)]}' { "log": [ { "commit": "557055bebe9212dfa6b9f5df811dfd0dac77ec55", "tree": "bd396effa5011a2fc687a3cd887f8235a1d1977e", "parents": [ "a3d03ecaf9fe722bf96e4ef4a2f5e42ef652ddeb" ], "author": { "name": "Zhaolei", "email": "zhaolei@cn.fujitsu.com", "time": "Mon Apr 13 16:02:34 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Apr 14 02:30:36 2009 +0200" }, "message": "tracing: Fix branch tracer header\n\nBefore patch:\n\n # tracer: branch\n #\n # TASK-PID CPU# TIMESTAMP FUNCTION\n # | | | | |\n \u003c...\u003e-2981 [000] 24008.872738: [ ok ] trace_irq_handler_exit:irq_event_types.h:41\n \u003c...\u003e-2981 [000] 24008.872742: [ ok ] note_interrupt:spurious.c:229\n ...\n\nAfter patch:\n\n # tracer: branch\n #\n # TASK-PID CPU# TIMESTAMP CORRECT FUNC:FILE:LINE\n # | | | | | |\n \u003c...\u003e-2985 [000] 26329.142970: [ ok ] slab_free:slub.c:1776\n \u003c...\u003e-2985 [000] 26329.142972: [ ok ] trace_kmem_cache_free:kmem_event_types.h:191\n ...\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\nCc: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nLKML-Reference: \u003c49E2F19A.3040006@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "a3d03ecaf9fe722bf96e4ef4a2f5e42ef652ddeb", "tree": "f845537695b6164b2feb9f4c6d356174a602001d", "parents": [ "80a04d3f2f94fb68b5df05e3ac6697130bc3467a" ], "author": { "name": "Zhaolei", "email": "zhaolei@cn.fujitsu.com", "time": "Mon Apr 13 15:23:53 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Apr 13 23:39:57 2009 +0200" }, "message": "tracing: Fix power tracer header\n\nBefore patch:\n # tracer: power\n #\n # TASK-PID CPU# TIMESTAMP FUNCTION\n # | | | | |\n [ 676.875865889] CSTATE: Going to C1 on cpu 0 for 0.005911463\n [ 676.882938805] CSTATE: Going to C1 on cpu 0 for 0.104796532\n ...\n\nAfter patch:\n # tracer: power\n #\n # TIMESTAMP STATE EVENT\n # | | |\n [ 676.875865889] CSTATE: Going to C1 on cpu 0 for 0.005911463\n [ 676.882938805] CSTATE: Going to C1 on cpu 0 for 0.104796532\n ...\n\nv2: Use seq_puts instead of seq_printf\n\nSigned-off-by: Zhao Lei \u003czhaolei@cn.fujitsu.com\u003e\nCc: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nLKML-Reference: \u003c49E2E889.5000903@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": "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": "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": "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": "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": "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" }, { "commit": "cc59c9e8d0165c632fd056c4a23e36f917507fb4", "tree": "8ca2b92345345d53ce3b5585cf87d72afddda43c", "parents": [ "be6f164a02f394675e2ac2077dd354cebef5b4c0" ], "author": { "name": "Lai Jiangshan", "email": "laijs@cn.fujitsu.com", "time": "Tue Mar 24 11:03:01 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Mar 24 16:42:49 2009 +0100" }, "message": "ftrace: show virtual PID\n\nImpact: fix PID output under namespaces\n\nWhen current namespace is not the global namespace,\npid read from set_ftrace_pid is no correct.\n\n # ~/newpid_namespace_run bash\n # echo $$\n 1\n # echo 1 \u003e set_ftrace_pid\n # cat set_ftrace_pid\n 3756\n\nSince we write virtual PID to set_ftrace_pid, we need get\nvirtual PID when we read it.\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: \u003c49C84D65.9050606@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "be6f164a02f394675e2ac2077dd354cebef5b4c0", "tree": "9805294731c00ddb61857a4e1e42019058eb1542", "parents": [ "8aef2d2856158a36c295a8d1288281e4839bff13" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue Mar 24 11:06:24 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue Mar 24 11:06:24 2009 -0400" }, "message": "function-graph: add option for include sleep times\n\nImpact: give user a choice to show times spent while sleeping\n\nThe user may want to see the time a function spent sleeping.\nThis patch adds the trace option \"sleep-time\" to allow that.\nThe \"sleep-time\" option is default on.\n\n echo sleep-time \u003e /debug/tracing/trace_options\n\nproduces:\n\n ------------------------------------------\n 2) avahi-d-3428 \u003d\u003e \u003cidle\u003e-0\n ------------------------------------------\n\n 2) | finish_task_switch() {\n 2) 0.621 us | _spin_unlock_irq();\n 2) 2.202 us | }\n 2) ! 1002.197 us | }\n 2) ! 1003.521 us | }\n\nwhere as,\n\n echo nosleep-time \u003e /debug/tracing/trace_options\n\nproduces:\n\n 0) \u003cidle\u003e-0 \u003d\u003e yum-upd-3416\n ------------------------------------------\n\n 0) | finish_task_switch() {\n 0) 0.643 us | _spin_unlock_irq();\n 0) 2.342 us | }\n 0) + 41.302 us | }\n 0) + 42.453 us | }\n\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\n" }, { "commit": "8aef2d2856158a36c295a8d1288281e4839bff13", "tree": "eef85397dedcad001982724e0be2da6dc089b39f", "parents": [ "05ce5818adee8f8efd0a5ca0d900a6789012516b" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue Mar 24 01:10:15 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue Mar 24 09:33:30 2009 -0400" }, "message": "function-graph: ignore times across schedule\n\nImpact: more accurate timings\n\nThe current method of function graph tracing does not take into\naccount the time spent when a task is not running. This shows functions\nthat call schedule have increased costs:\n\n 3) + 18.664 us | }\n ------------------------------------------\n 3) \u003cidle\u003e-0 \u003d\u003e kblockd-123\n ------------------------------------------\n\n 3) | finish_task_switch() {\n 3) 1.441 us | _spin_unlock_irq();\n 3) 3.966 us | }\n 3) ! 