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| author |   Vincent Guittot <vincent.guittot@linaro.org> | 2021-06-01 10:58:32 +0200 |
|---|---|---|
| committer |   Peter Zijlstra <peterz@infradead.org> | 2021-06-03 12:55:55 +0200 |
| commit | fcf6631f3736985ec89bdd76392d3c7bfb60119f (patch) | |
| tree | 22924383c5f369cfcd524254379cf6f86a7b6dc1 /arch/ia64/kernel | |
| parent | tick/nohz: Only check for RCU deferred wakeup on user/guest entry when needed (diff) | |
| download | linux-dev-fcf6631f3736985ec89bdd76392d3c7bfb60119f.tar.xz linux-dev-fcf6631f3736985ec89bdd76392d3c7bfb60119f.zip | |
sched/pelt: Ensure that *_sum is always synced with *_avg
Rounding in PELT calculation happening when entities are attached/detached
of a cfs_rq can result into situations where util/runnable_avg is not null
but util/runnable_sum is. This is normally not possible so we need to
ensure that util/runnable_sum stays synced with util/runnable_avg.
detach_entity_load_avg() is the last place where we don't sync
util/runnable_sum with util/runnbale_avg when moving some sched_entities
Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20210601085832.12626-1-vincent.guittot@linaro.org
Diffstat (limited to 'arch/ia64/kernel')
0 files changed, 0 insertions, 0 deletions