)]}'
{
  "log": [
    {
      "commit": "43c1266ce4dc06bfd236cec31e11e9ecd69c0bef",
      "tree": "40a86739ca4c36200f447f655b01c57cfe646e26",
      "parents": [
        "b8c7f1dc5ca4e0d10709182233cdab932cef593d",
        "57c0c15b5244320065374ad2c54f4fbec77a6428"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Mon Sep 21 09:15:07 2009 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Mon Sep 21 09:15:07 2009 -0700"
      },
      "message": "Merge branch \u0027perfcounters-rename-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perfcounters-rename-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n  perf: Tidy up after the big rename\n  perf: Do the big rename: Performance Counters -\u003e Performance Events\n  perf_counter: Rename \u0027event\u0027 to event_id/hw_event\n  perf_counter: Rename list_entry -\u003e group_entry, counter_list -\u003e group_list\n\nManually resolved some fairly trivial conflicts with the tracing tree in\ninclude/trace/ftrace.h and kernel/trace/trace_syscalls.c.\n"
    },
    {
      "commit": "cdd6c482c9ff9c55475ee7392ec8f672eddb7be6",
      "tree": "81f98a3ab46c589792057fe2392c1e10f8ad7893",
      "parents": [
        "dfc65094d0313cc48969fa60bcf33d693aeb05a7"
      ],
      "author": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Mon Sep 21 12:02:48 2009 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Mon Sep 21 14:28:04 2009 +0200"
      },
      "message": "perf: Do the big rename: Performance Counters -\u003e Performance Events\n\nBye-bye Performance Counters, welcome Performance Events!\n\nIn the past few months the perfcounters subsystem has grown out its\ninitial role of counting hardware events, and has become (and is\nbecoming) a much broader generic event enumeration, reporting, logging,\nmonitoring, analysis facility.\n\nNaming its core object \u0027perf_counter\u0027 and naming the subsystem\n\u0027perfcounters\u0027 has become more and more of a misnomer. With pending\ncode like hw-breakpoints support the \u0027counter\u0027 name is less and\nless appropriate.\n\nAll in one, we\u0027ve decided to rename the subsystem to \u0027performance\nevents\u0027 and to propagate this rename through all fields, variables\nand API names. (in an ABI compatible fashion)\n\nThe word \u0027event\u0027 is also a bit shorter than \u0027counter\u0027 - which makes\nit slightly more convenient to write/handle as well.\n\nThanks goes to Stephane Eranian who first observed this misnomer and\nsuggested a rename.\n\nUser-space tooling and ABI compatibility is not affected - this patch\nshould be function-invariant. (Also, defconfigs were not touched to\nkeep the size down.)\n\nThis patch has been generated via the following script:\n\n  FILES\u003d$(find * -type f | grep -vE \u0027oprofile|[^K]config\u0027)\n\n  sed -i \\\n    -e \u0027s/PERF_EVENT_/PERF_RECORD_/g\u0027 \\\n    -e \u0027s/PERF_COUNTER/PERF_EVENT/g\u0027 \\\n    -e \u0027s/perf_counter/perf_event/g\u0027 \\\n    -e \u0027s/nb_counters/nb_events/g\u0027 \\\n    -e \u0027s/swcounter/swevent/g\u0027 \\\n    -e \u0027s/tpcounter_event/tp_event/g\u0027 \\\n    $FILES\n\n  for N in $(find . -name perf_counter.[ch]); do\n    M\u003d$(echo $N | sed \u0027s/perf_counter/perf_event/g\u0027)\n    mv $N $M\n  done\n\n  FILES\u003d$(find . -name perf_event.*)\n\n  sed -i \\\n    -e \u0027s/COUNTER_MASK/REG_MASK/g\u0027 \\\n    -e \u0027s/COUNTER/EVENT/g\u0027 \\\n    -e \u0027s/\\\u003cevent\\\u003e/event_id/g\u0027 \\\n    -e \u0027s/counter/event/g\u0027 \\\n    -e \u0027s/Counter/Event/g\u0027 \\\n    $FILES\n\n... to keep it as correct as possible. This script can also be\nused by anyone who has pending perfcounters patches - it converts\na Linux kernel tree over to the new naming. We tried to time this\nchange to the point in time where the amount of pending patches\nis the smallest: the end of the merge window.\n\nNamespace clashes were fixed up in a preparatory patch - and some\nstylistic fallout will be fixed up in a subsequent patch.\n\n( NOTE: \u0027counters\u0027 are still the proper terminology when we deal\n  with hardware registers - and these sed scripts are a bit\n  over-eager in renaming them. I\u0027ve undone some of that, but\n  in case there\u0027s something left where \u0027counter\u0027 would be\n  better than \u0027event\u0027 we can undo that on an individual basis\n  instead of touching an otherwise nicely automated patch. )\n\nSuggested-by: Stephane Eranian \u003ceranian@google.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Paul Mackerras \u003cpaulus@samba.org\u003e\nReviewed-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: David Howells \u003cdhowells@redhat.com\u003e\nCc: Kyle McMartin \u003ckyle@mcmartin.ca\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: \"H. Peter Anvin\" \u003chpa@zytor.com\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "20ab4425a77a1f34028cc6ce57053c22c184ba5f",
      "tree": "ca821b19593c3821fa13a520201537ad35e4c98d",
      "parents": [
        "e5e25cf47b0bdd1f7e9b8bb6368ee48e16de0c87"
      ],
      "author": {
        "name": "Frederic Weisbecker",
        "email": "fweisbec@gmail.com",
        "time": "Fri Sep 18 06:10:28 2009 +0200"
      },
      "committer": {
        "name": "Frederic Weisbecker",
        "email": "fweisbec@gmail.com",
        "time": "Fri Sep 18 07:25:44 2009 +0200"
      },
      "message": "tracing: Allocate the ftrace event profile buffer dynamically\n\nCurrently the trace event profile buffer is allocated in the stack. But\nthis may be too much for the stack, as the events can have large\nstatically defined field size and can also grow with dynamic arrays.\n\nAllocate two per cpu buffer for all profiled events. The first cpu\nbuffer is used to host every non-nmi context traces. It is protected\nby disabling the interrupts while writing and committing the trace.\n\nThe second buffer is reserved for nmi. So that there is no race between\nthem and the first buffer.\n\nThe whole write/commit section is rcu protected because we release\nthese buffers while deactivating the last profiling trace event.\n\nv2: Move the buffers from trace_event to be global, as pointed by\n    Steven Rostedt.\n\nv3: Fix the syscall events to handle the profiling buffer races\n    by disabling interrupts, now that the buffers are globals.\n\nSuggested-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "e5e25cf47b0bdd1f7e9b8bb6368ee48e16de0c87",
