\n  kmemtrace, befs: fix slab.h dependency problem\n  kmemtrace, security: fix linux/key.h header file dependencies\n  kmemtrace, fs: fix linux/fdtable.h header file dependencies\n  kmemtrace, fs: uninline simple_transaction_set()\n  kmemtrace, fs, security: move alloc_secdata() and free_secdata() to linux/security.h\n"
    },
    {
      "commit": "714f83d5d9f7c785f622259dad1f4fad12d64664",
      "tree": "20563541ae438e11d686b4d629074eb002a481b7",
      "parents": [
        "8901e7ffc2fa78ede7ce9826dbad68a3a25dc2dc",
        "645dae969c3b8651c5bc7c54a1835ec03820f85f"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Sun Apr 05 11:04:19 2009 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Sun Apr 05 11:04:19 2009 -0700"
      },
      "message": "Merge branch \u0027tracing-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027tracing-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (413 commits)\n  tracing, net: fix net tree and tracing tree merge interaction\n  tracing, powerpc: fix powerpc tree and tracing tree interaction\n  ring-buffer: do not remove reader page from list on ring buffer free\n  function-graph: allow unregistering twice\n  trace: make argument \u0027mem\u0027 of trace_seq_putmem() const\n  tracing: add missing \u0027extern\u0027 keywords to trace_output.h\n  tracing: provide trace_seq_reserve()\n  blktrace: print out BLK_TN_MESSAGE properly\n  blktrace: extract duplidate code\n  blktrace: fix memory leak when freeing struct blk_io_trace\n  blktrace: fix blk_probes_ref chaos\n  blktrace: make classic output more classic\n  blktrace: fix off-by-one bug\n  blktrace: fix the original blktrace\n  blktrace: fix a race when creating blk_tree_root in debugfs\n  blktrace: fix timestamp in binary output\n  tracing, Text Edit Lock: cleanup\n  tracing: filter fix for TRACE_EVENT_FORMAT events\n  ftrace: Using FTRACE_WARN_ON() to check \"freed record\" in ftrace_release()\n  x86: kretprobe-booster interrupt emulation code fix\n  ...\n\nFix up trivial conflicts in\n arch/parisc/include/asm/ftrace.h\n include/linux/memory.h\n kernel/extable.c\n kernel/module.c\n"
    },
    {
      "commit": "811158b147a503fbdf9773224004ffd32002d1fe",
      "tree": "0a11dcfefe721bfc38ea9f1f4a238822dbae0dda",
      "parents": [
        "4e76c5ccd5ac9bd003467d3bb0f49b18572dd4cd",
        "b26e0ed4936b743b693a4cc1413561fa3e4eaf65"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Fri Apr 03 15:24:35 2009 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Fri Apr 03 15:24:35 2009 -0700"
      },
      "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (28 commits)\n  trivial: Update my email address\n  trivial: NULL noise: drivers/mtd/tests/mtd_*test.c\n  trivial: NULL noise: drivers/media/dvb/frontends/drx397xD_fw.h\n  trivial: Fix misspelling of \"Celsius\".\n  trivial: remove unused variable \u0027path\u0027 in alloc_file()\n  trivial: fix a pdlfush -\u003e pdflush typo in comment\n  trivial: jbd header comment typo fix for JBD_PARANOID_IOFAIL\n  trivial: wusb: Storage class should be before const qualifier\n  trivial: drivers/char/bsr.c: Storage class should be before const qualifier\n  trivial: h8300: Storage class should be before const qualifier\n  trivial: fix where cgroup documentation is not correctly referred to\n  trivial: Give the right path in Documentation example\n  trivial: MTD: remove EOL from MODULE_DESCRIPTION\n  trivial: Fix typo in bio_split()\u0027s documentation\n  trivial: PWM: fix of #endif comment\n  trivial: fix typos/grammar errors in Kconfig texts\n  trivial: Fix misspelling of firmware\n  trivial: cgroups: documentation typo and spelling corrections\n  trivial: Update contact info for Jochen Hein\n  trivial: fix typo \"resgister\" -\u003e \"register\"\n  ...\n"
    },
    {
      "commit": "e2494e1b42ebac402324105d57646489d19e2b01",
      "tree": "bd8d0beac5d8b8a7e6ff209c265b015a56fed1fd",
      "parents": [
        "7635b03adf3d7b84da7649b81efa91e6ebf11b85"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Thu Apr 02 13:43:26 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Fri Apr 03 15:29:26 2009 +0200"
      },
      "message": "blktrace: fix pdu_len when tracing packet command requests\n\nImpact: output all of packet commands - not just the first 4 / 8 bytes\n\nSince commit d7e3c3249ef23b4617393c69fe464765b4ff1645 (\"block: add\nlarge command support\"), struct request-\u003ecmd has been changed from\nunsinged char cmd[BLK_MAX_CDB] to unsigned char *cmd.\n\nv1 -\u003e v2: by: FUJITA Tomonori \u003cfujita.tomonori@lab.ntt.co.jp\u003e\n\n- make sure rq-\u003ecmd_len is always intialized, and then we can use\n  rq-\u003ecmd_len instead of BLK_MAX_CDB.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: FUJITA Tomonori \u003cfujita.tomonori@lab.ntt.co.jp\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nLKML-Reference: \u003c49D4507E.2060602@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "7635b03adf3d7b84da7649b81efa91e6ebf11b85",
      "tree": "072f7292c865162b7fb00fa33a68f0486f327563",
      "parents": [
        "a4b3ada83d06554d307dd54abdc62b2e5648264a"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Fri Apr 03 15:31:34 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Fri Apr 03 14:48:11 2009 +0200"
      },
