)]}' { "log": [ { "commit": "4a88d44ab17da5f8a238050d1b43dfd2e204bc2f", "tree": "b95cad275fcc18646873f141ca456d273108a86f", "parents": [ "c58b43218c1a04a0bcf338ea47406c759ac28e11" ], "author": { "name": "Albin Tonnerre", "email": "albin.tonnerre@free-electrons.com", "time": "Mon Aug 31 22:40:08 2009 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Fri Sep 04 23:30:38 2009 +0200" }, "message": "tracing: Remove mentioning of legacy latency_trace file from documentation\n\nThe latency_trace file got removed a while back by commit\n886b5b73d71e4027d7dc6c14f5f7ab102201ea6b and has been replaced\nby the latency-format option.\n\nThis patch fixes the documentation by reflecting this change.\n\nChanges since v1:\n - mention that the trace format is configurable through the\n latency-format option\n - Fix a couple mistakes related to the timestamps\n\nSigned-off-by: Albin Tonnerre \u003calbin.tonnerre@free-electrons.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c20090831204007.GE4237@pc-ras4041.res.insa\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "c58b43218c1a04a0bcf338ea47406c759ac28e11", "tree": "e13e33f195a13b4c959494ee7d059b87c2167be3", "parents": [ "8e254c1d183f0225ad21f9049641529e56cce4da" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Tue Sep 01 13:31:38 2009 +0800" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Fri Sep 04 23:22:33 2009 +0200" }, "message": "tracing/filters: Defer pred allocation, fix memory leak\n\nThe predicates of an event and their filter structure are allocated\nwhen we create an event filter for the first time.\n\nThese objects must be created once but each time we come with a new\nfilter, we overwrite such pre-existing allocation, if any.\n\nThus, this patch checks if the filter has already been allocated\nbefore going ahead.\n\nSpotted-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nLKML-Reference: \u003c4A9CB1BA.3060402@cn.fujitsu.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "8e254c1d183f0225ad21f9049641529e56cce4da", "tree": "5b559726a38b60c6bc92b3c8667c676db1038701", "parents": [ "73222acf966792c7fda219724af963339be32e62" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Mon Aug 31 16:49:41 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 31 10:58:08 2009 +0200" }, "message": "tracing/filters: Defer pred allocation\n\ninit_preds() allocates about 5392 bytes of memory (on x86_32) for\na TRACE_EVENT. With my config, at system boot total memory occupied\nis:\n\n\t5392 * (642 + 15) \u003d\u003d 3459KB\n\n642 \u003d\u003d cat available_events | wc -l\n15 \u003d\u003d number of dirs in events/ftrace\n\nThat\u0027s quite a lot, so we\u0027d better defer memory allocation util\nit\u0027s needed, that\u0027s when filter is used.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nLKML-Reference: \u003c4A9B8EA5.6020700@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "73222acf966792c7fda219724af963339be32e62", "tree": "83109ded0bcfdc6a0ec5e8ea6becffd7ac41ec6a", "parents": [ "0dd7b74787eaf7858c6c573353a83c3e2766e674", "5d4a9dba2d7fbab69f00dedd430d1788834a055a" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Aug 29 13:06:05 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Aug 29 13:06:05 2009 +0200" }, "message": "Merge branch \u0027tip/tracing/core\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into tracing/core\n" }, { "commit": "0dd7b74787eaf7858c6c573353a83c3e2766e674", "tree": "110fd833b620a60e34aa00aaf316f8fd80ee7f86", "parents": [ "66c6e29f24a50173fc1e761c3e2483c8d64e3b1a" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Fri Aug 28 00:50:06 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Aug 28 13:55:04 2009 +0200" }, "message": "tracing: Fix double CPP substitution in TRACE_EVENT_FN\n\nTRACE_EVENT_FN relays on TRACE_EVENT by reprocessing its parameters\ninto the ftrace events CPP macro. This leads to a double substitution\nin some cases.\n\nFor example, a bad consequence is a format always prefixed by\n\"%s, %s\\n\" for every TRACE_EVENT_FN based events.\n\nEg:\n\tcat /debug/tracing/events/syscalls/sys_enter/format\n\t[...]\n\tprint fmt: \"%s, %s\\n\", \"\\\"NR %ld (%lx, %lx, %lx, %lx, %lx, %lx)\\\"\",\\\n\t\"REC-\u003eid, REC-\u003eargs[0], REC-\u003eargs[1], REC-\u003eargs[2], REC-\u003eargs[3],\\\n\tREC-\u003eargs[4], REC-\u003eargs[5]\"\n\nThis creates a failure in post-processing tools such as perf trace or\ntrace-cmd.\n\nThen drop this double substitution and replace it by a new __cpparg()\nmacro that relays CPP arguments containing commas.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Josh Stone \u003cjistone@redhat.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003csrostedt@redhat.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nLKML-Reference: \u003c1251413406-6704-1-git-send-email-fweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "66c6e29f24a50173fc1e761c3e2483c8d64e3b1a", "tree": "15b9d212d02d6e1bae8696d9c5da9a778455f9c0", "parents": [ "6c347d43eea29221a8ebab9ff9cbe7a00cddac98", "117226d15850387b55fd01675917ee4fcb9699e8" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Aug 28 13:53:07 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Aug 28 13:53:07 2009 +0200" }, "message": "Merge branch \u0027tracing/core\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing into tracing/core\n" }, { "commit": "5d4a9dba2d7fbab69f00dedd430d1788834a055a", "tree": "a57ec209fc1ac86d7acbd67164b068ecdadd6317", "parents": [ "c0729be99cb2b9d9749256254f1c40a801835896" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Thu Aug 27 16:52:21 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Thu Aug 27 16:58:05 2009 -0400" }, "message": "tracing: only show tracing_max_latency when latency tracer configured\n\nThe tracing_max_latency file should only be present when one of the\nlatency tracers ({preempt|irqs}off, wakeup*) are enabled.\n\nThis patch also removes tracing_thresh when latency tracers are not\nenabled, as well as compiles out code that is only used for latency\ntracers.\n\nReported-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "c0729be99cb2b9d9749256254f1c40a801835896", "tree": "f7cb3d86ed28f2f42dcaa23035f2ecc30e363137", "parents": [ "6c347d43eea29221a8ebab9ff9cbe7a00cddac98" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Wed Aug 26 22:23:52 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Thu Aug 27 16:58:03 2009 -0400" }, "message": "tracing: remove legacy select of MARKERS by context switch tracing\n\nThe context switch tracer was made before tracepoints were mature, and\nthe original version used markers. This is no longer true and this\npatch removes the select.\n\nReported-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "6c347d43eea29221a8ebab9ff9cbe7a00cddac98", "tree": "e5afc2f493816fa1401a4ef4724167e3972cd209", "parents": [ "35dce1a99d010f3d738af4ce1b9b77302fdfe69c" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Thu Aug 27 18:17:34 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Aug 27 18:32:54 2009 +0200" }, "message": "tracing: Undef TRACE_EVENT_FN between trace events headers inclusion\n\nThe recent commit:\n\n\ttracing/events: fix the include file dependencies\n\nfixed a file dependency problem while including more than\none trace event header file.\n\nThis fix undefined TRACE_EVENT after an event header macro\npreprocessing in order to make tracepoint.h able to correctly declare\nthe tracepoints necessary for the next event header file.\n\nBut now we also need to undefine TRACE_EVENT_FN at the end of an event\nheader file preprocessing for the same reason.\n\nThis fixes the following build error:\n\nIn file included from include/trace/events/napi.h:5,\n from net/core/net-traces.c:28:\ninclude/linux/tracepoint.h:285:1: warning: \"TRACE_EVENT_FN\" redefined\nIn file included from include/trace/define_trace.h:61,\n from include/trace/events/skb.h:40,\n from net/core/net-traces.c:27:\ninclude/trace/ftrace.h:50:1: warning: this is the location of the previous definition\nIn file included from include/trace/events/napi.h:5,\n from net/core/net-traces.c:28:\ninclude/linux/tracepoint.h:285:1: warning: \"TRACE_EVENT_FN\" redefined\nIn file included from include/trace/define_trace.h:61,\n from include/trace/events/skb.h:40,\n from net/core/net-traces.c:27:\ninclude/trace/ftrace.h:50:1: warning: this is the location of the previous definition\n\nReported-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nCc: Xiao Guangrong \u003cxiaoguangrong@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c20090827161732.GA7618@nowhere\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "117226d15850387b55fd01675917ee4fcb9699e8", "tree": "462684e20b72a641311850c9d8d11974ab04b0a0", "parents": [ "57421dbbdc932d65f0e6a41ebb027a2bfe3d0669" ], "author": { "name": "Jason Baron", "email": "jbaron@redhat.com", "time": "Mon Aug 24 17:40:26 2009 -0400" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Aug 26 21:30:39 2009 +0200" }, "message": "tracing: Remove FTRACE_SYSCALL_MAX definitions\n\nRemove the FTRACE_SYSCALL_MAX definitions now that we have converted the\nsyscall event tracing code to use NR_syscalls.\n\nSigned-off-by: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Josh Stone \u003cjistone@redhat.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: H. Peter Anwin \u003chpa@zytor.com\u003e\nCc: Hendrik Brueckner \u003cbrueckner@linux.vnet.ibm.com\u003e\nCc: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nLKML-Reference: \u003cf2240cdc8f0b1ca7617390c8f5ec90ba2bd348cf.1251146513.git.jbaron@redhat.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "57421dbbdc932d65f0e6a41ebb027a2bfe3d0669", "tree": "0dec1f947cc6d3e9d5fe813c31cbaa960c9ed7b6", "parents": [ "a5a2f8e2acb991327952c45a13f5441fc09dffd6" ], "author": { "name": "Jason Baron", "email": "jbaron@redhat.com", "time": "Mon Aug 24 17:40:22 2009 -0400" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Aug 26 21:30:02 2009 +0200" }, "message": "tracing: Convert event tracing code to use NR_syscalls\n\nConvert the syscalls event tracing code to use NR_syscalls, instead of\nFTRACE_SYSCALL_MAX. NR_syscalls is standard accross most arches, and\nreduces code confusion/complexity.\n\nSigned-off-by: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Josh Stone \u003cjistone@redhat.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: H. Peter Anwin \u003chpa@zytor.com\u003e\nCc: Hendrik Brueckner \u003cbrueckner@linux.vnet.ibm.com\u003e\nCc: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nLKML-Reference: \u003c9b4f1a84ecae57cc6599412772efa36f0d2b815b.1251146513.git.jbaron@redhat.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "a5a2f8e2acb991327952c45a13f5441fc09dffd6", "tree": "6707f1b387132a19a1f1a8ff39c6df6405400183", "parents": [ "dd86dda24cc1dc70031a7d9250dc3c0c430a50e2" ], "author": { "name": "Jason Baron", "email": "jbaron@redhat.com", "time": "Wed Aug 26 12:09:10 2009 -0400" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Aug 26 21:29:58 2009 +0200" }, "message": "tracing: Define NR_syscalls for x86_64\n\nExpress the available number of syscalls in a standard way by defining\nNR_syscalls.\n\nThe common way to define it is to place its definition in asm/unistd.h\nHowever, the number of syscalls is defined using __NR_syscall_max in\nx86-64 after building a dynamic header file \"asm-offsets.h\"\n\nThe source file that generates this header, asm-offsets-64.c includes\nunistd.h, then if we want to express NR_syscalls from __NR_syscall_max\nin unistd.h only after generating the dynamic header file, we need a\nwatchguard.\n\nIf unistd.h is included from asm-offsets-64.c, then we are generating\nasm-offset.h which defines __NR_syscall_max. At this time, we don\u0027t\nwant to (we can\u0027t) define NR_syscalls, then we do nothing.\nOtherwise we define NR_syscalls because we know asm-offsets.h has\nbeen generated.\n\nSigned-off-by: Jason Baron \u003cjbaron@redhat.com\u003e\nAcked-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Josh Stone \u003cjistone@redhat.