tree 500f4d8a3be212ececa80ead44d9658c8b7a4ce1
parent c12920d19078eb8fd99560ec232a6e05c6ff1aa8
author Oleg Nesterov <oleg@tv-sign.ru> 1178703255 -0700
committer Linus Torvalds <torvalds@woody.linux-foundation.org> 1178739052 -0700

workqueues: shift kthread_bind() from CPU_UP_PREPARE to CPU_ONLINE

CPU_UP_PREPARE binds cwq->thread to the new CPU.  So CPU_UP_CANCELED tries to
wake up the task which is bound to the failed CPU.

With this patch we don't bind cwq->thread until CPU becomes online.  The first
wake_up() after kthread_create() is a bit special, make a simple helper for
that.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Gautham R Shenoy <ego@in.ibm.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>