Jiri Olsa
ced39002f5
ftrace, perf: Add support to use function tracepoint in perf ...
Adding perf registration support for the ftrace function event,
so it is now possible to register it via perf interface.
The perf_event struct statically contains ftrace_ops as a handle
for function tracer. The function tracer is registered/unregistered
in open/close actions.
To be efficient, we enable/disable ftrace_ops each time the traced
process is scheduled in/out (via TRACE_REG_PERF_(ADD|DELL) handlers).
This way tracing is enabled only when the process is running.
Intentionally using this way instead of the event's hw state
PERF_HES_STOPPED, which would not disable the ftrace_ops.
It is now possible to use function trace within perf commands
like:
perf record -e ftrace:function ls
perf stat -e ftrace:function ls
Allowed only for root.
Link: http://lkml.kernel.org/r/1329317514-8131-6-git-send-email-jolsa@redhat.com
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-02-21 11:08:27 -05:00
module: struct module_ref should contains long fields
2012-01-13 09:32:14 +10:30
Merge branch 'perf/urgent' into perf/core
2012-01-31 13:02:37 +01:00
gcov: disable CONSTRUCTORS for UML
2011-07-26 16:49:45 -07:00
tracing/softirq: Move __raise_softirq_irqoff() out of header
2012-02-03 09:48:19 -05:00
PM / Hibernate: Fix s2disk regression related to freezing workqueues
2012-01-29 20:35:52 +01:00
sched/rt: Fix task stack corruption under __ARCH_WANT_INTERRUPTS_ON_CTXSW
2012-01-27 12:49:41 +01:00
Merge branch 'rcu/fixes-for-v3.2' into rcu/urgent
2012-01-16 09:41:18 -08:00
ftrace, perf: Add support to use function tracepoint in perf
2012-02-21 11:08:27 -05:00
Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-01-08 12:19:57 -08:00
kernel/async: remove redundant declaration.
2012-01-13 09:32:18 +10:30
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit
2012-01-17 16:41:31 -08:00
audit: remove AUDIT_SETUP_CONTEXT as it isn't used
2012-01-17 16:16:57 -05:00
audit_tree,rcu: Convert call_rcu(__put_tree) to kfree_rcu()
2011-07-20 14:10:11 -07:00
audit: allow interfield comparison in audit rules
2012-01-17 16:17:01 -05:00
kernel-doc: fix new warnings in auditsc.c
2012-01-23 08:44:53 -08:00
Revert "capabitlies: ns_capable can use the cap helpers rather than lsm call"
2012-01-17 10:19:41 -08:00
Merge branch 'for-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2012-01-09 12:59:24 -08:00
Merge branch 'for-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2012-01-09 12:59:24 -08:00
kernel: Fix files explicitly needing EXPORT_SYMBOL infrastructure
2011-10-31 19:30:05 -04:00
kernel/configs.c: include MODULE_*() when CONFIG_IKCONFIG_PROC=n
2011-07-25 20:57:15 -07:00
Merge branch 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2012-01-08 13:10:57 -08:00
cpu_pm: call notifiers during suspend
2011-09-23 12:05:29 +05:30
Merge branch 'for-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2012-01-09 12:59:24 -08:00
Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2011-11-06 19:44:47 -08:00
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
KVM: Steal time implementation
2011-07-14 12:59:14 +03:00
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
sched: Fix ancient race in do_exit()
2012-01-27 11:55:36 +01:00
Fix race in process_vm_rw_core
2012-02-02 12:55:17 -08:00
freezer: kill unused set_freezable_with_signal()
2011-11-23 09:28:17 -08:00
futex: Fix uninterruptible loop due to gate_area
2011-12-31 11:48:28 -08:00
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2011-11-28 08:43:52 -08:00
hung_task: fix false positive during vfork
2012-01-03 16:14:32 -08:00
kernel: fix two implicit header assumptions in irq_work.c
2011-10-31 09:20:12 -04:00
[S390] cputime: add sparse checking and cleanup
2011-12-15 14:56:19 +01:00
Merge remote-tracking branch 'tip/perf/core' into kvm-updates/3.3
2011-12-27 11:22:24 +02:00
sched: Isolate preempt counting in its own config option
2011-06-10 15:15:40 +02:00
kdump: crashk_res init check for /sys/kernel/kexec_crash_size
2012-01-12 20:13:11 -08:00
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
Merge branch 'pm-sleep' into pm-for-linus
2011-12-25 23:42:20 +01:00
kprobes: initialize before using a hlist
2012-01-23 08:38:48 -08:00
kernel: ksysfs.c is implicitly using stat.h
2011-10-31 09:20:13 -04:00
freezer: kill unused set_freezable_with_signal()
2011-11-23 09:28:17 -08:00
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-01-06 08:02:58 -08:00
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
PM: Make sysrq-o be available for CONFIG_PM unset
2012-01-14 00:33:03 +01:00
error: implicit declaration of function 'module_flags_taint'
2012-01-15 16:21:07 -08:00
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
panic: don't print redundant backtraces on oops
2012-01-12 20:13:11 -08:00
module_param: avoid bool abuse, add bint for special cases.
