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| author |   Wen Yang <wen.yang99@zte.com.cn> | 2018-02-05 11:18:41 +0800 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2018-02-06 10:20:34 +0100 |
| commit | e7ad203166fff89b1d8253faf68fbe6966bf7181 (patch) | |
| tree | 80a3b9f71dfac9f1a4d1d0ed7399e663e7c1b403 /kernel/utsname_sysctl.c | |
| parent | sched/rt: Up the root domain ref count when passing it around via IPIs (diff) | |
| download | linux-dev-e7ad203166fff89b1d8253faf68fbe6966bf7181.tar.xz linux-dev-e7ad203166fff89b1d8253faf68fbe6966bf7181.zip | |
sched/rt: Make update_curr_rt() more accurate
rq->clock_task may be updated between the two calls of
rq_clock_task() in update_curr_rt(). Calling rq_clock_task() only
once makes it more accurate and efficient, taking update_curr() as
reference.
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Jiang Biao <jiang.biao2@zte.com.cn>
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>
Cc: zhong.weidong@zte.com.cn
Link: http://lkml.kernel.org/r/1517800721-42092-1-git-send-email-wen.yang99@zte.com.cn
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/utsname_sysctl.c')
0 files changed, 0 insertions, 0 deletions