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: H. Peter Anwin \u003chpa@zytor.com\u003e\nCc: Hendrik Brueckner \u003cbrueckner@linux.vnet.ibm.com\u003e\nCc: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nLKML-Reference: \u003c20090826160910.GB2658@redhat.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "dd86dda24cc1dc70031a7d9250dc3c0c430a50e2", "tree": "3f890df69add4161b72378f0625cef9376486eb3", "parents": [ "cc3b13c11c567c69a6356be98d0c03ff11541d5c" ], "author": { "name": "Jason Baron", "email": "jbaron@redhat.com", "time": "Mon Aug 24 17:40:14 2009 -0400" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Aug 26 21:29:55 2009 +0200" }, "message": "tracing: Define NR_syscalls for x86 (32)\n\nAdd a NR_syscalls #define for x86. This is used in the syscall events\ntracing code. Todo: make it dynamic like x86_64.\n\nNR_syscalls is the usual name used to determine the number of syscalls\nsupported by the current arch. We want to unify the use of this number\nacross archs that support the syscall tracing. This also prepare to move\nsome of the arch code to core code in the syscall tracing area.\n\nSigned-off-by: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Josh Stone \u003cjistone@redhat.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: H. Peter Anwin \u003chpa@zytor.com\u003e\nCc: Hendrik Brueckner \u003cbrueckner@linux.vnet.ibm.com\u003e\nCc: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nLKML-Reference: \u003c0f33c0f96d198fccc3ddd9ff7f5334ff5cb42706.1251146513.git.jbaron@redhat.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "cc3b13c11c567c69a6356be98d0c03ff11541d5c", "tree": "7665852e54b8ad951bfdbd898922fa3c54567f43", "parents": [ "cd0980fc8add25e8ab12fcf1051c0f20cbc7c0c0" ], "author": { "name": "Hendrik Brueckner", "email": "brueckner@linux.vnet.ibm.com", "time": "Tue Aug 25 18:02:37 2009 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Aug 26 21:29:52 2009 +0200" }, "message": "tracing: Don\u0027t trace kernel thread syscalls\n\nKernel threads don\u0027t call syscalls using the sysenter/sysexit\npath. Instead they directly call the sys_* or do_* functions\nthat implement the syscalls inside the kernel.\n\nThe current syscall tracepoints only bind the sysenter/sysexit\npath, then it has no effect to trace the kernel thread calls\nto syscalls in that path.\nSetting the TIF_SYSCALL_TRACEPOINT flag is then useless for these.\n\nActually there is only one case when a kernel thread can reach the\nusual syscall exit tracing path: when we create a kernel thread, the\nchild comes to ret_from_fork and is the fork() return is then traced.\nBut this information alone is useless, then we don\u0027t want to set the\nTIF flags for these threads.\n\nKernel threads have task_struct-\u003emm set to NULL.\n(Thanks to Heiko for that hint ;-)\nThe idea is then to check the mm field in syscall_regfunc() and\nset the flag accordingly.\n\nSigned-off-by: Hendrik Brueckner \u003cbrueckner@linux.vnet.ibm.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nCc: Hendrik Brueckner \u003cbrueckner@linux.vnet.ibm.com\u003e\nLKML-Reference: \u003c20090825160237.GG4639@cetus.boeblingen.de.ibm.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "cd0980fc8add25e8ab12fcf1051c0f20cbc7c0c0", "tree": "307fe4d60c058c016c650366db2c2761b20cfd6d", "parents": [ "7515bf59f87f19b2a17972b74230d2f91756fe3c" ], "author": { "name": "Hendrik Brueckner", "email": "brueckner@linux.vnet.ibm.com", "time": "Tue Aug 25 14:50:27 2009 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Aug 26 21:29:48 2009 +0200" }, "message": "tracing: Check invalid syscall nr while tracing syscalls\n\nMost arch syscall_get_nr() implementations returns -1 if the syscall\nnumber is not valid. Accessing the bit field without a check might\nresult in a kernel oops (at least I saw it on s390 for ftrace selftest).\n\nBefore this change, this problem did not occur, because the invalid\nsyscall number (-1) caused syscall_nr_to_meta() to return NULL.\n\nThere are at least two scenarios where syscall_get_nr() can return -1:\n\n1. For example, ptrace stores an invalid syscall number, and thus,\n tracing code resets it.\n (see do_syscall_trace_enter in arch/s390/kernel/ptrace.c)\n\n2. The syscall_regfunc() (kernel/tracepoint.c) sets the\n TIF_SYSCALL_FTRACE (now: TIF_SYSCALL_TRACEPOINT) flag for all threads\n which include kernel threads.\n However, the ftrace selftest triggers a kernel oops when testing\n syscall trace points:\n - The kernel thread is started as ususal (do_fork()),\n - tracing code sets TIF_SYSCALL_FTRACE,\n - the ret_from_fork() function is triggered and starts\n\tftrace_syscall_exit() with an invalid syscall number.\n\nTo avoid these scenarios, I suggest to check the syscall_nr.\n\nFor instance, the ftrace selftest fails for s390 (with config option\nCONFIG_FTRACE_SYSCALLS set) and produces the following kernel oops.\n\nUnable to handle kernel pointer dereference at virtual kernel address 2000000000\n\nOops: 0038 [#1] PREEMPT SMP\nModules linked in:\nCPU: 0 Not tainted 2.6.31-rc6-next-20090819-dirty #18\nProcess kthreadd (pid: 818, task: 000000003ea207e8, ksp: 000000003e813eb8)\nKrnl PSW : 0704100180000000 00000000000ea54c (ftrace_syscall_exit+0x58/0xdc)\n R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:0 CC:1 PM:0 EA:3\nKrnl GPRS: 0000000000000000 00000000000e0000 ffffffffffffffff 20000000008c2650\n 0000000000000007 0000000000000000 0000000000000000 0000000000000000\n 0000000000000000 0000000000000000 ffffffffffffffff 000000003e813d78\n 000000003e813f58 0000000000505ba8 000000003e813e18 000000003e813d78\nKrnl Code: 00000000000ea540: e330d0000008 ag %r3,0(%r13)\n 00000000000ea546: a7480007 lhi %r4,7\n 00000000000ea54a: 1442 nr %r4,%r2\n \u003e00000000000ea54c: e31030000090 llgc %r1,0(%r3)\n 00000000000ea552: 5410d008 n %r1,8(%r13)\n 00000000000ea556: 8a104000 sra %r1,0(%r4)\n 00000000000ea55a: 5410d00c n %r1,12(%r13)\n 00000000000ea55e: 1211 ltr %r1,%r1\nCall Trace:\n([\u003c0000000000000000\u003e] 0x0)\n [\u003c000000000001fa22\u003e] do_syscall_trace_exit+0x132/0x18c\n [\u003c000000000002d0c4\u003e] sysc_return+0x0/0x8\n [\u003c000000000001c738\u003e] kernel_thread_starter+0x0/0xc\nLast Breaking-Event-Address:\n [\u003c00000000000ea51e\u003e] ftrace_syscall_exit+0x2a/0xdc\n\nSigned-off-by: Hendrik Brueckner \u003cbrueckner@linux.vnet.ibm.com\u003e\nAcked-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nLKML-Reference: \u003c20090825125027.GE4639@cetus.boeblingen.de.ibm.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "7515bf59f87f19b2a17972b74230d2f91756fe3c", "tree": "00181c3dfc6b4301e8aa7316a4f8459c4eae73af", "parents": [ "35dce1a99d010f3d738af4ce1b9b77302fdfe69c" ], "author": { "name": "Hendrik Brueckner", "email": "brueckner@linux.vnet.ibm.com", "time": "Tue Aug 25 14:31:11 2009 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Aug 26 21:29:44 2009 +0200" }, "message": "tracing: Add syscall tracepoints - s390 arch update\n\nThis patch includes s390 arch updates to synchronize with latest\ncore changes in the syscalls tracing area.\n\n- tracing: Map syscall name to number (syscall_name_to_nr())\n- tracing: Call arch_init_ftrace_syscalls at boot\n- tracing: add support tracepoint ids (set_syscall_{enter,exit}_id())\n\nSigned-off-by: Hendrik Brueckner \u003cbrueckner@linux.vnet.ibm.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nLKML-Reference: \u003c20090825123111.GD4639@cetus.boeblingen.de.ibm.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "35dce1a99d010f3d738af4ce1b9b77302fdfe69c", "tree": "e34a37de965a79a2ae301de4d0557f500111dde6", "parents": [ "7cb2e3ee2aeec5b83ecadba929a2dc575dd4008f", "1c569f0264ea629c10bbab471dd0626ce4d3f19f" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Aug 26 08:29:02 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Aug 26 08:29:02 2009 +0200" }, "message": "Merge branch \u0027tracing/core\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing into tracing/core\n\nConflicts:\n\tinclude/linux/tracepoint.h\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "7cb2e3ee2aeec5b83ecadba929a2dc575dd4008f", "tree": "8918c12cac3cd816bf3dfaafc3fac46e36f4a73d", "parents": [ "5ac35daa9343936038a3c9c4f4d6d3fe6a2a7bd8" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Wed Aug 26 00:32:37 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Aug 26 00:32:37 2009 -0400" }, "message": "tracing: add comments to explain TRACE_EVENT out of protection\n\nThe commit:\n commit 5ac35daa9343936038a3c9c4f4d6d3fe6a2a7bd8\n Author: Xiao Guangrong \u003cxiaoguangrong@cn.fujitsu.com\u003e\n tracing/events: fix the include file dependencies\n\nMoved the TRACE_EVENT out of the ifdef protection of tracepoints.h\nbut uses the define of TRACE_EVENT itself as protection. This patch\nadds comments to explain why.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "5ac35daa9343936038a3c9c4f4d6d3fe6a2a7bd8", "tree": "0810db04bd8ad675aee30681576903e393e9d4c6", "parents": [ "5079f3261ffd7fe4a537679af695f2328943a245" ], "author": { "name": "Xiao Guangrong", "email": "xiaoguangrong@cn.fujitsu.com", "time": "Tue Aug 25 14:06:22 2009 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Aug 26 00:32:09 2009 -0400" }, "message": "tracing/events: fix the include file dependencies\n\nThe TRACE_EVENT depends on the include/linux/tracepoint.h first\nand include/trace/ftrace.h later, if we include the ftrace.h early,\na building error will occur.\n\nBoth define TRACE_EVENT in trace_a.h and trace_b.h, if we include\nthose in .c file, like this:\n\n#define CREATE_TRACE_POINTS\ninclude \u003ctrace/events/trace_a.h\u003e\ninclude \u003ctrace/events/trace_b.h\u003e\n\nThe above will not work, because the TRACE_EVENT was re-defined by\nthe previous .h file.\n\nReported-by: Wei Yongjun \u003cyjwei@cn.fujitsu.com\u003e\nSigned-off-by: Xiao Guangrong \u003cxiaoguangrong@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4A937F5E.3020802@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "5079f3261ffd7fe4a537679af695f2328943a245", "tree": "1f9ab5128f37c3628979496610bc862b4a321cd6", "parents": [ "87a342f5db69d53ea70493bb1ec69c9047677038" ], "author": { "name": "Zhaolei", "email": "zhaolei@cn.fujitsu.com", "time": "Tue Aug 25 16:12:56 2009 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Aug 26 00:32:08 2009 -0400" }, "message": "ftrace: Move setting of clock-source out of options\n\nThere are many clock sources for the tracing system but we can only\nenable/disable one at a time with the trace/options file.\nWe can move the setting of clock-source out of options and add a separate\nfile for it:\n # cat trace_clock\n [local] global\n # echo global \u003e trace_clock\n # cat trace_clock\n local [global]\n\nSigned-off-by: Zhao Lei \u003czhaolei@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4A939D08.6050604@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "87a342f5db69d53ea70493bb1ec69c9047677038", "tree": "89ec97b3a32d6508d10f1598201e48a24c08c46e", "parents": [ "43b51ead3f752a3935116e5b1a94254b8573734f" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Fri Aug 07 10:33:43 2009 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Aug 26 00:32:07 2009 -0400" }, "message": "tracing/filters: Support filtering for char * strings\n\nUsually, char * entries are dangerous in traces because the string\ncan be released whereas a pointer to it can still wait to be read from\nthe ring buffer.\n\nBut sometimes we can assume it\u0027s safe, like in case of RO data\n(eg: __file__ or __line__, used in bkl trace event). If these RO data\nare in a module and so is the call to the trace event, then it\u0027s safe,\nbecause the ring buffer will be flushed once this module get unloaded.\n\nTo allow char * to be treated as a string:\n\n\tTRACE_EVENT(...,\n\n\t\tTP_STRUCT__entry(\n\t\t\t__field_ext(const char *, name, FILTER_PTR_STRING)\n\t\t\t...\n\t\t)\n\n\t\t...\n\t);\n\nThe filtering will not dereference \"char *\" unless the developer\nexplicitly sets FILTER_PTR_STR in __field_ext.