From: Mika Penttilä mika.penttila@gmail.com
stable inclusion from stable-5.10.65 commit 718180c24675e02f090d0d7351ad022fea0c4cea bugzilla: 182361 https://gitee.com/openeuler/kernel/issues/I4EH3U
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ Upstream commit 1c6829cfd3d5124b125e6df41158665aea413b35 ]
Use the loop variable instead of the function argument to test the other SMT siblings for idle.
Fixes: ff7db0bf24db ("sched/numa: Prefer using an idle CPU as a migration target instead of comparing tasks") Signed-off-by: Mika Penttilä mika.penttila@gmail.com Signed-off-by: Peter Zijlstra (Intel) peterz@infradead.org Acked-by: Mel Gorman mgorman@techsingularity.net Acked-by: Pankaj Gupta pankaj.gupta@ionos.com Link: https://lkml.kernel.org/r/20210722063946.28951-1-mika.penttila@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Chen Jun chenjun102@huawei.com Acked-by: Weilong Chen chenweilong@huawei.com
Signed-off-by: Chen Jun chenjun102@huawei.com --- kernel/sched/fair.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 8c830dce4481..27641d5c6db2 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -1571,7 +1571,7 @@ static inline bool is_core_idle(int cpu) if (cpu == sibling) continue;
- if (!idle_cpu(cpu)) + if (!idle_cpu(sibling)) return false; } #endif