      "message": "blktrace: small cleanup in blk_msg_write()\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: \"Alan D. Brunelle\" \u003calan.brunelle@hp.com\u003e\nCc: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nLKML-Reference: \u003c49D5BB56.7000807@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "a4b3ada83d06554d307dd54abdc62b2e5648264a",
      "tree": "70413a3343c8a40a8d3b22ec6d020ef806ca7a9b",
      "parents": [
        "18cea4591a98817697017bcb056a848bae1205df"
      ],
      "author": {
        "name": "Carl Henrik Lunde",
        "email": "chlunde@ping.uio.no",
        "time": "Fri Apr 03 14:27:15 2009 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Fri Apr 03 14:46:22 2009 +0200"
      },
      "message": "blktrace: NUL-terminate user space messages\n\nImpact: fix corrupted blkparse output\n\nMake sure messages from user space are NUL-terminated strings,\notherwise we could dump random memory to the block trace file.\n\nAdditionally, I\u0027ve limited the message to BLK_TN_MAX_MSG-1\ncharacters, because the last character would be stripped by\nvscnprintf anyway.\n\nSigned-off-by: Carl Henrik Lunde \u003cchlunde@ping.uio.no\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: \"Alan D. Brunelle\" \u003calan.brunelle@hp.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c20090403122714.GT5178@kernel.dk\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "c826e3cd0c931d60d548f2468122da570d145556",
      "tree": "fc5e89fd51bc81f66ac6d3a53349103a1cf2e264",
      "parents": [
        "42af9054c0eeed09ec58d13ec8bf52d225ebcfcc"
      ],
      "author": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Mon Mar 23 16:14:13 2009 +0100"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Fri Apr 03 12:23:09 2009 +0200"
      },
      "message": "kmemtrace: small cleanups\n\nCc: Eduard - Gabriel Munteanu \u003ceduard.munteanu@linux360.ro\u003e\nLKML-Reference: \u003c161be9ca8a27b432c4a6ab79f47788c4521652ae.1237813499.git.eduard.munteanu@linux360.ro\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "42af9054c0eeed09ec58d13ec8bf52d225ebcfcc",
      "tree": "6ae45d50bc1fb2b663b57cb0499374b018d7e204",
      "parents": [
        "da2635a9854423b4aa3a5f0e4e6efcc39ac99004"
      ],
      "author": {
        "name": "Eduard - Gabriel Munteanu",
        "email": "eduard.munteanu@linux360.ro",
        "time": "Mon Mar 23 15:12:26 2009 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Fri Apr 03 12:23:08 2009 +0200"
      },
      "message": "kmemtrace: restore original tracing data binary format, improve ABI\n\nWhen kmemtrace was ported to ftrace, the marker strings were taken as\nan indication of how the traced data was being exposed to the userspace.\nHowever, the actual format had been binary, not text.\n\nThis restores the original binary format, while also adding an origin CPU\nfield (since ftrace doesn\u0027t expose the data per-CPU to userspace), and\nre-adding the timestamp field. It also drops arch-independent field\nsizing where it didn\u0027t make sense, so pointers won\u0027t always be 64 bits\nwide like they used to.\n\nSigned-off-by: Eduard - Gabriel Munteanu \u003ceduard.munteanu@linux360.ro\u003e\nLKML-Reference: \u003c161be9ca8a27b432c4a6ab79f47788c4521652ae.1237813499.git.eduard.munteanu@linux360.ro\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "da2635a9854423b4aa3a5f0e4e6efcc39ac99004",
      "tree": "f05c3e67053f39156ebb91b41b650bd7972abe8f",
      "parents": [
        "ca2b84cb3c4a0d4d2143b46ec072cdff5d1b3b87"
      ],
      "author": {
        "name": "Eduard - Gabriel Munteanu",
        "email": "eduard.munteanu@linux360.ro",
        "time": "Mon Mar 23 15:12:25 2009 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Fri Apr 03 12:23:07 2009 +0200"
      },
      "message": "kmemtrace: kmemtrace_alloc() must fill type_id\n\nImpact: fix trace output\n\nkmemtrace_alloc() was not filling type_id, which allowed garbage to make\nit into tracing data.\n\nSigned-off-by: Eduard - Gabriel Munteanu \u003ceduard.munteanu@linux360.ro\u003e\nLKML-Reference: \u003c284dba2732a144849d5aa82258fe0de2ad8dcb0b.1237813499.git.eduard.munteanu@linux360.ro\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "ca2b84cb3c4a0d4d2143b46ec072cdff5d1b3b87",
      "tree": "7163bac040f11c444b24cab53c4a784df73fa4f3",
      "parents": [
        "ac44021fccd8f1f2b267b004f23a2e8d7ef05f7b"
      ],
      "author": {
        "name": "Eduard - Gabriel Munteanu",
        "email": "eduard.munteanu@linux360.ro",
        "time": "Mon Mar 23 15:12:24 2009 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Fri Apr 03 12:23:06 2009 +0200"
      },
      "message": "kmemtrace: use tracepoints\n\nkmemtrace now uses tracepoints instead of markers. We no longer need to\nuse format specifiers to pass arguments.\n\nSigned-off-by: Eduard - Gabriel Munteanu \u003ceduard.munteanu@linux360.ro\u003e\n[ folded: Use the new TP_PROTO and TP_ARGS to fix the build.     ]\n[ folded: fix build when CONFIG_KMEMTRACE is disabled.           ]\n[ folded: define tracepoints when CONFIG_TRACEPOINTS is enabled. ]\nSigned-off-by: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nLKML-Reference: \u003cae61c0f37156db8ec8dc0d5778018edde60a92e3.1237813499.git.eduard.munteanu@linux360.ro\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "2e572895bf3203e881356a4039ab0fa428ed2639",
      "tree": "8b49b2b7ea1f1a9ec31e82a999d7c257978f33ff",
      "parents": [
