Quanyang Wang 167ebb193d time/sched_clock: Mark sched_clock_read_begin/retry() as notrace ...

commit 4cd2bb1298 upstream.

Since sched_clock_read_begin() and sched_clock_read_retry() are called
by notrace function sched_clock(), they shouldn't be traceable either,
or else ftrace_graph_caller will run into a dead loop on the path
as below (arm for instance):

  ftrace_graph_caller()
    prepare_ftrace_return()
      function_graph_enter()
        ftrace_push_return_trace()
          trace_clock_local()
            sched_clock()
              sched_clock_read_begin/retry()

Fixes: 1b86abc1c6 ("sched_clock: Expose struct clock_read_data")
Signed-off-by: Quanyang Wang <quanyang.wang@windriver.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20200929082027.16787-1-quanyang.wang@windriver.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2020-11-05 11:51:58 +01:00

..

alarmtimer.c

time: Delete repeated words in comments

2020-08-10 22:14:07 +02:00

clockevents.c

tick: Remove outgoing CPU from broadcast masks

2019-03-23 18:26:43 +01:00

clocksource.c

clocksource: Remove obsolete ifdef

2020-06-09 16:36:47 +02:00

hrtimer.c

treewide: Use fallthrough pseudo-keyword

2020-08-23 17:36:59 -05:00

itimer.c

time: Prevent undefined behaviour in timespec64_to_ns()

2020-11-05 11:51:57 +01:00

jiffies.c

timekeeping: Split jiffies seqlock

2020-03-21 16:00:23 +01:00

Kconfig

posix-cpu-timers: Provide mechanisms to defer timer handling to task_work

2020-08-06 16:50:59 +02:00

Makefile

ns: Introduce Time Namespace

2020-01-14 12:20:48 +01:00

namespace.c

nsproxy: support CLONE_NEWTIME with setns()

2020-07-08 11:14:22 +02:00

ntp_internal.h

ntp: Audit NTP parameters adjustment

2019-04-15 18:14:01 -04:00

ntp.c

ntp/y2038: Remove incorrect time_t truncation

2019-11-12 08:13:44 +01:00

posix-clock.c

posix-clocks: Rename the clock_get() callback to clock_get_timespec()

2020-01-14 12:20:49 +01:00

posix-cpu-timers.c

posix-cpu-timers: Provide mechanisms to defer timer handling to task_work

2020-08-06 16:50:59 +02:00

posix-stubs.c

posix-timers: Make clock_nanosleep() time namespace aware

2020-01-14 12:20:55 +01:00

posix-timers.c

treewide: Use fallthrough pseudo-keyword

2020-08-23 17:36:59 -05:00

posix-timers.h

posix-clocks: Introduce clock_get_ktime() callback

2020-01-14 12:20:51 +01:00

sched_clock.c

time/sched_clock: Mark sched_clock_read_begin/retry() as notrace

2020-11-05 11:51:58 +01:00

test_udelay.c

time/debug: Remove license boilerplate

2018-11-23 11:51:21 +01:00

tick-broadcast-hrtimer.c

tick: broadcast-hrtimer: Fix a race in bc_set_next

2019-09-27 14:45:55 +02:00

tick-broadcast.c

treewide: Use fallthrough pseudo-keyword

2020-08-23 17:36:59 -05:00

tick-common.c

timekeeping: Split jiffies seqlock

2020-03-21 16:00:23 +01:00

tick-internal.h

tick: Remove outgoing CPU from broadcast masks

2019-03-23 18:26:43 +01:00

tick-oneshot.c

hrtimers/tick/clockevents: Remove sloppy license references

2018-11-23 11:51:21 +01:00

tick-sched.c

tick/nohz: Narrow down noise while setting current task's tick dependency

2020-06-29 11:58:50 -07:00

tick-sched.h

tick/sched: Update tick_sched struct documentation

2019-03-24 20:29:32 +01:00

time.c

y2038: remove unused time32 interfaces

2020-02-21 11:22:15 -08:00

timeconst.bc

time: Add SPDX license identifiers

2018-11-23 11:51:20 +01:00

timeconv.c

time: Add SPDX license identifiers

2018-11-23 11:51:20 +01:00

timecounter.c

time: Remove license boilerplate

2018-11-23 11:51:21 +01:00

timekeeping_debug.c

timekeeping/debug: No need to check return value of debugfs_create functions

2019-01-29 20:08:41 +01:00

timekeeping_internal.h

timekeeping/vsyscall: Provide vdso_update_begin/end()

2020-08-06 10:57:30 +02:00

timekeeping.c

Merge tag 'timers-urgent-2020-08-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2020-08-14 14:26:08 -07:00

timekeeping.h

timekeeping: Split jiffies seqlock

2020-03-21 16:00:23 +01:00

timer_list.c

timer_list: Guard procfs specific code

2019-06-23 00:08:52 +02:00

timer.c

random32: make prandom_u32() output unpredictable

2020-10-29 10:12:07 +01:00

vsyscall.c

timekeeping/vsyscall: Provide vdso_update_begin/end()

2020-08-06 10:57:30 +02:00