2012-01-13 09:32:17 +10:30
sysctl: add the kernel.ns_last_pid control
2012-01-12 20:13:11 -08:00
sysctl: add the kernel.ns_last_pid control
2012-01-12 20:13:11 -08:00
[S390] cputime: add sparse checking and cleanup
2011-12-15 14:56:19 +01:00
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
printk/tracing: Add console output tracing
2012-02-13 13:46:05 -05:00
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
Merge branch 'for-linus' of git://selinuxproject.org/~jmorris/linux-security
2012-01-14 18:36:33 -08:00
range: fix bogus misuse of module.h to get printk()
2011-10-31 09:20:11 -04:00
rcu: Deconfuse dynticks entry-exit tracing
2011-12-11 10:31:42 -08:00
rcu: Detect illegal rcu dereference in extended quiescent state
2011-12-11 10:31:30 -08:00
rcu: Augment rcu_batch_end tracing for idle and callback state
2011-12-11 10:32:22 -08:00
rcu: Apply ACCESS_ONCE() to rcu_boost() return value
2011-12-11 10:33:19 -08:00
rcu: Add missing __cpuinit annotation in rcutorture code
2012-01-16 09:44:05 -08:00
rcu: Augment rcu_batch_end tracing for idle and callback state
2011-12-11 10:32:22 -08:00
rcu: Keep invoking callbacks if CPU otherwise idle
2011-12-11 10:32:09 -08:00
rcu: Apply ACCESS_ONCE() to rcu_boost() return value
2011-12-11 10:33:19 -08:00
rcu: Track idleness independent of idle tasks
2011-12-11 10:31:24 -08:00
switch debugfs to umode_t
2012-01-03 22:54:56 -05:00
net: introduce res_counter_charge_nofail() for socket allocations
2012-01-22 15:08:46 -05:00
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
lockdep, rtmutex, bug: Show taint flags on error
2011-12-06 08:16:49 +01:00
rtmutex-tester: convert sysdev_class to a regular subsystem
2011-12-14 14:54:22 -08:00
Revert "rcu: Permit rt_mutex_unlock() with irqs disabled"
2011-12-11 10:33:18 -08:00
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
seccomp: audit abnormal end to a process due to seccomp
2012-01-17 16:16:55 -05:00
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
tracing: send_sigqueue() needs trace_signal_generate() too
2012-01-13 18:49:02 +01:00
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
tracing/softirq: Move __raise_softirq_irqoff() out of header
2012-02-03 09:48:19 -05:00
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2011-11-06 19:44:47 -08:00
c/r: prctl: add PR_SET_MM codes to set up mm_struct entries
2012-01-12 20:13:13 -08:00
Cross Memory Attach
2011-10-31 17:30:44 -07:00
x86: Panic on detection of stack overflow
2011-12-05 11:37:47 +01:00
binary_sysctl(): fix memory leak
2011-12-20 10:25:04 -08:00
xfs: remove subdirectories
2011-08-12 16:21:35 -05:00
Make TASKSTATS require root access
2011-09-19 17:04:37 -07:00
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
Merge branch 'core-debugobjects-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-01-06 07:53:34 -08:00
tracepoints/module: Fix disabling tracepoints with taint CRAP or OOT
2012-01-16 11:35:57 -05:00
[S390] cputime: add sparse checking and cleanup
2011-12-15 14:56:19 +01:00
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2011-11-06 19:44:47 -08:00
lockdep/waitqueues: Add better annotation
2011-12-21 10:07:39 +01:00
watchdog: Fix code/comments mismatches
2012-02-11 15:11:33 +01:00
workqueue: make alloc_workqueue() take printf fmt and args for name
2012-01-10 16:30:54 -08:00
ced39002f5