Prev: [RFC][PATCH 0/7] low latency synchrounous lumpy reclaim
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From: KOSAKI Motohiro on 5 Aug 2010 02:20
When synchrounous lumy reclaim occur, page_list have gurantee to
don't have active page because now page activation in shrink_page_list()
always disable lumpy reclaim.

Then, This patch remove virtual dead code.

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro(a)jp.fujitsu.com>
---
mm/vmscan.c | 8 --------
1 files changed, 0 insertions(+), 8 deletions(-)

diff --git a/mm/vmscan.c b/mm/vmscan.c
index f7aabd2..f21dbeb 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1334,7 +1334,6 @@ shrink_inactive_list(unsigned long nr_to_scan, struct zone *zone,
unsigned long nr_scanned;
unsigned long nr_reclaimed = 0;
unsigned long nr_taken;
- unsigned long nr_active;
unsigned long nr_anon;
unsigned long nr_file;

@@ -1389,13 +1388,6 @@ shrink_inactive_list(unsigned long nr_to_scan, struct zone *zone,

/* Check if we should syncronously wait for writeback */
if (should_reclaim_stall(nr_taken, nr_reclaimed, priority, sc)) {
- /*
- * The attempt at page out may have made some
- * of the pages active, mark them inactive again.
- */
- nr_active = clear_active_flags(&page_list, NULL);
- count_vm_events(PGDEACTIVATE, nr_active);
-
set_lumpy_reclaim_mode(priority, sc, true);
nr_reclaimed += shrink_page_list(&page_list, sc);
}
--
1.6.5.2



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Prev: [RFC][PATCH 0/7] low latency synchrounous lumpy reclaim
Next: [PATCH 1/7] vmscan: raise the bar to PAGEOUT_IO_SYNC stalls