[PATCH 2/2] sched_clock: Disable seqlock lockdep usage in sched_clock

Stephen Boyd sboyd at codeaurora.org
Thu Jan 2 19:46:20 EST 2014


On 01/02/14 15:11, John Stultz wrote:
> Unforunately the seqlock lockdep enablmenet can't be used

s/Unforunately/Unfortunately/
s/enablmenet/enablement/

> in sched_clock, since the lockdep infrastructure eventually
> calls into sched_clock, which causes a deadlock.
>
> Thus, this patch changes all generic sched_clock usage
> to use the raw_* methods.
>
> Cc: Krzysztof Hałasa <khalasa at piap.pl>
> Cc: Uwe Kleine-König <u.kleine-koenig at pengutronix.de>
> Cc: Willy Tarreau <w at 1wt.eu>
> Cc: Ingo Molnar <mingo at kernel.org>,
> Cc: Peter Zijlstra <peterz at infradead.org>
> Cc: Stephen Boyd <sboyd at codeaurora.org>
> Cc: Linus Torvalds <torvalds at linux-foundation.org>
> Cc: linux-arm-kernel at lists.infradead.org
> Reported-by: Krzysztof Hałasa <khalasa at piap.pl>
> Signed-off-by: John Stultz <john.stultz at linaro.org>

Reviewed-by: Stephen Boyd <sboyd at codeaurora.org>

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