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4A7B9287.90205@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "43b51ead3f752a3935116e5b1a94254b8573734f", "tree": "5d9e88635c85ba7b1d273dea3c4d8d96e5000154", "parents": [ "aa38e9fc3ea804290efd3a39316d7f7e6c945800" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Fri Aug 07 10:33:22 2009 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Aug 26 00:32:06 2009 -0400" }, "message": "tracing/filters: Add __field_ext() to TRACE_EVENT\n\nAdd __field_ext(), so a field can be assigned to a specific\nfilter_type, which matches a corresponding filter function.\n\nFor example, a later patch will allow this:\n\t__field_ext(const char *, str, FILTER_PTR_STR);\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4A7B9272.6050709@cn.fujitsu.com\u003e\n\n[\n Fixed a -1 to FILTER_OTHER\n Forward ported to latest kernel.\n]\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "aa38e9fc3ea804290efd3a39316d7f7e6c945800", "tree": "8f9766b20c9006c1373f11c927fb46441e01df0f", "parents": [ "6591b493871cf9b17de2ba272edb8ab529a8058b" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Fri Aug 07 10:33:02 2009 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Aug 26 00:32:06 2009 -0400" }, "message": "tracing/filters: Add filter_type to struct ftrace_event_field\n\nThe type of a field is stored as a string in @type, and here\nwe add @filter_type which is an enum value.\n\nThis prepares for later patches, so we can specifically assign\ndifferent @filter_type for the same @type.\n\nFor example normally a \"char *\" field is treated as a ptr,\nbut we may want it to be treated as a string when doing filting.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4A7B925E.9030605@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "6591b493871cf9b17de2ba272edb8ab529a8058b", "tree": "981dacab445637a5b3e6125c4571b9633f9417d1", "parents": [ "f0693c8bd5c50380b299e19d19e7640024640b42" ], "author": { "name": "Josh Triplett", "email": "josh@joshtriplett.org", "time": "Thu Aug 06 07:57:01 2009 -0700" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Aug 26 00:32:04 2009 -0400" }, "message": "tracing: Add vim script to enable folding for function_graph traces\n\nfunction_graph traces look like nested function calls, complete with\nbraces denoting the start and end of functions. function-graph-fold.vim\nteaches vim how to fold these functions, to make it more convenient to\nbrowse them.\n\nTo use, :source function-graph-fold.vim while viewing a function_graph\ntrace, or use \"view -S function-graph-fold.vim some-trace\" to load it\nfrom the command-line together with a trace. You can then use the usual\nvim fold commands, such as \"za\", to open and close nested functions.\nWhile closed, a fold will show the total time taken for a call, as would\nnormally appear on the line with the closing brace. Folded functions\nwill not include finish_task_switch(), so folding should remain\nrelatively sane even through a context switch.\n\nNote that this will almost certainly only work well with a single-CPU\ntrace (e.g. trace-cmd report --cpu 1). It also takes some time to run\n(a few seconds for a large trace on my laptop). Nevertheless, I found\nit very handy to get an overview of a trace and then drill down on\nproblematic calls.\n\nSigned-off-by: Josh Triplett \u003cjosh@joshtriplett.org\u003e\nLKML-Reference: \u003c20090806145701.GB7661@feather\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "f0693c8bd5c50380b299e19d19e7640024640b42", "tree": "a14b3e0cc80de7315c0be3f7880a5001a48f2c02", "parents": [ "d88cb582325830698de5071fa8b8c9e933dbbcad" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Thu Aug 06 14:59:32 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Aug 26 00:32:03 2009 -0400" }, "message": "tracing/sched: show CPU task wakes up on in trace event\n\nWhile debugging the scheduler push / pull algorithm, I found\nit very annoying that the sched wake up events did not show\nthe CPU that the task was waking on. In order to analyze the\nscheduler, I needed that information.\n\nThis patch adds recording of the CPU that a task is waking up\non.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "1c569f0264ea629c10bbab471dd0626ce4d3f19f", "tree": "00fcbf85a7318c568f468518c3aa665a200c871e", "parents": [ "97419875865859fd2403e66266c02ce028e2f5ab" ], "author": { "name": "Josh Stone", "email": "jistone@redhat.com", "time": "Mon Aug 24 14:43:14 2009 -0700" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Aug 26 00:41:48 2009 +0200" }, "message": "tracing: Create generic syscall TRACE_EVENTs\n\nThis converts the syscall_enter/exit tracepoints into TRACE_EVENTs, so\nyou can have generic ftrace events that capture all system calls with\narguments and return values. These generic events are also renamed to\nsys_enter/exit, so they\u0027re more closely aligned to the specific\nsys_enter_foo events.\n\nSigned-off-by: Josh Stone \u003cjistone@redhat.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nLKML-Reference: \u003c1251150194-1713-5-git-send-email-jistone@redhat.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "97419875865859fd2403e66266c02ce028e2f5ab", "tree": "7df6e6df767e9c8ff538a50bcae17638a1c8da99", "parents": [ "3d27d8cb34fc156beb86de2338ca4029873a5cc6" ], "author": { "name": "Josh Stone", "email": "jistone@redhat.com", "time": "Mon Aug 24 14:43:13 2009 -0700" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Aug 26 00:36:41 2009 +0200" }, "message": "tracing: Move tracepoint callbacks from declaration to definition\n\nIt\u0027s not strictly correct for the tracepoint reg/unreg callbacks to\noccur when a client is hooking up, because the actual tracepoint may not\nbe present yet. This happens to be fine for syscall, since that\u0027s in\nthe core kernel, but it would cause problems for tracepoints defined in\na module that hasn\u0027t been loaded yet. It also means the reg/unreg has\nto be EXPORTed for any modules to use the tracepoint (as in SystemTap).\n\nThis patch removes DECLARE_TRACE_WITH_CALLBACK, and instead introduces\nDEFINE_TRACE_FN which stores the callbacks in struct tracepoint. The\ncallbacks are used now when the active state of the tracepoint changes\nin set_tracepoint \u0026 disable_tracepoint.\n\nThis also introduces TRACE_EVENT_FN, so ftrace events can also provide\nregistration callbacks if needed.\n\nSigned-off-by: Josh Stone \u003cjistone@redhat.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nLKML-Reference: \u003c1251150194-1713-4-git-send-email-jistone@redhat.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "3d27d8cb34fc156beb86de2338ca4029873a5cc6", "tree": "51be3d9b84fa6a7899b69c499cb7630ebca366b0", "parents": [ "667000011927b4fcc359beac4a2447889db6d349" ], "author": { "name": "Josh Stone", "email": "jistone@redhat.com", "time": "Mon Aug 24 14:43:12 2009 -0700" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Aug 26 00:24:19 2009 +0200" }, "message": "tracing: Make syscall tracepoints conditional\n\nThe syscall enter/exit tracepoints are only supported on archs that\nHAVE_SYSCALL_TRACEPOINTS, so the declarations should be #ifdef\u0027ed.\nAlso, the definition of syscall_regfunc and syscall_unregfunc should\ndepend on this same config, rather than the ftrace-specific one.\n\nSigned-off-by: Josh Stone \u003cjistone@redhat.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nLKML-Reference: \u003c1251150194-1713-3-git-send-email-jistone@redhat.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "667000011927b4fcc359beac4a2447889db6d349", "tree": "d21f0bce17e08479885818792529d3cadf7b8003", "parents": [ "d88cb582325830698de5071fa8b8c9e933dbbcad" ], "author": { "name": "Josh Stone", "email": "jistone@redhat.com", "time": "Mon Aug 24 14:43:11 2009 -0700" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Aug 26 00:17:35 2009 +0200" }, "message": "tracing: Rename FTRACE_SYSCALLS for tracepoints\n\ns/HAVE_FTRACE_SYSCALLS/HAVE_SYSCALL_TRACEPOINTS/g\ns/TIF_SYSCALL_FTRACE/TIF_SYSCALL_TRACEPOINT/g\n\nThe syscall enter/exit tracing is no longer specific to just ftrace, so\nthey now have names that reflect their tie to tracepoints instead.\n\nSigned-off-by: Josh Stone \u003cjistone@redhat.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nLKML-Reference: \u003c1251150194-1713-2-git-send-email-jistone@redhat.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "d88cb582325830698de5071fa8b8c9e933dbbcad", "tree": "257eea90a88b49720addf7035855eb3dfe0a88e4", "parents": [ "4539f07701b3f743580d19dc5d655fb8d21b0a3c" ], "author": { "name": "Anirban Sinha", "email": "ASinha@zeugmasystems.com", "time": "Tue Aug 25 07:00:02 2009 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Aug 25 16:15:12 2009 +0200" }, "message": "tracing: Eliminate code duplication in kernel/tracepoint.c\n\nSigned-off-by: Anirban Sinha \u003casinha@zeugmasystems.com\u003e\nReviewed-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: \"Oleg Nesterov\" \u003coleg@tv-sign.ru\u003e\nLKML-Reference: \u003cDDFD17CC94A9BD49A82147DDF7D545C501EA9047@exchange.ZeugmaSystems.local\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "4539f07701b3f743580d19dc5d655fb8d21b0a3c", "tree": "15bb4504cda47f4e5281831eccd91b51dcd4b095", "parents": [ "540b7b8d65575c80162f2a0f38e1d313c92a6042" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Thu Aug 20 16:13:35 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Aug 20 12:12:22 2009 +0200" }, "message": "tracing/syscalls: Fix the output of syscalls with no arguments\n\nBefore:\n\n # echo 1 \u003e events/syscalls/sys_enter_sync/enable\n # cat events/syscalls/sys_enter_sync/format\n ...\n field:int nr; offset:12; size:4;\n\n print fmt: \"# sync\n # cat trace\n ...\n sync-8950 [000] 2366.087670: sys_sync(\n\nAfter:\n\n # echo 1 \u003e events/syscalls/sys_enter_sync/enable\n # cat events/syscalls/sys_enter_sync/format\n ...\n field:int nr; offset:12; size:4;\n\n print fmt: \"\"\n # sync\n # cat trace\n sync-2134 [001] 136.780735: sys_sync()\n\nReported-by: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nLKML-Reference: \u003c4A8D05AF.20103@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "540b7b8d65575c80162f2a0f38e1d313c92a6042", "tree": "664bdd01ce8fce990e634a304f9b3ab51e50970c", "parents": [ "e647d6b314266adb904d4b84973eda0afa856946" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Wed Aug 19 15:54:51 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Aug 19 15:02:24 2009 +0200" }, "message": "tracing/syscalls: Add filtering support\n\nAdd filtering support for syscall events:\n\n # echo \u0027mode \u003d\u003d 0666\u0027 \u003e events/syscalls/sys_enter_open\n # echo \u0027ret \u003d\u003d 0\u0027 \u003e events/syscalls/sys_exit_open\n # echo 1 \u003e events/syscalls/sys_enter_open\n # echo 1 \u003e events/syscalls/sys_exit_open\n # cat trace\n ...\n modprobe-3084 [001] 117.463140: sys_open(filename: 917d3e8, flags: 0, mode: 1b6)\n modprobe-3084 [001] 117.463176: sys_open -\u003e 0x0\n less-3086 [001] 117.510455: sys_open(filename: 9c6bdb8, flags: 8000, mode: 1b6)\n sendmail-2574 [001] 122.145840: sys_open(filename: b807a365, flags: 0, mode: 1b6)\n ...\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c4A8BAFCB.1040006@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e647d6b314266adb904d4b84973eda0afa856946", "tree": "e4f18b57d37a25910b3d19b6c2461f87db0084a3", "parents": [ "14be96c9716cb8c46dca94bd890defd7856e0734" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Wed Aug 19 15:54:32 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Aug 19 15:02:24 2009 +0200" }, "message": "tracing/events: Add trace_define_common_fields()\n\nExtract duplicate code. Also prepare for the later patch.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c4A8BAFB8.1010304@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "14be96c9716cb8c46dca94bd890defd7856e0734", "tree": "d9a064f3191182f16ff01176b17c4dda073d8dc8", "parents": [ "10a5b66f625904ad5a2867cf7a28073e1236ff32" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Wed Aug 19 15:53:52 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Aug 19 15:02:23 2009 +0200" }, "message": "tracing/events: Add ftrace_event_call param to define_fields()\n\nThis parameter is needed by syscall events to add define_fields()\nhandler.