memory_hotplug: check for walk_memory_resource() failure in online_pages()
commitfd8a4221ad76df700ff34875c9fbc42302aa4ba3
authorGeoff Levand <geoffrey.levand@am.sony.com>
Wed, 14 May 2008 23:05:50 +0000 (14 16:05 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 15 May 2008 02:11:14 +0000 (14 19:11 -0700)
tree4f37586cef40dca7cc8b630e85965a698e3aa1be
parent3fc957721d18c93662f7d4dab455b80f53dd2641
memory_hotplug: check for walk_memory_resource() failure in online_pages()

Add a check to online_pages() to test for failure of
walk_memory_resource().  This fixes a condition where a failure
of walk_memory_resource() can lead to online_pages() returning
success without the requested pages being onlined.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Cc: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Dave Hansen <haveblue@us.ibm.com>
Cc: Keith Mannthey <kmannth@us.ibm.com>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Paul Jackson <pj@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/memory_hotplug.c