2959.433 us | }\n 3) ! 2961.465 us | }\n\nThis patch uses the tracepoint in the scheduling context switch to\naccount for time that has elapsed while a task is scheduled out.\nNow we see:\n\n ------------------------------------------\n 3) \u003cidle\u003e-0 \u003d\u003e edac-po-1067\n ------------------------------------------\n\n 3) | finish_task_switch() {\n 3) 0.685 us | _spin_unlock_irq();\n 3) 2.331 us | }\n 3) + 41.439 us | }\n 3) + 42.663 us | }\n\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\n" }, { "commit": "05ce5818adee8f8efd0a5ca0d900a6789012516b", "tree": "81c90288dd1da4291b5e3ee154756b2d7745c248", "parents": [ "5d1a03dc541dc6672e60e57249ed22f40654ca47" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue Mar 24 00:18:31 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue Mar 24 09:32:52 2009 -0400" }, "message": "function-graph: prevent more than one tracer registering\n\nImpact: prevent crash due to multiple function graph tracers\n\nThe function graph tracer can currently only handle a single tracer\nbeing registered. If another tracer registers with the function\ngraph tracer it can crash the system.\n\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\n" }, { "commit": "5d1a03dc541dc6672e60e57249ed22f40654ca47", "tree": "0b72061cc8c56797474d2efbfe1954ce0ad27ce8", "parents": [ "098335215a4921a8a54193829eaed602dca24df5" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Mon Mar 23 23:38:49 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue Mar 24 09:31:34 2009 -0400" }, "message": "function-graph: moved the timestamp from arch to generic code\n\nThis patch move the timestamp from happening in the arch specific\ncode into the general code. This allows for better control by the tracer\nto time manipulation.\n\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\n" }, { "commit": "098335215a4921a8a54193829eaed602dca24df5", "tree": "86226d7e4229f00e467b5e6ed7f048a2061c3042", "parents": [ "45b9560895b07a4a09d55d49235c984db512c5aa" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Sat Mar 21 02:44:50 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue Mar 24 09:07:35 2009 -0400" }, "message": "tracing: fix memory leak in trace_stat\n\nIf the function profiler does not have any items recorded and one were\nto cat the function stat file, the kernel would take a BUG with a NULL\npointer dereference.\n\nLooking further into this, I found that returning NULL from stat_start\ndid not stop the stat logic, and would later call stat_next. This breaks\nfrom the way seq_file works, so I looked into fixing the stat code.\n\nThis is where I noticed that the last next_entry is never freed.\nIt is allocated, and if the stat_next returns NULL, the code breaks out\nof the loop, unlocks the mutex and exits. We never link the next_entry\nnor do we free it. Thus it is a real memory leak.\n\nThis patch rearranges the code a bit to not only fix the memory leak,\nbut also to act more like seq_file where nothing is printed if there\nis nothing to print. That is, stat_start returns NULL.\n\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\n" }, { "commit": "093419971e03362a00f499960557c119982ea09f", "tree": "f355954c6282bc6ee3d67f7ae374408821a216ef", "parents": [ "e0dc81bec0927fa0c8aabc521793161909eef7a5" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Tue Mar 24 17:43:30 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Mar 24 13:09:00 2009 +0100" }, "message": "blktrace: print human-readable act_mask\n\nImpact: new feature, allow symbolic values in /debug/tracing/act_mask\n\nPrint stringified act_mask instead of hex value:\n\n # cat act_mask\n read,write,barrier,sync,queue,requeue,issue,complete,fs,pc,ahead,meta,\n discard,drv_data\n # echo \"meta,write\" \u003e act_mask\n # cat act_mask\n write,meta\n\nAlso:\n - make act_mask accept \"ahead\", \"meta\", \"discard\" and \"drv_data\"\n - use strsep() instead of strchr() to parse user input\n - return -EINVAL if a token is not found in the mask map\n - fix a bug that \u0027value\u0027 is unsigned, so it can \u003c 0\n - propagate error value of blk_trace_mask2str() to userspace, but not\n always return -ENXIO.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nLKML-Reference: \u003c49C8AB42.1000802@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e0dc81bec0927fa0c8aabc521793161909eef7a5", "tree": "6a3516ed95324fc33c09f3d94c086f09c8144395", "parents": [ "65796348e09880e12b97267d39b8857c758440a6" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Tue Mar 24 16:05:51 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Mar 24 13:09:00 2009 +0100" }, "message": "blktrace: fix t_error()\n\nImpact: fix error flag output\n\nt_error() should return t-\u003eerror but not t-\u003esector.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nLKML-Reference: \u003c49C8945F.5020802@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "65796348e09880e12b97267d39b8857c758440a6", "tree": "176f962be8db38b8fe7309363d73c72fa6c4c69e", "parents": [ "e4955c9986a27bb47ddeb6cd55803053f547e2e9" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Tue Mar 24 16:05:06 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Mar 24 13:08:59 2009 +0100" }, "message": "blktrace: fix wrong calculation of RWBS\n\nImpact: fix the output of IO type category characters\n\nTrace categories are the upper 16 bits, not the lower 16 bits.