sched/fair: Use reweight_entity() for set_user_nice()

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Now that we directly change load_avg and propagate that change into
the sums, sys_nice() and co should do the same, otherwise its possible
to confuse load accounting when we migrate near the weight change.

Fixes-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
[ Added changelog, fixed the call condition. ]
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Link: http://lkml.kernel.org/r/20170517095045.GA8420@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>

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Vincent Guittot 2017-05-17 11:50:45 +02:00 • committed by Ingo Molnar

parent 840c5abca4

commit 9059393e4e

3 changed files with 54 additions and 33 deletions

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22

kernel/sched/core.c

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63

kernel/sched/fair.c

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2

kernel/sched/sched.h

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