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| author | Kirill Korotaev <dev@sw.ru> | 2006-06-27 02:54:32 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-27 17:32:44 -0700 |
| commit | efc30814a88bdbe2bfe4ac94de2eb089ad80bee3 (patch) | |
| tree | 1134d7ccda13c09cf426af0524c13633292eac5b /include/linux/sched.h | |
| parent | cc94abfcbc9fed0048365ce1fb8dc81353408bf8 (diff) | |
| download | lwn-efc30814a88bdbe2bfe4ac94de2eb089ad80bee3.tar.gz lwn-efc30814a88bdbe2bfe4ac94de2eb089ad80bee3.zip | |
[PATCH] sched: CPU hotplug race vs. set_cpus_allowed()
There is a race between set_cpus_allowed() and move_task_off_dead_cpu().
__migrate_task() doesn't report any err code, so task can be left on its
runqueue if its cpus_allowed mask changed so that dest_cpu is not longer a
possible target. Also, chaning cpus_allowed mask requires rq->lock being
held.
Signed-off-by: Kirill Korotaev <dev@openvz.org>
Acked-By: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/sched.h')
0 files changed, 0 insertions, 0 deletions