      "tree": "043e6215359853812130324a24e3d03511b41e2b",
      "parents": [
        "0efb4d20723d58edbad29d1ff98a86b631adb5e6"
      ],
      "author": {
        "name": "Frederic Weisbecker",
        "email": "fweisbec@gmail.com",
        "time": "Fri Sep 18 00:54:43 2009 +0200"
      },
      "committer": {
        "name": "Frederic Weisbecker",
        "email": "fweisbec@gmail.com",
        "time": "Fri Sep 18 06:14:32 2009 +0200"
      },
      "message": "tracing: Factorize the events profile accounting\n\nFactorize the events enabling accounting in a common tracing core\nhelper. This reduces the size of the profile_enable() and\nprofile_disable() callbacks for each trace events.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nAcked-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nAcked-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "a48f494e1dbdcf4fb7c02100ae3208c4c1daecbf",
      "tree": "08c56167c5a3152c10c006e0aa67fe19f6e66831",
      "parents": [
        "ec827c7ece8901044e6b3f92aeea489be9e1bcf7"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Mon Sep 14 11:18:02 2009 -0400"
      },
      "committer": {
        "name": "Steven Rostedt",
        "email": "rostedt@goodmis.org",
        "time": "Mon Sep 14 11:18:02 2009 -0400"
      },
      "message": "tracing: have TRACE_EVENT macro use __flags to not shadow parameter\n\nThe generated functions of TRACE_EVENT uses \"flags\" in one of the\nsub macros which shadows a parameter in the outside macro.\n\nSimple fix is to make the submacro use __flags instead.\n\nDiscovered by sparse.\n\nReported-by: Jaswinder Singh Rajput \u003cjaswinder@kernel.org\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n"
    },
    {
      "commit": "ec827c7ece8901044e6b3f92aeea489be9e1bcf7",
      "tree": "e856e477b5ca2dfa2073709856d8493b201ae377",
      "parents": [
        "08a408161749d2406f94f4e3d47cfdbc826ad1cc"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Mon Sep 14 10:50:23 2009 -0400"
      },
      "committer": {
        "name": "Steven Rostedt",
        "email": "rostedt@goodmis.org",
        "time": "Mon Sep 14 10:50:23 2009 -0400"
      },
      "message": "tracing: add static to generated TRACE_EVENT functions\n\nSome of the generated functions used in the TRACE_EVENT macros are\nnot declared static, but they are not global.\n\nDiscovered by sparse.\n\nReported-by: Jaswinder Singh Rajput \u003cjaswinder@kernel.org\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n"
    },
    {
      "commit": "e77405ad80f53966524b5c31244e13fbbbecbd84",
      "tree": "65c05f9e1573e9958e52bb72655e00c8592aacd2",
      "parents": [
        "f633903af2ceb0cec07d45e499a072b6593d0ed1"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Wed Sep 02 14:17:06 2009 -0400"
      },
      "committer": {
        "name": "Steven Rostedt",
        "email": "rostedt@goodmis.org",
        "time": "Fri Sep 04 18:59:39 2009 -0400"
      },
      "message": "tracing: pass around ring buffer instead of tracer\n\nThe latency tracers (irqsoff and wakeup) can swap trace buffers\non the fly. If an event is happening and has reserved data on one of\nthe buffers, and the latency tracer swaps the global buffer with the\nmax buffer, the result is that the event may commit the data to the\nwrong buffer.\n\nThis patch changes the API to the trace recording to be recieve the\nbuffer that was used to reserve a commit. Then this buffer can be passed\nin to the commit.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n"
    },
    {
      "commit": "8e254c1d183f0225ad21f9049641529e56cce4da",
      "tree": "5b559726a38b60c6bc92b3c8667c676db1038701",
      "parents": [
        "73222acf966792c7fda219724af963339be32e62"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Mon Aug 31 16:49:41 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Mon Aug 31 10:58:08 2009 +0200"
      },
      "message": "tracing/filters: Defer pred allocation\n\ninit_preds() allocates about 5392 bytes of memory (on x86_32) for\na TRACE_EVENT. With my config, at system boot total memory occupied\nis:\n\n\t5392 * (642 + 15) \u003d\u003d 3459KB\n\n642 \u003d\u003d cat available_events | wc -l\n15 \u003d\u003d number of dirs in events/ftrace\n\nThat\u0027s quite a lot, so we\u0027d better defer memory allocation util\nit\u0027s needed, that\u0027s when filter is used.\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: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nLKML-Reference: \u003c4A9B8EA5.6020700@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "0dd7b74787eaf7858c6c573353a83c3e2766e674",
      "tree": "110fd833b620a60e34aa00aaf316f8fd80ee7f86",
      "parents": [
        "66c6e29f24a50173fc1e761c3e2483c8d64e3b1a"
      ],
      "author": {
        "name": "Frederic Weisbecker",
        "email": "fweisbec@gmail.com",
        "time": "Fri Aug 28 00:50:06 2009 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Fri Aug 28 13:55:04 2009 +0200"
      },
      "message": "tracing: Fix double CPP substitution in TRACE_EVENT_FN\n\nTRACE_EVENT_FN relays on TRACE_EVENT by reprocessing its parameters\ninto the ftrace events CPP macro. This leads to a double substitution\nin some cases.\n\nFor example, a bad consequence is a format always prefixed by\n\"%s, %s\\n\" for every TRACE_EVENT_FN based events.\n\nEg:\n\tcat /debug/tracing/events/syscalls/sys_enter/format\n\t[...]\n\tprint fmt: \"%s, %s\\n\", \"\\\"NR %ld (%lx, %lx, %lx, %lx, %lx, %lx)\\\"\",\\\n\t\"REC-\u003eid, REC-\u003eargs[0], REC-\u003eargs[1], REC-\u003eargs[2], REC-\u003eargs[3],\\\n\tREC-\u003eargs[4], REC-\u003eargs[5]\"\n\nThis creates a failure in post-processing tools such as perf trace or\ntrace-cmd.\n\nThen drop this double substitution and replace it by a new __cpparg()\nmacro that relays CPP arguments containing commas.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Josh Stone \u003cjistone@redhat.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003csrostedt@redhat.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nLKML-Reference: \u003c1251413406-6704-1-git-send-email-fweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "35dce1a99d010f3d738af4ce1b9b77302fdfe69c",
