From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Wed, 9 May 2007 09:34:04 +0000 (-0700)
Subject: call cpu_chain with CPU_DOWN_FAILED if CPU_DOWN_PREPARE failed
X-Git-Tag: v2.6.22-rc1~236
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e7407dcc69e077ac34a527842db916abfbc458df;p=pandora-kernel.git

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>
---

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