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(parent: 19298fb) | patch
itimers: Use quick sample function
authorThomas Gleixner <tglx@linutronix.de>
Wed, 21 Aug 2019 19:08:52 +0000 (21:08 +0200)
committerThomas Gleixner <tglx@linutronix.de>
Wed, 28 Aug 2019 09:50:26 +0000 (11:50 +0200)
commita34360d42434bbf28c0f375444c52c154ae3e6cf
tree0e45f45b48c0db9dfbe61d0d06e0c485c6a1718etree | snapshot
parent19298fbf453c90a6cf72288155f80c6f55e9139dcommit | diff
itimers: Use quick sample function

get_itimer() locks sighand lock and checks whether the timer is already
expired. If it is not expired then the thread group cputime accounting is
already enabled. Use the sampling function not the one which is meant for
starting a timer.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lkml.kernel.org/r/20190821192919.689713638@linutronix.de
kernel/time/itimer.c diff | blob | history
Domain: System / Kernel;