      "tree": "e34a37de965a79a2ae301de4d0557f500111dde6",
      "parents": [
        "7cb2e3ee2aeec5b83ecadba929a2dc575dd4008f",
        "1c569f0264ea629c10bbab471dd0626ce4d3f19f"
      ],
      "author": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Wed Aug 26 08:29:02 2009 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Wed Aug 26 08:29:02 2009 +0200"
      },
      "message": "Merge branch \u0027tracing/core\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing into tracing/core\n\nConflicts:\n\tinclude/linux/tracepoint.h\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "43b51ead3f752a3935116e5b1a94254b8573734f",
      "tree": "5d9e88635c85ba7b1d273dea3c4d8d96e5000154",
      "parents": [
        "aa38e9fc3ea804290efd3a39316d7f7e6c945800"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Fri Aug 07 10:33:22 2009 +0800"
      },
      "committer": {
        "name": "Steven Rostedt",
        "email": "rostedt@goodmis.org",
        "time": "Wed Aug 26 00:32:06 2009 -0400"
      },
      "message": "tracing/filters: Add __field_ext() to TRACE_EVENT\n\nAdd __field_ext(), so a field can be assigned to a specific\nfilter_type, which matches a corresponding filter function.\n\nFor example, a later patch will allow this:\n\t__field_ext(const char *, str, FILTER_PTR_STR);\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4A7B9272.6050709@cn.fujitsu.com\u003e\n\n[\n  Fixed a -1 to FILTER_OTHER\n  Forward ported to latest kernel.\n]\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n"
    },
    {
      "commit": "97419875865859fd2403e66266c02ce028e2f5ab",
      "tree": "7df6e6df767e9c8ff538a50bcae17638a1c8da99",
      "parents": [
        "3d27d8cb34fc156beb86de2338ca4029873a5cc6"
      ],
      "author": {
        "name": "Josh Stone",
        "email": "jistone@redhat.com",
        "time": "Mon Aug 24 14:43:13 2009 -0700"
      },
      "committer": {
        "name": "Frederic Weisbecker",
        "email": "fweisbec@gmail.com",
        "time": "Wed Aug 26 00:36:41 2009 +0200"
      },
      "message": "tracing: Move tracepoint callbacks from declaration to definition\n\nIt\u0027s not strictly correct for the tracepoint reg/unreg callbacks to\noccur when a client is hooking up, because the actual tracepoint may not\nbe present yet.  This happens to be fine for syscall, since that\u0027s in\nthe core kernel, but it would cause problems for tracepoints defined in\na module that hasn\u0027t been loaded yet.  It also means the reg/unreg has\nto be EXPORTed for any modules to use the tracepoint (as in SystemTap).\n\nThis patch removes DECLARE_TRACE_WITH_CALLBACK, and instead introduces\nDEFINE_TRACE_FN which stores the callbacks in struct tracepoint.  The\ncallbacks are used now when the active state of the tracepoint changes\nin set_tracepoint \u0026 disable_tracepoint.\n\nThis also introduces TRACE_EVENT_FN, so ftrace events can also provide\nregistration callbacks if needed.\n\nSigned-off-by: Josh Stone \u003cjistone@redhat.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nLKML-Reference: \u003c1251150194-1713-4-git-send-email-jistone@redhat.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n"
    },
    {
      "commit": "e647d6b314266adb904d4b84973eda0afa856946",
      "tree": "e4f18b57d37a25910b3d19b6c2461f87db0084a3",
      "parents": [
        "14be96c9716cb8c46dca94bd890defd7856e0734"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Wed Aug 19 15:54:32 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Wed Aug 19 15:02:24 2009 +0200"
      },
      "message": "tracing/events: Add trace_define_common_fields()\n\nExtract duplicate code. Also prepare for the later patch.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c4A8BAFB8.1010304@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "14be96c9716cb8c46dca94bd890defd7856e0734",
      "tree": "d9a064f3191182f16ff01176b17c4dda073d8dc8",
      "parents": [
        "10a5b66f625904ad5a2867cf7a28073e1236ff32"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Wed Aug 19 15:53:52 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Wed Aug 19 15:02:23 2009 +0200"
      },
      "message": "tracing/events: Add ftrace_event_call param to define_fields()\n\nThis parameter is needed by syscall events to add define_fields()\nhandler.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c4A8BAF90.6060801@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "e8f9f4d79a677f55c8ec3acbe87b33a87e2df0de",
      "tree": "3b20dcf2c7b49fe23e0641805ca7aaac921bc46d",
      "parents": [
        "0ac676fb50f5f8a22e5e80afc40bf38e31b77c00"
      ],
      "author": {
        "name": "Frederic Weisbecker",
        "email": "fweisbec@gmail.com",
        "time": "Tue Aug 11 17:42:52 2009 +0200"
      },
      "committer": {
        "name": "Frederic Weisbecker",
        "email": "fweisbec@gmail.com",
        "time": "Tue Aug 11 20:35:29 2009 +0200"
      },
      "message": "tracing: Add ftrace event call parameter to its field descriptor handler\n\nAdd the struct ftrace_event_call as a parameter of its show_format()\ncallback. This way we can use it from the syscall trace events to\nretrieve the syscall name from the ftrace event call parameter and\ndescribe its fields using the syscalls metadata.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\n"
    },
    {
      "commit": "69fd4f0eb2ececbf8ade55e31a933e174965745e",
      "tree": "bebe7f5b88b8e2c6c240390e4e546d0c3522e79b",
      "parents": [
        "f744bd576a827c5b02e756b81fc2578edf8179b8"
      ],
      "author": {
