)]}' { "log": [ { "commit": "8d65af789f3e2cf4cfbdbf71a0f7a61ebcd41d38", "tree": "121df3bfffc7853ac6d2c514ad514d4a748a0933", "parents": [ "c0d0787b6d47d9f4d5e8bd321921104e854a9135" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Wed Sep 23 15:57:19 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Sep 24 07:21:04 2009 -0700" }, "message": "sysctl: remove \"struct file *\" argument of -\u003eproc_handler\n\nIt\u0027s unused.\n\nIt isn\u0027t needed -- read or write flag is already passed and sysctl\nshouldn\u0027t care about the rest.\n\nIt _was_ used in two places at arch/frv for some reason.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: David Howells \u003cdhowells@redhat.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nCc: James Morris \u003cjmorris@namei.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "79f5599772ac2f138d7a75b8f3f06a93f09c75f7", "tree": "092c9f6e3f7c49d8f5bb9f3d39752ae7cfb9415a", "parents": [ "a724eada8c2a7b62463b73ccf73fd0bb6e928aeb" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Mon Jun 15 14:58:26 2009 +0800" }, "committer": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Thu Sep 24 09:34:24 2009 +0930" }, "message": "cpumask: use zalloc_cpumask_var() where possible\n\nRemove open-coded zalloc_cpumask_var() and zalloc_cpumask_var_node().\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n" }, { "commit": "88e9d34c727883d7d6f02cf1475b3ec98b8480c7", "tree": "475f544536d52739e0929e7727cab5124e855a06", "parents": [ "b7ed698cc9d556306a4088c238e2ea9311ea2cb3" ], "author": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Tue Sep 22 16:43:43 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:29 2009 -0700" }, "message": "seq_file: constify seq_operations\n\nMake all seq_operations structs const, to help mitigate against\nrevectoring user-triggerable function pointers.\n\nThis is derived from the grsecurity patch, although generated from scratch\nbecause it\u0027s simpler than extracting the changes from there.\n\nSigned-off-by: James Morris \u003cjmorris@namei.org\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nAcked-by: Casey Schaufler \u003ccasey@schaufler-ca.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "342ff1a1b558ebbdb8cbd55ab6a63eca8b2473ca", "tree": "1f967f283dade6e03897169bb29513354f49f910", "parents": [ "50223e486cabdcf7e540e519da1f26bab3084e5d", "24ed7a97464db44592495f98cff8bcee02f92bc2" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:51:45 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:51:45 2009 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (34 commits)\n trivial: fix typo in aic7xxx comment\n trivial: fix comment typo in drivers/ata/pata_hpt37x.c\n trivial: typo in kernel-parameters.txt\n trivial: fix typo in tracing documentation\n trivial: add __init/__exit macros in drivers/gpio/bt8xxgpio.c\n trivial: add __init macro/ fix of __exit macro location in ipmi_poweroff.c\n trivial: remove unnecessary semicolons\n trivial: Fix duplicated word \"options\" in comment\n trivial: kbuild: remove extraneous blank line after declaration of usage()\n trivial: improve help text for mm debug config options\n trivial: doc: hpfall: accept disk device to unload as argument\n trivial: doc: hpfall: reduce risk that hpfall can do harm\n trivial: SubmittingPatches: Fix reference to renumbered step\n trivial: fix typos \"man[ae]g?ment\" -\u003e \"management\"\n trivial: media/video/cx88: add __init/__exit macros to cx88 drivers\n trivial: fix typo in CONFIG_DEBUG_FS in gcov doc\n trivial: fix missing printk space in amd_k7_smp_check\n trivial: fix typo s/ketymap/keymap/ in comment\n trivial: fix typo \"to to\" in multiple files\n trivial: fix typos in comments s/DGBU/DBGU/\n ...\n" }, { "commit": "43c1266ce4dc06bfd236cec31e11e9ecd69c0bef", "tree": "40a86739ca4c36200f447f655b01c57cfe646e26", "parents": [ "b8c7f1dc5ca4e0d10709182233cdab932cef593d", "57c0c15b5244320065374ad2c54f4fbec77a6428" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Sep 21 09:15:07 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Sep 21 09:15:07 2009 -0700" }, "message": "Merge branch \u0027perfcounters-rename-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perfcounters-rename-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n perf: Tidy up after the big rename\n perf: Do the big rename: Performance Counters -\u003e Performance Events\n perf_counter: Rename \u0027event\u0027 to event_id/hw_event\n perf_counter: Rename list_entry -\u003e group_entry, counter_list -\u003e group_list\n\nManually resolved some fairly trivial conflicts with the tracing tree in\ninclude/trace/ftrace.h and kernel/trace/trace_syscalls.c.\n" }, { "commit": "8e4bc3dd2ca07d77882eba73cea240aba95a1854", "tree": "da105cd2c4f51c78c401c00d8b399572914694ed", "parents": [ "bd4c3a3441144cd46d1f544046523724c5bc6e94", "0d721ceadbeaa24d7f9dd41b3e5e29912327a7e1" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Sep 21 09:06:17 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Sep 21 09:06:17 2009 -0700" }, "message": "Merge branch \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n sched: Simplify sys_sched_rr_get_interval() system call\n sched: Fix potential NULL derference of doms_cur\n sched: Fix raciness in runqueue_is_locked()\n sched: Re-add lost cpu_allowed check to sched_fair.c::select_task_rq_fair()\n sched: Remove unneeded indentation in sched_fair.c::place_entity()\n" }, { "commit": "bd4c3a3441144cd46d1f544046523724c5bc6e94", "tree": "8b5c67249a7a163caf3f88cbcb9df5236fcc3b93", "parents": [ "b3727c24da69971503a4ca98b3b877753c6a4393", "583a22e7c154dc0a3938db522696b4bc7f098f59" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Sep 21 09:05:47 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Sep 21 09:05:47 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 kernel/profile.c: Switch /proc/irq/prof_cpu_mask to seq_file\n tracing: Export trace_profile_buf symbols\n tracing/events: use list_for_entry_continue\n tracing: remove max_tracer_type_len\n function-graph: use ftrace_graph_funcs directly\n tracing: Remove markers\n tracing: Allocate the ftrace event profile buffer dynamically\n tracing: Factorize the events profile accounting\n" }, { "commit": "a419aef8b858a2bdb98df60336063d28df4b272f", "tree": "1736f6650ec0bfc01074c489fc47396114099c5e", "parents": [ "2944fcbe03d65a704f07e43efe14adb0d226fd09" ], "author": { "name": "Joe Perches", "email": "joe@perches.com", "time": "Tue Aug 18 11:18:35 2009 -0700" }, "committer": { "name": "Jiri Kosina", "email": "jkosina@suse.cz", "time": "Mon Sep 21 15:14:58 2009 +0200" }, "message": "trivial: remove unnecessary semicolons\n\nSigned-off-by: Joe Perches \u003cjoe@perches.com\u003e\nSigned-off-by: Jiri Kosina \u003cjkosina@suse.cz\u003e\n" }, { "commit": "2944fcbe03d65a704f07e43efe14adb0d226fd09", "tree": "875e431be243f77fe04aaa57d5b5288d22532b44", "parents": [ "f0a75770bde5cb5f9596bd0256d8ec3649720525" ], "author": { "name": "Uwe Kleine-Koenig", "email": "u.kleine-koenig@pengutronix.de", "time": "Wed Aug 05 22:06:42 2009 +0200" }, "committer": { "name": "Jiri Kosina", "email": "jkosina@suse.cz", "time": "Mon Sep 21 15:14:58 2009 +0200" }, "message": "trivial: Fix duplicated word \"options\" in comment\n\nthis was introduced in\n\n\t5e0a093 (tracing: fix config options to not show when automatically selected)\n\nSigned-off-by: Uwe Kleine-Koenig \u003cu.kleine-koenig@pengutronix.de\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: trivial@kernel.org\nSigned-off-by: Jiri Kosina \u003cjkosina@suse.cz\u003e\n" }, { "commit": "cdd6c482c9ff9c55475ee7392ec8f672eddb7be6", "tree": "81f98a3ab46c589792057fe2392c1e10f8ad7893", "parents": [ "dfc65094d0313cc48969fa60bcf33d693aeb05a7" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Sep 21 12:02:48 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Sep 21 14:28:04 2009 +0200" }, "message": "perf: Do the big rename: Performance Counters -\u003e Performance Events\n\nBye-bye Performance Counters, welcome Performance Events!\n\nIn the past few months the perfcounters subsystem has grown out its\ninitial role of counting hardware events, and has become (and is\nbecoming) a much broader generic event enumeration, reporting, logging,\nmonitoring, analysis facility.\n\nNaming its core object \u0027perf_counter\u0027 and naming the subsystem\n\u0027perfcounters\u0027 has become more and more of a misnomer. With pending\ncode like hw-breakpoints support the \u0027counter\u0027 name is less and\nless appropriate.\n\nAll in one, we\u0027ve decided to rename the subsystem to \u0027performance\nevents\u0027 and to propagate this rename through all fields, variables\nand API names. (in an ABI compatible fashion)\n\nThe word \u0027event\u0027 is also a bit shorter than \u0027counter\u0027 - which makes\nit slightly more convenient to write/handle as well.