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authorMinchan Kim <minchan.kim@gmail.com>2011-10-31 17:06:47 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-10-31 17:30:44 -0700
commit4356f21d09283dc6d39a6f7287a65ddab61e2808 (patch)
tree34822a1662ea83291455834556a4fb5bf98ecd72 /mm/compaction.c
parentb9e84ac1536d35aee03b2601f19694949f0bd506 (diff)
downloadop-kernel-dev-4356f21d09283dc6d39a6f7287a65ddab61e2808.zip
op-kernel-dev-4356f21d09283dc6d39a6f7287a65ddab61e2808.tar.gz
mm: change isolate mode from #define to bitwise type
Change ISOLATE_XXX macro with bitwise isolate_mode_t type. Normally, macro isn't recommended as it's type-unsafe and making debugging harder as symbol cannot be passed throught to the debugger. Quote from Johannes " Hmm, it would probably be cleaner to fully convert the isolation mode into independent flags. INACTIVE, ACTIVE, BOTH is currently a tri-state among flags, which is a bit ugly." This patch moves isolate mode from swap.h to mmzone.h by memcontrol.h Signed-off-by: Minchan Kim <minchan.kim@gmail.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Rik van Riel <riel@redhat.com> Cc: Michal Hocko <mhocko@suse.cz> Cc: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/compaction.c')
-rw-r--r--mm/compaction.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/compaction.c b/mm/compaction.c
index b2977a5..47f717f 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -349,7 +349,8 @@ static isolate_migrate_t isolate_migratepages(struct zone *zone,
}
/* Try isolate the page */
- if (__isolate_lru_page(page, ISOLATE_BOTH, 0) != 0)
+ if (__isolate_lru_page(page,
+ ISOLATE_ACTIVE|ISOLATE_INACTIVE, 0) != 0)
continue;
VM_BUG_ON(PageTransCompound(page));
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