        "2aad1b76e6b0cc5a2e5d9b95a9f356ddddbfa8a9"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Mon Mar 30 14:03:19 2009 -0400"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Wed Apr 01 14:47:53 2009 +0200"
      },
      "message": "ring-buffer: do not remove reader page from list on ring buffer free\n\nImpact: prevent possible memory leak\n\nThe reader page of the ring buffer is special. Although it points\ninto the ring buffer, it is not part of the actual buffer. It is\na page used by the reader to swap with a page in the ring buffer.\nOnce the swap is made, the new reader page is again outside the\nbuffer.\n\nEven though the reader page points into the buffer, it is really\npointing to residual data. Note, this data is used by the reader.\n\n              reader page\n                  |\n                  v\n       (prev)   +---+    (next)\n     +----------|   |----------+\n     |          +---+          |\n     v                         v\n   +---+        +---+        +---+\n--\u003e|   |-------\u003e|   |-------\u003e|   |---\u003e\n\u003c--|   |\u003c-------|   |\u003c-------|   |\u003c---\n   +---+        +---+        +---+\n\n     ^            ^            ^\n      \\           |            /\n       ------- Buffer---------\n\nIf we perform a list_del_init() on the reader page we will actually remove\nthe last page the reader swapped with and not the reader page itself.\nThis will cause that page to not be freed, and thus is a memory leak.\n\nLuckily, the only user of the ring buffer so far is ftrace. And ftrace\nwill not free its ring buffer after it allocates it. There is no current\npossible memory leak. But once there are other users, or if ftrace\ndynamically creates and frees its ring buffer, then this would be a\nmemory leak.\n\nThis patch fixes the leak for future cases.\n\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "2aad1b76e6b0cc5a2e5d9b95a9f356ddddbfa8a9",
      "tree": "80ac6be0f1502079a50f8b1b4ffcc5e0586791e8",
      "parents": [
        "8b54e45b0005875f59cb8b1c44d429a161d5f245"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Mon Mar 30 11:11:28 2009 -0400"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Wed Apr 01 14:47:42 2009 +0200"
      },
      "message": "function-graph: allow unregistering twice\n\nImpact: fix to permanent disabling of function graph tracer\n\nThere should be nothing to prevent a tracer from unregistering a\nfunction graph callback more than once. This can simplify error paths.\n\nBut currently, the counter does not account for mulitple unregistering\nof the function graph callback. If it happens, the function graph\ntracer will be permanently disabled.\n\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "8b54e45b0005875f59cb8b1c44d429a161d5f245",
      "tree": "0e7c98418384f3f773d2046eea50f529e89f1cba",
      "parents": [
        "0a5d649018b151cb9331c213a843ac4a3e7e44ab",
        "9a8118baaeb0eaa148913bed77bf9c6335f6ca63",
        "b14b70a6a4e394c9630bcde17e07d3bcdcbca27e",
        "fee039a1d05c6e0f71b0fe270d847742a02d56c4",
        "18cea4591a98817697017bcb056a848bae1205df",
        "548c316137901cc81dea35e26362a9d5ba0b89b6"
      ],
      "author": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Mar 31 17:46:40 2009 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Mar 31 17:46:40 2009 +0200"
      },
      "message": "Merge branches \u0027tracing/docs\u0027, \u0027tracing/filters\u0027, \u0027tracing/ftrace\u0027, \u0027tracing/kprobes\u0027, \u0027tracing/blktrace-v2\u0027 and \u0027tracing/textedit\u0027 into tracing/core-v2\n"
    },
    {
      "commit": "b14b70a6a4e394c9630bcde17e07d3bcdcbca27e",
      "tree": "80a6582f54334e8379d58a573f708d60dfd680c0",
      "parents": [
        "f285901bb21355bb47106658ef14eeb6b8ed538f"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Fri Mar 27 10:21:00 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Mar 31 17:45:13 2009 +0200"
      },
      "message": "trace: make argument \u0027mem\u0027 of trace_seq_putmem() const\n\nImpact: fix build warning\n\nI passed a const value to trace_seq_putmem(), and I got compile warning.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "f285901bb21355bb47106658ef14eeb6b8ed538f",
      "tree": "ae79a9aaa14bdd1eca12e5ac62a25c858c2af029",
      "parents": [
        "bdd6df6af98ce7e70702edfb5fd5dbbd8d1b0453"
      ],
      "author": {
        "name": "Eduard - Gabriel Munteanu",
        "email": "eduard.munteanu@linux360.ro",
        "time": "Mon Mar 23 15:12:23 2009 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Mar 31 17:45:07 2009 +0200"
      },
      "message": "tracing: add missing \u0027extern\u0027 keywords to trace_output.h\n\nImpact: cleanup\n\nMany declarations within trace_output.h are missing the \u0027extern\u0027 keyword\nin an inconsistent manner. This adds \u0027extern\u0027 where it should be.\n\nSigned-off-by: Eduard - Gabriel Munteanu \u003ceduard.munteanu@linux360.ro\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "bdd6df6af98ce7e70702edfb5fd5dbbd8d1b0453",
      "tree": "d590d52a6837e0201abf8fd4461fa177d3658a5a",
      "parents": [
        "2a4efa42450762cbfa5c5712aa4cc9f06924c9fd"
      ],
      "author": {
        "name": "Eduard - Gabriel Munteanu",
        "email": "eduard.munteanu@linux360.ro",
        "time": "Mon Mar 23 15:12:22 2009 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Mar 31 17:45:02 2009 +0200"
      },