\n\nThanks goes to Stephane Eranian who first observed this misnomer and\nsuggested a rename.\n\nUser-space tooling and ABI compatibility is not affected - this patch\nshould be function-invariant. (Also, defconfigs were not touched to\nkeep the size down.)\n\nThis patch has been generated via the following script:\n\n FILES\u003d$(find * -type f | grep -vE \u0027oprofile|[^K]config\u0027)\n\n sed -i \\\n -e \u0027s/PERF_EVENT_/PERF_RECORD_/g\u0027 \\\n -e \u0027s/PERF_COUNTER/PERF_EVENT/g\u0027 \\\n -e \u0027s/perf_counter/perf_event/g\u0027 \\\n -e \u0027s/nb_counters/nb_events/g\u0027 \\\n -e \u0027s/swcounter/swevent/g\u0027 \\\n -e \u0027s/tpcounter_event/tp_event/g\u0027 \\\n $FILES\n\n for N in $(find . -name perf_counter.[ch]); do\n M\u003d$(echo $N | sed \u0027s/perf_counter/perf_event/g\u0027)\n mv $N $M\n done\n\n FILES\u003d$(find . -name perf_event.*)\n\n sed -i \\\n -e \u0027s/COUNTER_MASK/REG_MASK/g\u0027 \\\n -e \u0027s/COUNTER/EVENT/g\u0027 \\\n -e \u0027s/\\\u003cevent\\\u003e/event_id/g\u0027 \\\n -e \u0027s/counter/event/g\u0027 \\\n -e \u0027s/Counter/Event/g\u0027 \\\n $FILES\n\n... to keep it as correct as possible. This script can also be\nused by anyone who has pending perfcounters patches - it converts\na Linux kernel tree over to the new naming. We tried to time this\nchange to the point in time where the amount of pending patches\nis the smallest: the end of the merge window.\n\nNamespace clashes were fixed up in a preparatory patch - and some\nstylistic fallout will be fixed up in a subsequent patch.\n\n( NOTE: \u0027counters\u0027 are still the proper terminology when we deal\n with hardware registers - and these sed scripts are a bit\n over-eager in renaming them. I\u0027ve undone some of that, but\n in case there\u0027s something left where \u0027counter\u0027 would be\n better than \u0027event\u0027 we can undo that on an individual basis\n instead of touching an otherwise nicely automated patch. )\n\nSuggested-by: Stephane Eranian \u003ceranian@google.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Paul Mackerras \u003cpaulus@samba.org\u003e\nReviewed-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: David Howells \u003cdhowells@redhat.com\u003e\nCc: Kyle McMartin \u003ckyle@mcmartin.ca\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: \"H. Peter Anvin\" \u003chpa@zytor.com\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ebc79c4f8da0f92efa968e0328f32334a2ce80cf", "tree": "8a3ff82f4b7ae26df4f7c8b4c852748f7533a418", "parents": [ "dcbb5593d980bbf4ceef320f8c75210398ed84db", "5ac7687860dbfd3dd90e09d2c10dd31de91f20c2" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Sep 20 16:02:06 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Sep 20 16:02:06 2009 -0700" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/jaswinder/linux-2.6\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/jaswinder/linux-2.6:\n includecheck fix: x86, cpu/common.c\n includecheck fix: kernel/trace, ring_buffer.c\n includecheck fix: include/linux, ftrace.h\n includecheck fix: include/linux, page_cgroup.h\n includecheck fix: include/linux, aio.h\n includecheck fix: include/drm, drm_memory.h\n includecheck fix: include/acpi, acpi_bus.h\n includecheck fix: drivers/xen, evtchn.c\n includecheck fix: drivers/video, vgacon.c\n includecheck fix: drivers/scsi, ibmvscsi.c\n includecheck fix: drivers/scsi, libfcoe.c\n includecheck fix: x86, shadow.c\n includecheck fix: x86, traps.c\n includecheck fix: um, helper.c\n includecheck fix: s390, sys_s390.c\n" }, { "commit": "89f19f04dc72363d912fd007a399cb10310eff6e", "tree": "daa64e5de98a668eed4a2ceeb6ca95c478be4053", "parents": [ "3f04e8cd5b24727a2500f8ab8f3de730ba47b02c" ], "author": { "name": "Andrew Morton", "email": "akpm@linux-foundation.org", "time": "Sat Sep 19 11:55:44 2009 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Sep 20 20:00:32 2009 +0200" }, "message": "sched: Fix raciness in runqueue_is_locked()\n\nrunqueue_is_locked() is unavoidably racy due to a poor interface design.\nIt does\n\n\tcpu \u003d get_cpu()\n\tret \u003d some_perpcu_thing(cpu);\n\tput_cpu(cpu);\n\treturn ret;\n\nIts return value is unreliable.\n\nFix.\n\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nAcked-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c200909191855.n8JItiko022148@imap1.linux-foundation.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "05bafda856092de0705de239c846777bddb94974", "tree": "c541e77594169545b66abb5d5a444868a6ee56b1", "parents": [ "2df28818047f7cbd8ece9c965a0e8a423c80d511" ], "author": { "name": "Peter Zijlstra", "email": "peterz@infradead.org", "time": "Sun Sep 20 12:34:38 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Sep 20 19:15:57 2009 +0200" }, "message": "tracing: Export trace_profile_buf symbols\n\nERROR: \"trace_profile_buf_nmi\" [fs/jbd2/jbd2.ko] undefined!\nERROR: \"trace_profile_buf\" [fs/jbd2/jbd2.ko] undefined!\nERROR: \"trace_profile_buf_nmi\" [fs/ext4/ext4.ko] undefined!\nERROR: \"trace_profile_buf\" [fs/ext4/ext4.ko] undefined!\nERROR: \"trace_profile_buf_nmi\" [arch/x86/kvm/kvm.ko] undefined!\nERROR: \"trace_profile_buf\" [arch/x86/kvm/kvm.ko] undefined!\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c1253442878.7542.3.camel@laptop\u003e\n[ fixed whitespace noise and checkpatch complaint ]\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "a0f320f48799f67329fcb1b26ff0451c304e1dde", "tree": "8cd612b80bae886e7de4d58430e072a4a4b9d351", "parents": [ "83ba7c34d2b82dc608647f629616df393ab883f9" ], "author": { "name": "Jaswinder Singh Rajput", "email": "jaswinderrajput@gmail.com", "time": "Sun Sep 20 16:31:16 2009 +0530" }, "committer": { "name": "Jaswinder Singh Rajput", "email": "jaswinderrajput@gmail.com", "time": "Sun Sep 20 16:58:56 2009 +0530" }, "message": "includecheck fix: kernel/trace, ring_buffer.c\n\nfix the following \u0027make includecheck\u0027 warning:\n\n kernel/trace/ring_buffer.c: trace.h is included more than once.\n\nSigned-off-by: Jaswinder Singh Rajput \u003cjaswinderrajput@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Sam Ravnborg \u003csam@ravnborg.org\u003e\nLKML-Reference: \u003c1247068617.4382.107.camel@ht.satnam\u003e\n" }, { "commit": "2df28818047f7cbd8ece9c965a0e8a423c80d511", "tree": "9de72c5e53ad8a27c7b901fb0490b79900fa6840", "parents": [ "be4bdbfbae6b303c21ebe446648f617908a794b5", "30bd39cd6244ffe3258c9203405286ef77b1c4eb" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Sep 19 19:21:15 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Sep 19 19:21:15 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/urgent\n" }, { "commit": "30bd39cd6244ffe3258c9203405286ef77b1c4eb", "tree": "db9227aa02a974283354e10650bdd372266fe0da", "parents": [ "ee6c2c1bd15e60a442d1861b66285f112ce4f25c" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Fri Sep 18 14:07:05 2009 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Sat Sep 19 11:30:40 2009 -0400" }, "message": "tracing/events: use list_for_entry_continue\n\nSimplify s_next() and t_next().\n\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4AB32389.1030005@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "ee6c2c1bd15e60a442d1861b66285f112ce4f25c", "tree": "7ba74a6e1483de3a7a415e06cc7768dfea4a999c", "parents": [ "a4ec5e0c2681b8cf99ddabf118705847f7460f19" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Fri Sep 18 14:06:47 2009 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Sat Sep 19 11:28:19 2009 -0400" }, "message": "tracing: remove max_tracer_type_len\n\nLimit the length of a tracer\u0027s name within 100 chars, and then we\ndon\u0027t have to play with max_tracer_type_len.\n\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4AB32377.9020601@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "a4ec5e0c2681b8cf99ddabf118705847f7460f19", "tree": "d345e9d6037d7652184b780f49f31e19eba61061", "parents": [ "0efb4d20723d58edbad29d1ff98a86b631adb5e6" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Fri Sep 18 14:06:28 2009 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Sat Sep 19 11:26:54 2009 -0400" }, "message": "function-graph: use ftrace_graph_funcs directly\n\nNo need to store ftrace_graph_funcs in file-\u003eprivate.\n\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4AB32364.7020602@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "be4bdbfbae6b303c21ebe446648f617908a794b5", "tree": "4ea485b2fa95cb17aded35b0ac83d6bdf9a0396d", "parents": [ "fc5377668c3d808e1d53c4aee152c836f55c3490", "20ab4425a77a1f34028cc6ce57053c22c184ba5f" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Sep 19 12:05:25 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Sep 19 12:05:25 2009 +0200" }, "message": "Merge branch \u0027tracing/core-v3\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing into tracing/urgent\n" }, { "commit": "6161352142d5fed4cd753b32e5ccde66e705b14e", "tree": "d64d0e3e6c44440181ddb5d1bc6884067fee0749", "parents": [ "fd39e055c4fefa4553efc9030f9903afdc6ee323" ], "author": { "name": "Arjan van de Ven", "email": "arjan@linux.intel.com", "time": "Thu Sep 17 16:11:28 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Sep 19 11:42:12 2009 +0200" }, "message": "tracing, perf: Convert the power tracer into an event tracer\n\nThis patch converts the existing power tracer into an event tracer,\nso that power events (C states and frequency changes) can be\ntracked via \"perf\".