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nLKML-Reference: \u003c49C89432.8010805@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e4955c9986a27bb47ddeb6cd55803053f547e2e9", "tree": "e0dc65874b6d403d4379fd57c73a05ace516067c", "parents": [ "b125130b22d67f249beba10b71a254558b5279d0" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Tue Mar 24 16:04:37 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Mar 24 13:08:59 2009 +0100" }, "message": "blktrace: mark ddir_act[] const\n\nImpact: cleanup\n\nddir_act and what2act always stay immutable.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nLKML-Reference: \u003c49C89415.5080503@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "9f58a159d022c8f2533a27708aa267adf4f0e3ce", "tree": "471fb100abead729ccfbfcc206fb0d5daa03f1c5", "parents": [ "4bda2d517bfa3ce3d7044e06988cdddae7adffe2" ], "author": { "name": "Tom Zanussi", "email": "tzanussi@gmail.com", "time": "Tue Mar 24 02:14:42 2009 -0500" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Mar 24 08:26:52 2009 +0100" }, "message": "tracing/filters: disallow integer values for string filters and vice versa\n\nImpact: fix filter use boundary condition / crash\n\nMake sure filters for string fields don\u0027t use integer values and vice\nversa. Getting it wrong can crash the system or produce bogus\nresults.\n\nSigned-off-by: Tom Zanussi \u003ctzanussi@gmail.com\u003e\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": "4bda2d517bfa3ce3d7044e06988cdddae7adffe2", "tree": "62d99deb281a0395942b462f7cff2d2b42f2d905", "parents": [ "09f1f245c79585383de63e3ca54d0f91824bff3a" ], "author": { "name": "Tom Zanussi", "email": "tzanussi@gmail.com", "time": "Tue Mar 24 02:14:31 2009 -0500" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Mar 24 08:26:52 2009 +0100" }, "message": "tracing/filters: use trace_seq_printf() to print filters\n\nImpact: cleanup\n\nInstead of just using the trace_seq buffer to print the filters, use\ntrace_seq_printf() as it was intended to be used.\n\nReported-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nSigned-off-by: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nCc: \u003d?ISO-8859-1?Q?Fr\u003dE9d\u003dE9ric?\u003d Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c1237878871.8339.59.camel@charm-linux\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "09f1f245c79585383de63e3ca54d0f91824bff3a", "tree": "bc3aaadf4cc0c0cd90bafd4a61ad4c15392da303", "parents": [ "1fc2d5c11918082536acf261ce6abb1f5511053f" ], "author": { "name": "Tom Zanussi", "email": "tzanussi@gmail.com", "time": "Tue Mar 24 02:14:11 2009 -0500" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Mar 24 08:26:51 2009 +0100" }, "message": "tracing/filters: free pred when clearing filters\n\nImpact: fix (small) per trace filter modification memory leak\n\nFree the current pred when clearing the filters via the filter files.\n\nSigned-off-by: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: \u003d?ISO-8859-1?Q?Fr\u003dE9d\u003dE9ric?\u003d Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c1237878851.8339.58.camel@charm-linux\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "1fc2d5c11918082536acf261ce6abb1f5511053f", "tree": "ee8834467628c39a0a213503f888d11b31365f56", "parents": [ "1618536961d31f9b3f55767b22d4a897f4204c26" ], "author": { "name": "Tom Zanussi", "email": "tzanussi@gmail.com", "time": "Tue Mar 24 02:14:01 2009 -0500" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Mar 24 08:26:51 2009 +0100" }, "message": "tracing/filters: use list_for_each_entry\n\nImpact: cleanup\n\nNo need to use the safe version here, so use list_for_each_entry instead\nof list_for_each_entry_safe in find_event_field().\n\nSigned-off-by: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: \u003d?ISO-8859-1?Q?Fr\u003dE9d\u003dE9ric?\u003d Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c1237878841.8339.57.camel@charm-linux\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "1618536961d31f9b3f55767b22d4a897f4204c26", "tree": "f1396f4c869328dc5d6e677f6fdde571d2c6e4d7", "parents": [ "c4cff064be678f1e8344d907499f2a81282edc19" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Mon Mar 23 22:17:01 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Mar 23 23:25:32 2009 +0100" }, "message": "tracing/function-graph-tracer: fix functions call traces imbalance\n\nImpact: fix traces output\n\nSometimes one can observe an imbalance in the traces between function\ncalls and function return traces:\n\nfunc1() {\n }\n}\n\nThe curly brace inside func1() is the return of another function nested\ninside func1. The return trace have been inserted in the buffer but not\nthe entry.\nWe are storing a return address on the function traces stack while we\nhaven\u0027t inserted its entry on the buffer, hence the imbalance on the\ntraces.\n\nThis is because the tracers doesn\u0027t check all failures that can happen\non buffer insertion.\n\nThis patch reports the tracing recursion failures and the ring buffer\nfailures. In such cases, we now restore the original return address for\nthe function, giving up its return trace.