mm: vmscan: remove reclaim_mode_t

There is little motiviation for reclaim_mode_t once RECLAIM_MODE_[A]SYNC
and lumpy reclaim have been removed.  This patch gets rid of
reclaim_mode_t as well and improves the documentation about what
reclaim/compaction is and when it is triggered.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Acked-by: Rik van Riel <riel@redhat.com>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Hugh Dickins <hughd@google.com>
Cc: Ying Han <yinghan@google.com>
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, 2 insertions, 2 deletions

diff --git a/include/trace/events/vmscan.h b/include/trace/events/vmscan.h
index 82f693395ac5..bab3b87e4064 100644
--- a/include/trace/events/vmscan.h
+++ b/include/trace/events/vmscan.h
@@ -25,12 +25,12 @@
                 {RECLAIM_WB_ASYNC,      "RECLAIM_WB_ASYNC"}     \
                 ) : "RECLAIM_WB_NONE"
 
-#define trace_reclaim_flags(page, sync) ( \
+#define trace_reclaim_flags(page) ( \
         (page_is_file_cache(page) ? RECLAIM_WB_FILE : RECLAIM_WB_ANON) | \
         (RECLAIM_WB_ASYNC) \
         )
 
-#define trace_shrink_flags(file, sync) \
+#define trace_shrink_flags(file) \
         ( \
                 (file ? RECLAIM_WB_FILE : RECLAIM_WB_ANON) | \
                 (RECLAIM_WB_ASYNC) \