mm: vmscan: convert lumpy_mode into a bitmask

Currently lumpy_mode is an enum and determines if lumpy reclaim is off,
syncronous or asyncronous.  In preparation for using compaction instead of
lumpy reclaim, this patch converts the flags into a bitmap.

Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/include/trace/events/vmscan.h b/include/trace/events/vmscan.h
index c255fcc587bf..be76429962ca 100644
--- a/include/trace/events/vmscan.h
+++ b/include/trace/events/vmscan.h
@@ -25,13 +25,13 @@
 
 #define trace_reclaim_flags(page, sync) ( \
         (page_is_file_cache(page) ? RECLAIM_WB_FILE : RECLAIM_WB_ANON) | \
-        (sync == LUMPY_MODE_SYNC ? RECLAIM_WB_SYNC : RECLAIM_WB_ASYNC)   \
+        (sync & LUMPY_MODE_SYNC ? RECLAIM_WB_SYNC : RECLAIM_WB_ASYNC)   \
         )
 
 #define trace_shrink_flags(file, sync) ( \
-        (sync == LUMPY_MODE_SYNC ? RECLAIM_WB_MIXED : \
+        (sync & LUMPY_MODE_SYNC ? RECLAIM_WB_MIXED : \
                         (file ? RECLAIM_WB_FILE : RECLAIM_WB_ANON)) |  \
-        (sync == LUMPY_MODE_SYNC ? RECLAIM_WB_SYNC : RECLAIM_WB_ASYNC) \
+        (sync & LUMPY_MODE_SYNC ? RECLAIM_WB_SYNC : RECLAIM_WB_ASYNC) \
         )
 
 TRACE_EVENT(mm_vmscan_kswapd_sleep,