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c1237843021-11695-1-git-send-email-fweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "45b9560895b07a4a09d55d49235c984db512c5aa", "tree": "327ccd6be20791915007137c7db64361c1eef6e6", "parents": [ "3e1f60b80cafcb5d7e8d3665b35962fbb8fb9efa" ], "author": { "name": "Anton Vorontsov", "email": "avorontsov@ru.mvista.com", "time": "Tue Mar 24 01:07:24 2009 +0300" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Mar 23 23:23:03 2009 +0100" }, "message": "tracing: Fix TRACING_SUPPORT dependency for PPC32\n\ncommit 40ada30f9621fbd831ac2437b9a2a399aa (\"tracing: clean up menu\"),\ndespite the \"clean up\" in its purpose, introduced a behavioural\nchange for Kconfig symbols: we no longer able to select tracing\nsupport on PPC32 (because IRQFLAGS_SUPPORT isn\u0027t yet implemented).\n\nThe IRQFLAGS_SUPPORT is not mandatory for most tracers, tracing core\nhas a special case for platforms w/o irqflags (which, by the way, has\nbecome useless as of the commit above).\n\nThough according to Ingo Molnar, there was periodic build failures on\nweird, unmaintained architectures that had no irqflags-tracing support\nand hence didn\u0027t know the raw_irqs_save/restore primitives. Thus we\u0027d\nbetter not enable irqflags-less tracing for all architectures.\n\nThis patch restores the old behaviour for PPC32, and thus brings the\ntracing back. Other architectures can either add themselves to the\nexception list or (better) implement TRACE_IRQFLAGS_SUPPORT.\n\nSigned-off-by: Anton Vorontsov \u003cavorontsov@ru.mvista.com\u003e\nAcked-b: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: linuxppc-dev@ozlabs.org\nLKML-Reference: \u003c20090323220724.GA9851@oksana.dev.rtsoft.ru\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "3e1f60b80cafcb5d7e8d3665b35962fbb8fb9efa", "tree": "80b07264a2599f494f9f8eebb7230ceead3ae645", "parents": [ "c0f92ba99bdeaf35f9c580291b4e1a657c67fbd4" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sun Mar 22 23:10:45 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Mar 23 16:25:47 2009 +0100" }, "message": "tracing/ftrace: check if debugfs is registered before creating files\n\nImpact: fix a crash with ftrace\u003d{nop,boot} parameter\n\nIf the nop or initcall tracers are launched as boot tracers,\nthey will attempt to create their option directory and files.\nBut these tracers are registered very early and then assigned\nas \"boot tracers\" very early if asked to.\n\nSince they do this before debugfs has been registered (core initcall),\na crash is triggered.\n\nAnother early tracers could also come later. So we fix it by\nchecking if debugfs is initialized before creating the root\ntracing directory.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c1237759847-21025-3-git-send-email-fweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "c4cff064be678f1e8344d907499f2a81282edc19", "tree": "8c020dd399a8eba7ae279283e9a3eeb074c74d88", "parents": [ "ee6cdabc820a29bd607f38d9cb335c3ceddc673b" ], "author": { "name": "Tom Zanussi", "email": "tzanussi@gmail.com", "time": "Mon Mar 23 03:26:48 2009 -0500" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Mar 23 09:30:37 2009 +0100" }, "message": "tracing/filters: clean up filter_add_subsystem_pred()\n\nImpact: cleanup, memory leak fix\n\nThis patch cleans up filter_add_subsystem_pred():\n\n- searches for the field before creating a copy of the pred\n\n- fixes memory leak in the case a predicate isn\u0027t applied\n\n- if -ENOMEM, makes sure there\u0027s no longer a reference to the\n pred so the caller can free the half-finished filter\n\n- changes the confusing i \u003d\u003d MAX_FILTER_PRED - 1 comparison\n previously remarked upon\n\nThis affects only per-subsystem event filtering.\n\nSigned-off-by: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: \u003d?ISO-8859-1?Q?Fr\u003dE9d\u003dE9ric?\u003d Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c1237796808.7527.40.camel@charm-linux\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ee6cdabc820a29bd607f38d9cb335c3ceddc673b", "tree": "bc4cbebd9abc679bb12b10d19f8ab9a7a23689dd", "parents": [ "75c8b417526529d0a7072e4d93ec99dbd483a6f4" ], "author": { "name": "Tom Zanussi", "email": "tzanussi@gmail.com", "time": "Mon Mar 23 03:26:42 2009 -0500" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Mar 23 09:30:36 2009 +0100" }, "message": "tracing/filters: fix bug in copy_pred()\n\nImpact: fix potential crash on subsystem filter expression freeing\n\nWhen making a copy of the predicate, pred-\u003efield_name needs to be\nduplicated in the copy as well, otherwise bad things can happen due to\nlater multiple frees of the same string.\n\nThis affects only per-subsystem event filtering.\n\nSigned-off-by: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: \u003d?ISO-8859-1?Q?Fr\u003dE9d\u003dE9ric?\u003d Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c1237796802.7527.39.camel@charm-linux\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "75c8b417526529d0a7072e4d93ec99dbd483a6f4", "tree": "6b8e3577c1bde7df9a723a4c76c8d0d0af694271", "parents": [ "b118415bfad6d75792a85ac999e25149db8e6919" ], "author": { "name": "Tom Zanussi", "email": "tzanussi@gmail.com", "time": "Mon Mar 23 03:26:28 2009 -0500" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Mar 23 09:28:07 2009 +0100" }, "message": "tracing/filters: use list_for_each_entry_safe\n\nImpact: cleanup\n\nUse list_for_each_entry_safe instead of list_for_each_entry in\nfind_event_field().