sched/fair: Use recent_used_cpu to test p->cpus_ptr

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[ Upstream commit ae2ad293d6 ]

When checking whether a recently used CPU can be a potential idle
candidate, recent_used_cpu should be used to test p->cpus_ptr as
p->recent_used_cpu is not equal to recent_used_cpu and candidate
decision is made based on recent_used_cpu here.

Fixes: 89aafd67f2 ("sched/fair: Use prev instead of new target as recent_used_cpu")
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Phil Auld <pauld@redhat.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Link: https://lore.kernel.org/r/20230620080747.359122-1-linmiaohe@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Miaohe Lin 2023-06-20 16:07:47 +08:00 • committed by Greg Kroah-Hartman

parent 04db1d8aa6

commit cf954dd718

1 changed files with 1 additions and 1 deletions

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kernel/sched/fair.c

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