      "message": "tracing: provide trace_seq_reserve()\n\ntrace_seq_reserve() allows a caller to reserve space in a trace_seq and\nwrite directly into it. This makes it easier to export binary data to\nuserspace via the tracing interface, by simply filling in a struct.\n\nSigned-off-by: Eduard - Gabriel Munteanu \u003ceduard.munteanu@linux360.ro\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "18cea4591a98817697017bcb056a848bae1205df",
      "tree": "2a5d65642b5dfeefb8e688e2276ae0dbb2a12787",
      "parents": [
        "b6a4b0c3ad4c09c1d37b1040ac8e3ebd1016e10b"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Fri Mar 27 10:21:54 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Mar 31 17:29:11 2009 +0200"
      },
      "message": "blktrace: print out BLK_TN_MESSAGE properly\n\nImpact: improve ftrace plugin output\n\nBefore this patch:\n\n # cat trace\n         make-5383  [001]   741.240059:   8,7    P   N [make]\n __trace_note_message: cfq1074\n\n # echo 1 \u003e options/blk_classic\n # cat trace\n   8,7    1     0.692221252     0  C   W 130411392 + 1024 [0]\n Bad pc action 6361\n Bad pc action 283d\n\n # echo 0 \u003e options/blk_classic\n # echo bin \u003e trace_options\n # cat trace_pipe | blkparse -i -\n (can\u0027t parse messages generated by blk_add_trace_msg())\n\nAfter this patch:\n # cat trace\n      \u003cidle\u003e-0     [001]   187.600933:   8,7    C   W 145220224 + 8 [0]\n      \u003cidle\u003e-0     [001]   187.600946:   8,7    m   N cfq1076 complete\n\n # echo 1 \u003e options/blk_classic\n # cat trace\n   8,7    1     0.256378996   238  I   W 113190728 + 8 [pdflush]\n   8,7    1     0.256378998   238  m   N cfq1076 insert_request\n\n # echo 0 \u003e options/blk_classic\n # echo bin \u003e trace_options\n # cat trace_pipe | blkparse -i -\n  8,7    1        0    22.973250293     0  C   W 102770576 + 8 [0]\n  8,7    1        0    22.973259213     0  m   N cfq1076 complete\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "b6a4b0c3ad4c09c1d37b1040ac8e3ebd1016e10b",
      "tree": "95025e5a1b49056bdadf9bbb3e96417430d1830a",
      "parents": [
        "ad5dd5493a55e462796e42e50a49e76df76fdb05"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Fri Mar 27 10:21:23 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Mar 31 17:28:59 2009 +0200"
      },
      "message": "blktrace: extract duplidate code\n\nImpact: cleanup\n\nblk_trace_event_print() and blk_tracer_print_line() share most of the code.\n\n   text    data     bss     dec     hex filename\n   8605     393      12    9010    2332 kernel/trace/blktrace.o.orig\n   text    data     bss     dec     hex filename\n   8555     393      12    8960    2300 kernel/trace/blktrace.o\n\nThis patch also prepares for the next patch, that prints out BLK_TN_MESSAGE.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "ad5dd5493a55e462796e42e50a49e76df76fdb05",
      "tree": "3073af1836aaa7ba1d8df4cb6b2f287b31e27d72",
      "parents": [
        "17ba97e347bec9bbc47a0877c7a098708982129d"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Fri Mar 27 10:20:24 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Mar 31 17:27:58 2009 +0200"
      },
      "message": "blktrace: fix memory leak when freeing struct blk_io_trace\n\nImpact: fix mixed ioctl and ftrace-plugin blktrace use memory leak\n\nWhen mixing the use of ioctl-based blktrace and ftrace-based blktrace,\nwe can leak memory in this way:\n\n  # btrace /dev/sda \u003e /dev/null \u0026\n  # echo 0 \u003e /sys/block/sda/sda1/trace/enable\n\nnow we leak bt-\u003edropped_file, bt-\u003emsg_file, bt-\u003erchan...\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "17ba97e347bec9bbc47a0877c7a098708982129d",
      "tree": "b6a7472c354e4135f1ea47482d19ae277be65dee",
      "parents": [
        "35ac51bfe4c293b67ce9f85082ba0b9bc6123c40"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Fri Mar 27 10:20:09 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Mar 31 17:27:45 2009 +0200"
      },
      "message": "blktrace: fix blk_probes_ref chaos\n\nImpact: fix mixed ioctl and ftrace-plugin blktrace use refcount bugs\n\nioctl-based blktrace allocates bt and registers tracepoints when\nioctl(BLKTRACESETUP), and do all cleanups when ioctl(BLKTRACETEARDOWN).\n\nwhile ftrace-based blktrace allocates/frees bt when:\n  # echo 1/0 \u003e /sys/block/sda/sda1/trace/enable\n\nand registers/unregisters tracepoints when:\n  # echo blk/nop \u003e /debugfs/tracing/current_tracer\nor\n  # echo 1/0 \u003e /debugfs/tracing/tracing_enable\n\nThe separatation of allocation and registeration causes 2 problems:\n\n  1. current user-space blktrace still calls ioctl(TEARDOWN) when\n     ioctl(SETUP) failed:\n       # echo 1 \u003e /sys/block/sda/sda1/trace/enable\n       # blktrace /dev/sda\n         BLKTRACESETUP: Device or resource busy\n         ^C\n     and now blk_probes_ref \u003d\u003d -1\n\n  2. Another way to make blk_probes_ref \u003d\u003d -1:\n     # plugin sdb \u0026\u0026 mount sdb1\n     # echo 1 \u003e /sys/block/sdb/sdb1/trace/enable\n     # remove sdb\n\nThis patch does the allocation and registeration when writing\nsdaX/trace/enable.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "35ac51bfe4c293b67ce9f85082ba0b9bc6123c40",
      "tree": "0853820b03650725795308550e9a63fadac3d771",
      "parents": [