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c4A8BAF90.6060801@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "10a5b66f625904ad5a2867cf7a28073e1236ff32", "tree": "165c3d0f480e2862d3d97f3f3ceecad9c1cdc8b8", "parents": [ "e6971969c331caa5c3c88cbd1be4f465b3355452" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Wed Aug 19 15:53:05 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Aug 19 15:02:23 2009 +0200" }, "message": "tracing/syscalls: Add fields format for exit events\n\nAdd \"format\" file for syscall exit events:\n\n # cat events/syscalls/sys_exit_open/format\n name: sys_exit_open\n ID: 344\n format:\n field:unsigned short common_type; offset:0; size:2;\n field:unsigned char common_flags; offset:2; size:1;\n field:unsigned char common_preempt_count; offset:3; size:1;\n field:int common_pid; offset:4; size:4;\n field:int common_tgid; offset:8; size:4;\n\n field:int nr; offset:12; size:4;\n field:unsigned long ret; offset:16; size:4;\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c4A8BAF61.3060307@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e6971969c331caa5c3c88cbd1be4f465b3355452", "tree": "0d66906d1882566257db824b38ab905d8a0dc721", "parents": [ "5e9ad7df9fd056f1071af8aa91034a1c3170257d" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Wed Aug 19 15:52:25 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Aug 19 15:02:22 2009 +0200" }, "message": "tracing/syscalls: Fix fields format for enter events\n\nThe \"format\" file of a trace event is originally for parsers to\nparse ftrace binary output.\n\nBut the \"format\" file of a syscall event can only be used by\nperfcounter, because it describes the format of struct\nsyscall_enter_record not struct syscall_trace_enter.\n\nTo fix this, we remove struct syscall_enter_record, and then\nstruct syscall_trace_enter will be used by both perf profile\nand ftrace.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c4A8BAF39.1030404@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "5e9ad7df9fd056f1071af8aa91034a1c3170257d", "tree": "2f5a2de49bbbdba1b75502a554caecf025ed35a8", "parents": [ "3be04b471b95b870bd129a138463756629e86f3f" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Aug 18 10:41:57 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Aug 19 14:16:15 2009 +0200" }, "message": "[S390] ftrace: update system call tracer support\n\nCommit fb34a08c3 (\"tracing: Add trace events for each syscall\nentry/exit\") changed the lowlevel API to ftrace syscall tracing\nbut did not update s390 which started making use of it recently.\n\nThis broke the s390 build, as reported by Paul Mundt.\n\nUpdate the callbacks with the syscall number and the syscall\nreturn code values. This allows per syscall tracepoints,\nsyscall argument enumeration /debug/tracing/events/syscalls/\nand perfcounters support and integration on s390 too.\n\nReported-by: Paul Mundt \u003clethal@linux-sh.org\u003e\nAcked-by: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003ctip-fb34a08c3469b2be9eae626ccb96476b4687b810@git.kernel.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "3be04b471b95b870bd129a138463756629e86f3f", "tree": "056a6f2ecf5be83c0441ebe9357f16bc1f91cd0c", "parents": [ "2fc5f0cff4cf1c4cd336d0f61f11bca6eeee1d84" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Mon Aug 17 16:54:03 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 17 11:25:10 2009 +0200" }, "message": "ftrace: Simplify seqfile code\n\nUse seq_release_private().\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: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4A891AAB.8090701@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "2fc5f0cff4cf1c4cd336d0f61f11bca6eeee1d84", "tree": "a86845315b93dbdffc2536f8089ee3169cec9113", "parents": [ "97d53202a5670a08b79c8ef2e4fff1c1ee21317c" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Mon Aug 17 16:53:37 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 17 11:25:09 2009 +0200" }, "message": "trace_stack: Simplify seqfile code\n\nExtract duplicate code in t_start() and t_next().\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\nLKML-Reference: \u003c4A891A91.4030602@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "97d53202a5670a08b79c8ef2e4fff1c1ee21317c", "tree": "5ba925559a3031a833c5803d05a0a43e13ea1866", "parents": [ "ba8b3a40ba7e06d00c27508f090803af90e8dbbf" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Mon Aug 17 16:52:53 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 17 11:25:09 2009 +0200" }, "message": "trace_stat: Fix missing entry in stat file\n\nOne entry is missing in the output of a stat file.\n\nThe cause is, when stat_seq_start() is called the 2nd time, we\nshould start from the (pos-1)th elem in the rbtree but not pos,\nbecause pos \u003d\u003d 0 is the header.\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\nLKML-Reference: \u003c4A891A65.70009@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ba8b3a40ba7e06d00c27508f090803af90e8dbbf", "tree": "7805446c5a6a945dddb872a9b84c3ceee30d1583", "parents": [ "7ead8b8313d92b3a69a1a61b0dcbc4cd66c960dc" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Mon Aug 17 16:55:18 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 17 11:25:09 2009 +0200" }, "message": "tracing/syscalls: Fix to print parameter types\n\nWhen syscall tracing was implemented as a tracer,\n\"syscall_arg_type\" trace option could be set to enable the\ndisplay of syscall parameter types.\n\nNow this option is gone since it\u0027s no longer a tracer, but the\ncode is still there but dead.\n\nSo we remove dead code and re-enable the printing of paramete\ntypes via the verbose option:\n\n # echo verbose \u003e trace_options\n # echo syscalls \u003e set_event\n # cat trace\n\t...\n bash-3331 [000] 95.348937: sys_fcntl64 -\u003e 0x1\n bash-3331 [000] 95.348942: sys_close(unsigned int fd: a)\n\t...\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: Jason Baron \u003cjbaron@redhat.com\u003e\nLKML-Reference: \u003c4A891AF6.5050102@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "7ead8b8313d92b3a69a1a61b0dcbc4cd66c960dc", "tree": "614759ec1b24ea9f6d1409b866c80df0611e5d6b", "parents": [ "60d970c254b95ec7a0fc4c590b510253987b64a0" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Mon Aug 17 16:56:28 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 17 11:25:08 2009 +0200" }, "message": "tracing/events: Add module tracepoints\n\nAdd trace points to trace module_load, module_free, module_get,\nmodule_put and module_request, and use trace_event facility to\nget the trace output.\n\nHere\u0027s the sample output:\n\n TASK-PID CPU# TIMESTAMP FUNCTION\n | | | | |\n \u003c...\u003e-42 [000] 1.758380: module_request: fb0 wait\u003d1 call_site\u003dfb_open\n ...\n \u003c...\u003e-60 [000] 3.269403: module_load: scsi_wait_scan\n \u003c...\u003e-60 [000] 3.269432: module_put: scsi_wait_scan call_site\u003dsys_init_module refcnt\u003d0\n \u003c...\u003e-61 [001] 3.273168: module_free: scsi_wait_scan\n ...\n \u003c...\u003e-1021 [000] 13.836081: module_load: sunrpc\n \u003c...\u003e-1021 [000] 13.840589: module_put: sunrpc call_site\u003dsys_init_module refcnt\u003d-1\n \u003c...\u003e-1027 [000] 13.848098: module_get: sunrpc call_site\u003dtry_module_get refcnt\u003d0\n \u003c...\u003e-1027 [000] 13.848308: module_get: sunrpc call_site\u003dget_filesystem refcnt\u003d1\n \u003c...\u003e-1027 [000] 13.848692: module_put: sunrpc call_site\u003dput_filesystem refcnt\u003d0\n ...\n modprobe-2587 [001] 1088.437213: module_load: trace_events_sample F\n modprobe-2587 [001] 1088.437786: module_put: trace_events_sample call_site\u003dsys_init_module refcnt\u003d0\n\nNote:\n\n- the taints flag can be \u0027F\u0027, \u0027C\u0027 and/or \u0027P\u0027 if mod-\u003etaints !\u003d 0\n\n- the module refcnt is percpu, so it can be negative in a\n specific cpu\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nLKML-Reference: \u003c4A891B3C.5030608@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "60d970c254b95ec7a0fc4c590b510253987b64a0", "tree": "3f99d03bf8af498ef57376f65b7c18b9e18b098a", "parents": [ "19007a67a64f9b3cbbd7024f972654ebf14daade" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Aug 13 23:37:26 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Aug 13 23:38:20 2009 +0200" }, "message": "tracing: Fix syscall tracing on !HAVE_FTRACE_SYSCALLS architectures\n\nThe new syscall_regfunc()/unregfunc() functions rely on\nthe existence of TIF_SYSCALL_FTRACE - but that TIF flag\nis only offered by HAVE_FTRACE_SYSCALLS.\n\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "19007a67a64f9b3cbbd7024f972654ebf14daade", "tree": "a993570902eb009cf6bdbc5bccfa485ff6ec960a", "parents": [ "dc4ddb4c0b7348f1c9759ae8a9e7d734dc1cda82" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Aug 11 20:22:53 2009 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Aug 11 20:35:30 2009 +0200" }, "message": "tracing: Support for syscall events raw records in perfcounters\n\nThis bring the support for raw syscall events in perfcounters.\nThe arguments or exit value are saved as a raw sample using\nthe PERF_SAMPLE_RAW attribute in a perf counter.\n\nExample (for now you must explicitly set the PERF_SAMPLE_RAW flag\nin perf record):\n\nperf record -e syscalls:sys_enter_open -f -F 1 -a\nperf report -D\n\n\t0x2cbb8 [0x50]: event: 9\n\t.\n\t. ... raw event: size 80 bytes\n\t. 0000: 09 00 00 00 02 00 50 00 20 e9 39 ab 0a 7f 00 00 ......P. .9....\n\t. 0010: bc 14 00 00 bc 14 00 00 01 00 00 00 00 00 00 00 ...............\n\t. 0020: 2c 00 00 00 15 01 01 00 bc 14 00 00 bc 14 00 00 ,..............\n ^ ^ ^ ^ ^ ^ ^ ..........................\n Event Size struct trace_entry\n\n\t. 0030: 00 00 00 00 46 98 43 02 00 00 00 00 80 08 00 00 ....F.C........\n ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^\n ptr to file name open flags\n\n\t. 0040: 00 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00 ...............\n ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^\n\t. open mode padding\n\n\t0x2cbb8 [0x50]: PERF_EVENT_SAMPLE (IP, 2): 5308: 0x7f0aab39e920 period: 1\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\n" }, { "commit": "dc4ddb4c0b7348f1c9759ae8a9e7d734dc1cda82", "tree": "00c0df5d9b7809a0c0cf89713c55c7e04ce6c248", "parents": [ "e8f9f4d79a677f55c8ec3acbe87b33a87e2df0de" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Aug 11 19:03:54 2009 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Aug 11 20:35:30 2009 +0200" }, "message": "tracing: Add fields format definition for syscall events\n\nDefine the format of the syscall trace fields to parse the binary\nvalues from a raw trace using the syscall events \"format\" file.\n\nThis is defined dynamically using the syscalls metadata.\nIt prepares the export of syscall event raw records to perf\ncounters.\n\nExample:\n\n$ cat /debug/tracing/events/syscalls/sys_enter_sched_getparam/format\nname: sys_enter_sched_getparam\nID: 39\nformat:\n\tfield:unsigned short common_type;\toffset:0;\tsize:2;\n\tfield:unsigned char common_flags;\toffset:2;\tsize:1;\n\tfield:unsigned char common_preempt_count;\toffset:3;\tsize:1;\n\tfield:int common_pid;\toffset:4;\tsize:4;\n\tfield:int common_tgid;\toffset:8;\tsize:4;\n\n\tfield:pid_t pid;\toffset:12;\tsize:8;\n\tfield:struct sched_param * param;\toffset:20;\tsize:8;\n\nprint fmt: \"pid: 0x%08lx, param: 0x%08lx\", ((unsigned long)(REC-\u003epid)), ((unsigned long)(REC-\u003eparam))\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\n" }, { "commit": "e8f9f4d79a677f55c8ec3acbe87b33a87e2df0de", "tree": "3b20dcf2c7b49fe23e0641805ca7aaac921bc46d", "parents": [ "0ac676fb50f5f8a22e5e80afc40bf38e31b77c00" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Aug 11 17:42:52 2009 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Aug 11 20:35:29 2009 +0200" }, "message": "tracing: Add ftrace event call parameter to its field descriptor handler\n\nAdd the struct ftrace_event_call as a parameter of its show_format()\ncallback. This way we can use it from the syscall trace events to\nretrieve the syscall name from the ftrace event call parameter and\ndescribe its fields using the syscalls metadata.