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>

1 files changed, 4 insertions, 4 deletions

diff --git a/include/trace/events/vmscan.h b/include/trace/events/vmscan.h
index 36851f7f13da..edc4b3d25a2d 100644
--- a/include/trace/events/vmscan.h
+++ b/include/trace/events/vmscan.h
@@ -266,7 +266,7 @@ DECLARE_EVENT_CLASS(mm_vmscan_lru_isolate_template,
                 unsigned long nr_lumpy_taken,
                 unsigned long nr_lumpy_dirty,
                 unsigned long nr_lumpy_failed,
-                int isolate_mode),
+                isolate_mode_t isolate_mode),
 
         TP_ARGS(order, nr_requested, nr_scanned, nr_taken, nr_lumpy_taken, nr_lumpy_dirty, nr_lumpy_failed, isolate_mode),
 
@@ -278,7 +278,7 @@ DECLARE_EVENT_CLASS(mm_vmscan_lru_isolate_template,
                 __field(unsigned long, nr_lumpy_taken)
                 __field(unsigned long, nr_lumpy_dirty)
                 __field(unsigned long, nr_lumpy_failed)
-                __field(int, isolate_mode)
+                __field(isolate_mode_t, isolate_mode)
         ),
 
         TP_fast_assign(
@@ -312,7 +312,7 @@ DEFINE_EVENT(mm_vmscan_lru_isolate_template, mm_vmscan_lru_isolate,
                 unsigned long nr_lumpy_taken,
                 unsigned long nr_lumpy_dirty,
                 unsigned long nr_lumpy_failed,
-                int isolate_mode),
+                isolate_mode_t isolate_mode),
 
         TP_ARGS(order, nr_requested, nr_scanned, nr_taken, nr_lumpy_taken, nr_lumpy_dirty, nr_lumpy_failed, isolate_mode)
 
@@ -327,7 +327,7 @@ DEFINE_EVENT(mm_vmscan_lru_isolate_template, mm_vmscan_memcg_isolate,
                 unsigned long nr_lumpy_taken,
                 unsigned long nr_lumpy_dirty,
                 unsigned long nr_lumpy_failed,
-                int isolate_mode),
+                isolate_mode_t isolate_mode),
 
         TP_ARGS(order, nr_requested, nr_scanned, nr_taken, nr_lumpy_taken, nr_lumpy_dirty, nr_lumpy_failed, isolate_mode)