\n\nThis also removes the perl script that was used to demo the tracer;\nits functionality is being replaced entirely with timechart.\n\nSigned-off-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c20090912130542.6d314860@infradead.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "fc5377668c3d808e1d53c4aee152c836f55c3490", "tree": "366723ccb26a64c311074c346721aaf4ff0e7d58", "parents": [ "df58bee21ed218cb7dfb561a590b1bd2a99531cf" ], "author": { "name": "Christoph Hellwig", "email": "hch@lst.de", "time": "Thu Sep 17 19:35:28 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Sep 18 21:22:08 2009 +0200" }, "message": "tracing: Remove markers\n\nNow that the last users of markers have migrated to the event\ntracer we can kill off the (now orphan) support code.\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nAcked-by: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c20090917173527.GA1699@lst.de\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "20ab4425a77a1f34028cc6ce57053c22c184ba5f", "tree": "ca821b19593c3821fa13a520201537ad35e4c98d", "parents": [ "e5e25cf47b0bdd1f7e9b8bb6368ee48e16de0c87" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Fri Sep 18 06:10:28 2009 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Fri Sep 18 07:25:44 2009 +0200" }, "message": "tracing: Allocate the ftrace event profile buffer dynamically\n\nCurrently the trace event profile buffer is allocated in the stack. But\nthis may be too much for the stack, as the events can have large\nstatically defined field size and can also grow with dynamic arrays.\n\nAllocate two per cpu buffer for all profiled events. The first cpu\nbuffer is used to host every non-nmi context traces. It is protected\nby disabling the interrupts while writing and committing the trace.\n\nThe second buffer is reserved for nmi. So that there is no race between\nthem and the first buffer.\n\nThe whole write/commit section is rcu protected because we release\nthese buffers while deactivating the last profiling trace event.\n\nv2: Move the buffers from trace_event to be global, as pointed by\n Steven Rostedt.\n\nv3: Fix the syscall events to handle the profiling buffer races\n by disabling interrupts, now that the buffers are globals.\n\nSuggested-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e5e25cf47b0bdd1f7e9b8bb6368ee48e16de0c87", "tree": "043e6215359853812130324a24e3d03511b41e2b", "parents": [ "0efb4d20723d58edbad29d1ff98a86b631adb5e6" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Fri Sep 18 00:54:43 2009 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Fri Sep 18 06:14:32 2009 +0200" }, "message": "tracing: Factorize the events profile accounting\n\nFactorize the events enabling accounting in a common tracing core\nhelper. This reduces the size of the profile_enable() and\nprofile_disable() callbacks for each trace events.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nAcked-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nAcked-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b375a11a239e9e1cac40c7f3ff28b343d9f7ac51", "tree": "c69d29112ac9eb3689ddac166df65d06b268ad6d", "parents": [ "91adcd2c4b104a8ce2973e6e84b01fd48735ffc6" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Thu Sep 17 00:05:58 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Thu Sep 17 15:53:40 2009 -0400" }, "message": "tracing: switch function prints from %pf to %ps\n\nFor direct function pointers (like what mcount provides) PowerPC64\nrequires the use of %ps, otherwise nothing is printed.\n\nThis patch converts all prints of functions retrieved through mcount\nto use the %ps format from the %pf.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "45bd00d31de886f8425b4dd33204b911b0a466a9", "tree": "06204f2452e02ca916666173d50f5035d69065ef", "parents": [ "40d9d82c8ab8c4e2373a23a1e31dc8d84c53aa01", "ab86e5765d41a5eb4239a1c04d613db87bea5ed8" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Sep 17 20:52:23 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Sep 17 20:53:10 2009 +0200" }, "message": "Merge branch \u0027linus\u0027 into tracing/core\n\nMerge reason: Pick up kernel/softirq.c update for dependent fix.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b36461da2a0389149d7f88f3cbc05a30d1db9faa", "tree": "c9a4a6414185474e106d538705089a3fa3506a45", "parents": [ "fe832a3a48737b24f95fab202b1c67fb588b071d" ], "author": { "name": "Atsushi Tsuji", "email": "a-tsuji@bk.jp.nec.com", "time": "Tue Sep 15 19:06:30 2009 +0900" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Sep 16 09:08:54 2009 -0400" }, "message": "tracing: Fix minor bugs for __unregister_ftrace_function_probe\n\nFix the condition of strcmp for \"*\".\nAlso fix NULL pointer dereference when glob is NULL.\n\nSigned-off-by: Atsushi Tsuji \u003ca-tsuji@bk.jp.nec.com\u003e\nLKML-Reference: \u003c4AAF6726.5090905@bk.jp.nec.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "ada3fa15057205b7d3f727bba5cd26b5912e350f", "tree": "60962fc9e4021b92f484d1a58e72cd3906d4f3db", "parents": [ "2f82af08fcc7dc01a7e98a49a5995a77e32a2925", "5579fd7e6aed8860ea0c8e3f11897493153b10ad" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 15 09:39:44 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 15 09:39:44 2009 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: (46 commits)\n powerpc64: convert to dynamic percpu allocator\n sparc64: use embedding percpu first chunk allocator\n percpu: kill lpage first chunk allocator\n x86,percpu: use embedding for 64bit NUMA and page for 32bit NUMA\n percpu: update embedding first chunk allocator to handle sparse units\n percpu: use group information to allocate vmap areas sparsely\n vmalloc: implement pcpu_get_vm_areas()\n vmalloc: separate out insert_vmalloc_vm()\n percpu: add chunk-\u003ebase_addr\n percpu: add pcpu_unit_offsets[]\n percpu: introduce pcpu_alloc_info and pcpu_group_info\n percpu: move pcpu_lpage_build_unit_map() and pcpul_lpage_dump_cfg() upward\n percpu: add @align to pcpu_fc_alloc_fn_t\n percpu: make @dyn_size mandatory for pcpu_setup_first_chunk()\n percpu: drop @static_size from first chunk allocators\n percpu: generalize first chunk allocator selection\n percpu: build first chunk allocators selectively\n percpu: rename 4k first chunk allocator to page\n percpu: improve boot messages\n percpu: fix pcpu_reclaim() locking\n ...\n\nFix trivial conflict as by Tejun Heo in kernel/sched.c\n" }, { "commit": "6ca6cca31ddc7cc8b1dc38b12d7593d2667defe8", "tree": "ca29469e6f270d9c9a85ac77c41658ebbfd8f99f", "parents": [ "555f386c98cc93890f48fdea098936755270304b" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue Sep 15 12:24:22 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Tue Sep 15 12:24:22 2009 -0400" }, "message": "tracing: optimize global_trace_clock cachelines\n\nThe prev_trace_clock_time is only read or written to when the\ntrace_clock_lock is taken. For better perfomance, they\nshould share the same cache line.\n\nReported-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "555f386c98cc93890f48fdea098936755270304b", "tree": "1c0d9c2124327511e2e5bb26b24d305e8f701341", "parents": [ "1f5a6b45416694ff8c0d04625f1a438a0e380add" ], "author": { "name": "Mike Frysinger", "email": "vapier@gentoo.org", "time": "Mon Sep 14 20:10:15 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Mon Sep 14 21:43:15 2009 -0400" }, "message": "ftrace: document function and function graph implementation\n\nWhile implementing function tracer and function tracer graph support,\nI found the exact arch implementation details to be a bit lacking\n(and my x86 foo ain\u0027t great). So after pounding out support for\nthe Blackfin arch, start documenting the requirements/details.\n\nSigned-off-by: Mike Frysinger \u003cvapier@gentoo.org\u003e\nLKML-Reference: \u003c1252973415-21264-1-git-send-email-vapier@gentoo.org\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "1f5a6b45416694ff8c0d04625f1a438a0e380add", "tree": "bdf5a59ac8297ead4dd8fabea6124beb7d965cb4", "parents": [ "20a58a77231c5f5f61470932503b889303e8d4f3" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Mon Sep 14 11:58:24 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Mon Sep 14 11:58:24 2009 -0400" }, "message": "tracing: make testing syscall events a separate configuration\n\nParag noticed that the number of event tests has increased tremendously:\n\ngrep \"Testing event\" dmesg.31rc9 |wc -l\n100\n\ngrep \"Testing event\" dmesg.31git |wc -l\n1172\n\nThis is due to the testing of every syscall event when ftrace self\ntest is enabled. This adds a bit more time to kernel boot up and can\naffect development by slowing down the time it takes between reboots.