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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2026-10-29 07:49:07 -1000 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2026-10-29 07:49:07 -1000 |
| commit | d011f648a708b231f7ef28c18ff30c815b07fe56 (patch) | |
| tree | eb9ebe5f245eba4a999d7fd7b83914cff83afb21 /kernel | |
| parent | cb01c6914ed57a68b4f5d67f47208e24f9a45408 (diff) | |
| parent | 78ff77ded78f2d3d6040705a3ab5a83cc45275e3 (diff) | |
Merge tag 'kthread-fix-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks
Pull kthread fix from Frederic Weisbecker:
"Fix a bug where dynamic CPU isolation through cpuset isolated
partitions can move a kthread out of the housekeeping range.
The fix makes sure the fallback affinity is always a set of online
housekeeper"
* tag 'kthread-fix-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks:
kthread: Fall back when no preferred housekeeping CPU is online
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/kthread.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/kthread.c b/kernel/kthread.c index cc8cb5d3eab7..fdb8fb07f40b 100644 --- a/kernel/kthread.c +++ b/kernel/kthread.c @@ -343,7 +343,7 @@ static void kthread_fetch_affinity(struct kthread *kthread, struct cpumask *cpum } cpumask_and(cpumask, pref, housekeeping_cpumask(HK_TYPE_DOMAIN)); - if (cpumask_empty(cpumask)) + if (!cpumask_intersects(cpumask, cpu_online_mask)) cpumask_copy(cpumask, housekeeping_cpumask(HK_TYPE_DOMAIN)); } |