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authorJohannes Weiner <hannes@cmpxchg.org>2014-10-09 15:28:17 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-10-09 22:25:57 -0400
commit5705465174686d007473e017b76c4b64b44aa690 (patch)
tree09d197b925802f7b2b7d96129046eb0d15da60dc /mm/oom_kill.c
parent7c809968ffa92d41baaa9054e897436480179b20 (diff)
downloadop-kernel-dev-5705465174686d007473e017b76c4b64b44aa690.zip
op-kernel-dev-5705465174686d007473e017b76c4b64b44aa690.tar.gz
mm: clean up zone flags
Page reclaim tests zone_is_reclaim_dirty(), but the site that actually sets this state does zone_set_flag(zone, ZONE_TAIL_LRU_DIRTY), sending the reader through layers indirection just to track down a simple bit. Remove all zone flag wrappers and just use bitops against zone->flags directly. It's just as readable and the lines are barely any longer. Also rename ZONE_TAIL_LRU_DIRTY to ZONE_DIRTY to match ZONE_WRITEBACK, and remove the zone_flags_t typedef. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: David Rientjes <rientjes@google.com> Acked-by: Mel Gorman <mgorman@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/oom_kill.c')
-rw-r--r--mm/oom_kill.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 1e11df8..bbf405a 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -565,7 +565,7 @@ bool oom_zonelist_trylock(struct zonelist *zonelist, gfp_t gfp_mask)
spin_lock(&zone_scan_lock);
for_each_zone_zonelist(zone, z, zonelist, gfp_zone(gfp_mask))
- if (zone_is_oom_locked(zone)) {
+ if (test_bit(ZONE_OOM_LOCKED, &zone->flags)) {
ret = false;
goto out;
}
@@ -575,7 +575,7 @@ bool oom_zonelist_trylock(struct zonelist *zonelist, gfp_t gfp_mask)
* call to oom_zonelist_trylock() doesn't succeed when it shouldn't.
*/
for_each_zone_zonelist(zone, z, zonelist, gfp_zone(gfp_mask))
- zone_set_flag(zone, ZONE_OOM_LOCKED);
+ set_bit(ZONE_OOM_LOCKED, &zone->flags);
out:
spin_unlock(&zone_scan_lock);
@@ -594,7 +594,7 @@ void oom_zonelist_unlock(struct zonelist *zonelist, gfp_t gfp_mask)
spin_lock(&zone_scan_lock);
for_each_zone_zonelist(zone, z, zonelist, gfp_zone(gfp_mask))
- zone_clear_flag(zone, ZONE_OOM_LOCKED);
+ clear_bit(ZONE_OOM_LOCKED, &zone->flags);
spin_unlock(&zone_scan_lock);
}
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