        "eb08f8eb0673d9c1e62b69ad1b41593e73c40467"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Fri Mar 27 10:19:46 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Mar 31 17:27:36 2009 +0200"
      },
      "message": "blktrace: make classic output more classic\n\nImpact: fix ftrace plugin timestamp output\n\nIn the classic user-space blktrace, the output timestamp is sec.nsec\nnot sec.usec.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "eb08f8eb0673d9c1e62b69ad1b41593e73c40467",
      "tree": "8243201d6f98e5e502fd0688c632e9650c1f973d",
      "parents": [
        "5554720482a631702146a959db22fe417740e0a6"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Tue Mar 24 16:05:27 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Mar 31 17:27:18 2009 +0200"
      },
      "message": "blktrace: fix off-by-one bug\n\n\u0027what\u0027 is used as the index of array what2act, so it can\u0027t \u003e\u003d the array size.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nAcked-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nAcked-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "5554720482a631702146a959db22fe417740e0a6",
      "tree": "fd7a304638269e3b3826faeb5dbc35f04af4deeb",
      "parents": [
        "b5230b56ee6caeb27cedb7753c0c319646383bb4"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Wed Mar 25 17:21:26 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Mar 31 17:27:08 2009 +0200"
      },
      "message": "blktrace: fix the original blktrace\n\nCurrently the original blktrace, which is using relay and is used via\nioctl, is broken. You can use ftrace to see the output of blktrace,\nbut user-space blktrace is unusable.\n\nIt\u0027s broken by \"blktrace: add ftrace plugin\"\n(c71a896154119f4ca9e89d6078f5f63ad60ef199)\n\n -\tif (unlikely(bt-\u003etrace_state !\u003d Blktrace_running))\n +\tif (unlikely(bt-\u003etrace_state !\u003d Blktrace_running || !blk_tracer_enabled))\n\t\treturn;\n\nWith this patch, both ioctl and ftrace can be used, but of course you\ncan\u0027t use both of them at the same time.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "b5230b56ee6caeb27cedb7753c0c319646383bb4",
      "tree": "a8cb9730ba9d89346d3bd959393e72c84b36ce84",
      "parents": [
        "6c051ce0307526adec32a847f0daa1af2124f0a9"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Wed Mar 25 17:19:33 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Mar 31 17:26:59 2009 +0200"
      },
      "message": "blktrace: fix a race when creating blk_tree_root in debugfs\n\nt1                                t2\n------                            ------\ndo_blk_trace_setup()              do_blk_trace_setup()\n  if (!blk_tree_root) {\n                                    if (!blk_tree_root)\n    blk_tree_root \u003d create_dir()\n                                      blk_tree_root \u003d create_dir();\n                                      (now blk_tree_root \u003d\u003d NULL)\n  ...\n  dir \u003d create_dir(name, blk_tree_root);\n\nDue to this race, t1 will create \u0027dir\u0027 in /debugfs but not /debugfs/block.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "6c051ce0307526adec32a847f0daa1af2124f0a9",
      "tree": "ce7317e18bf9bdd379e73782771761e4c24a156c",
      "parents": [
        "093419971e03362a00f499960557c119982ea09f"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Wed Mar 25 17:18:56 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Mar 31 17:26:47 2009 +0200"
      },
      "message": "blktrace: fix timestamp in binary output\n\nI found the timestamp is wrong:\n\n # echo bin \u003e trace_option\n # echo blk \u003e current_tracer\n # cat trace_pipe | blkparse -i -\n 8,0    0        0     0.000000000   504  A   W ...\n ...\n 8,7    1        0     0.008534097     0  C   R ...\n            (should be 8.534097xxx)\n\nuser-space blkparse expects the timestamp to be nanosecond.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "692105b8ac5bcd75dc65f6a8f10bdbd0f0f34dcf",
      "tree": "e079cea0948d250e5411befe0c5cca7c97bcf860",
      "parents": [
        "877d03105d04b2c13e241130277fa69c8d2564f0"
      ],
      "author": {
        "name": "Matt LaPlante",
        "email": "kernel1@cyberdogtech.com",
        "time": "Mon Jan 26 11:12:25 2009 +0100"
      },
      "committer": {
        "name": "Jiri Kosina",
        "email": "jkosina@suse.cz",
        "time": "Mon Mar 30 15:22:01 2009 +0200"
      },
      "message": "trivial: fix typos/grammar errors in Kconfig texts\n\nSigned-off-by: Matt LaPlante \u003ckernel1@cyberdogtech.com\u003e\nAcked-by: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nSigned-off-by: Jiri Kosina \u003cjkosina@suse.cz\u003e\n"
    },
    {
      "commit": "2a93a1f21480f3aa134fe0c48954b64b8a97ef25",
      "tree": "9b6cfce96ca3c5b51405a3da976719d9640ece70",
      "parents": [
        "b8d99832a582e0e164a1e209da445d2bb46d721b"
      ],
      "author": {
        "name": "Uwe Kleine-Koenig",
        "email": "ukleinek@strlen.de",
        "time": "Mon Jan 12 23:35:50 2009 +0100"
      },
      "committer": {
        "name": "Jiri Kosina",
        "email": "jkosina@suse.cz",
        "time": "Mon Mar 30 15:21:58 2009 +0200"
      },
      "message": "trivial: fix typo \"resgister\" -\u003e \"register\"\n\nSigned-off-by: Uwe Kleine-Koenig \u003cukleinek@strlen.de\u003e\nSigned-off-by: Jiri Kosina \u003cjkosina@suse.cz\u003e\n"
    },
    {
      "commit": "9a8118baaeb0eaa148913bed77bf9c6335f6ca63",
