mm: clarify COMPACTION Kconfig text
authorMichal Hocko <mhocko@suse.com>
Thu, 25 Aug 2016 22:17:05 +0000 (15:17 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Sat, 27 Aug 2016 00:39:35 +0000 (17:39 -0700)
commitb32eaf71db6085f2ba54cf3ddf688bfc858219d0
tree37b8cea65bfa8d21ab2283bb62d0d6554a002986
parenta5ff1b34e16c203397542d98c49c5c7783193946
mm: clarify COMPACTION Kconfig text

The current wording of the COMPACTION Kconfig help text doesn't
emphasise that disabling COMPACTION might cripple the page allocator
which relies on the compaction quite heavily for high order requests and
an unexpected OOM can happen with the lack of compaction.  Make sure we
are vocal about that.

Link: http://lkml.kernel.org/r/20160823091726.GK23577@dhcp22.suse.cz
Signed-off-by: Michal Hocko <mhocko@suse.com>
Cc: Markus Trippelsdorf <markus@trippelsdorf.de>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Joonsoo Kim <js1304@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/Kconfig