\n\nThis option makes the testing of the syscall events into a separate\nconfig, to still be able to test most of ftrace internals at boot up\nbut not have to wait for all the syscall events to be tested.\n\nThe syscall event testing only tests the enabling and disabling of\nthe trace point, since the syscalls are not executed. What really needs\nto be done is to somehow have a userspace tool test the syscall tracepoints\nas well.\n\nReported-by: Parag Warudkar \u003cparag.lkml@gmail.com\u003e\nLKML-Reference: \u003cf7848160909130815l3e768a30n3b28808bbe5c254b@mail.gmail.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "20a58a77231c5f5f61470932503b889303e8d4f3", "tree": "f9c3b0b6071dce526c63bb0c38f68a0865a62cb8", "parents": [ "05ffa2d02066c2cb169c02d5417308ee8ecab638" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Mon Sep 14 15:55:18 2009 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Mon Sep 14 11:43:24 2009 -0400" }, "message": "tracing: remove some unused macros\n\n- remove FTRACE_ENTRY_STRUCT_ONLY()\n- remove TRACE_XXX() macros\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4AADF6E6.3080606@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "05ffa2d02066c2cb169c02d5417308ee8ecab638", "tree": "bbb33cdcefe8cb3335d0fc42baddd1d723e879ea", "parents": [ "c16de8fd7a608aba8708dd056cf6e4d9462e800a" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Mon Sep 14 15:54:52 2009 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Mon Sep 14 11:42:10 2009 -0400" }, "message": "ftrace: add compile-time check on F_printk()\n\nMake sure F_printk() has corrent format and args, and make sure\nchanges in F_STRUCT() won\u0027t break F_printk().\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4AADF6CC.1060809@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "c16de8fd7a608aba8708dd056cf6e4d9462e800a", "tree": "adddc04477a4c723afff3e0e9f50796bc898c526", "parents": [ "a48f494e1dbdcf4fb7c02100ae3208c4c1daecbf" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Mon Sep 14 15:51:39 2009 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Mon Sep 14 11:40:59 2009 -0400" }, "message": "tracing: fix F_printk() typos\n\nI found some typos in F_printk(), so I wrote compile-time check\nfor it, and triggered some compile errors and warnings.\n\nI\u0027ve fixed them on x86_32, but I have no x86_64 in my hand, so there\nmay still be some compile warnings on 64bits.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4AADF60B.5070407@cn.fujitsu.com\u003e\n\n[ tested on x86_64, and works fine ]\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "ec827c7ece8901044e6b3f92aeea489be9e1bcf7", "tree": "e856e477b5ca2dfa2073709856d8493b201ae377", "parents": [ "08a408161749d2406f94f4e3d47cfdbc826ad1cc" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Mon Sep 14 10:50:23 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Mon Sep 14 10:50:23 2009 -0400" }, "message": "tracing: add static to generated TRACE_EVENT functions\n\nSome of the generated functions used in the TRACE_EVENT macros are\nnot declared static, but they are not global.\n\nDiscovered by sparse.\n\nReported-by: Jaswinder Singh Rajput \u003cjaswinder@kernel.org\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "08a408161749d2406f94f4e3d47cfdbc826ad1cc", "tree": "6132140fe47c4825159dda8f8f438ac8baae6055", "parents": [ "60ba77022712c7cda0eda286154bae160446b24a" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Mon Sep 14 09:31:35 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Mon Sep 14 09:41:57 2009 -0400" }, "message": "ring-buffer: typecast cmpxchg to fix PowerPC warning\n\nThe cmpxchg used by PowerPC does the following:\n\n ({\t\t\t\t\t\t\t\t\t \\\n __typeof__(*(ptr)) _o_ \u003d (o);\t\t\t\t\t \\\n __typeof__(*(ptr)) _n_ \u003d (n);\t\t\t\t\t \\\n (__typeof__(*(ptr))) __cmpxchg((ptr), (unsigned long)_o_,\t\t \\\n\t\t\t\t (unsigned long)_n_, sizeof(*(ptr))); \\\n })\n\nThis does a type check of *ptr to both o and n.\n\nUnfortunately, the code in ring-buffer.c assigns longs to pointers\nand pointers to longs and causes a warning on PowerPC:\n\nring_buffer.c: In function \u0027rb_head_page_set\u0027:\nring_buffer.c:704: warning: initialization makes pointer from integer without a cast\nring_buffer.c:704: warning: initialization makes pointer from integer without a cast\nring_buffer.c: In function \u0027rb_head_page_replace\u0027:\nring_buffer.c:797: warning: initialization makes integer from pointer without a cast\n\nThis patch adds the typecasts inside cmpxchg to annotate that a long is\nbeing cast to a pointer and a pointer is being casted to a long and this\nremoves the PowerPC warnings.\n\nReported-by: Stephen Rothwell \u003csfr@canb.auug.org.au\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "60ba77022712c7cda0eda286154bae160446b24a", "tree": "3cd975b44ac716e079fdfcb1d4b9cd3efc815500", "parents": [ "51df5fcbc1296a84cf1c093c6cb56d40ca3e697e" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Sat Sep 12 23:34:04 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Sat Sep 12 23:34:04 2009 -0400" }, "message": "tracing: add filter event logic to special, mmiotrace and boot tracers\n\nNow that the pluging tracers use macros to create the structures and\nautomate the exporting of their formats to the format files, they also\nautomatically get a filter file.\n\nThis patch adds the code to implement the filter logic in the trace\nrecordings.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "51df5fcbc1296a84cf1c093c6cb56d40ca3e697e", "tree": "8b9a330687c757e292718169f9d13a0b22b5a6db", "parents": [ "4e5292ea1ac0c2939e815e6c44fad3d8696ea281" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Sat Sep 12 20:29:22 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Sat Sep 12 23:08:11 2009 -0400" }, "message": "tracing: remove trace_event_types.h\n\nThe macros in trace_entries.h have made the code in trace_event_types.h\nobsolete. The file is no longer used, so this patch removes it.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "4e5292ea1ac0c2939e815e6c44fad3d8696ea281", "tree": "f97dbe73d38b893ee5a2458a1d97490789e6ccb0", "parents": [ "d73150943cf47b6cabcb4f4e52dd25975e820ae2" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Sat Sep 12 19:26:21 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Sat Sep 12 23:08:10 2009 -0400" }, "message": "tracing: use the new trace_entries.h to create format files\n\nThis patch changes the way the format files in\n\n debugfs/tracing/events/ftrace/*/format\n\nare created. It uses the new trace_entries.h file to automate the\ncreation of the format files to ensure that they are always in sync\nwith the actual structures. This is the same methodology used to\ncreate the format files for the TRACE_EVENT macro.\n\nThis also updates the filter creation that was built on the creation\nof the format files.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "d73150943cf47b6cabcb4f4e52dd25975e820ae2", "tree": "ba711d32aacb2c5627d2acd636e82b819598120c", "parents": [ "0a1c49db8d91c538f104f8d70e560c6fdd589bd4" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Sat Sep 12 19:22:23 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Sat Sep 12 23:08:07 2009 -0400" }, "message": "tracing: show details of structures within the ftrace structures\n\nSome of the internal ftrace structures use structures within. The\noutput of a field saying it is just a structure is useless for a format\nfile. A binary reader of the ring buffer needs to know more about\nhow the fields are broken up.\n\nThis patch adds to the ftrace structure macros new fields to\ndescribe the structures inside a structure.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "0a1c49db8d91c538f104f8d70e560c6fdd589bd4", "tree": "41cf96b9c7bd351702526c6313cef9944c741954", "parents": [ "16bb8eb1b73bf940d30ff88cae622bfcd3790f61" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Sat Sep 12 19:17:15 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Sat Sep 12 23:08:06 2009 -0400" }, "message": "tracing: use macros to create internal ftrace entry ring buffer structures\n\nThe entries used by ftrace internal code (plugins) currently have their\nformats manually exported to userspace. That is, the format files in\ndebugfs/tracing/events/ftrace/*/format are currently created by hand.\nThis is a maintenance nightmare, and can easily become out of sync\nwith what is actually shown.