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author | Oleg Nesterov <oleg@redhat.com> | 2009-06-18 03:27:45 +0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-19 00:03:54 +0400 |
commit | 371cbb387e33651b4c1326457116568ff01ac422 (patch) | |
tree | 4678d02d44fc9764f316e5d84e5d307cc14a0923 /ipc | |
parent | 63706172f332fd3f6e7458ebfb35fa6de9c21dc5 (diff) | |
download | linux-371cbb387e33651b4c1326457116568ff01ac422.tar.xz |
kthreads: simplify migration_thread() exit path
Now that kthread_stop() can be used even if the task has already exited,
we can kill the "wait_to_die:" loop in migration_thread(). But we must
pin rq->migration_thread after creation.
Actually, I don't think CPU_UP_CANCELED or CPU_DEAD should wait for
->migration_thread exit. Perhaps we can simplify this code a bit more.
migration_call() can set ->should_stop and forget about this thread. But
we need a new helper in kthred.c for that.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Pavel Emelyanov <xemul@openvz.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Vitaliy Gusev <vgusev@openvz.org
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'ipc')
0 files changed, 0 insertions, 0 deletions