        "name": "Jason Baron",
        "email": "jbaron@redhat.com",
        "time": "Mon Aug 10 16:52:44 2009 -0400"
      },
      "committer": {
        "name": "Frederic Weisbecker",
        "email": "fweisbec@gmail.com",
        "time": "Tue Aug 11 20:35:27 2009 +0200"
      },
      "message": "tracing: Add ftrace_event_call void * \u0027data\u0027 field\n\nadd an optional void * pointer to \u0027ftrace_event_call\u0027 that is\npassed in for regfunc and unregfunc.\n\nThis prepares for syscall tracepoints creation by passing the name of\nthe syscall we want to trace and then retrieve its number through our\narch syscall table.\n\nSigned-off-by: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n"
    },
    {
      "commit": "89034bc2c7b839702c00a704e79d112737f98be0",
      "tree": "e65b1f3d4c751baa840efc81bc4734f089379eb3",
      "parents": [
        "fb82ad719831db58e9baa4c67015aae3fe27e7e3",
        "85dfd81dc57e8183a277ddd7a56aa65c96f3f487"
      ],
      "author": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Aug 11 14:19:09 2009 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Aug 11 14:19:09 2009 +0200"
      },
      "message": "Merge branch \u0027linus\u0027 into tracing/core\n\nConflicts:\n\tkernel/trace/trace_events_filter.c\n\nWe use the tracing/core version.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "1853db0e02ae4088f102b0d8e59e83dc98f93f03",
      "tree": "9fd877538baf1904a31eb5436536954cdced5293",
      "parents": [
        "304703aba31a87903b8c0db8f5e6890cac2d596d"
      ],
      "author": {
        "name": "Frederic Weisbecker",
        "email": "fweisbec@gmail.com",
        "time": "Mon Aug 10 16:38:36 2009 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Mon Aug 10 16:51:19 2009 +0200"
      },
      "message": "perf_counter: Zero dead bytes from ftrace raw samples size alignment\n\nAfter aligning the ftrace raw samples, there are dead bytes storing\nrandom data from the stack. We don\u0027t want to leak these to userspace,\nthen zero these out.\n\nBefore:\n\n\t0x2de88 [0x50]: event: 9\n\t.\n\t. ... raw event: size 80 bytes\n\t.  0000:  09 00 00 00 01 00 50 00 d0 c7 00 81 ff ff ff ff  ......P........\n\t.  0010:  68 01 00 00 68 01 00 00 2c 00 00 00 00 00 00 00  h...h...,......\n\t.  0020:  2c 00 00 00 2b 00 01 02 68 01 00 00 68 01 00 00  ,...+...h...h..\n\t.  0030:  6b 6f 6e 64 65 6d 61 6e 64 2f 30 00 00 00 00 00  kondemand/0....\n\t.  0040:  68 01 00 00 40 7f 46 81 ff ff ff ff 00 10 1b 7f  h...@.F........\n                                                      ^  ^  ^  ^\n                                                         Leak\n\nAfter:\n\n\t0x2d318 [0x50]: event: 9\n\t.\n\t. ... raw event: size 80 bytes\n\t.  0000:  09 00 00 00 01 00 50 00 d0 c7 00 81 ff ff ff ff  ......P........\n\t.  0010:  68 01 00 00 68 01 00 00 68 14 00 00 00 00 00 00  h...h...h......\n\t.  0020:  2c 00 00 00 2b 00 01 02 68 01 00 00 68 01 00 00  ,...+...h...h..\n\t.  0030:  6b 6f 6e 64 65 6d 61 6e 64 2f 30 00 00 00 00 00  kondemand/0....\n\t.  0040:  68 01 00 00 a0 80 46 81 ff ff ff ff 00 00 00 00  h.....F........\n                                                      ^  ^  ^  ^\n\t\t\t\t\t\t\t Fixed\n\nReported-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nLKML-Reference: \u003c1249915116-5210-1-git-send-email-fweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\n"
    },
    {
      "commit": "304703aba31a87903b8c0db8f5e6890cac2d596d",
      "tree": "bd233c6fd72d1d674c4a9537cfd6519069914d74",
      "parents": [
        "a4e95fc2cbb31d70a65beffeaf8773f881328c34"
      ],
      "author": {
        "name": "Frederic Weisbecker",
        "email": "fweisbec@gmail.com",
        "time": "Mon Aug 10 16:11:32 2009 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Mon Aug 10 16:18:50 2009 +0200"
      },
      "message": "perf_counter: Subtract the buffer size field from the event record size\n\nWe compute the perf raw sample size by aligning the raw ftrace\nevent size plus the buffer size field itself. We do that\ninstead of aligning only the perf raw sample size, so that we\nmight economize some in some cases.\n\nBut this buffer size field is not stored in the perf raw\nsample, we must then substract its size from the buffer once we\ncomputed the alignment unless we may get a useless u32 field in\nthe buffer.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nAcked-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nLKML-Reference: \u003c20090810141129.GA5124@nowhere\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "a044560c3a1f0ad75ce685c1ed7604820b9ed319",
      "tree": "51fa4979ad02d388b35e1a56020bfbd8c2e5329d",
      "parents": [
        "c0a8865e32c8d1a562db38e06ef31ef23282f646"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Mon Aug 10 11:16:52 2009 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Mon Aug 10 11:33:09 2009 +0200"
      },
      "message": "perf_counter: Correct PERF_SAMPLE_RAW output\n\nPERF_SAMPLE_* output switches should unconditionally output the\ncorrect format, as they are the only way to unambiguously parse\nthe PERF_EVENT_SAMPLE data.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nLKML-Reference: \u003c1249896447.17467.74.camel@twins\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "f413cdb80ce00ec1a4d0ab949b5d96c81cae7f75",
      "tree": "08a9621cb1318f73a37faeed14c4e728408551ad",
      "parents": [
        "3a6593050fbd8bbcaed3a44d01c31d907315c86c"
      ],
      "author": {
        "name": "Frederic Weisbecker",
        "email": "fweisbec@gmail.com",
        "time": "Fri Aug 07 01:25:54 2009 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Sun Aug 09 12:53:48 2009 +0200"
      },