\n\nReported-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c1237796788.7527.35.camel@charm-linux\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b118415bfad6d75792a85ac999e25149db8e6919", "tree": "21d3a6caf595bdf090fc9432d13003aef977fc1c", "parents": [ "7e6ea92df3fd7cbe74e7985c6f3e40255c44b201" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Mon Mar 23 00:18:39 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Mar 23 09:22:15 2009 +0100" }, "message": "tracing/events: don\u0027t discard an event after commit\n\nWhen we want to filter an event, the filter test is done after\nthe event is commited to the ring-buffer to be discarded later if\nneeded.\n\nBut a reader could be reading this event while we are trying to discard\nit. Other kind of racy events can even happen because the event is\ncommited and can be read and/or consumed.\n\nWhat we want is to discard the event before committing it.\n\nReported-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nLKML-Reference: \u003c1237763919-21505-1-git-send-email-fweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "7e6ea92df3fd7cbe74e7985c6f3e40255c44b201", "tree": "129b5ef0092098003c582c8192c795c8de5599df", "parents": [ "07edf7121374609709ef1b0889f6e7b8d6a62ec1" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sun Mar 22 23:10:47 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Mar 23 09:22:15 2009 +0100" }, "message": "tracing/ftrace: make nop-tracer use polling wait for events on pipe\n\nImpact: display events when they arrive\n\nNow that the events don\u0027t use wake_up() anymore, we need the nop\ntracer to poll waiting for events on the pipe. Especially because\nnop is useful to look at orphan traces types (traces types that\ndon\u0027t rely on specific tracers) because it doesn\u0027t produce traces\nitself.\n\nAnd unlike other tracers that trigger specific traces periodically,\nnop triggers no traces by itself that can wake him.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c1237759847-21025-5-git-send-email-fweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "07edf7121374609709ef1b0889f6e7b8d6a62ec1", "tree": "ad1649c9546dc3ce23bb2f8609a7459a7ca2006e", "parents": [ "9bd7d099ab3f10dd666da399c064999bae427cd9" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sun Mar 22 23:10:46 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Mar 23 09:22:14 2009 +0100" }, "message": "tracing/events: don\u0027t use wake up for events\n\nImpact: fix hard-lockup with sched switch events\n\nSome ftrace events, such as sched wakeup, can be traced\nwhile the runqueue lock is hold. Since they are using\ntrace_current_buffer_unlock_commit(), they call wake_up()\nwhich can try to grab the runqueue lock too, resulting in\na deadlock.\n\nNow for all event, we call a new helper:\ntrace_nowake_buffer_unlock_commit() which do pretty the same than\ntrace_current_buffer_unlock_commit() except than it doesn\u0027t call\ntrace_wake_up().\n\nReported-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c1237759847-21025-4-git-send-email-fweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "9bd7d099ab3f10dd666da399c064999bae427cd9", "tree": "69a13d68fd947610b9a0115247b3e4b03c196839", "parents": [ "fe9f57f250ab4d781b99504caeb218ca2db14c1a" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sun Mar 22 23:10:43 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Mar 23 09:22:14 2009 +0100" }, "message": "tracing/events: make the filter files writable\n\nWe need the filter files to be writable, the current\nfilter file permissions are only set readable.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nLKML-Reference: \u003c1237759847-21025-1-git-send-email-fweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "fe9f57f250ab4d781b99504caeb218ca2db14c1a", "tree": "dc2452c3a9eb2f7cb220270e4ee0de132db6bb50", "parents": [ "cfb180f3e71b2a280a254c8646a9ab1beab63f84" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Mar 22 18:41:59 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Mar 22 18:43:25 2009 +0100" }, "message": "tracing: add run-time field descriptions for event filtering, kfree fix\n\nImpact: fix potential kfree of random data in (rare) failure path\n\nZero-initialize the field structure.\n\nReported-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nLKML-Reference: \u003c1237710639.7703.46.camel@charm-linux\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "cfb180f3e71b2a280a254c8646a9ab1beab63f84", "tree": "93fb1a319b40851ebb7a3cc0d9ea4cc9a88e919a", "parents": [ "7ce7e4249921d5073e764f7ff7ad83cfa9894bd7" ], "author": { "name": "Tom Zanussi", "email": "tzanussi@gmail.com", "time": "Sun Mar 22 03:31:17 2009 -0500" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Mar 22 18:38:47 2009 +0100" }, "message": "tracing: add per-subsystem filtering\n\nThis patch adds per-subsystem filtering to the event tracing subsystem.\n\nIt adds a \u0027filter\u0027 debugfs file to each subsystem directory. This file\ncan be written to to set filters; reading from it will display the\ncurrent set of filters set for that subsystem.\n\nBasically what it does is propagate the filter down to each event\ncontained in the subsystem. If a particular event doesn\u0027t have a field\nwith the name specified in the filter, it simply doesn\u0027t get set for\nthat event. You can verify whether or not the filter was set for a\nparticular event by looking at the filter file for that event.\n\nAs with per-event filters, compound expressions are supported, echoing\n\u00270\u0027 to the subsystem\u0027s filter file clears all filters in the subsystem,\netc.