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| author |   Jisheng Zhang <jszhang@marvell.com> | 2015-10-20 16:02:35 +0800 |
|---|---|---|
| committer |   Daniel Lezcano <daniel.lezcano@linaro.org> | 2015-10-27 01:33:41 +0100 |
| commit | b8725dab66f0b2d57affb33a7f6ca094d9f1f8dd (patch) | |
| tree | d779fcf6254908910c93f63f3d18d101559798fa /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | clocksource/drivers/pistachio: Prevent ftrace recursion (diff) | |
| download | linux-dev-b8725dab66f0b2d57affb33a7f6ca094d9f1f8dd.tar.xz linux-dev-b8725dab66f0b2d57affb33a7f6ca094d9f1f8dd.zip | |
clocksource/drivers/samsung_pwm_timer: Prevent ftrace recursion
Currently samsung_pwm_timer can be used as a scheduler clock. We properly
marked samsung_read_sched_clock() as notrace but we then call another
function samsung_clocksource_read() that _wasn't_ notrace.
Having a traceable function in the sched_clock() path leads to a recursion
within ftrace and a kernel crash.
Fix this by adding notrace attribute to the samsung_clocksource_read()
function.
Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions