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authorKonstantin Khlebnikov <khlebnikov@openvz.org>2012-05-29 15:06:54 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-05-29 16:22:25 -0700
commitf3fd4a61928a5edf5b033a417e761b488b43e203 (patch)
treef56c5b6f4a4c732c9167e4cacb3e9c25ced0d000 /mm/compaction.c
parent014483bcccc5edbf861d89dc1a6f7cdc02f9f4c0 (diff)
downloadlinux-f3fd4a61928a5edf5b033a417e761b488b43e203.tar.gz
mm: remove lru type checks from __isolate_lru_page()
After patch "mm: forbid lumpy-reclaim in shrink_active_list()" we can completely remove anon/file and active/inactive lru type filters from __isolate_lru_page(), because isolation for 0-order reclaim always isolates pages from right lru list. And pages-isolation for lumpy shrink_inactive_list() or memory-compaction anyway allowed to isolate pages from all evictable lru lists. Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Hugh Dickins <hughd@google.com> Acked-by: Michal Hocko <mhocko@suse.cz> Cc: Glauber Costa <glommer@parallels.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Minchan Kim <minchan@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/compaction.c')
-rw-r--r--mm/compaction.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/compaction.c b/mm/compaction.c
index 840ee288e29..74e1b380383 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -226,7 +226,7 @@ isolate_migratepages_range(struct zone *zone, struct compact_control *cc,
unsigned long last_pageblock_nr = 0, pageblock_nr;
unsigned long nr_scanned = 0, nr_isolated = 0;
struct list_head *migratelist = &cc->migratepages;
- isolate_mode_t mode = ISOLATE_ACTIVE|ISOLATE_INACTIVE;
+ isolate_mode_t mode = 0;
/*
* Ensure that there are not too many pages isolated from the LRU
@@ -329,7 +329,7 @@ isolate_migratepages_range(struct zone *zone, struct compact_control *cc,
mode |= ISOLATE_ASYNC_MIGRATE;
/* Try isolate the page */
- if (__isolate_lru_page(page, mode, 0) != 0)
+ if (__isolate_lru_page(page, mode) != 0)
continue;
VM_BUG_ON(PageTransCompound(page));