tree e31dcdf36bbcfdd1c78546637d59faa963597bac
parent 7ee92255470daa0edb93866aec6e27534cd9a177
author KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> 1281399590 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1281411902 -0700

vmscan: avoid subtraction of unsigned types

'slab_reclaimable' and 'nr_pages' are unsigned.  Subtraction is unsafe
because negative results would be misinterpreted.

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Rik van Riel <riel@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>