sched/core: Make sched_ttwu_pending() atomic in time

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Since all tasks on the wake_list are woken under a single rq->lock
avoid calling update_rq_clock() for each task.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

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Peter Zijlstra 2017-02-21 14:36:23 +01:00 • committed by Ingo Molnar

parent 7134b3e941

commit 77558e4d01

1 changed files with 3 additions and 1 deletions

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kernel/sched/core.c

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