\n\nThis patch uses the methodology of the TRACE_EVENT macros to build\nthe structures so that their formats can be automated and this\nwill keep the structures in sync with what users can see.\n\nThis patch only changes the way the structures are created. Further\npatches will build off of this to automate the format files.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "558e6547e4b8a2b13608a24a9d3679802f91c4c7", "tree": "aa7eeeee57fbf93d2ff3811a362ffef19be17c29", "parents": [ "4818d80942b7c0021d213b7c5f1a14a832820a01" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Mon Aug 24 12:19:47 2009 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Sat Sep 12 22:28:38 2009 -0400" }, "message": "tracing/profile: fix profile_disable vs module_unload\n\nIf the correspoding module is unloaded before ftrace_profile_disable()\nis called, event-\u003eprofile_disable() won\u0027t be called, which can\ncause oops:\n\n # insmod trace-events-sample.ko\n # perf record -f -a -e sample:foo_bar sleep 3 \u0026\n # sleep 1\n # rmmod trace_events_sample\n # insmod trace-events-sample.ko\n OOPS!\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4A9214E3.2070807@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "b5130b1e7d3717d03ab1916b198bf0d49fa0a619", "tree": "67ee3282f6b6aa2e37864b938f67fd7e02b04394", "parents": [ "41dfba4367109b92d92ec6e059be6950497d932f" ], "author": { "name": "Carsten Emde", "email": "Carsten.Emde@osadl.org", "time": "Sun Sep 13 01:43:07 2009 +0200" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Sat Sep 12 21:45:17 2009 -0400" }, "message": "tracing: do not update tracing_max_latency when tracer is stopped\n\nThe state of the function pair tracing_stop()/tracing_start() is\ncorrectly considered when tracer data are updated. However, the global\nand externally accessible variable tracing_max_latency is always updated\n- even when tracing is stopped.\n\nThe update should only occur, if tracing was not stopped.\n\nSigned-off-by: Carsten Emde \u003cC.Emde@osadl.org\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "41dfba4367109b92d92ec6e059be6950497d932f", "tree": "ce9fe350c5b0e1c46586a45a088a4cf6913deb86", "parents": [ "fe63b94a430c0c8058de317f0a8ce921c69dbee4" ], "author": { "name": "Carsten Emde", "email": "Carsten.Emde@osadl.org", "time": "Sun Sep 13 01:41:31 2009 +0200" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Sat Sep 12 21:44:13 2009 -0400" }, "message": "tracing: remove unused local variables in tracer probe functions\n\nWhen the nsecs_to_usecs() conversion in probe_wakeup_sched_switch() and\ncheck_critical_timing() was moved to a later stage in order to avoid\nunnecessary computing, it was overlooked to remove the original\nvariables, assignments and comments..\n\nSigned-off-by: Carsten Emde \u003cC.Emde@osadl.org\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "689fd8b65d669b96d612ccc37d6fb87bf7ed6907", "tree": "d94d478c2f52440a048244a1fc7ee6beec25e88c", "parents": [ "489663644c35d50a20f58d468a7cbc705e6a29ce" ], "author": { "name": "jolsa@redhat.com", "email": "jolsa@redhat.com", "time": "Fri Sep 11 17:29:29 2009 +0200" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 11 15:20:18 2009 -0400" }, "message": "tracing: trace parser support for function and graph\n\nConvert the writing to \u0027set_graph_function\u0027, \u0027set_ftrace_filter\u0027\nand \u0027set_ftrace_notrace\u0027 to use the generic trace_parser\n\u0027trace_get_user\u0027 function.\n\nRemoved FTRACE_ITER_CONT flag, since it\u0027s not needed after this change.\n\nMinor fix in set_graph_function display - g_show function.\n\nSigned-off-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nLKML-Reference: \u003c1252682969-3366-4-git-send-email-jolsa@redhat.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "489663644c35d50a20f58d468a7cbc705e6a29ce", "tree": "2d5374e27493d43954d74bea3a895516b1be3f6d", "parents": [ "b63f39ea50330f836e301ddda21c6a93dcf0d6a3" ], "author": { "name": "jolsa@redhat.com", "email": "jolsa@redhat.com", "time": "Fri Sep 11 17:29:28 2009 +0200" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 11 14:47:11 2009 -0400" }, "message": "tracing: trace parser support for set_event\n\nConvert the parsing of the file \u0027set_event\u0027 to use the generic\ntrace_praser \u0027trace_get_user\u0027 function.\n\nSigned-off-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nLKML-Reference: \u003c1252682969-3366-3-git-send-email-jolsa@redhat.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "b63f39ea50330f836e301ddda21c6a93dcf0d6a3", "tree": "3fb5a88ca19da6417a52b83eff585b9413bfb9c9", "parents": [ "f81c972d27c36729e65d4a815e3d7b782a540bad" ], "author": { "name": "jolsa@redhat.com", "email": "jolsa@redhat.com", "time": "Fri Sep 11 17:29:27 2009 +0200" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 11 14:46:55 2009 -0400" }, "message": "tracing: create generic trace parser\n\nCreate a \"trace_parser\" that can parse the user space input for\nseparate words.\n\nstruct trace_parser is the descriptor.\n\nGeneric \"trace_get_user\" function that can be a helper to read multiple\nwords passed in by user space.\n\nSigned-off-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nLKML-Reference: \u003c1252682969-3366-2-git-send-email-jolsa@redhat.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "f81c972d27c36729e65d4a815e3d7b782a540bad", "tree": "cc3ad7478f09e47914ffa9b5b9d9c1a7b990c60b", "parents": [ "637e7e864103a7a68c1ce43ada27dfc25c0d113f" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri Sep 11 14:24:13 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 11 14:24:13 2009 -0400" }, "message": "tracing: consolidate code between trace_output.c and trace_function_graph.c\n\nBoth trace_output.c and trace_function_graph.c do basically the same\nthing to handle the printing of the latency-format. This patch moves\nthe code into one function that both can use.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "637e7e864103a7a68c1ce43ada27dfc25c0d113f", "tree": "7ef0eadf41d79b07bc19f62b1355f7c824d781fd", "parents": [ "48659d31195bb76d688e99dabd816c5472fb1656" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri Sep 11 13:55:35 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 11 13:55:35 2009 -0400" }, "message": "tracing: add lock depth to entries\n\nThis patch adds the lock depth of the big kernel lock to the generic\nentry header. This way we can see the depth of the lock and help\nin removing the BKL.\n\nExample:\n\n # _------\u003d\u003e CPU#\n # / _-----\u003d\u003e irqs-off\n # | / _----\u003d\u003e need-resched\n # || / _---\u003d\u003e hardirq/softirq\n # ||| / _--\u003d\u003e preempt-depth\n # |||| /_--\u003d\u003e lock-depth\n # |||||/ delay\n # cmd pid |||||| time | caller\n # \\ / |||||| \\ | /\n \u003cidle\u003e-0 2.N..3 5902255250us+: lock_acquire: read rcu_read_lock\n \u003cidle\u003e-0 2.N..3 5902255253us+: lock_release: rcu_read_lock\n \u003cidle\u003e-0 2dN..3 5902255257us+: lock_acquire: xtime_lock\n \u003cidle\u003e-0 2dN..4 5902255259us : lock_acquire: clocksource_lock\n \u003cidle\u003e-0 2dN..4 5902255261us+: lock_release: clocksource_lock\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "48659d31195bb76d688e99dabd816c5472fb1656", "tree": "9d7d7f9ac50a6de1be1bfe28a31ee13e369fc04b", "parents": [ "49ff590390a22c49e9063dcdec4cd5903127526b" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri Sep 11 11:36:23 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 11 11:36:23 2009 -0400" }, "message": "tracing: move tgid out of generic entry and into userstack\n\nThe userstack trace required the recording of the tgid entry.\nUnfortunately, it was added to the generic entry where it wasted\n4 bytes of every entry and was only used by one entry.\n\nThis patch moves it out of the generic field and moves it into the\nonly user (userstack_entry).\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "49ff590390a22c49e9063dcdec4cd5903127526b", "tree": "f30913673a9d89d2f67cdafeed03afe127511713", "parents": [ "fc06b8520b3bf9aaeb2e27debe6719c215bd4916" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri Sep 11 00:30:26 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 11 10:59:49 2009 -0400" }, "message": "tracing: add latency format to function_graph tracer\n\nWhile debugging something with the function_graph tracer, I found the\nneed to see the preempt count of the traces. Unfortunately, since\nthe function graph tracer has its own output formatting, it does not\nhonor the latency-format option.\n\nThis patch makes the function_graph tracer honor the latency-format\noption, but still keeps control of the output. But now we have the\nsame details that the latency-format supplies.