      "tree": "8e30ac89e7db4472478ec9a2bcd803fd0f22bad3",
      "parents": [
        "9f58a159d022c8f2533a27708aa267adf4f0e3ce"
      ],
      "author": {
        "name": "Tom Zanussi",
        "email": "tzanussi@gmail.com",
        "time": "Thu Mar 26 01:24:34 2009 -0500"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Thu Mar 26 09:13:14 2009 +0100"
      },
      "message": "tracing: filter fix for TRACE_EVENT_FORMAT events\n\nImpact: fix crash (hang) when using TRACE_EVENT_FORMAT filter files\n\nfilters are only hooked up to the tracepoint events defined using\nTRACE_EVENT but not the tracers that use TRACE_EVENT_FORMAT, such\nas ftrace.\n\nDo not display the filter files at all for TRACE_EVENT_FORMAT events\nfor the time being.\n\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: \u003d?ISO-8859-1?Q?Fr\u003dE9d\u003dE9ric?\u003d Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c1237878882.8339.61.camel@charm-linux\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "34886c8bc590f078d4c0b88f50d061326639198d",
      "tree": "5119877f332b554bb0c777cdb926e6a49f866d9b",
      "parents": [
        "318e0a73c9e41b9a17241829bcd0605a39b87cb9"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Wed Mar 25 21:00:47 2009 -0400"
      },
      "committer": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Wed Mar 25 21:03:36 2009 -0400"
      },
      "message": "tracing: add average time in function to function profiler\n\nShow the average time in the function (Time / Hit)\n\n  Function                               Hit    Time            Avg\n  --------                               ---    ----            ---\n  mwait_idle                              51    140326.6 us     2751.503 us\n  smp_apic_timer_interrupt                47    3517.735 us     74.845 us\n  schedule                                10    2738.754 us     273.875 us\n  __schedule                              10    2732.857 us     273.285 us\n  hrtimer_interrupt                       47    1896.104 us     40.342 us\n  irq_exit                                56    1711.833 us     30.568 us\n  __run_hrtimer                           47    1315.589 us     27.991 us\n  tick_sched_timer                        47    1138.690 us     24.227 us\n  do_softirq                              56    1116.829 us     19.943 us\n  __do_softirq                            56    1066.932 us     19.052 us\n  do_IRQ                                   9    926.153 us      102.905 us\n\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\n"
    },
    {
      "commit": "318e0a73c9e41b9a17241829bcd0605a39b87cb9",
      "tree": "230bd849953f60d12003fd5b9fecfd151ebb468b",
      "parents": [
        "fb9fb015e92123fa3a8e0c2e2fff491d4a56b470"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Wed Mar 25 20:06:34 2009 -0400"
      },
      "committer": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Wed Mar 25 21:03:17 2009 -0400"
      },
      "message": "tracing: remove on the fly allocator from function profiler\n\nImpact: safer code\n\nThe on the fly allocator for the function profiler was to save\nmemory. But at the expense of stability. Although it survived several\ntests, allocating from the function tracer is just too risky, just\nto save space.\n\nThis patch removes the allocator and simply allocates enough entries\nat start up.\n\nEach function gets a profiling structure of 40 bytes. With an average\nof 20K functions, and this is for each CPU, we have 800K per online\nCPU. This is not too bad, at least for non-embedded.\n\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\n"
    },
    {
      "commit": "2a4efa42450762cbfa5c5712aa4cc9f06924c9fd",
      "tree": "70af0a079541af99dec634fc89ce317dee2f1a33",
      "parents": [
        "759ee0915dd713361e72facb78b66600b5712d65"
      ],
      "author": {
        "name": "Zhaolei",
        "email": "zhaolei@cn.fujitsu.com",
        "time": "Wed Mar 25 12:06:05 2009 +0800"
      },
      "committer": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Wed Mar 25 17:45:36 2009 -0400"
      },
      "message": "ftrace: Using FTRACE_WARN_ON() to check \"freed record\" in ftrace_release()\n\n \"Because when we call ftrace_free_rec we change the rec-\u003eip to point to the\n  next record in the chain. Something is very wrong if rec-\u003eip \u003e\u003d s \u0026\u0026\n  rec-\u003eip \u003c e and the record is already free.\"\n\n \"Note, use FTRACE_WARN_ON() macro. This way it shuts down ftrace if it is\n  hit and helps to avoid further damage later.\"\n                   -- Steven Rostedt \u003crostedt@goodmis.org\u003e\n\nSigned-off-by: Zhao Lei \u003czhaolei@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\n"
    },
    {
      "commit": "2f63b840bc8a816ac879ee773b035cf3e433fae4",
      "tree": "4a97c31e1d4484c0cfded92c185ba46066665c8b",
      "parents": [
        "220ba351dfa57eca4bec5ce0098a276446a47958"
      ],
      "author": {
        "name": "Lai Jiangshan",
        "email": "laijs@cn.fujitsu.com",
        "time": "Wed Mar 25 16:59:18 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Wed Mar 25 18:32:35 2009 +0100"
      },
      "message": "trace_workqueues: fix empty line\u0027s output\n\nEmpty lines separate cpus stat. After previous\nfix(trace_stat: keep original order) applied, the empty lines\nare displayed at incorrect position.\n\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nAcked-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c49C9F266.2060706@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "220ba351dfa57eca4bec5ce0098a276446a47958",