      "message": "perf_counter: Fix/complete ftrace event records sampling\n\nThis patch implements the kernel side support for ftrace event\nrecord sampling.\n\nA new counter sampling attribute is added:\n\n   PERF_SAMPLE_TP_RECORD\n\nwhich requests ftrace events record sampling. In this case\nif a PERF_TYPE_TRACEPOINT counter is active and a tracepoint\nfires, we emit the tracepoint binary record to the\nperfcounter event buffer, as a sample.\n\nResult, after setting PERF_SAMPLE_TP_RECORD attribute from perf\nrecord:\n\n perf record -f -F 1 -a -e workqueue:workqueue_execution\n perf report -D\n\n 0x21e18 [0x48]: event: 9\n .\n . ... raw event: size 72 bytes\n .  0000:  09 00 00 00 01 00 48 00 d0 c7 00 81 ff ff ff ff  ......H........\n .  0010:  0a 00 00 00 0a 00 00 00 21 00 00 00 00 00 00 00  ........!......\n .  0020:  2b 00 01 02 0a 00 00 00 0a 00 00 00 65 76 65 6e  +...........eve\n .  0030:  74 73 2f 31 00 00 00 00 00 00 00 00 0a 00 00 00  ts/1...........\n .  0040:  e0 b1 31 81 ff ff ff ff                          .......\n.\n0x21e18 [0x48]: PERF_EVENT_SAMPLE (IP, 1): 10: 0xffffffff8100c7d0 period: 33\n\nThe raw ftrace binary record starts at offset 0020.\n\nTranslation:\n\n struct trace_entry {\n\ttype\t\t\u003d 0x2b \u003d 43;\n\tflags\t\t\u003d 1;\n\tpreempt_count\t\u003d 2;\n\tpid\t\t\u003d 0xa \u003d 10;\n\ttgid\t\t\u003d 0xa \u003d 10;\n }\n\n thread_comm \u003d \"events/1\"\n thread_pid  \u003d 0xa \u003d 10;\n func\t    \u003d 0xffffffff8131b1e0 \u003d flush_to_ldisc()\n\nWhat will come next?\n\n - Userspace support (\u0027perf trace\u0027), \u0027flight data recorder\u0027 mode\n   for perf trace, etc.\n\n - The unconditional copy from the profiling callback brings\n   some costs however if someone wants no such sampling to\n   occur, and needs to be fixed in the future. For that we need\n   to have an instant access to the perf counter attribute.\n   This is a matter of a flag to add in the struct ftrace_event.\n\n - Take care of the events recursivity! Don\u0027t ever try to record\n   a lock event for example, it seems some locking is used in\n   the profiling fast path and lead to a tracing recursivity.\n   That will be fixed using raw spinlock or recursivity\n   protection.\n\n - [...]\n\n - Profit! :-)\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nCc: Gabriel Munteanu \u003ceduard.munteanu@linux360.ro\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "3a6593050fbd8bbcaed3a44d01c31d907315c86c",
      "tree": "5bbaa0015ed0b0986146cc6fa9390f559bcb66b1",
      "parents": [
        "e3560336be655c6791316482fe288b119f34c427"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Tue Jul 21 17:34:57 2009 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Sun Aug 09 12:47:25 2009 +0200"
      },
      "message": "perf_counter, ftrace: Fix perf_counter integration\n\nAdds possible second part to the assign argument of TP_EVENT().\n\n  TP_perf_assign(\n\t__perf_count(foo);\n\t__perf_addr(bar);\n  )\n\nWhich, when specified make the swcounter increment with @foo instead\nof the usual 1, and report @bar for PERF_SAMPLE_ADDR (data address\nassociated with the event) when this triggers a counter overflow.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "7d536cb3fb9993bdcd5a2fbaa6b0670ded4e101c",
      "tree": "63c4a6ec6de75d9a2db7d677c768a5f2953fa237",
      "parents": [
        "68fd60a8c8bca6af51805c45f286f0f2572ac977"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Thu Jul 16 10:54:02 2009 +0800"
      },
      "committer": {
        "name": "Steven Rostedt",
        "email": "rostedt@goodmis.org",
        "time": "Mon Jul 20 11:38:44 2009 -0400"
      },
      "message": "tracing/events: record the size of dynamic arrays\n\nWhen a dynamic array is defined, we add __data_loc_foo in\ntrace_entry to record the offset of the array, but the\nsize of the array is not recorded, which causes 2 problems:\n\n- the event filter just compares the first 2 chars of the strings.\n\n- parsers can\u0027t parse dynamic arrays.\n\nSo we encode the size of each dynamic array in the higher 16 bits\nof __data_loc_foo, while the offset is in lower 16 bits.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4A5E964A.9000403@cn.fujitsu.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n"
    },
    {
      "commit": "68fd60a8c8bca6af51805c45f286f0f2572ac977",
      "tree": "7f7272bf201093e878f1f07c0bfe233f7e781634",
      "parents": [
        "d34a4debef933061924ee17c2ede33f5c44925fb"
      ],
      "author": {
        "name": "Lai Jiangshan",
        "email": "laijs@cn.fujitsu.com",
        "time": "Thu Jul 16 10:53:34 2009 +0800"
      },
      "committer": {
        "name": "Steven Rostedt",
        "email": "rostedt@goodmis.org",
        "time": "Mon Jul 20 10:52:51 2009 -0400"
      },
      "message": "tracing/events: add missing type info of dynamic arrays\n\nThe format file doesn\u0027t contain enough information for\n__dynamic_array/__string. The type name is missing.\n\nBefore:\n  # cat format:\n  name: irq_handler_entry\n  ...\n          field:__data_loc name;  offset:16;      size:2;\n\nAfter:\n  # cat format:\n  name: irq_handler_entry\n  ...\n          field:__data_loc char[] name;  offset:16;      size:2;\n\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4A5E962E.9020900@cn.fujitsu.com\u003e\nSigned-off-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\n"
    },
    {
      "commit": "6ff9a64d2aaa6eae396adc95e9c91c0cbfa6dbe4",
      "tree": "1ca1b9a0aff32f1542a9dc3d2f5ccac7ab8a52e3",
      "parents": [
        "bc5c6c043d8381676339fb3da59cc4cc5921d368"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Wed Jun 10 14:28:34 2009 -0400"
      },
      "committer": {
        "name": "Steven Rostedt",
        "email": "rostedt@goodmis.org",
        "time": "Wed Jun 10 14:28:34 2009 -0400"
      },
      "message": "tracing: do not translate event helper macros in print format\n\nBy moving the macro that creates the print format code above the\ndefining of the event macro helpers (__get_str, __print_symbolic,\nand __get_dynamic_array), we get a little cleaner print format.\n\nInstead of:\n\n  (char *)((void *)REC + REC-\u003e__data_loc_name)\n\nwe get:\n\n   __get_str(name)\n\nInstead of:\n\n   ({ static const struct trace_print_flags symbols[] \u003d { { HI_SOFTIRQ, \"HI\" }, {\n\nwe get:\n\n   __print_symbolic(REC-\u003evec, { HI_SOFTIRQ, \"HI\" }, {\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n"