\n\nSigned-off-by: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c1237710677.7703.49.camel@charm-linux\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "7ce7e4249921d5073e764f7ff7ad83cfa9894bd7", "tree": "d8a3026e85d3230ce39ca99f446abe76a710c337", "parents": [ "2d622719f1572ef31e0616444a515eba3094d050" ], "author": { "name": "Tom Zanussi", "email": "tzanussi@gmail.com", "time": "Sun Mar 22 03:31:04 2009 -0500" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Mar 22 18:38:46 2009 +0100" }, "message": "tracing: add per-event filtering\n\nThis patch adds per-event filtering to the event tracing subsystem.\n\nIt adds a \u0027filter\u0027 debugfs file to each event directory. This file can\nbe written to to set filters; reading from it will display the current\nset of filters set for that event.\n\nBasically, any field listed in the \u0027format\u0027 file for an event can be\nfiltered on (including strings, but not yet other array types) using\neither matching (\u0027\u003d\u003d\u0027) or non-matching (\u0027!\u003d\u0027) \u0027predicates\u0027. A\n\u0027predicate\u0027 can be either a single expression:\n\n # echo pid !\u003d 0 \u003e filter\n\n # cat filter\n pid !\u003d 0\n\nor a compound expression of up to 8 sub-expressions combined using \u0027\u0026\u0026\u0027\nor \u0027||\u0027:\n\n # echo comm \u003d\u003d Xorg \u003e filter\n # echo \"\u0026\u0026 sig !\u003d 29\" \u003e filter\n\n # cat filter\n comm \u003d\u003d Xorg\n \u0026\u0026 sig !\u003d 29\n\nOnly events having field values matching an expression will be available\nin the trace output; non-matching events are discarded.\n\nNote that a compound expression is built up by echoing each\nsub-expression separately - it\u0027s not the most efficient way to do\nthings, but it keeps the parser simple and assumes that compound\nexpressions will be relatively uncommon. In any case, a subsequent\npatch introducing a way to set filters for entire subsystems should\nmitigate any need to do this for lots of events.\n\nSetting a filter without an \u0027\u0026\u0026\u0027 or \u0027||\u0027 clears the previous filter\ncompletely and sets the filter to the new expression:\n\n # cat filter\n comm \u003d\u003d Xorg\n \u0026\u0026 sig !\u003d 29\n\n # echo comm !\u003d Xorg\n\n # cat filter\n comm !\u003d Xorg\n\nTo clear a filter, echo 0 to the filter file:\n\n # echo 0 \u003e filter\n # cat filter\n none\n\nThe limit of 8 predicates for a compound expression is arbitrary - for\nefficiency, it\u0027s implemented as an array of pointers to predicates, and\n8 seemed more than enough for any filter...\n\nSigned-off-by: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c1237710665.7703.48.camel@charm-linux\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "2d622719f1572ef31e0616444a515eba3094d050", "tree": "f9bffcdca6289f141fb53a38dd9f32af8c71efad", "parents": [ "cf027f645e6aee4f0ca6197a6b6a57f327fdb13f" ], "author": { "name": "Tom Zanussi", "email": "tzanussi@gmail.com", "time": "Sun Mar 22 03:30:49 2009 -0500" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Mar 22 18:38:25 2009 +0100" }, "message": "tracing: add ring_buffer_event_discard() to ring buffer\n\nThis patch overloads RINGBUF_TYPE_PADDING to provide a way to discard\nevents from the ring buffer, for the event-filtering mechanism\nintroduced in a subsequent patch.\n\nI did the initial version but thanks to Steven Rostedt for adding\nthe parts that actually made it work. ;-)\n\nSigned-off-by: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b8b94265337f83b7db9c5f429b1769d463d7da8c", "tree": "231694bce8acda1204f95c1991f7f5b7ce5528bd", "parents": [ "a524446fe82f7f38738403a5a080c4910af86a61" ], "author": { "name": "Dmitri Vorobiev", "email": "dmitri.vorobiev@movial.com", "time": "Sun Mar 22 19:11:11 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Mar 22 18:16:54 2009 +0100" }, "message": "tracing: fix four sparse warnings\n\nImpact: cleanup.\n\nThis patch fixes the following sparse warnings:\n\n kernel/trace/trace.c:385:9: warning: symbol \u0027trace_seq_to_buffer\u0027 was\n not declared. Should it be static?\n\n kernel/trace/trace_clock.c:29:13: warning: symbol \u0027trace_clock_local\u0027\n was not declared. Should it be static?\n\n kernel/trace/trace_clock.c:54:13: warning: symbol \u0027trace_clock\u0027 was not\n declared. Should it be static?\n\n kernel/trace/trace_clock.c:74:13: warning: symbol \u0027trace_clock_global\u0027\n was not declared. Should it be static?\n\nSigned-off-by: Dmitri Vorobiev \u003cdmitri.vorobiev@movial.com\u003e\nLKML-Reference: \u003c1237741871-5827-4-git-send-email-dmitri.vorobiev@movial.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "cf027f645e6aee4f0ca6197a6b6a57f327fdb13f", "tree": "f8a20e8707967db5d9140f9069426f410a30dd32", "parents": [ "0cf53ff62b3e9e491ff5e5f05b193fb6ce643047" ], "author": { "name": "Tom Zanussi", "email": "tzanussi@gmail.com", "time": "Sun Mar 22 03:30:39 2009 -0500" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Mar 22 18:11:22 2009 +0100" }, "message": "tracing: add run-time field descriptions for event filtering\n\nThis patch makes the field descriptions defined for event tracing\navailable at run-time, for the event-filtering mechanism introduced\nin a subsequent patch.\n\nThe common event fields are prepended with \u0027common_\u0027 in the format\ndisplay, allowing them to be distinguished from the other fields\nthat might internally have same name and can therefore be\nunambiguously used in filters.