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authorWu Fengguang <fengguang.wu@intel.com>2009-06-16 15:32:29 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-16 19:47:39 -0700
commit6e08a369ee10b361ac1cdcdf4fabd420fd08beb3 (patch)
tree9dbf870cad025b64781d9051b6680a8a23927e5a /include/linux/mmzone.h
parent56e49d218890f49b0057710a4b6fef31f5ffbfec (diff)
vmscan: cleanup the scan batching code
The vmscan batching logic is twisting. Move it into a standalone function nr_scan_try_batch() and document it. No behavior change. Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> Acked-by: Rik van Riel <riel@redhat.com> Cc: Nick Piggin <npiggin@suse.de> Cc: Christoph Lameter <cl@linux-foundation.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/mmzone.h')
-rw-r--r--include/linux/mmzone.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index dd8487f0442..db976b9f879 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -334,9 +334,9 @@ struct zone {
/* Fields commonly accessed by the page reclaim scanner */
spinlock_t lru_lock;
- struct {
+ struct zone_lru {
struct list_head list;
- unsigned long nr_scan;
+ unsigned long nr_saved_scan; /* accumulated for batching */
} lru[NR_LRU_LISTS];
struct zone_reclaim_stat reclaim_stat;