    },
    {
      "commit": "56d8bd3f0b98972312cad683947ec90b21011199",
      "tree": "8ed2bb43d0f00923dd81b5b2c19c91b09e3977c6",
      "parents": [
        "048dc50c5e7eada19ebabbad70b7966d14283d41"
      ],
      "author": {
        "name": "Steven Whitehouse",
        "email": "swhiteho@redhat.com",
        "time": "Wed Jun 03 14:52:03 2009 +0100"
      },
      "committer": {
        "name": "Steven Rostedt",
        "email": "rostedt@goodmis.org",
        "time": "Wed Jun 03 10:29:48 2009 -0400"
      },
      "message": "tracing: fix multiple use of __print_flags and __print_symbolic\n\nHere is an updated patch to include the extra call to\ntrace_seq_init() as requested. This is vs. the latest\n-tip tree and fixes the use of multiple __print_flags\nand __print_symbolic in a single tracer. Also tested\nto ensure its working now:\n\nmount.gfs2-2534  [000]   235.850587: gfs2_glock_queue: 8.7 glock 1:2 dequeue PR\nmount.gfs2-2534  [000]   235.850591: gfs2_demote_rq: 8.7 glock 1:0 demote EX to NL flags:DI\nmount.gfs2-2534  [000]   235.850591: gfs2_glock_queue: 8.7 glock 1:0 dequeue EX\nglock_workqueue-2529  [000]   235.850666: gfs2_glock_state_change: 8.7 glock 1:0 state EX \u003d\u003e NL tgt:NL dmt:NL flags:lDpI\nglock_workqueue-2529  [000]   235.850672: gfs2_glock_put: 8.7 glock 1:0 state NL \u003d\u003e IV flags:I\n\nSigned-off-by: Steven Whitehouse \u003cswhiteho@redhat.com\u003e\nLKML-Reference: \u003c1244037123.29604.603.camel@localhost.localdomain\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n"
    },
    {
      "commit": "7fcb7c472f455d1711eb5a7633204dba8800a6d6",
      "tree": "ba64de513bdbe5550c6fc08078a356359830ec99",
      "parents": [
        "a9c1c3abe1160a5632e48c929b02b740556bf423"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Mon Jun 01 15:35:46 2009 +0800"
      },
      "committer": {
        "name": "Steven Rostedt",
        "email": "rostedt@goodmis.org",
        "time": "Mon Jun 01 23:25:15 2009 -0400"
      },
      "message": "tracing/events: introduce __dynamic_array()\n\n__string() is limited:\n\n  - it\u0027s a char array, but we may want to define array with other types\n  - a source string should be available, but we may just know the string size\n\nWe introduce __dynamic_array() to break those limitations, and __string()\nbecomes a wrapper of it. As a side effect, now __get_str() can be used\nin TP_fast_assign but not only TP_print.\n\nTake XFS for example, we have the string length in the dirent, but the\nstring itself is not NULL-terminated, so __dynamic_array() can be used:\n\nTRACE_EVENT(xfs_dir2,\n\tTP_PROTO(struct xfs_da_args *args),\n\tTP_ARGS(args),\n\n\tTP_STRUCT__entry(\n\t\t__field(int, namelen)\n\t\t__dynamic_array(char, name, args-\u003enamelen + 1)\n\t\t...\n\t),\n\n\tTP_fast_assign(\n\t\tchar *name \u003d __get_str(name);\n\n\t\tif (args-\u003enamelen)\n\t\t\tmemcpy(name, args-\u003ename, args-\u003enamelen);\n\t\tname[args-\u003enamelen] \u003d \u0027\\0\u0027;\n\n\t\t__entry-\u003enamelen \u003d args-\u003enamelen;\n\t),\n\n\tTP_printk(\"name %.*s namelen %d\",\n\t\t  __entry-\u003enamelen ? __get_str(name) : NULL\n\t\t  __entry-\u003enamelen)\n);\n\n[ Impact: allow defining dynamic size arrays ]\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4A2384D2.3080403@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n"
    },
    {
      "commit": "a9c1c3abe1160a5632e48c929b02b740556bf423",
      "tree": "07d2313c9b8c637e6532e61efe034dba5a697231",
      "parents": [
        "6e25db44a7ad7eb380f4ec774ec00a8fcddea112"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Mon Jun 01 15:35:13 2009 +0800"
      },
      "committer": {
        "name": "Steven Rostedt",
        "email": "rostedt@goodmis.org",
        "time": "Mon Jun 01 23:24:53 2009 -0400"
      },
      "message": "tracing/events: put TP_fast_assign into braces\n\nCurrently TP_fast_assign has a limitation that we can\u0027t define local\nvariables in it.\n\nHere\u0027s one use case when we introduce __dynamic_array():\n\nTP_fast_assign(\n\ttype *p \u003d __get_dynamic_array(item);\n\n\tfoo(p);\n\tbar(p);\n),\n\n[ Impact: allow defining local variables in TP_fast_assign ]\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4A2384B1.90100@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n"
    },
    {
      "commit": "6e25db44a7ad7eb380f4ec774ec00a8fcddea112",
      "tree": "35531dfe6f96b7883fc3014bbd0239eba616d414",
      "parents": [
        "897f17a65389a26509bd0c79a9812d1c9ea8ea6f"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Fri May 29 11:24:59 2009 +0800"
      },
      "committer": {
        "name": "Steven Rostedt",
        "email": "rostedt@goodmis.org",
        "time": "Mon Jun 01 23:24:13 2009 -0400"
      },
      "message": "tracing/events: fix a typo in __string() format output\n\n\"tsize\" should be \"\\tsize\". Also remove the space before \"__str_loc\".\n\nBefore:\n # cat tracing/events/irq/irq_handler_entry/format\n        ...\n        field:int irq;  offset:12;      size:4;\n        field: __str_loc name;  offset:16;tsize:2;\n        ...\n\nAfter:\n # cat tracing/events/irq/irq_handler_entry/format\n\t...\n        field:int irq;  offset:12;      size:4;\n        field:__str_loc name;   offset:16;      size:2;\n\t...\n\n[ Impact: standardize __string field description in events format file ]\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n"
    },
    {
      "commit": "f2aebaee653a35b01c3665de2cbb1e31456b8ea8",
      "tree": "e9a873c81bb4105d10a04d925f15e53e9ad1ac0c",
      "parents": [
        "5b6045a906f48d37591365c5dcdd6d1d146bfd4a"
      ],
      "author": {
        "name": "Zhaolei",
        "email": "zhaolei@cn.fujitsu.com",
        "time": "Wed May 27 21:36:02 2009 +0800"
      },
      "committer": {
        "name": "Frederic Weisbecker",
        "email": "fweisbec@gmail.com",
        "time": "Thu May 28 01:22:06 2009 +0200"
      },