\n\n # tracer: function_graph\n #\n # _-----\u003d\u003e irqs-off\n # / _----\u003d\u003e need-resched\n # | / _---\u003d\u003e hardirq/softirq\n # || / _--\u003d\u003e preempt-depth\n # ||| /\n # ||||\n # CPU|||| DURATION FUNCTION CALLS\n # | |||| | | | | | |\n 3) d..1 1.333 us | idle_cpu();\n 3) d.h1 | tick_check_idle() {\n 3) d.h1 0.550 us | tick_check_oneshot_broadcast();\n 3) d.h1 | tick_nohz_stop_idle() {\n 3) d.h1 | ktime_get() {\n 3) d.h1 | ktime_get_ts() {\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "197e2eabc90c203d1086916b7f66694ba5fbb937", "tree": "80734d0e96ac0f4ffc1bcac4198d537804dae037", "parents": [ "a5921c6c37d51ee2079ca3c69ea6f7b7384f5d87" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Thu Sep 10 09:34:19 2009 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Sep 09 23:54:11 2009 -0400" }, "message": "tracing: move PRED macros to trace_events_filter.c\n\nMove DEFINE_COMPARISON_PRED() and DEFINE_EQUALITY_PRED()\n to kernel/trace/trace_events_filter.c\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4AA8579B.4020706@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "a5921c6c37d51ee2079ca3c69ea6f7b7384f5d87", "tree": "f6ce2b8885f36a4aaac37aab1d370479513dcde6", "parents": [ "bd9cfca9cb71200dd82b320bba12540dc078f4e0" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Thu Sep 10 09:34:19 2009 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Sep 09 23:54:09 2009 -0400" }, "message": "tracing: remove stats from struct tracer\n\nRemove unused field @stats from struct tracer.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4AA8579B.4020706@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "bd9cfca9cb71200dd82b320bba12540dc078f4e0", "tree": "6a86f5982103623a007a0f99db5a42dc4c962348", "parents": [ "e0ab5f2daee1c7a6a387591bf37f0bad4e407112" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Thu Sep 10 09:34:19 2009 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Sep 09 23:54:07 2009 -0400" }, "message": "tracing: format clean ups\n\nFix white-space formatting.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4AA8579B.4020706@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "e0ab5f2daee1c7a6a387591bf37f0bad4e407112", "tree": "15daf95b939c6ed7e65e67b2acbbb740c2c145f9", "parents": [ "478142c39c8c2f5f63038e5f2224e6729406e587" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Thu Sep 10 09:34:19 2009 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Sep 09 23:54:06 2009 -0400" }, "message": "tracing: remove dead code\n\nRemoves unreachable code.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4AA8579B.4020706@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "478142c39c8c2f5f63038e5f2224e6729406e587", "tree": "222d3fc2fd8142299140d05206ada65b653e4a33", "parents": [ "d8eeb2d3b26d25c44c10f28430e2157a2d20bd1d" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Wed Sep 09 10:36:01 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Sep 09 23:54:04 2009 -0400" }, "message": "tracing: do not grab lock in wakeup latency function tracing\n\nThe wakeup tracer, when enabled, has its own function tracer.\nIt only traces the functions on the CPU where the task it is following\nis on. If a task is woken on one CPU but then migrates to another CPU\nbefore it wakes up, the latency tracer will then start tracing functions\non the other CPU.\n\nTo find which CPU the task is on, the wakeup function tracer performs\na task_cpu(wakeup_task). But to make sure the task does not disappear\nit grabs the wakeup_lock, which is also taken when the task wakes up.\nBy taking this lock, the function tracer does not need to worry about\nthe task being freed as it checks its cpu.\n\nJan Blunck found a problem with this approach on his 32 CPU box. When\na task is being traced by the wakeup tracer, all functions take this\nlock. That means that on all 32 CPUs, each function call is taking\nthis one lock to see if the task is on that CPU. This lock has just\nserialized all functions on all 32 CPUs. Needless to say, this caused\nmajor issues on that box. It would even lockup.\n\nThis patch changes the wakeup latency to insert a probe on the migrate task\ntracepoint. When a task changes its CPU that it will run on, the\nprobe will take note. Now the wakeup function tracer no longer needs\nto take the lock. It only compares the current CPU with a variable that\nholds the current CPU the task is on. We don\u0027t worry about races since\nit is OK to add or miss a function trace.\n\nReported-by: Jan Blunck \u003cjblunck@suse.de\u003e\nTested-by: Jan Blunck \u003cjblunck@suse.de\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "d8eeb2d3b26d25c44c10f28430e2157a2d20bd1d", "tree": "8308f1be1706a6605387289683e7b11dc40ecda6", "parents": [ "d28daf923ac5e4a0d7cecebae56f3e339189366b" ], "author": { "name": "Robert Richter", "email": "robert.richter@amd.com", "time": "Fri Jul 31 14:58:04 2009 +0200" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Sep 09 23:54:02 2009 -0400" }, "message": "ring-buffer: consolidate interface of rb_buffer_peek()\n\nrb_buffer_peek() operates with struct ring_buffer_per_cpu *cpu_buffer\nonly. Thus, instead of passing variables buffer and cpu it is better\nto use cpu_buffer directly. This also reduces the risk of races since\ncpu_buffer is not calculated twice.\n\nSigned-off-by: Robert Richter \u003crobert.richter@amd.com\u003e\nLKML-Reference: \u003c1249045084-3028-1-git-send-email-robert.richter@amd.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "d28daf923ac5e4a0d7cecebae56f3e339189366b", "tree": "8c8dff978e186bcd91ad60caa484480d3ed4ac11", "parents": [ "ed011b22ce567eabefa9ea571d3721c10ecd0553", "4a88d44ab17da5f8a238050d1b43dfd2e204bc2f" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Sep 06 06:27:40 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Sep 06 06:27:40 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": "ed011b22ce567eabefa9ea571d3721c10ecd0553", "tree": "c7aee6684613075c772388a99a9137014549434e", "parents": [ "85bac32c4a52c592b857f2c360cc5ec93a097d70", "e07cccf4046978df10f2e13fe2b99b2f9b3a65db" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Sep 06 06:11:38 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Sep 06 06:11:42 2009 +0200" }, "message": "Merge commit \u0027v2.6.31-rc9\u0027 into tracing/core\n\nMerge reason: move from -rc5 to -rc9.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "85bac32c4a52c592b857f2c360cc5ec93a097d70", "tree": "510e516dd5fa388cb9582a2f6b055f3725fbf2c1", "parents": [ "62f0b3eb5cb58931a02ee4e599e19c80a171e351" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri Sep 04 14:24:40 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 19:42:22 2009 -0400" }, "message": "ring-buffer: only enable ring_buffer_swap_cpu when needed\n\nSince the ability to swap the cpu buffers adds a small overhead to\nthe recording of a trace, we only want to add it when needed.\n\nOnly the irqsoff and preemptoff tracers use this feature, and both are\nnot recommended for production kernels. This patch disables its use\nwhen neither irqsoff nor preemptoff is configured.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "62f0b3eb5cb58931a02ee4e599e19c80a171e351", "tree": "344b3b8f55e6162f7fa08316aa6fde333b304c04", "parents": [ "e8165dbb03ed04d798163ee512074b9a9466a9c8" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri Sep 04 14:11:34 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 19:38:42 2009 -0400" }, "message": "ring-buffer: check for swapped buffers in start of committing\n\nBecause the irqsoff tracer can swap an internal CPU buffer, it is possible\nthat a swap happens between the start of the write and before the committing\nbit is set (the committing bit will disable swapping).\n\nThis patch adds a check for this and will fail the write if it detects it.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "e8165dbb03ed04d798163ee512074b9a9466a9c8", "tree": "a9e640253a8ce14bada6a83fe1d85ecd74968695", "parents": [ "659372d3e42a3e17a2e042d38a8bcdb94bfbe797" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Thu Sep 03 19:13:05 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 19:22:41 2009 -0400" }, "message": "tracing: report error in trace if we fail to swap latency buffer\n\nThe irqsoff tracer will fail to swap the cpu buffer with the max\nbuffer if it preempts a commit. Instead of ignoring this, this patch\nmakes the tracer report it if the last max latency failed due to preempting\na current commit.\n\nThe output of the latency tracer will look like this:\n\n # tracer: irqsoff\n #\n # irqsoff latency trace v1.1.5 on 2.6.31-rc5\n # --------------------------------------------------------------------\n # latency: 112 us, #1/1, CPU#1 | (M:preempt VP:0, KP:0, SP:0 HP:0 #P:4)\n # -----------------\n # | task: -4281 (uid:0 nice:0 policy:0 rt_prio:0)\n # -----------------\n # \u003d\u003e started at: save_args\n # \u003d\u003e ended at: __do_softirq\n #\n #\n # _------\u003d\u003e CPU#\n # / _-----\u003d\u003e irqs-off\n # | / _----\u003d\u003e need-resched\n # || / _---\u003d\u003e hardirq/softirq\n # ||| / _--\u003d\u003e preempt-depth\n # |||| /\n # ||||| delay\n # cmd pid ||||| time | caller\n # \\ / ||||| \\ | /\n bash-4281 1d.s6 265us : update_max_tr_single: Failed to swap buffers due to commit in progress\n\nNote the latency time and the functions that disabled the irqs or preemption\nwill still be listed.