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\n" }, { "commit": "0ac676fb50f5f8a22e5e80afc40bf38e31b77c00", "tree": "6385e7a005a5d5e2a65a96dc73559bfe6e19cbcd", "parents": [ "48c2e17f1f668fe6691bad965beb2b0b25239c5f" ], "author": { "name": "Jason Baron", "email": "jbaron@redhat.com", "time": "Mon Aug 10 16:53:11 2009 -0400" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Aug 11 20:35:29 2009 +0200" }, "message": "tracing: Convert x86_64 mmap and uname to use DEFINE_SYSCALL\n\nA number of syscalls are not using \u0027DEFINE_SYSCALL\u0027. I\u0027m not sure why.\nConvert x86_64 uname and mmap to use DEFINE_SYSCALL.\n\nSigned-off-by: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "48c2e17f1f668fe6691bad965beb2b0b25239c5f", "tree": "c46dc47bd05e678736049bdcaa0651fdb86371f9", "parents": [ "f4b5ffccc83c82947f5d9f15d6f1b6edb1b71cd7" ], "author": { "name": "Jason Baron", "email": "jbaron@redhat.com", "time": "Mon Aug 10 16:53:06 2009 -0400" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Aug 11 20:35:29 2009 +0200" }, "message": "tracing: Add more namespace area to \u0027perf list\u0027 output\n\nThe new syscall tracepoints names can be too long for the \u0027perf list\u0027\noutput.\nAdd a few more characters.\n\nSigned-off-by: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "f4b5ffccc83c82947f5d9f15d6f1b6edb1b71cd7", "tree": "06ec4a005b40ba0b6039e6c3425dd186486b8c6f", "parents": [ "64c12e0444fcc6b75eb49144ba46d43dbdc6bc8f" ], "author": { "name": "Jason Baron", "email": "jbaron@redhat.com", "time": "Mon Aug 10 16:53:02 2009 -0400" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Aug 11 20:35:29 2009 +0200" }, "message": "tracing: Add perf counter support for syscalls tracing\n\nThe perf counter support is automated for usual trace events. But we\nhave to define specific callbacks for this to handle syscalls trace\nevents\n\nMake \u0027perf stat -e syscalls:sys_enter_blah\u0027 work with syscall style\ntracepoints.\n\nSigned-off-by: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "64c12e0444fcc6b75eb49144ba46d43dbdc6bc8f", "tree": "8fe7b546fe787061fca8f97ed2051f40f9b16a57", "parents": [ "fb34a08c3469b2be9eae626ccb96476b4687b810" ], "author": { "name": "Jason Baron", "email": "jbaron@redhat.com", "time": "Mon Aug 10 16:52:53 2009 -0400" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Aug 11 20:35:28 2009 +0200" }, "message": "tracing: Add individual syscalls tracepoint id support\n\nThe current state of syscalls tracepoints generates only one event id\nfor every syscall events.\n\nThis patch associates an id with each syscall trace event, so that we\ncan identify each syscall trace event using the \u0027perf\u0027 tool.\n\nSigned-off-by: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "fb34a08c3469b2be9eae626ccb96476b4687b810", "tree": "f308cd109de2c967a1f8bd485eb9c398992a9414", "parents": [ "69fd4f0eb2ececbf8ade55e31a933e174965745e" ], "author": { "name": "Jason Baron", "email": "jbaron@redhat.com", "time": "Mon Aug 10 16:52:47 2009 -0400" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Aug 11 20:35:28 2009 +0200" }, "message": "tracing: Add trace events for each syscall entry/exit\n\nLayer Frederic\u0027s syscall tracer on tracepoints. We create trace events\nvia hooking into the SYSCALL_DEFINE macros. This allows us to\nindividually toggle syscall entry and exit points on/off.\n\nSigned-off-by: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "69fd4f0eb2ececbf8ade55e31a933e174965745e", "tree": "bebe7f5b88b8e2c6c240390e4e546d0c3522e79b", "parents": [ "f744bd576a827c5b02e756b81fc2578edf8179b8" ], "author": { "name": "Jason Baron", "email": "jbaron@redhat.com", "time": "Mon Aug 10 16:52:44 2009 -0400" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Aug 11 20:35:27 2009 +0200" }, "message": "tracing: Add ftrace_event_call void * \u0027data\u0027 field\n\nadd an optional void * pointer to \u0027ftrace_event_call\u0027 that is\npassed in for regfunc and unregfunc.\n\nThis prepares for syscall tracepoints creation by passing the name of\nthe syscall we want to trace and then retrieve its number through our\narch syscall table.\n\nSigned-off-by: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "f744bd576a827c5b02e756b81fc2578edf8179b8", "tree": "d2e1242d87953476ee6cacb7e34e0f791b641c02", "parents": [ "9daa77e2e9a6b8b859660d5e24d0f8cd77c2af39" ], "author": { "name": "Jason Baron", "email": "jbaron@redhat.com", "time": "Mon Aug 10 16:52:39 2009 -0400" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Aug 11 20:35:27 2009 +0200" }, "message": "tracing: Raw_init() bailout in trace event register fail case\n\nAllow the return value of raw_init() trace event callback to bail us out\nof creating a trace event file, in case we fail to register our\nevent.\n\nAlso, we plan to return -ENOSYS for syscall events that don\u0027t match any\nsyscalls listed in our arch tracing syscall table, we don\u0027t want to warn\nin that case, we just want this event to be invisible in debugfs and\nignored.\n\nSigned-off-by: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "9daa77e2e9a6b8b859660d5e24d0f8cd77c2af39", "tree": "12e86fe4529c2981f0c0ff9b8b3a04de46883f12", "parents": [ "a871bd33a6c0bc86fb47cd02ea2650dd43d3d95f" ], "author": { "name": "Jason Baron", "email": "jbaron@redhat.com", "time": "Mon Aug 10 16:52:35 2009 -0400" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Aug 11 20:35:27 2009 +0200" }, "message": "tracing: Update FTRACE_SYSCALL_MAX\n\nupdate FTRACE_SYSCALL_MAX to the current number of syscalls\n\nFTRACE_SYSCALL_MAX is a temporary solution to get the number of\nsyscalls supported by the arch until we find a more dynamic way\nto get this number.\n\nSigned-off-by: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "a871bd33a6c0bc86fb47cd02ea2650dd43d3d95f", "tree": "b5720cdb3168ba0894b4bd2c1acc004cb19a692c", "parents": [ "63fbdab3157b72467013fe4dcf88c85e45280ef7" ], "author": { "name": "Jason Baron", "email": "jbaron@redhat.com", "time": "Mon Aug 10 16:52:31 2009 -0400" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Aug 11 20:35:26 2009 +0200" }, "message": "tracing: Add syscall tracepoints\n\nadd two tracepoints in syscall exit and entry path, conditioned on\nTIF_SYSCALL_FTRACE. Supports the syscall trace event code.\n\nSigned-off-by: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "63fbdab3157b72467013fe4dcf88c85e45280ef7", "tree": "c0e8647e18528dca9682e98a441729adfa41696c", "parents": [ "066e0378c23f0a3db730893f6a041e4a3922a385" ], "author": { "name": "Jason Baron", "email": "jbaron@redhat.com", "time": "Mon Aug 10 16:52:27 2009 -0400" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Aug 11 20:35:26 2009 +0200" }, "message": "tracing: Add DECLARE_TRACE_WITH_CALLBACK() macro\n\nIntroduce a new \u0027DECLARE_TRACE_WITH_CALLBACK()\u0027 macro, so that\ntracepoints can associate an external register/unregister function.\n\nThis prepares for the syscalls tracer conversion to trace events. We\nwill need to perform arch level operations once a syscall event is\nturned on/off, such as TIF flags setting, hence the need of such\nspecific callbacks.\n\nSigned-off-by: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "066e0378c23f0a3db730893f6a041e4a3922a385", "tree": "be402805c83dfc6547d4eb1e8b4129dcec1d9831", "parents": [ "eeac19a7efa150231e4a6bb110d6f27500bcc8ce" ], "author": { "name": "Jason Baron", "email": "jbaron@redhat.com", "time": "Mon Aug 10 16:52:23 2009 -0400" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Aug 11 20:35:26 2009 +0200" }, "message": "tracing: Call arch_init_ftrace_syscalls at boot\n\nCall arch_init_ftrace_syscalls at boot, so we can determine early the\nset of syscalls for the syscall trace events.\n\nSigned-off-by: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "eeac19a7efa150231e4a6bb110d6f27500bcc8ce", "tree": "99b59b07b3bd56c8ce1a352081280c8de4c177bb", "parents": [ "7770841e63730d62928b0879498064e9614b2ce0" ], "author": { "name": "Jason Baron", "email": "jbaron@redhat.com", "time": "Mon Aug 10 16:52:13 2009 -0400" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Aug 11 20:35:25 2009 +0200" }, "message": "tracing: Map syscall name to number\n\nAdd a new function to support translating a syscall name to number at\nruntime.\nThis allows the syscall event tracer to map syscall names to number.\n\nSigned-off-by: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "7770841e63730d62928b0879498064e9614b2ce0", "tree": "6bc12618ec2cdbc6e5294e6b967652eaf7c3c9d6", "parents": [ "89034bc2c7b839702c00a704e79d112737f98be0" ], "author": { "name": "Zhaolei", "email": "zhaolei@cn.fujitsu.com", "time": "Fri Aug 07 18:53:21 2009 +0800" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Aug 11 20:35:25 2009 +0200" }, "message": "tracing: Rename set_tracer_flags()\u0027s local variable trace_flags\n\nset_tracer_flags() have a local variable named trace_flags which has\nthe same name than a global one in the same scope.\nThis leads to confusion, using tracer_flags should be better by its\nmeaning.\n\nChangelog:\nv1-\u003ev2: Simplified another patch in this patchset, no change in this\n patch.\n\nSigned-off-by: Zhao Lei \u003czhaolei@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "89034bc2c7b839702c00a704e79d112737f98be0", "tree": "e65b1f3d4c751baa840efc81bc4734f089379eb3", "parents": [ "fb82ad719831db58e9baa4c67015aae3fe27e7e3", "85dfd81dc57e8183a277ddd7a56aa65c96f3f487" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Aug 11 14:19:09 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Aug 11 14:19:09 2009 +0200" }, "message": "Merge branch \u0027linus\u0027 into tracing/core\n\nConflicts:\n\tkernel/trace/trace_events_filter.c\n\nWe use the tracing/core version.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "85dfd81dc57e8183a277ddd7a56aa65c96f3f487", "tree": "7b09e7d8fdc4dbe7e57a3fc2df659a5506dfaa77", "parents": [ "d00aa6695b67a31be2ce5f7464da32c20cb50699" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 10 13:21:19 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 10 13:31:18 2009 -0700" }, "message": "pty: fix data loss when stopped (^S/^Q)\n\nCommit d945cb9cc (\"pty: Rework the pty layer to use the normal buffering\nlogic\") dropped the test for \u0027tty-\u003estopped\u0027 in pty_write_room(), which\nthen causes the n_tty line discipline thing to not throttle the data\nproperly when the tty is stopped.\n\nSo instead of pausing the write due to the tty being stopped, the ldisc\nlayer would go ahead and push it down to the pty. The pty write()\nroutine would then refuse to take the data (because it _did_ check\n\u0027stopped\u0027), and the data wouldn\u0027t actually be written.\n\nThis whole stopped test should eventually be moved into the tty ldisc\nlayer rather than have low-level tty drivers care about these things,\nbut right now the fix is to just re-instate the missing pty \u0027stopped\u0027\nhandling.