      "message": "ftrace: don\u0027t convert function\u0027s local variable name in macro\n\n\"call\" is an argument of macro, but it is also used as a local\nvariable name of function in macro.\nWe should keep this local variable name distinct from any\nCPP macro parameter name if both are in the same macro scope,\nalthough it hasn\u0027t caused any problem yet.\n\n[ Impact: robustify macro ]\n\nSigned-off-by: Zhao Lei \u003czhaolei@cn.fujitsu.com\u003e\nAcked-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n"
    },
    {
      "commit": "0f4fc29dd68dfab9c6ddd5d087d34a5b6818cb00",
      "tree": "af3d210c8db9adcf117580c949fb708badcb520b",
      "parents": [
        "62ba180e80f4194a498585ac0e4c07daa8ca08d1"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Wed May 20 19:21:47 2009 -0400"
      },
      "committer": {
        "name": "Frederic Weisbecker",
        "email": "fweisbec@gmail.com",
        "time": "Tue May 26 20:31:50 2009 +0200"
      },
      "message": "tracing: add __print_symbolic to trace events\n\nThis patch adds __print_symbolic which is similar to __print_flags but\nworks for an enumeration type instead. That is, there is only a one to one\nmapping between the values and the symbols. When a match is made, then\nit is printed, otherwise the hex value is outputed.\n\n[ Impact: add interface for showing symbol names in events ]\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n"
    },
    {
      "commit": "be74b73a57645cc253d881ab0c1014eb64b9cf22",
      "tree": "83f14ae9a43fe98a1363d30d20d60245e1115382",
      "parents": [
        "0e907c99391362385c8e3af2c43b904dd1fd5d73"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Tue May 26 20:25:22 2009 +0200"
      },
      "committer": {
        "name": "Frederic Weisbecker",
        "email": "fweisbec@gmail.com",
        "time": "Tue May 26 20:25:22 2009 +0200"
      },
      "message": "tracing: add __print_flags for events\n\nDevelopers have been asking for the ability in the ftrace event tracer\nto display names of bits in a flags variable.\n\nInstead of printing out c2, it would be easier to read FOO|BAR|GOO,\nassuming that FOO is bit 1, BAR is bit 6 and GOO is bit 7.\n\nSome examples where this would be useful are the state flags in a context\nswitch, kmalloc flags, and even permision flags in accessing files.\n\n[\n  v2 changes include:\n\n  Frederic Weisbecker\u0027s idea of using a mask instead of bits,\n  thus we can output GFP_KERNEL instead of GPF_WAIT|GFP_IO|GFP_FS.\n\n  Li Zefan\u0027s idea of allowing the caller of __print_flags to add their\n  own delimiter (or no delimiter) where we can get for file permissions\n  rwx instead of r|w|x.\n]\n\n[\n  v3 changes:\n\n   Christoph Hellwig\u0027s idea of using an array instead of va_args.\n]\n\n[ Impact: better displaying of flags in trace output ]\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n"
    },
    {
      "commit": "b0aae68cc5508f3c2fbf728988c954db4c8b8a53",
      "tree": "af1253c54cf3edc83806acab14a60d1529e81709",
      "parents": [
        "4f5359685af6de7dca101393dc606620adbe963f"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Thu May 21 13:59:18 2009 +0800"
      },
      "committer": {
        "name": "Frederic Weisbecker",
        "email": "fweisbec@gmail.com",
        "time": "Tue May 26 00:15:21 2009 +0200"
      },
      "message": "tracing/events: change the type of __str_loc_item to unsigned short\n\nWhen defining a dynamic size string, we add __str_loc_##item to the\ntrace entry, and it stores the location of the actual string in\nentry-\u003e_str_data[]\n\n\u0027unsigned short\u0027 should be sufficient to store this information, thus\nwe save 2 bytes per dyn-size string in the ring buffer.\n\n[ Impact: reduce memory occupied by dyn-size strings in ring buffer ]\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c4A14EDB6.2050507@cn.fujitsu.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n"
    },
    {
      "commit": "a118e4d1402f1349fe3d953493e4168a300a752d",
      "tree": "bd4c2fccee4528bf7d1536e33218516953904740",
      "parents": [
        "30e673b230f9d556eb81ef68a7b1a08c8b3b142c"
      ],
      "author": {
        "name": "Tom Zanussi",
        "email": "tzanussi@gmail.com",
        "time": "Tue Apr 28 03:04:53 2009 -0500"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Wed Apr 29 14:06:03 2009 +0200"
      },
      "message": "tracing/filters: distinguish between signed and unsigned fields\n\nThe new filter comparison ops need to be able to distinguish between\nsigned and unsigned field types, so add an is_signed flag/param to the\nevent field struct/trace_define_fields().  Also define a simple macro,\nis_signed_type() to determine the signedness at compile time, used in the\ntrace macros.  If the is_signed_type() macro won\u0027t work with a specific\ntype, a new slightly modified version of TRACE_FIELD() called\nTRACE_FIELD_SIGN(), allows the signedness to be set explicitly.\n\n[ Impact: extend trace-filter code for new feature ]\n\nSigned-off-by: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nAcked-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: fweisbec@gmail.com\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c1240905893.6416.120.camel@tropicana\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "b8e65554d80b4c560d201362d0e8fa02109d89fd",
      "tree": "21ebf291cf1ac97533cac99619652cd21bbd04f2",
      "parents": [
        "160031b556e93590fa8635210d73d93c3d3853a9"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Fri Apr 24 11:50:39 2009 -0400"
      },
      "committer": {
        "name": "Steven Rostedt",
        "email": "rostedt@goodmis.org",
        "time": "Fri Apr 24 11:50:39 2009 -0400"
      },
      "message": "tracing: remove deprecated TRACE_FORMAT\n\nThe TRACE_FORMAT macro has been deprecated by the TRACE_EVENT macro.\nThere are no more users. All new users must use the TRACE_EVENT macro.\n\n[ Impact: remove old functionality ]\n\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n"
    },
    {
      "commit": "6a74aa40907757ec98d8710ff66cd4cfe064e7d8",
      "tree": "804f0043f9aa684dd00d4a0ef4f950c2da4d6550",