\n\nSigned-off-by: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c1237710639.7703.46.camel@charm-linux\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "a524446fe82f7f38738403a5a080c4910af86a61", "tree": "d15127a183d1c2f864136389e5a758ed80a29449", "parents": [ "0cf53ff62b3e9e491ff5e5f05b193fb6ce643047", "09c9e84d474d917d9de5b9011ed2064b03a19677", "505f2b970b2269ce4cb669b3ff4f6479d379cec2" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Mar 22 18:10:02 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Mar 22 18:10:02 2009 +0100" }, "message": "Merge branches \u0027tracing/ftrace\u0027, \u0027tracing/hw-breakpoints\u0027, \u0027tracing/ring-buffer\u0027, \u0027tracing/textedit\u0027 and \u0027linus\u0027 into tracing/core\n" }, { "commit": "0cf53ff62b3e9e491ff5e5f05b193fb6ce643047", "tree": "3a184041819aa922f3b7505fda803e649ee2786a", "parents": [ "cf586b61f80229491127d3c57c06ed93c9f530d3" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sun Mar 22 15:13:07 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Mar 22 15:17:21 2009 +0100" }, "message": "tracing: keep the tracing buffer after self-test failure\n\nInstead of using ftrace_dump_on_oops, it\u0027s far more convenient\nto have the trace leading up to a self-test failure available\nin /debug/tracing/trace.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c1237694675-23509-1-git-send-email-fweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "cf586b61f80229491127d3c57c06ed93c9f530d3", "tree": "3f5e0d9429f32b8ad4f53104a260c8dff349cd9b", "parents": [ "ac199db0189c091f2863312061c0575937f68810" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sun Mar 22 05:04:35 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Mar 22 14:06:40 2009 +0100" }, "message": "tracing/function-graph-tracer: prevent hangs during self-tests\n\nImpact: detect tracing related hangs\n\nSometimes, with some configs, the function graph tracer can make\nthe timer interrupt too much slow, hanging the kernel in an endless\nloop of timer interrupts servicing.\n\nAs suggested by Ingo, this patch brings a watchdog which stops the\nselftest after a defined number of functions traced, definitely\ndisabling this tracer.\n\nFor those who want to debug the cause of the function graph trace\nhang, you can pass the ftrace_dump_on_oops kernel parameter to dump\nthe traces after this hang detection.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c1237694675-23509-1-git-send-email-fweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b125130b22d67f249beba10b71a254558b5279d0", "tree": "f42f4f732a2d7920009f34d798d1803def38ea44", "parents": [ "cd649b8bb830d65c57c3c8b98d57b5402256d8bd" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Fri Mar 20 10:34:00 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Mar 21 16:17:24 2009 +0100" }, "message": "blktrace: avoid accessing NULL bdev-\u003ebd_disk\n\nbdev-\u003ebd_disk can be NULL, if the block device is not opened.\n\nTry this against an unmounted partition, and you\u0027ll see NULL dereference:\n\n # echo 1 \u003e /sys/block/sda/sda5/enable\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.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\nLKML-Reference: \u003c49C30098.6080107@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "cd649b8bb830d65c57c3c8b98d57b5402256d8bd", "tree": "e1cfb4a2d6a14f6459913ba7b40cc778f1fcb723", "parents": [ "15152e448b693fa41de40f1e40ffbe717a3aab88" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Fri Mar 20 11:33:55 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Mar 21 16:17:08 2009 +0100" }, "message": "blktrace: remove sysfs_blk_trace_enable_show/store()\n\nsysfs_blk_trace_enable_show()/store() share most of code with\nsysfs_blk_trace_attr_show()/store().\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.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\nLKML-Reference: \u003c49C30EA3.1060004@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "15152e448b693fa41de40f1e40ffbe717a3aab88", "tree": "0fec87dd1850aa8e6e8be21bebb3ce0bd3bf148a", "parents": [ "cbe28296eb1ac441b35cf45804d0ae808add7dd1" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Fri Mar 20 09:49:08 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Mar 21 16:16:54 2009 +0100" }, "message": "blktrace: report EBUSY correctly\n\nblk_trace_remove_queue() returns EINVAL if q-\u003eblk_trace \u003d\u003d NULL,\nbut blk_trace_setup_queue() doesn\u0027t return EBUSY if\nq-\u003eblk_trace !\u003d NULL.\n\n # echo 0 \u003e sdaX/trace/enable\n # echo 0 \u003e sdaX/trace/enable\n bash: echo: write error: Invalid argument\n # echo 1 \u003e sdaX/trace/enable\n # echo 1 \u003e sdaX/trace/enable\n (should return EBUSY)\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c49C2F614.2010101@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "cbe28296eb1ac441b35cf45804d0ae808add7dd1", "tree": "c387d2697ea153cadb629e3d664960bf12b8bc84", "parents": [ "3c289ba7c320560ee74979a8895141c829046a2d" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Fri Mar 20 09:48:47 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Mar 21 16:16:37 2009 +0100" }, "message": "blktrace: don\u0027t increase blk_probes_ref if failed to setup blk trace\n\ndo_blk_trace_setup() may return EBUSY, but the current code\ndoesn\u0027t decrease blk_probes_ref in this case.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.