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| author | Johannes Weiner <hannes@cmpxchg.org> | 2014-10-09 15:28:17 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-10-09 22:25:57 -0400 |
| commit | 5705465174686d007473e017b76c4b64b44aa690 (patch) | |
| tree | 09d197b925802f7b2b7d96129046eb0d15da60dc /mm/oom_kill.c | |
| parent | 7c809968ffa92d41baaa9054e897436480179b20 (diff) | |
| download | linux-5705465174686d007473e017b76c4b64b44aa690.tar.gz linux-5705465174686d007473e017b76c4b64b44aa690.tar.bz2 linux-5705465174686d007473e017b76c4b64b44aa690.zip | |
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.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/mm/oom_kill.c b/mm/oom_kill.c index 1e11df8fa7ec..bbf405a3a18f 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); } |