      "tree": "e0990d566ef8c19a291ad871caaf94fdd3d57008",
      "parents": [
        "e6f489013b985b58d096a3091ece0ed579367232"
      ],
      "author": {
        "name": "Lai Jiangshan",
        "email": "laijs@cn.fujitsu.com",
        "time": "Wed Mar 25 16:58:39 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Wed Mar 25 18:32:34 2009 +0100"
      },
      "message": "trace_stat: keep original order\n\nImpact: make trace_stat files show items with the original order\n\ntrace_stat tracer reverse the items, it makes the output\nlooks a little ugly.\n\nExample, when we read trace_stat/workqueues, we get cpu#7\u0027s stat.\nat first, and then cpu#6... cpu#0.\n\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nAcked-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c49C9F23F.5040307@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "e6f489013b985b58d096a3091ece0ed579367232",
      "tree": "598baf56ceb47c256338ae4934937d2e6e111181",
      "parents": [
        "ee000b7f9fe429d2470c674ccec8d344f6789e0d"
      ],
      "author": {
        "name": "Lai Jiangshan",
        "email": "laijs@cn.fujitsu.com",
        "time": "Wed Mar 25 16:27:17 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Wed Mar 25 18:32:34 2009 +0100"
      },
      "message": "trace_stat: don\u0027t call seq_printf() in seq_operation-\u003estart()\n\nImpact: Fix incorrect way using seq_file\u0027s API\n\nUse SEQ_START_TOKEN instead of calling -\u003estat_headers()\nint seq_operation-\u003estart().\n\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nAcked-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\nCc: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nLKML-Reference: \u003c49C9EAE5.5070202@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "fb9fb015e92123fa3a8e0c2e2fff491d4a56b470",
      "tree": "8fb33ea3001a1450fbd260c6928df22c543c614a",
      "parents": [
        "a2a16d6a3156ef7309ca7328a20c35df9418e670"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Wed Mar 25 13:26:41 2009 -0400"
      },
      "committer": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Wed Mar 25 13:26:41 2009 -0400"
      },
      "message": "tracing: clean up tracing profiler\n\nIngo Molnar suggested clean ups for the profiling code. This patch\nmakes those updates.\n\nReported-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\n"
    },
    {
      "commit": "a2a16d6a3156ef7309ca7328a20c35df9418e670",
      "tree": "8f21d9c56eb34f9bd1057929661c96d04329dd69",
      "parents": [
        "cafb168a1c92e4c9e1731fe3d666c39611762c49"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Tue Mar 24 23:17:58 2009 -0400"
      },
      "committer": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Tue Mar 24 23:41:11 2009 -0400"
      },
      "message": "function-graph: add option to calculate graph time or not\n\ngraph time is the time that a function is executing another function.\nThus if function A calls B, if graph-time is set, then the time for\nA includes B. This is the default behavior. But if graph-time is off,\nthen the time spent executing B is subtracted from A.\n\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\n"
    },
    {
      "commit": "cafb168a1c92e4c9e1731fe3d666c39611762c49",
      "tree": "536d4bb6d33499d746ffb674126d2983e5d6e361",
      "parents": [
        "0706f1c48ca8a7ab478090b4e38f2e578ae2bfe0"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Tue Mar 24 20:50:39 2009 -0400"
      },
      "committer": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Tue Mar 24 23:41:10 2009 -0400"
      },
      "message": "tracing: make the function profiler per cpu\n\nImpact: speed enhancement\n\nBy making the function profiler record in per cpu data we not only\nget better readings, avoid races, we also do not have to take any\nlocks.\n\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\n"
    },
    {
      "commit": "0706f1c48ca8a7ab478090b4e38f2e578ae2bfe0",
      "tree": "26b79090f8e7e62796bb871ff089d04799919855",
      "parents": [
        "493762fc534c71d11d489f872c4b4a2c61173668"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Mon Mar 23 23:12:58 2009 -0400"
      },
      "committer": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Tue Mar 24 23:41:09 2009 -0400"
      },
      "message": "tracing: adding function timings to function profiler\n\nIf the function graph trace is enabled, the function profiler will\nuse it to take the timing of the functions.\n\n cat /debug/tracing/trace_stat/functions\n\n  Function                               Hit    Time\n  --------                               ---    ----\n  mwait_idle                             127    183028.4 us\n  schedule                                26    151997.7 us\n  __schedule                              31    151975.1 us\n  sys_wait4                                2    74080.53 us\n  do_wait                                  2    74077.80 us\n  sys_newlstat                           138    39929.16 us\n  do_path_lookup                         179    39845.79 us\n  vfs_lstat_fd                           138    39761.97 us\n  user_path_at                           153    39469.58 us\n  path_walk                              179    39435.76 us\n  __link_path_walk                       189    39143.73 us\n[...]\n\nNote the times are skewed due to the function graph tracer not taking\ninto account schedules.\n\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\n"