\n\nReported-and-tested-by: Artur Skawina \u003cart.08.09@gmail.com\u003e\nCc: Alan Cox \u003calan@lxorguk.ukuu.org.uk\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d00aa6695b67a31be2ce5f7464da32c20cb50699", "tree": "4e4a2bbd1ab710ddca3bd1a611a6c3e9a00f52f9", "parents": [ "cec36911b5fa4ac342f6de856b12a9f71f84e6e5", "1853db0e02ae4088f102b0d8e59e83dc98f93f03" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 10 11:48:51 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 10 11:48:51 2009 -0700" }, "message": "Merge branch \u0027perfcounters-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perfcounters-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (27 commits)\n perf_counter: Zero dead bytes from ftrace raw samples size alignment\n perf_counter: Subtract the buffer size field from the event record size\n perf_counter: Require CAP_SYS_ADMIN for raw tracepoint data\n perf_counter: Correct PERF_SAMPLE_RAW output\n perf tools: callchain: Fix bad rounding of minimum rate\n perf_counter tools: Fix libbfd detection for systems with libz dependency\n perf: \"Longum est iter per praecepta, breve et efficax per exempla\"\n perf_counter: Fix a race on perf_counter_ctx\n perf_counter: Fix tracepoint sampling to be part of generic sampling\n perf_counter: Work around gcc warning by initializing tracepoint record unconditionally\n perf tools: callchain: Fix sum of percentages to be 100% by displaying amount of ignored chains in fractal mode\n perf tools: callchain: Fix \u0027perf report\u0027 display to be callchain by default\n perf tools: callchain: Fix spurious \u0027perf report\u0027 warnings: ignore empty callchains\n perf record: Fix the -A UI for empty or non-existent perf.data\n perf util: Fix do_read() to fail on EOF instead of busy-looping\n perf list: Fix the output to not include tracepoints without an id\n perf_counter/powerpc: Fix oops on cpus without perf_counter hardware support\n perf stat: Fix tool option consistency: rename -S/--scale to -c/--scale\n perf report: Add debug help for the finding of symbol bugs - show the symtab origin (DSO, build-id, kernel, etc)\n perf report: Fix per task mult-counter stat reporting\n ...\n" }, { "commit": "cec36911b5fa4ac342f6de856b12a9f71f84e6e5", "tree": "329f88e132e35a9be143f7bc5562ffd12690dffe", "parents": [ "a3263969b02260f8733940f580c7af1c716d38ad", "ad7d6c7a0654a4bbda3e109f56af713267e96274" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 10 11:21:13 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 10 11:21:13 2009 -0700" }, "message": "Merge branch \u0027irq-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027irq-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n x86/irq: Fix move_irq_desc() for nodes without ram\n" }, { "commit": "a3263969b02260f8733940f580c7af1c716d38ad", "tree": "19dbddd4cf73c16903256d2196e51a28613a9c09", "parents": [ "9b8f013a8361b05edf511f04fe93b36310b73806", "b6e61eef4f9f94714ac3ee4a5c96862d9bcd1836" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 10 11:11:40 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 10 11:11:40 2009 -0700" }, "message": "Merge branch \u0027x86-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027x86-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n x86: Fix serialization in pit_expect_msb()\n" }, { "commit": "9b8f013a8361b05edf511f04fe93b36310b73806", "tree": "1c23961d09cc4a47514a501b6f8a6a0f9290a7c2", "parents": [ "9bcf73f48280ef8cd7f2e38e674da47c409b9906", "94f81a47c4a7a2d7a16fcfdd6d81da381732c101" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 10 11:00:37 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 10 11:00:37 2009 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:\n PCI hotplug: SGI hotplug: do not use hotplug_slot_attr\n PCI hotplug: SGI hotplug: fix build failure\n" }, { "commit": "b6e61eef4f9f94714ac3ee4a5c96862d9bcd1836", "tree": "4bd7d4677261b13f2dcd1656673f5b7daa1ff37c", "parents": [ "f4b9a988685da6386d7f9a72df3098bcc3270526" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 31 12:45:41 2009 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 10 19:56:57 2009 +0200" }, "message": "x86: Fix serialization in pit_expect_msb()\n\nWei Chong Tan reported a fast-PIT-calibration corner-case:\n\n| pit_expect_msb() is vulnerable to SMI disturbance corner case\n| in some platforms which causes /proc/cpuinfo to show wrong\n| CPU MHz value when quick_pit_calibrate() jumps to success\n| section.\n\nI think that the real issue isn\u0027t even an SMI - but the fact\nthat in the very last iteration of the loop, there\u0027s no\nserializing instruction _after_ the last \u0027rdtsc\u0027. So even in\nthe absense of SMI\u0027s, we do have a situation where the cycle\ncounter was read without proper serialization.\n\nThe last check should be done outside the outer loop, since\n_inside_ the outer loop, we\u0027ll be testing that the PIT has\nthe right MSB value has the right value in the next iteration.\n\nSo only the _last_ iteration is special, because that\u0027s the one\nthat will not check the PIT MSB value any more, and because the\nfinal \u0027get_cycles()\u0027 isn\u0027t serialized.\n\nIn other words:\n\n - I\u0027d like to move the PIT MSB check to after the last\n iteration, rather than in every iteration\n\n - I think we should comment on the fact that it\u0027s also a\n serializing instruction and so \u0027fences in\u0027 the TSC read.\n\nHere\u0027s a suggested replacement.\n\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nReported-by: \"Tan, Wei Chong\" \u003cwei.chong.tan@intel.com\u003e\nTested-by: \"Tan, Wei Chong\" \u003cwei.chong.tan@intel.com\u003e\nLKML-Reference: \u003cB28277FD4E0F9247A3D55704C440A140D5D683F3@pgsmsx504.gar.corp.intel.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "9bcf73f48280ef8cd7f2e38e674da47c409b9906", "tree": "8f2c8de4dc437ce901c8b15f437a0394481ef44a", "parents": [ "2c661a669b3e2e34311d7965271a628671191e45", "704b836cbf19e885f8366bccb2e4b0474346c02d" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 10 09:00:47 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 10 09:00:47 2009 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6:\n mm_for_maps: take -\u003ecred_guard_mutex to fix the race with exec\n mm_for_maps: shift down_read(mmap_sem) to the caller\n mm_for_maps: simplify, use ptrace_may_access()\n" }, { "commit": "2c661a669b3e2e34311d7965271a628671191e45", "tree": "661f8ed4913a3d98c1a620e66a408f2262bf4bb0", "parents": [ "04e35357e2e3ff4e0cabd6468354cf3dbfeb4f27", "b2f2e8fee3d62f621e795f25b2fc0f51bbdb4af9" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 10 08:59:56 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 10 08:59:56 2009 -0700" }, "message": "Merge branch \u0027merge\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc\n\n* \u0027merge\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:\n powerpc/dma: pci_set_dma_mask() shouldn\u0027t fail if mask fits in RAM\n" }, { "commit": "04e35357e2e3ff4e0cabd6468354cf3dbfeb4f27", "tree": "25bdcbd2bb28893e6cb550c3e5fae20e158fa604", "parents": [ "5e2f89b5d5d87a7c3ba19fc85ba0c29adb65f639" ], "author": { "name": "Jaswinder Singh Rajput", "email": "jaswinder@kernel.org", "time": "Mon Aug 10 16:45:42 2009 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 10 08:54:27 2009 -0700" }, "message": "MN10300: includecheck fix: mn10300, pci.h\n\nFix the following \u0027make includecheck\u0027 warning:\n\n arch/mn10300/include/asm/pci.h: linux/mm.h is included more than once.\n\nSigned-off-by: Jaswinder Singh Rajput \u003cjaswinderrajput@gmail.com\u003e\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "5e2f89b5d5d87a7c3ba19fc85ba0c29adb65f639", "tree": "2737536b2183e1d089ef4d83495c75c815c7f448", "parents": [ "1392e3b33319fd1a2527bebfc56631c2f2d3c7c5" ], "author": { "name": "Figo.zhang", "email": "figo1802@gmail.com", "time": "Sat Aug 08 21:01:22 2009 +0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 10 08:31:16 2009 -0700" }, "message": "mempool.c: clean up type-casting\n\nclean up type-casting twice. \"size_t\" is typedef as \"unsigned long\" in\n64-bit system, and \"unsigned int\" in 32-bit system, and the intermediate\ncast to \u0027long\u0027 is pointless.\n\nSigned-off-by: Figo.zhang \u003cfigo1802@gmail.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "1392e3b33319fd1a2527bebfc56631c2f2d3c7c5", "tree": "f64dd62d50831822f6e337aed82837fda1f7fcde", "parents": [ "f4b9a988685da6386d7f9a72df3098bcc3270526" ], "author": { "name": "Ryusuke Konishi", "email": "konishi.ryusuke@lab.ntt.co.jp", "time": "Sat Aug 08 17:52:50 2009 +0900" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 10 08:30:11 2009 -0700" }, "message": "documentation: register ioctl entry of nilfs2\n\nThis will register the ioctl range used by nilfs2 file system to the\ntable listed in Documentation/ioctl/ioctl-number.txt.\n\nSigned-off-by: Ryusuke Konishi \u003ckonishi.ryusuke@lab.ntt.co.jp\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "1853db0e02ae4088f102b0d8e59e83dc98f93f03", "tree": "9fd877538baf1904a31eb5436536954cdced5293", "parents": [ "304703aba31a87903b8c0db8f5e6890cac2d596d" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Mon Aug 10 16:38:36 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 10 16:51:19 2009 +0200" }, "message": "perf_counter: Zero dead bytes from ftrace raw samples size alignment\n\nAfter aligning the ftrace raw samples, there are dead bytes storing\nrandom data from the stack. We don\u0027t want to leak these to userspace,\nthen zero these out.\n\nBefore:\n\n\t0x2de88 [0x50]: event: 9\n\t.\n\t. ... raw event: size 80 bytes\n\t. 0000: 09 00 00 00 01 00 50 00 d0 c7 00 81 ff ff ff ff ......P........\n\t. 0010: 68 01 00 00 68 01 00 00 2c 00 00 00 00 00 00 00 h...h...,......\n\t. 0020: 2c 00 00 00 2b 00 01 02 68 01 00 00 68 01 00 00 ,...+...h...h..\n\t. 0030: 6b 6f 6e 64 65 6d 61 6e 64 2f 30 00 00 00 00 00 kondemand/0....\n\t. 0040: 68 01 00 00 40 7f 46 81 ff ff ff ff 00 10 1b 7f h...@.F........\n ^ ^ ^ ^\n Leak\n\nAfter:\n\n\t0x2d318 [0x50]: event: 9\n\t.\n\t. ... raw event: size 80 bytes\n\t. 0000: 09 00 00 00 01 00 50 00 d0 c7 00 81 ff ff ff ff ......P........\n\t. 0010: 68 01 00 00 68 01 00 00 68 14 00 00 00 00 00 00 h...h...h......\n\t. 0020: 2c 00 00 00 2b 00 01 02 68 01 00 00 68 01 00 00 ,...+...h...h..\n\t. 0030: 6b 6f 6e 64 65 6d 61 6e 64 2f 30 00 00 00 00 00 kondemand/0....\n\t. 0040: 68 01 00 00 a0 80 46 81 ff ff ff ff 00 00 00 00 h.....F........\n ^ ^ ^ ^\n\t\t\t\t\t\t\t Fixed\n\nReported-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nLKML-Reference: \u003c1249915116-5210-1-git-send-email-fweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\n" }, { "commit": "304703aba31a87903b8c0db8f5e6890cac2d596d", "tree": "bd233c6fd72d1d674c4a9537cfd6519069914d74", "parents": [ "a4e95fc2cbb31d70a65beffeaf8773f881328c34" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Mon Aug 10 16:11:32 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 10 16:18:50 2009 +0200" }, "message": "perf_counter: Subtract the buffer size field from the event record size\n\nWe compute the perf raw sample size by aligning the raw ftrace\nevent size plus the buffer size field itself. We do that\ninstead of aligning only the perf raw sample size, so that we\nmight economize some in some cases.\n\nBut this buffer size field is not stored in the perf raw\nsample, we must then substract its size from the buffer once we\ncomputed the alignment unless we may get a useless u32 field in\nthe buffer.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nAcked-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nLKML-Reference: \u003c20090810141129.GA5124@nowhere\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "704b836cbf19e885f8366bccb2e4b0474346c02d", "tree": "d0513d3ef70e1b875cd7786f94150ba2428b6a88", "parents": [ "00f89d218523b9bf6b522349c039d5ac80aa536d" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Fri Jul 10 03:27:40 2009 +0200" }, "committer": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Mon Aug 10 20:49:26 2009 +1000" }, "message": "mm_for_maps: take -\u003ecred_guard_mutex to fix the race with exec\n\nThe problem is minor, but without -\u003ecred_guard_mutex held we can race\nwith exec() and get the new -\u003emm but check old creds.\n\nNow we do not need to re-check task-\u003emm after ptrace_may_access(), it\ncan\u0027t be changed to the new mm under us.\n\nStrictly speaking, this also fixes another very minor problem. Unless\nsecurity check fails or the task exits mm_for_maps() should never\nreturn NULL, the caller should get either old or new -\u003emm.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nSigned-off-by: James Morris \u003cjmorris@namei.org\u003e\n" }, { "commit": "00f89d218523b9bf6b522349c039d5ac80aa536d", "tree": "cde7a8bde2798e4fb3ae28756f6cedd4db9191cc", "parents": [ "13f0feafa6b8aead57a2a328e2fca6a5828bf286" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Fri Jul 10 03:27:38 2009 +0200" }, "committer": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Mon Aug 10 20:48:32 2009 +1000" }, "message": "mm_for_maps: shift down_read(mmap_sem) to the caller\n\nmm_for_maps() takes -\u003emmap_sem after security checks, this looks\nstrange and obfuscates the locking rules. Move this lock to its\nsingle caller, m_start().