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "659372d3e42a3e17a2e042d38a8bcdb94bfbe797", "tree": "4c6195eb5e96569f902695f33babbea37e00bd41", "parents": [ "e77405ad80f53966524b5c31244e13fbbbecbd84" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Thu Sep 03 19:11:07 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 19:13:53 2009 -0400" }, "message": "tracing: add trace_array_printk for internal tracers to use\n\nThis patch adds a trace_array_printk to allow a tracer to use the\ntrace_printk on its own trace array.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "e77405ad80f53966524b5c31244e13fbbbecbd84", "tree": "65c05f9e1573e9958e52bb72655e00c8592aacd2", "parents": [ "f633903af2ceb0cec07d45e499a072b6593d0ed1" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Wed Sep 02 14:17:06 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 18:59:39 2009 -0400" }, "message": "tracing: pass around ring buffer instead of tracer\n\nThe latency tracers (irqsoff and wakeup) can swap trace buffers\non the fly. If an event is happening and has reserved data on one of\nthe buffers, and the latency tracer swaps the global buffer with the\nmax buffer, the result is that the event may commit the data to the\nwrong buffer.\n\nThis patch changes the API to the trace recording to be recieve the\nbuffer that was used to reserve a commit. Then this buffer can be passed\nin to the commit.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "f633903af2ceb0cec07d45e499a072b6593d0ed1", "tree": "9a484fa299142a00d0dbb5a97e1108031db96e70", "parents": [ "2f26ebd549b9ab55ac756b836ec759c11fe93f81" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri Sep 04 12:35:16 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 18:46:51 2009 -0400" }, "message": "tracing: make tracing_reset safe for external use\n\nReseting the trace buffer without first disabling the buffer and\nwaiting for any writers to complete, can corrupt the ring buffer.\n\nThis patch makes the external version of tracing_reset safe from\ncorruption by disabling the ring buffer and calling synchronize_sched.\n\nThis version can no longer be called from interrupt context. But all those\ncallers have been removed.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "2f26ebd549b9ab55ac756b836ec759c11fe93f81", "tree": "0f6fb154e2b5e9233a683b3267e5efe862a846f4", "parents": [ "76f0d07376388f32698ba51b6090a26b90c1342f" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue Sep 01 11:06:29 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 18:44:22 2009 -0400" }, "message": "tracing: use timestamp to determine start of latency traces\n\nCurrently the latency tracers reset the ring buffer. Unfortunately\nif a commit is in process (due to a trace event), this can corrupt\nthe ring buffer. When this happens, the ring buffer will detect\nthe corruption and then permanently disable the ring buffer.\n\nThe bug does not crash the system, but it does prevent further tracing\nafter the bug is hit.\n\nInstead of reseting the trace buffers, the timestamp of the start of\nthe trace is used instead. The buffers will still contain the previous\ndata, but the output will not count any data that is before the\ntimestamp of the trace.\n\nNote, this only affects the static trace output (trace) and not the\nruntime trace output (trace_pipe). The runtime trace output does not\nmake sense for the latency tracers anyway.\n\nReported-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\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": "76f0d07376388f32698ba51b6090a26b90c1342f", "tree": "ea3a2576e7d2ae85d610aa088cb05986a13f03b1", "parents": [ "621968cdb2563b667d6ecb484ba91ef4c3a797b3" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri Sep 04 12:12:39 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 12:12:39 2009 -0400" }, "message": "tracing: remove users of tracing_reset\n\nThe function tracing_reset is deprecated for outside use of trace.c.\n\nThe new function to reset the the buffers is tracing_reset_online_cpus.\n\nThe reason for this is that resetting the buffers while the event\ntrace points are active can corrupt the buffers, because they may\nbe writing at the time of reset. The tracing_reset_online_cpus disables\nwrites and waits for current writers to finish.\n\nThis patch replaces all users of tracing_reset except for the latency\ntracers. Those changes require more work and will be removed in the\nfollowing patches.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "621968cdb2563b667d6ecb484ba91ef4c3a797b3", "tree": "a4b8e3ba1f55d6b725b37a4e42c2f376d6150cdc", "parents": [ "b8de7bd168fa54d059b16d3057b2f8a32cc5bdc3" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri Sep 04 12:02:35 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 12:02:35 2009 -0400" }, "message": "tracing: disable buffers and synchronize_sched before resetting\n\nResetting the ring buffers while traces are happening can corrupt\nthe ring buffer and disable it (no kernel crash to worry about).\n\nThe safest thing to do is disable the ring buffers, call synchronize_sched()\nto wait for all current writers to finish and then reset the buffer.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "b8de7bd168fa54d059b16d3057b2f8a32cc5bdc3", "tree": "3455ec59050f7f6d466a8c08275567079914d1b1", "parents": [ "8248ac052dfd1eb41819fbc0ca5c7a1667e7e70c" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Mon Aug 31 22:32:27 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 11:52:24 2009 -0400" }, "message": "tracing: disable update max tracer while reading trace\n\nWhen reading the tracer from the trace file, updating the max latency\nmay corrupt the output. This patch disables the tracing of the max\nlatency while reading the trace file.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "8248ac052dfd1eb41819fbc0ca5c7a1667e7e70c", "tree": "d979964a23112b6266d26da19a572057e5060367", "parents": [ "077c5407cd3231cf13472623995f0dfdda510d62" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Wed Sep 02 12:27:41 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 11:48:12 2009 -0400" }, "message": "tracing: print out start and stop in latency traces\n\nDuring development of the tracer, we would copy information from\nthe live tracer to the max tracer with one memcpy. Since then we\nadded a generic ring buffer and we handle the copies differently now.\nUnfortunately, we never copied the critical section information, and\nwe lost the output:\n\n # \u003d\u003e started at: kmem_cache_alloc\n # \u003d\u003e ended at: kmem_cache_alloc\n\nThis patch adds back the critical start and end copying as well as\nremoves the unused \"trace_idx\" and \"overrun\" fields of the\ntrace_array_cpu structure.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "077c5407cd3231cf13472623995f0dfdda510d62", "tree": "843c729463363495f13333b2b55f3985ea75dfd8", "parents": [ "a1863c212b7517afc2b13e549552ac322fb44cab" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Thu Sep 03 19:53:46 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 11:46:25 2009 -0400" }, "message": "ring-buffer: disable all cpu buffers when one finds a problem\n\nCurrently the way RB_WARN_ON works, is to disable either the current\nCPU buffer or all CPU buffers, depending on whether a ring_buffer or\nring_buffer_per_cpu struct was passed into the macro.\n\nMost users of the RB_WARN_ON pass in the CPU buffer, so only the one\nCPU buffer gets disabled but the rest are still active. This may\nconfuse users even though a warning is sent to the console.\n\nThis patch changes the macro to disable the entire buffer even if\nthe CPU buffer is passed in.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "a1863c212b7517afc2b13e549552ac322fb44cab", "tree": "20ad746370b0d03950f23a349ebb07c913f99fd2", "parents": [ "dc892f7339af2d125478b800edb9081d6149665b" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Thu Sep 03 10:23:58 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 11:43:36 2009 -0400" }, "message": "ring-buffer: do not count discarded events\n\nThe latency tracers report the number of items in the trace buffer.\nThis uses the ring buffer data to calculate this. Because discarded\nevents are also counted, the numbers do not match the number of items\nthat are printed. The ring buffer also adds a \"padding\" item to the\nend of each buffer page which also gets counted as a discarded item.