tree 138b24bceee828dc256bb81f2b592926be9f1515
parent 5be9361cdff17fc76fa0c3e262ead94158555f16
author Heiko Carstens <heiko.carstens@de.ibm.com> 1178703244 -0700
committer Linus Torvalds <torvalds@woody.linux-foundation.org> 1178739051 -0700

call cpu_chain with CPU_DOWN_FAILED if CPU_DOWN_PREPARE failed

This makes cpu hotplug symmetrical: if CPU_UP_PREPARE fails we get
CPU_UP_CANCELED, so we can undo what ever happened on PREPARE.  The same
should happen for CPU_DOWN_PREPARE.

[akpm@linux-foundation.org: fix for reduce-size-of-task_struct-on-64-bit-machines]
Cc: Srivatsa Vaddagiri <vatsa@in.ibm.com>
Cc: Gautham Shenoy <ego@in.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>