\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nSigned-off-by: James Morris \u003cjmorris@namei.org\u003e\n" }, { "commit": "13f0feafa6b8aead57a2a328e2fca6a5828bf286", "tree": "fb396118339319406daf7f6782782eaef31b3b53", "parents": [ "f4b9a988685da6386d7f9a72df3098bcc3270526" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Tue Jun 23 21:25:32 2009 +0200" }, "committer": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Mon Aug 10 20:47:42 2009 +1000" }, "message": "mm_for_maps: simplify, use ptrace_may_access()\n\nIt would be nice to kill __ptrace_may_access(). It requires task_lock(),\nbut this lock is only needed to read mm-\u003eflags in the middle.\n\nConvert mm_for_maps() to use ptrace_may_access(), this also simplifies\nthe code a little bit.\n\nAlso, we do not need to take -\u003emmap_sem in advance. In fact I think\nmm_for_maps() should not play with -\u003emmap_sem at all, the caller should\ntake this lock.\n\nWith or without this patch, without -\u003ecred_guard_mutex held we can race\nwith exec() and get the new -\u003emm but check old creds.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nReviewed-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nSigned-off-by: James Morris \u003cjmorris@namei.org\u003e\n" }, { "commit": "a4e95fc2cbb31d70a65beffeaf8773f881328c34", "tree": "c0a00094c9c38bad5e09fd19fe23521c361177d7", "parents": [ "a044560c3a1f0ad75ce685c1ed7604820b9ed319" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Aug 10 11:20:12 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 10 11:33:09 2009 +0200" }, "message": "perf_counter: Require CAP_SYS_ADMIN for raw tracepoint data\n\nRaw tracepoint data contains various kernel internals and\ndata from other users, so restrict this to CAP_SYS_ADMIN.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nLKML-Reference: \u003c1249896452.17467.75.camel@twins\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "a044560c3a1f0ad75ce685c1ed7604820b9ed319", "tree": "51fa4979ad02d388b35e1a56020bfbd8c2e5329d", "parents": [ "c0a8865e32c8d1a562db38e06ef31ef23282f646" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Aug 10 11:16:52 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 10 11:33:09 2009 +0200" }, "message": "perf_counter: Correct PERF_SAMPLE_RAW output\n\nPERF_SAMPLE_* output switches should unconditionally output the\ncorrect format, as they are the only way to unambiguously parse\nthe PERF_EVENT_SAMPLE data.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nLKML-Reference: \u003c1249896447.17467.74.camel@twins\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b2f2e8fee3d62f621e795f25b2fc0f51bbdb4af9", "tree": "b32c0e3c4143781e81fffcdc02cdd38a1a5279d9", "parents": [ "f4b9a988685da6386d7f9a72df3098bcc3270526" ], "author": { "name": "Benjamin Herrenschmidt", "email": "benh@kernel.crashing.org", "time": "Mon Aug 10 16:36:38 2009 +1000" }, "committer": { "name": "Benjamin Herrenschmidt", "email": "benh@kernel.crashing.org", "time": "Mon Aug 10 16:36:38 2009 +1000" }, "message": "powerpc/dma: pci_set_dma_mask() shouldn\u0027t fail if mask fits in RAM\n\nOn an iMac G5, the b43 driver is failing to initialise because trying to\nset the dma mask to 30-bit fails. Even though there\u0027s only 512MiB of RAM\nin the machine anyway:\n\thttps://bugzilla.redhat.com/show_bug.cgi?id\u003d514787\n\nWe should probably let it succeed if the available RAM in the system\ndoesn\u0027t exceed the requested limit.\n\nSigned-off-by: David Woodhouse \u003cDavid.Woodhouse@intel.com\u003e\nSigned-off-by: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\n" }, { "commit": "f4b9a988685da6386d7f9a72df3098bcc3270526", "tree": "73432363e9f42b3d0d79d523c91058bb53555722", "parents": [ "17d11ba14990d2bbaaec9c09a200b803679a968e", "32bc4820287a1a03982979515949e8ea56eac641" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Aug 09 14:58:34 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Aug 09 14:58:34 2009 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.infradead.org/ubi-2.6\n\n* \u0027for-linus\u0027 of git://git.infradead.org/ubi-2.6:\n UBI: compatible fallback in absense of sequence numbers\n UBI: fix double free on error path\n" }, { "commit": "17d11ba14990d2bbaaec9c09a200b803679a968e", "tree": "94bf086e93f3f5f625b04eb549178180598cd213", "parents": [ "fb1ee451e64a1c963a149aeccd9ef6a718f545e7", "b4a2f5e723e4f7df46731106faf9e2405673c073" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Aug 09 14:58:21 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Aug 09 14:58:21 2009 -0700" }, "message": "Merge branch \u0027kvm-updates/2.6.31\u0027 of git://git.kernel.org/pub/scm/virt/kvm/kvm\n\n* \u0027kvm-updates/2.6.31\u0027 of git://git.kernel.org/pub/scm/virt/kvm/kvm:\n KVM: Avoid redelivery of edge interrupt before next edge\n KVM: MMU: limit rmap chain length\n KVM: ia64: fix build failures due to ia64/unsigned long mismatches\n KVM: Make KVM_HPAGES_PER_HPAGE unsigned long to avoid build error on powerpc\n KVM: fix ack not being delivered when msi present\n KVM: s390: fix wait_queue handling\n KVM: VMX: Fix locking imbalance on emulation failure\n KVM: VMX: Fix locking order in handle_invalid_guest_state\n KVM: MMU: handle n_free_mmu_pages \u003e n_alloc_mmu_pages in kvm_mmu_change_mmu_pages\n KVM: SVM: force new asid on vcpu migration\n KVM: x86: verify MTRR/PAT validity\n KVM: PIT: fix kpit_elapsed division by zero\n KVM: Fix KVM_GET_MSR_INDEX_LIST\n" }, { "commit": "fb1ee451e64a1c963a149aeccd9ef6a718f545e7", "tree": "3c457cc25959d1b934175df20fa2dfe05e2a45ee", "parents": [ "2e9b11afdbfe17a9cc6356076179b7ea11972607", "6cb504c29b1338925c83e4430e42a51eaa43781e" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Aug 09 14:58:09 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Aug 09 14:58:09 2009 -0700" }, "message": "Merge branch \u0027drm-fixes\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6\n\n* \u0027drm-fixes\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:\n drm/i915: silence vblank warnings\n drm: silence pointless vblank warning.\n drm: When adding probed modes, preserve duplicate mode types\n" }, { "commit": "2e9b11afdbfe17a9cc6356076179b7ea11972607", "tree": "d76b83fec78abd1106c645ae705a5815561e8a34", "parents": [ "95d0ad049cd6937634c0a75f9518f5166daabfce", "17d42c1c497aa54952b9e58c1502a46f0df40315" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Aug 09 14:57:41 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Aug 09 14:57:41 2009 -0700" }, "message": "Merge branch \u0027timers-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027timers-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n posix_cpu_timers_exit_group(): Do not use thread_group_cputimer()\n" }, { "commit": "95d0ad049cd6937634c0a75f9518f5166daabfce", "tree": "ace9d7edcda7cf8400dce293ca26a5599cd81720", "parents": [ "413dd8768ada25adbf53284696b71de7e7844969", "f413cdb80ce00ec1a4d0ab949b5d96c81cae7f75" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Aug 09 14:57:26 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Aug 09 14:57:26 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 perf_counter: Fix/complete ftrace event records sampling\n perf_counter, ftrace: Fix perf_counter integration\n tracing/filters: Always free pred on filter_add_subsystem_pred() failure\n tracing/filters: Don\u0027t use pred on alloc failure\n ring-buffer: Fix memleak in ring_buffer_free()\n tracing: Fix recordmcount.pl to handle sections with only weak functions\n ring-buffer: Fix advance of reader in rb_buffer_peek()\n tracing: do not use functions starting with .L in recordmcount.pl\n ring-buffer: do not disable ring buffer on oops_in_progress\n ring-buffer: fix check of try_to_discard result\n" }, { "commit": "413dd8768ada25adbf53284696b71de7e7844969", "tree": "d98c6782dfc3e6f2772d4b04a2f2abf7373d3769", "parents": [ "713e3e1875749f341247a0c922e6ddd38fbd991c", "fdb8a42742ac95606668f73481dfb2f760658fdd" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Aug 09 14:57:09 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Aug 09 14:57:09 2009 -0700" }, "message": "Merge branch \u0027x86-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027x86-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n x86: fix buffer overflow in efi_init()\n x86: Add quirk to make Apple MacBookPro5,1 use reboot\u003dpci\n x86: Fix MSI-X initialization by using online_mask for x2apic target_cpus\n x86: Fix VMI \u0026\u0026 stack protector\n" }, { "commit": "713e3e1875749f341247a0c922e6ddd38fbd991c", "tree": "0419bf8fbb3bf28a275d196bcdcb0d00cf773986", "parents": [ "7b2aa037e878c939676675969983284a02958ae3", "0e692a94e378628b7d527260ad939894454bcca8" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Aug 09 14:56:51 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Aug 09 14:56:51 2009 -0700" }, "message": "Merge branch \u0027core-fixes-for-linus-2\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027core-fixes-for-linus-2\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n lockdep: Fix typos in documentation\n lockdep: Fix file mode of lock_stat\n rtmutex: Avoid deadlock in rt_mutex_start_proxy_lock()\n" }, { "commit": "c0a8865e32c8d1a562db38e06ef31ef23282f646", "tree": "8cf7a402e4012998166287135204c201c6a83acd", "parents": [ "183f3b0887083d36c8a25cd5e3518906415d1889" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sun Aug 09 04:19:15 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Aug 09 13:07:46 2009 +0200" }, "message": "perf tools: callchain: Fix bad rounding of minimum rate\n\nSometimes we get callchain branches that have a rate under the\nlimit given by the user.\n\nSay you launched:\n\n perf record -f -g -a ./hackbench 10\n perf report -g fractal,10.0\n\nAnd you got:\n\n2.33% hackbench [kernel] [k] _spin_lock_irqsave\n |\n |--78.57%-- remove_wait_queue\n | poll_freewait\n | do_sys_poll\n | sys_poll\n | sysenter_dispatch\n | 0xf7ffa430\n | 0x1ffadea3c\n |\n |--7.14%-- __up_read\n | up_read\n | do_page_fault\n | page_fault\n | 0xf7ffa430\n | 0xa0df710000000a\n ...\n\nIt is abnormal to get a 7.14% branch whereas we passed a 10%\nfilter.\n\nThe problem is that we round down the minimum threshold. This\nhappens mostly when we have very low number of events. If the\ntotal amount of your branch is 4 and you have a subranch of 3\nevents, filtering to 90% will be computed like follows:\n\n limit \u003d 4 * 0.9;\n\nThe result is about 3.6, but the cast to integer will round\ndown to 3. It means that our filter is actually of 75%\n\nWe must then explicitly round up the minimum threshold.\n\nReported-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: acme@redhat.com\nCc: peterz@infradead.org\nCc: efault@gmx.de\nLKML-Reference: \u003c20090809024235.GA10146@nowhere\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "183f3b0887083d36c8a25cd5e3518906415d1889", "tree": "ede429e89d4e0553246454a5ee6b36c276872003", "parents": [ "c24b513337f06712b8c81eb4f1413d44591dfee7" ], "author": { "name": "Mike Galbraith", "email": "efault@gmx.de", "time": "Sat Aug 08 14:14:15 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Aug 09 12:54:47 2009 +0200" }, "message": "perf_counter tools: Fix libbfd detection for systems with libz dependency\n\nDue to a libz dependency in some distro\u0027s binutils package,\nC++ demangle support isn\u0027t compiled in despite the necessary\nlibraries being available.\n\nFix this by adding a -lz link test to the dependency detection\nrules.