diff options
| author | Tianchen Ding <dtcccc@linux.alibaba.com> | 2024-03-06 10:21:32 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-05-02 16:32:49 +0200 |
| commit | dc21662b5b3430d405fea5bb0d30eda4e85a59af (patch) | |
| tree | c1806c65f4d0a3f743b2dccaaf10ee82508b8a83 | |
| parent | 73224a5d2180066c7fe05b4656647601ba08d588 (diff) | |
sched/eevdf: Always update V if se->on_rq when reweighting
[ Upstream commit 11b1b8bc2b98e21ddf47e08b56c21502c685b2c3 ]
reweight_eevdf() needs the latest V to do accurate calculation for new
ve and vd. So update V unconditionally when se is runnable.
Fixes: eab03c23c2a1 ("sched/eevdf: Fix vruntime adjustment on reweight")
Suggested-by: Abel Wu <wuyun.abel@bytedance.com>
Signed-off-by: Tianchen Ding <dtcccc@linux.alibaba.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Abel Wu <wuyun.abel@bytedance.com>
Tested-by: K Prateek Nayak <kprateek.nayak@amd.com>
Tested-by: Chen Yu <yu.c.chen@intel.com>
Link: https://lore.kernel.org/r/20240306022133.81008-2-dtcccc@linux.alibaba.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | kernel/sched/fair.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 69fe62126a28..71e7cf6f77f6 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -3740,9 +3740,8 @@ static void reweight_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, if (se->on_rq) { /* commit outstanding execution time */ - if (curr) - update_curr(cfs_rq); - else + update_curr(cfs_rq); + if (!curr) __dequeue_entity(cfs_rq, se); update_load_sub(&cfs_rq->load, se->load.weight); } |