      "parents": [
        "7e7ca9a22dbbc5c91763cd16923c7509918709b6"
      ],
      "author": {
        "name": "Frederic Weisbecker",
        "email": "fweisbec@gmail.com",
        "time": "Wed Apr 22 00:41:09 2009 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Wed Apr 22 12:30:49 2009 +0200"
      },
      "message": "tracing/events: protect __get_str()\n\nThe __get_str() macro is used in a code part then its content should be\nprotected with parenthesis.\n\n[ Impact: make macro definition more robust ]\n\nReported-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n"
    },
    {
      "commit": "9cbf117662e24c6d33245666804487f92c21b59d",
      "tree": "c4c7bed1ccb7a0a332abdc7cbf4620c98a0321cf",
      "parents": [
        "7a4f453b6d7379a7c380825949977c5a838aa012"
      ],
      "author": {
        "name": "Frederic Weisbecker",
        "email": "fweisbec@gmail.com",
        "time": "Sun Apr 19 04:51:29 2009 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Wed Apr 22 12:29:18 2009 +0200"
      },
      "message": "tracing/events: provide string with undefined size support\n\nThis patch provides the support for dynamic size strings on\nevent tracing.\n\nThe key concept is to use a structure with an ending char array field of\nundefined size and use such ability to allocate the minimal size on the\nring buffer to make one or more string entries fit inside, as opposite\nto a fixed length strings with upper bound.\n\nThe strings themselves are represented using fields which have an offset\nvalue from the beginning of the entry.\n\nThis patch provides three new macros:\n\n__string(item, src)\n\nThis one declares a string to the structure inside TP_STRUCT__entry.\nYou need to provide the name of the string field and the source that will\nbe copied inside.\nThis will also add the dynamic size of the string needed for the ring\nbuffer entry allocation.\nA stack allocated structure is used to temporarily store the offset\nof each strings, avoiding double calls to strlen() on each event\ninsertion.\n\n__get_str(field)\n\nThis one will give you a pointer to the string you have created. This\nis an abstract helper to resolve the absolute address given the field\nname which is a relative address from the beginning of the trace_structure.\n\n__assign_str(dst, src)\n\nUse this macro to automatically perform the string copy from src to\ndst. src must be a variable to assign and dst is the name of a __string\nfield.\n\nExample on how to use it:\n\nTRACE_EVENT(my_event,\n\tTP_PROTO(char *src1, char *src2),\n\n\tTP_ARGS(src1, src2),\n\tTP_STRUCT__entry(\n\t\t__string(str1, src1)\n\t\t__string(str2, src2)\n\t),\n\tTP_fast_assign(\n\t\t__assign_str(str1, src1);\n\t\t__assign_str(str2, src2);\n\t),\n\tTP_printk(\"%s %s\", __get_str(src1), __get_str(src2))\n)\n\nOf course you can mix-up any __field or __array inside this\nTRACE_EVENT. The position of the __string or __assign_str\ndoesn\u0027t matter.\n\nChanges in v2:\n\nAddress the suggestion of Steven Rostedt: drop the opening_string() macro\nand redefine __ending_string() to get the size of the string to be copied\ninstead of overwritting the whole ring buffer allocation.\n\nChanges in v3:\n\nAddress other suggestions of Steven Rostedt and Peter Zijlstra with\nsome changes: drop the __ending_string and the need to have only one\nstring field.\nUse offsets instead of absolute addresses.\n\n[ Impact: allow more compact memory usage for string tracing ]\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\n"
    },
    {
      "commit": "7a4f453b6d7379a7c380825949977c5a838aa012",
      "tree": "9f5450c7a1abc865b998885affe964d4670a08bc",
      "parents": [
        "3554228d4289098a8fe5cfd87512ec32a19bbe5a"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Wed Apr 22 16:53:34 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Wed Apr 22 11:36:38 2009 +0200"
      },
      "message": "tracing/events: make struct trace_entry-\u003etype to be int type\n\nstruct trace_entry-\u003etype is unsigned char, while trace event\u0027s id is\nint type, thus for a event with id \u003e\u003d 256, it\u0027s entry-\u003etype is cast\nto (id % 256), and then we can\u0027t see the trace output of this event.\n\n # insmod trace-events-sample.ko\n # echo foo_bar \u003e /mnt/tracing/set_event\n # cat /debug/tracing/events/trace-events-sample/foo_bar/id\n 256\n # cat /mnt/tracing/trace_pipe\n           \u003c...\u003e-3548  [001]   215.091142: Unknown type 0\n           \u003c...\u003e-3548  [001]   216.089207: Unknown type 0\n           \u003c...\u003e-3548  [001]   217.087271: Unknown type 0\n           \u003c...\u003e-3548  [001]   218.085332: Unknown type 0\n\n[ Impact: fix output for trace events with id \u003e\u003d 256 ]\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nLKML-Reference: \u003c49EEDB0E.5070207@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "76aa81118ddfbb3dc31533030cf3ec329dd067a6",
      "tree": "ab741782e757be5635413b5f1359cd0d520a22a4",
      "parents": [
        "9ea21c1ecdb35ecdcac5fd9d95f62a1f6a7ffec0"
      ],
      "author": {
        "name": "Jeremy Fitzhardinge",
        "email": "jeremy.fitzhardinge@citrix.com",
        "time": "Thu Apr 16 23:35:39 2009 -0700"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Fri Apr 17 17:52:26 2009 +0200"
      },
      "message": "tracing: avoid warnings from zero-arg tracepoints\n\nTracepoints with no arguments can issue two warnings:\n\n\t\"field\" defined by not used\n\t\"ret\" is uninitialized in this function\n\nMark field as being OK to leave unused, and initialize ret.\n\n[ Impact: fix false positive compiler warnings. ]\n\nSigned-off-by: Jeremy Fitzhardinge \u003cjeremy.fitzhardinge@citrix.com\u003e\nAcked-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: mathieu.desnoyers@polymtl.ca\nLKML-Reference: \u003c1239950139-1119-5-git-send-email-jeremy@goop.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\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": "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"
    }
  ]
}