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\nLKML-Reference: \u003c49C2F5FF.80002@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "3c289ba7c320560ee74979a8895141c829046a2d", "tree": "293c9d1d931c06acf06998a6ea052193c0a8cf4e", "parents": [ "5006ea73f38caef6065d1136808413813271633f" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Fri Mar 20 09:48:26 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Mar 21 16:16:25 2009 +0100" }, "message": "blktrace: remove blk_probe_mutex\n\nblk_register_tracepoints() always returns 0, so make it return void,\nthus we don\u0027t need to use blk_probe_mutex to protect blk_probes_ref.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.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\nLKML-Reference: \u003c49C2F5EA.8060606@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "5006ea73f38caef6065d1136808413813271633f", "tree": "296d4f15e625303cdd111f29d990cef3c3be85c5", "parents": [ "1a17662ea033674a58bad3603531b0b5d42572f6" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Fri Mar 20 09:48:03 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Mar 21 16:16:13 2009 +0100" }, "message": "blktrace: make blk_tracer_enabled a bool flag\n\nIt doesn\u0027t have to be a counter, and it can be a bool flag instead.\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\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c49C2F5D3.8090104@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "1a17662ea033674a58bad3603531b0b5d42572f6", "tree": "157c7cdeab1192136f94ffe8098a368aea9c1437", "parents": [ "22de89b371a18086162eacd9f8c960299334ab01" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Fri Mar 20 09:47:30 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Mar 21 16:15:47 2009 +0100" }, "message": "blktrace: fix possible memory leak\n\nWhen we failed to create \"block\" debugfs dir, we should do some\ncleanups.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.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\nLKML-Reference: \u003c49C2F5B2.8000800@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "09c9e84d474d917d9de5b9011ed2064b03a19677", "tree": "c725429e52c2c06822f189d05c8fe9d811e17891", "parents": [ "22de89b371a18086162eacd9f8c960299334ab01" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sat Mar 21 04:33:36 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Mar 21 10:54:10 2009 +0100" }, "message": "tracing/ring-buffer: don\u0027t annotate rb_cpu_notify with __cpuinit\n\nImpact: remove a section warning\n\nCONFIG_DEBUG_SECTION_MISMATCH raises the following warning on -tip:\n\n WARNING: kernel/trace/built-in.o(.text+0x5bc5): Section mismatch in\n reference from the function ring_buffer_alloc() to the function\n .cpuinit.text:rb_cpu_notify()\n The function ring_buffer_alloc() references\n the function __cpuinit rb_cpu_notify().\n\nThis is actually harmless. The code in the ring buffer don\u0027t build\nrb_cpu_notify and other cpu hotplug stuffs when !CONFIG_HOTPLUG_CPU\nso we have no risk to reference freed memory here (it would even\nbe harmless if we unconditionally build it because register_cpu_notifier\nwould do nothing when !CONFIG_HOTPLUG_CPU.\n\nBut since ring_buffer_alloc() can be called everytime, we don\u0027t want it\nto be annotated with __cpuinit so we drop the __cpuinit from\nrb_cpu_notify.\n\nThis is not a waste of memory because it is only defined and used on\nCONFIG_HOTPLUG_CPU.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c1237606416-22268-1-git-send-email-fweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ac199db0189c091f2863312061c0575937f68810", "tree": "0068aaa77ca00102ca60754eb32329f06821bba0", "parents": [ "28bea271e58e429eccfad3d7ee2ad12d6ee015bf" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu Mar 19 20:26:15 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Mar 20 10:17:07 2009 +0100" }, "message": "ftrace: event profile hooks\n\nImpact: new tracing infrastructure feature\n\nProvide infrastructure to generate software perf counter events\nfrom tracepoints.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c20090319194233.557364871@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "28bea271e58e429eccfad3d7ee2ad12d6ee015bf", "tree": "00b5cf70bf147e7fad3b438835d21b093a2b9c28", "parents": [ "23725aeeab10ba02bcf10ec49ad73146b54cb52f" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu Mar 19 20:26:14 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Mar 20 10:17:06 2009 +0100" }, "message": "ftrace: ensure every event gets an id\n\nImpact: widen user-space visibe event IDs to all events\n\nPreviously only TRACE_EVENT events got ids, because only they\ngenerated raw output which needs to be demuxed from the trace.\n\nIn order to provide a unique ID for each event, register everybody,\nregardless.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c20090319194233.464914218@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "23725aeeab10ba02bcf10ec49ad73146b54cb52f", "tree": "02d5932639e8d76be42a057d8d6ff73026949d12", "parents": [ "44fc6ee92356aa3be31798ced220ab5abd898781" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu Mar 19 20:26:13 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Mar 20 10:17:05 2009 +0100" }, "message": "ftrace: provide an id file for each event\n\nSince not every event has a format file to read the id from,\nexpose it explicitly in a separate file.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c20090319194233.372534033@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" } ], "next": "44fc6ee92356aa3be31798ced220ab5abd898781" }