\n\nSigned-off-by: Mike Galbraith \u003cefault@gmx.de\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1249733655.6929.5.camel@marge.simson.net\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "c24b513337f06712b8c81eb4f1413d44591dfee7", "tree": "803dc18c10e93c02cbd0f6b26a072fdc2194935d", "parents": [ "3a80b4a3539696f4b0574876326860323035a302" ], "author": { "name": "Carlos R. Mafra", "email": "crmafra2@gmail.com", "time": "Wed Aug 05 20:53:34 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Aug 09 12:54:46 2009 +0200" }, "message": "perf: \"Longum est iter per praecepta, breve et efficax per exempla\"\n\nA few examples of how \u0027perf\u0027 can be used, from an e-mail by\nIngo Molnar http://lkml.org/lkml/2009/8/4/346.\n\nSigned-off-by: Carlos R. Mafra \u003ccrmafra2@gmail.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Valdis.Kletnieks@vt.edu\nLKML-Reference: \u003c20090805185334.GA4535@Pilar.aei.mpg.de\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "3a80b4a3539696f4b0574876326860323035a302", "tree": "9d2901259a2b25b181997f89495452fd7f06827b", "parents": [ "3a43ce68ae1758fa6a839386025ef45acb6baa22" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Aug 07 19:49:01 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Aug 09 12:54:46 2009 +0200" }, "message": "perf_counter: Fix a race on perf_counter_ctx\n\nWhile extending perfcounters with BTS hw-tracing, Markus\nMetzger managed to trigger this warning:\n\n [ 995.557128] WARNING: at kernel/perf_counter.c:1191 __perf_counter_task_sched_out+0x48/0x6b()\n\ntriggers because commit\n9f498cc5be7e013d8d6e4c616980ed0ffc8680d2 (perf_counter: Full\ntask tracing) removed clearing of tsk-\u003eperf_counter_ctxp out\nfrom under ctx-\u003elock which introduced a race (against\nperf_lock_task_context).\n\nMove it back and deal with the exit notification by explicitly\npassing along the former task context.\n\nReported-by: Markus T Metzger \u003cmarkus.t.metzger@intel.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nLKML-Reference: \u003c1249667341.17467.5.camel@twins\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "3a43ce68ae1758fa6a839386025ef45acb6baa22", "tree": "5431e80f427ac6312dc123ecfdb101ea71b3d364", "parents": [ "10b8e3066066708f304e0fc5cfe658e05abf943d" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sat Aug 08 04:26:37 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Aug 09 12:54:45 2009 +0200" }, "message": "perf_counter: Fix tracepoint sampling to be part of generic sampling\n\nBased on Peter\u0027s comments, make tracepoint sampling generic\njust like all the other sampling bits are. This is a rename\nwith no code changes:\n\n- PERF_SAMPLE_TP_RECORD to PERF_SAMPLE_RAW\n- struct perf_tracepoint_record to perf_raw_record\n\nWe want the system in place that transport tracepoints raw\nsamples events into the perf ring buffer to be generalized and\nusable by any type of counter.\n\nReported-by; Peter Zijlstra \u003cpeterz@infradead.org\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nLKML-Reference: \u003c1249698400-5441-4-git-send-email-fweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "10b8e3066066708f304e0fc5cfe658e05abf943d", "tree": "1ccebafe8ae44f6f032f993c63eb58a6c2aadea4", "parents": [ "25446036cbfc2c89faacdb4fb4603943d2197dc6" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sat Aug 08 04:26:35 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Aug 09 12:54:44 2009 +0200" }, "message": "perf_counter: Work around gcc warning by initializing tracepoint record unconditionally\n\nDespite that the tracepoint record is always present when the\nPERF_SAMPLE_TP_RECORD flag is set, gcc raises a warning,\nthinking it might not be initialized:\n\n kernel/perf_counter.c: In function ‘perf_counter_output’:\n kernel/perf_counter.c:2650: warning: ‘tp’ may be used uninitialized in this function\n\nThen, initialize it to NULL and always check if it\u0027s not NULL\nbefore dereference it.\n\nReported-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nLKML-Reference: \u003c1249698400-5441-2-git-send-email-fweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "25446036cbfc2c89faacdb4fb4603943d2197dc6", "tree": "7eb1e94c6c30b1398221309ccaf71f3beacd694a", "parents": [ "b1a88349c37624755b28ac3b3152b48f52c1f487" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sat Aug 08 02:16:25 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Aug 09 12:54:43 2009 +0200" }, "message": "perf tools: callchain: Fix sum of percentages to be 100% by displaying amount of ignored chains in fractal mode\n\nWhen we filter the callchains below a given percentage, we\nignore them and the end result only shows entries that have an\nupper percentage than the filter threshold.\n\nIt seems to users then that we have an imbalance in the\npercentage, as if the sum inside a profiled branch doesn\u0027t\nreach 100%.\n\nSince in the past there have been real perf report bugs that\nshowed the same sypmtom, it would be nice to assure the user\nthat the data is perfect and trustable and it all sums up to\n100.00%.\n\nSo fix this by displaying the remaining hits that have been\nfiltered but without more detail than their amount in each\nbranches. Example while filtering below 50%:\n\n7.73% [k] delay_tsc\n |\n |--98.22%-- __const_udelay\n | |\n | |--86.37%-- ath5k_hw_register_timeout\n | | ath5k_hw_noise_floor_calibration\n | | ath5k_hw_reset\n | | ath5k_reset\n | | ath5k_config\n | | ieee80211_hw_config\n | | |\n | | |--88.53%-- ieee80211_scan_work\n | | | worker_thread\n | | | kthread\n | | | child_rip\n | | --11.47%-- [...]\n | --13.63%-- [...]\n --1.78%-- [...]\n\nReported-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nLKML-Reference: \u003c1249690585-9145-4-git-send-email-fweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b1a88349c37624755b28ac3b3152b48f52c1f487", "tree": "7dbcf52f06be731e6041c0371b9b185d92cf1eed", "parents": [ "b0efe213f84f7fd5ccfe07053e3d9fb827b7c188" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sat Aug 08 02:16:24 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Aug 09 12:54:42 2009 +0200" }, "message": "perf tools: callchain: Fix \u0027perf report\u0027 display to be callchain by default\n\nIf we recorded with -g option to record the callchain, right now\nwe require a -g option to perf report as well - and people reported\nthis as unnecessary complication: the user already specified -g\nonce, no need to require it a second time.\n\nSo if the recording includes call-chains, display the callchain by\ndefault from perf report.\n\n( The user can override this default using \"-g none\" option from\n perf report. )\n\nReported-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nLKML-Reference: \u003c1249690585-9145-3-git-send-email-fweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b0efe213f84f7fd5ccfe07053e3d9fb827b7c188", "tree": "652a2d089e6c964b963409c1bf4186d4cdc67daa", "parents": [ "266e0e219888420a1a7cafc82e82891cf7b5a979" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sat Aug 08 02:16:23 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Aug 09 12:54:41 2009 +0200" }, "message": "perf tools: callchain: Fix spurious \u0027perf report\u0027 warnings: ignore empty callchains\n\nWhen the callchain tree comes to insert an empty backtrace, it\nraises a spurious warning about the fact we are inserting an\nempty. This is spurious because the radix tree assumes it did\nsomething wrong to reach this state. But it didn\u0027t, we just met\nan empty callchain that has to be ignored.\n\nThis happens occasionally with certain types of call-chain\nrecordings. If it happens it\u0027s a big nuisance as perf report\noutput starts with thousands of warning lines.\n\nReported-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nLKML-Reference: \u003c1249690585-9145-2-git-send-email-fweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "266e0e219888420a1a7cafc82e82891cf7b5a979", "tree": "12a0d8c29552d800cfd44ff4b6e44f0b6f42e7c3", "parents": [ "7eac7e9e726c1b136bd7e0ad6671ce315f48bb18" ], "author": { "name": "Pierre Habouzit", "email": "pierre.habouzit@intersec.com", "time": "Fri Aug 07 14:16:01 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Aug 09 12:54:40 2009 +0200" }, "message": "perf record: Fix the -A UI for empty or non-existent perf.data\n\n1. Ignore the -A argument if there is no perf.data file\n2. Treat an empty file like a non existent file.\n\nElse, perf will try to read the perf.data header, and fail with\nan error.\n\nTreating an empty file like a non-existent file makes sense,\nsince an interupted (as in SIGKILLed) perf could leave such\nfiles around, and you don\u0027t want to annoy the user with errors\nfor files with no data in it.\n\nSigned-off-by: Pierre Habouzit \u003cpierre.habouzit@intersec.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "7eac7e9e726c1b136bd7e0ad6671ce315f48bb18", "tree": "17762cc0b140096e80e6ff509cc423f8e62db7e6", "parents": [ "ae07b63f4b6728e1f98aa5c5416cfc1280f59f51" ], "author": { "name": "Pierre Habouzit", "email": "pierre.habouzit@intersec.com", "time": "Fri Aug 07 14:16:00 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Aug 09 12:54:39 2009 +0200" }, "message": "perf util: Fix do_read() to fail on EOF instead of busy-looping\n\nWhile toying with perf, I\u0027ve noticed that perf record can\neasily enter a busy loop when doing something as silly as:\n\n $ perf record -A ls\n\nYeah, do_read here really wants to read a known size, not being\nable to should die(), not busy-loop ;)\n\nThat was the cause for the bug.\n\nSigned-off-by: Pierre Habouzit \u003cpierre.habouzit@intersec.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ae07b63f4b6728e1f98aa5c5416cfc1280f59f51", "tree": "c2fb9451f371153d7d9a5a609ad22b894efd3ab9", "parents": [ "f36a1a133a947973efb8e6a1fbdcc23e4a011437" ], "author": { "name": "Peter Zijlstra", "email": "peterz@infradead.org", "time": "Thu Aug 06 16:48:54 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Aug 09 12:54:38 2009 +0200" }, "message": "perf list: Fix the output to not include tracepoints without an id\n\nStop perf list from displaying tracepoints without an id file,\nthose are special tracepoints that are not interfaced to\nperfcounters so listing them is erroneous and passing them as\nevents will produce no output.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Chris Mason \u003cchris.mason@oracle.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "f36a1a133a947973efb8e6a1fbdcc23e4a011437", "tree": "c635e0a3a8329aac348c2e861f91347abe59792f", "parents": [ "b26bc5a7f81474937e427b0c855eabee5ad56f89" ], "author": { "name": "Paul Mackerras", "email": "paulus@samba.org", "time": "Fri Aug 07 16:59:45 2009 +1000" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Aug 09 12:54:37 2009 +0200" }, "message": "perf_counter/powerpc: Fix oops on cpus without perf_counter hardware support\n\nIf we have the powerpc perf_counter backend compiled in, but\nthe cpu we are running on is one where we don\u0027t support the\nPMU, we currently oops in hw_perf_group_sched_in if we try to\nuse any counters, because ppmu is NULL in that case, and we\nunconditionally dereference ppmu.\n\nThis fixes the problem by adding a check if ppmu is NULL at the\nbeginning of hw_perf_group_sched_in, and also at the beginning\nof the other functions that get called from the perf_counter\ncore, i.e. hw_perf_disable, hw_perf_enable, and\nhw_perf_counter_setup.\n\nSigned-off-by: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: benh@kernel.crashing.org\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b26bc5a7f81474937e427b0c855eabee5ad56f89", "tree": "300d07ae61d150ac6b15d54898d139a54090be34", "parents": [ "94cb9e385d5b4d55a5ae389baa10ad2835ea39bb" ], "author": { "name": "Brice Goglin", "email": "Brice.Goglin@inria.fr", "time": "Fri Aug 07 10:18:39 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Aug 09 12:54:37 2009 +0200" }, "message": "perf stat: Fix tool option consistency: rename -S/--scale to -c/--scale\n\nWe want to use a coherent flag for -S/--stat across all tools,\nso free up -S in perf stat.\n\nSigned-off-by: Brice Goglin \u003cBrice.Goglin@inria.fr\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: paulus@samba.org\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" } ], "next": "94cb9e385d5b4d55a5ae389baa10ad2835ea39bb" }