    },
    {
      "commit": "493762fc534c71d11d489f872c4b4a2c61173668",
      "tree": "90f308853f26ad5334717d53b18680957aab5ff4",
      "parents": [
        "bac429f037f1a51a74d62bad6d1518c3be065df3"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Mon Mar 23 17:12:36 2009 -0400"
      },
      "committer": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Tue Mar 24 23:41:06 2009 -0400"
      },
      "message": "tracing: move function profiler data out of function struct\n\nImpact: reduce size of memory in function profiler\n\nThe function profiler originally introduces its counters into the\nfunction records itself. There is 20 thousand different functions on\na normal system, and that is adding 20 thousand counters for profiling\nevent when not needed.\n\nA normal run of the profiler yields only a couple of thousand functions\nexecuted, depending on what is being profiled. This means we have around\n18 thousand useless counters.\n\nThis patch rectifies this by moving the data out of the function\nrecords used by dynamic ftrace. Data is preallocated to hold the functions\nwhen the profiling begins. Checks are made during profiling to see if\nmore recorcds should be allocated, and they are allocated if it is safe\nto do so.\n\nThis also removes the dependency from using dynamic ftrace, and also\nremoves the overhead by having it enabled.\n\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\n"
    },
    {
      "commit": "bac429f037f1a51a74d62bad6d1518c3be065df3",
      "tree": "40c3dbdd0f6c097c3c9a1087d219dd8632bd7b74",
      "parents": [
        "425480081e936d8725f0d44b8829d699bf088c6b"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Fri Mar 20 12:50:56 2009 -0400"
      },
      "committer": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Tue Mar 24 23:40:00 2009 -0400"
      },
      "message": "tracing: add function profiler\n\nImpact: new profiling feature\n\nThis patch adds a function profiler. In debugfs/tracing/ two new\nfiles are created.\n\n  function_profile_enabled  - to enable or disable profiling\n\n  trace_stat/functions   - the profiled functions.\n\nFor example:\n\n  echo 1 \u003e /debugfs/tracing/function_profile_enabled\n  ./hackbench 50\n  echo 0 \u003e /debugfs/tracing/function_profile_enabled\n\nyields:\n\n  cat /debugfs/tracing/trace_stat/functions\n\n  Function                               Hit\n  --------                               ---\n  _spin_lock                        10106442\n  _spin_unlock                      10097492\n  kfree                              6013704\n  _spin_unlock_irqrestore            4423941\n  _spin_lock_irqsave                 4406825\n  __phys_addr                        4181686\n  __slab_free                        4038222\n  dput                               4030130\n  path_put                           4023387\n  unroll_tree_refs                   4019532\n[...]\n\nThe most hit functions are listed first. Functions that are not\nhit are not listed.\n\nThis feature depends on and uses dynamic function tracing. When the\nfunction profiling is disabled, no overhead occurs. But it still\ntakes up around 300KB to hold the data, thus it is not recomended\nto keep it enabled for systems low on memory.\n\nWhen a \u00271\u0027 is echoed into the function_profile_enabled file, the\ncounters for is function is reset back to zero. Thus you can see what\nfunctions are hit most by different programs.\n\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\n"
    },
    {
      "commit": "425480081e936d8725f0d44b8829d699bf088c6b",
      "tree": "214bd7f813fde6b71f624b85756b27ec5078c3fd",
      "parents": [
        "ee000b7f9fe429d2470c674ccec8d344f6789e0d"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Tue Mar 24 13:38:36 2009 -0400"
      },
      "committer": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Tue Mar 24 23:22:58 2009 -0400"
      },
      "message": "tracing: add handler to trace_stat\n\nCurrently, if a trace_stat user wants a handle to some private data,\nthe trace_stat infrastructure does not supply a way to do that.\n\nThis patch passes the trace_stat structure to the start function of\nthe trace_stat code.\n\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\n"
    },
    {
      "commit": "ee000b7f9fe429d2470c674ccec8d344f6789e0d",
      "tree": "35b480a5e5fb90d5a414d942bcb541e7887334d6",
      "parents": [
        "cc59c9e8d0165c632fd056c4a23e36f917507fb4"
      ],
      "author": {
        "name": "Lai Jiangshan",
        "email": "laijs@cn.fujitsu.com",
        "time": "Tue Mar 24 13:38:06 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Mar 24 16:43:12 2009 +0100"
      },
      "message": "tracing: use union for multi-usages field\n\nImpact: cleanup\n\nstruct dyn_ftrace::ip has different usages in his lifecycle,\nwe use union for it. And also for struct dyn_ftrace::flags.\n\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003csrostedt@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c49C871BE.3080405@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    }
  ],
  "next": "cc59c9e8d0165c632fd056c4a23e36f917507fb4"
}