\n\nThis patch decrements the counter to the page entries on a discard.\nThis allows us to ignore discarded entries while reading the buffer.\n\nDecrementing the counter is still safe since it can only happen while\nthe committing flag is still set.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "dc892f7339af2d125478b800edb9081d6149665b", "tree": "3377439556b600c7bd3d53cbc0a893dd75bed634", "parents": [ "7e9391cfedce34eb9786bfa69d7d545dc93ef930" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Thu Sep 03 15:33:41 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 11:36:19 2009 -0400" }, "message": "ring-buffer: remove ring_buffer_event_discard\n\nThe function ring_buffer_event_discard can be used on any item in the\nring buffer, even after the item was committed. This function provides\nno safety nets and is very race prone.\n\nAn item may be safely removed from the ring buffer before it is committed\nwith the ring_buffer_discard_commit.\n\nSince there are currently no users of this function, and because this\nfunction is racey and error prone, this patch removes it altogether.\n\nNote, removing this function also allows the counters to ignore\nall discarded events (patches will follow).\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "7e9391cfedce34eb9786bfa69d7d545dc93ef930", "tree": "e3901037e9269cbf10bd2952835ebcc573e5741d", "parents": [ "1b959e18c4d6b4b981f887260b0f8e7939efa411" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Thu Sep 03 10:02:09 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 11:28:39 2009 -0400" }, "message": "ring-buffer: fix ring_buffer_read crossing pages\n\nWhen the ring buffer uses an iterator (static read mode, not on the\nfly reading), when it crosses a page boundery, it will skip the first\nentry on the next page. The reason is that the last entry of a page\nis usually padding if the page is not full. The padding will not be\nreturned to the user.\n\nThe problem arises on ring_buffer_read because it also increments the\niterator. Because both the read and peek use the same rb_iter_peek,\nthe rb_iter_peak will return the padding but also increment to the next\nitem. This is because the ring_buffer_peek will not incerment it\nitself.\n\nThe ring_buffer_read will increment it again and then call rb_iter_peek\nagain to get the next item. But that will be the second item, not the\nfirst one on the page.\n\nThe reason this never showed up before, is because the ftrace utility\nalways calls ring_buffer_peek first and only uses ring_buffer_read\nto increment to the next item. The ring_buffer_peek will always keep\nthe pointer to a valid item and not padding. This just hid the bug.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "1b959e18c4d6b4b981f887260b0f8e7939efa411", "tree": "3f7b9950cfe19742cfe04bc3feb11f7ad0a46e71", "parents": [ "98277991a99734f3a31d638afb47d4484ac73e43" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Thu Sep 03 10:12:13 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 11:25:27 2009 -0400" }, "message": "ring-buffer: remove unnecessary cpu_relax\n\nThe loops in the ring buffer that use cpu_relax are not dependent on\nother CPUs. They simply came across some padding in the ring buffer and\nare skipping over them. It is a normal loop and does not require a\ncpu_relax.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "98277991a99734f3a31d638afb47d4484ac73e43", "tree": "6688cb3c43562d6bd7b67961478ac337297064e5", "parents": [ "41b6a95d693319f804607b559893fbbd27498548" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Wed Sep 02 10:56:15 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 11:22:47 2009 -0400" }, "message": "ring-buffer: do not swap buffers during a commit\n\nIf a commit is taking place on a CPU ring buffer, do not allow it to\nbe swapped. Return -EBUSY when this is detected instead.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "41b6a95d693319f804607b559893fbbd27498548", "tree": "eafa22ab694eda7723cec115592a861867432a66", "parents": [ "8e254c1d183f0225ad21f9049641529e56cce4da" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Wed Sep 02 09:59:48 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 11:15:08 2009 -0400" }, "message": "ring-buffer: do not reset while in a commit\n\nThe callers of reset must ensure that no commit can be taking place\nat the time of the reset. If it does then we may corrupt the ring buffer.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "8e254c1d183f0225ad21f9049641529e56cce4da", "tree": "5b559726a38b60c6bc92b3c8667c676db1038701", "parents": [ "73222acf966792c7fda219724af963339be32e62" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Mon Aug 31 16:49:41 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 31 10:58:08 2009 +0200" }, "message": "tracing/filters: Defer pred allocation\n\ninit_preds() allocates about 5392 bytes of memory (on x86_32) for\na TRACE_EVENT. With my config, at system boot total memory occupied\nis:\n\n\t5392 * (642 + 15) \u003d\u003d 3459KB\n\n642 \u003d\u003d cat available_events | wc -l\n15 \u003d\u003d number of dirs in events/ftrace\n\nThat\u0027s quite a lot, so we\u0027d better defer memory allocation util\nit\u0027s needed, that\u0027s when filter is used.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nLKML-Reference: \u003c4A9B8EA5.6020700@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "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": "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": "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": "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": "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": "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": "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": "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": "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": "eda1e328556565e211b7450250e40d6de751563a", "tree": "a0d4d6c056f3c4452a9a7d0e4b9af52e7a2d089d", "parents": [ "f2d84b65b9778e8a35dd904f7d3993f0a60c9756" ], "author": { "name": "Jiri Olsa", "email": "jolsa@redhat.com", "time": "Tue Aug 11 17:29:04 2009 +0200" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Tue Aug 18 20:39:48 2009 -0400" }, "message": "tracing: handle broken names in ftrace filter\n\nIf one filter item (for set_ftrace_filter and set_ftrace_notrace) is being\nsetup by more than 1 consecutive writes (FTRACE_ITER_CONT flag), it won\u0027t\nbe handled corretly.\n\nI used following program to test/verify:\n\n[snip]\n#include \u003cstdio.h\u003e\n#include \u003csys/types.h\u003e\n#include \u003csys/stat.h\u003e\n#include \u003cfcntl.h\u003e\n#include \u003cstring.h\u003e\n\nint main(int argc, char **argv)\n{\n int fd, i;\n char *file \u003d argv[1];\n\n if (-1 \u003d\u003d (fd \u003d open(file, O_WRONLY))) {\n perror(\"open failed\");\n return -1;\n }\n\n for(i \u003d 0; i \u003c (argc - 2); i++) {\n int len \u003d strlen(argv[2+i]);\n int cnt, off \u003d 0;\n\n while(len) {\n cnt \u003d write(fd, argv[2+i] + off, len);\n len -\u003d cnt;\n off +\u003d cnt;\n }\n }\n\n close(fd);\n return 0;\n}\n[snip]\n\nbefore change:\nsh-4.0# echo \u003e ./set_ftrace_filter\nsh-4.0# /test ./set_ftrace_filter \"sys\" \"_open \"\nsh-4.0# cat ./set_ftrace_filter\n#### all functions enabled ####\nsh-4.0#\n\nafter change:\nsh-4.0# echo \u003e ./set_ftrace_notrace\nsh-4.0# test ./set_ftrace_notrace \"sys\" \"_open \"\nsh-4.0# cat ./set_ftrace_notrace\nsys_open\nsh-4.0#\n\nSigned-off-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nLKML-Reference: \u003c20090811152904.GA26065@jolsa.lab.eng.brq.redhat.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "f2d84b65b9778e8a35dd904f7d3993f0a60c9756", "tree": "472a349bcc647cdf99c55f832156492478734f99", "parents": [ "df4ecf1524c7793de3121b2d4e5fc6bcc0da3bfb" ], "author": { "name": "Zhaolei", "email": "zhaolei@cn.fujitsu.com", "time": "Fri Aug 07 18:55:48 2009 +0800" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Aug 18 02:07:04 2009 +0200" }, "message": "ftrace: Unify effect of writing to trace_options and option/*\n\n\"echo noglobal-clock \u003e trace_options\" can be used to change trace\nclock but \"echo 0 \u003e options/global-clock\" can\u0027t. The flag toggling\nwill be silently accepted without actually changing the clock callback.\n\nWe can fix it by using set_tracer_flags() in\ntrace_options_core_write().\n\nChangelog:\nv1-\u003ev2: Simplified switch() after Li Zefan \u003clizf@cn.fujitsu.com\u003e\u0027s\n suggestion\n\nSigned-off-by: Zhao Lei \u003czhaolei@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003csrostedt@redhat.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\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" } ], "next": "97d53202a5670a08b79c8ef2e4fff1c1ee21317c" }