diff options
author | Tianchen Ding <dtcccc@linux.alibaba.com> | 2024-03-06 05:21:33 +0300 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-05-02 17:35:34 +0300 |
commit | 2fb25655a12a270efd3b3efb07e8f0ec4690dc36 (patch) | |
tree | d22aac04d3e30e4f91a7086cdba8e4e8a7333fda /io_uring/uring_cmd.c | |
parent | 5154b1e37231a766f1d24fda9da6fd2b2f0d555f (diff) | |
download | linux-2fb25655a12a270efd3b3efb07e8f0ec4690dc36.tar.xz |
sched/eevdf: Fix miscalculation in reweight_entity() when se is not curr
[ Upstream commit afae8002b4fd3560c8f5f1567f3c3202c30a70fa ]
reweight_eevdf() only keeps V unchanged inside itself. When se !=
cfs_rq->curr, it would be dequeued from rb tree first. So that V is
changed and the result is wrong. Pass the original V to reweight_eevdf()
to fix this issue.
Fixes: eab03c23c2a1 ("sched/eevdf: Fix vruntime adjustment on reweight")
Signed-off-by: Tianchen Ding <dtcccc@linux.alibaba.com>
[peterz: flip if() condition for clarity]
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Abel Wu <wuyun.abel@bytedance.com>
Link: https://lkml.kernel.org/r/20240306022133.81008-3-dtcccc@linux.alibaba.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'io_uring/uring_cmd.c')
0 files changed, 0 insertions, 0 deletions