Subject: [merged] mm-zswap-avoid-unnecessary-page-scanning.patch removed from -mm tree
To: weijie.yang@xxxxxxxxxxx,bob.liu@xxxxxxxxxx,minchan@xxxxxxxxxx,sjenning@xxxxxxxxxxxxxxxxxx,mm-commits@xxxxxxxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Wed, 13 Nov 2013 12:38:52 -0800
The patch titled
Subject: mm/zswap: avoid unnecessary page scanning
has been removed from the -mm tree. Its filename was
mm-zswap-avoid-unnecessary-page-scanning.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Weijie Yang <weijie.yang@xxxxxxxxxxx>
Subject: mm/zswap: avoid unnecessary page scanning
Add SetPageReclaim() before __swap_writepage() so that page can be moved
to the tail of the inactive list, which can avoid unnecessary page
scanning as this page was reclaimed by swap subsystem before.
Signed-off-by: Weijie Yang <weijie.yang@xxxxxxxxxxx>
Reviewed-by: Bob Liu <bob.liu@xxxxxxxxxx>
Reviewed-by: Minchan Kim <minchan@xxxxxxxxxx>
Acked-by: Seth Jennings <sjenning@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/zswap.c | 3 +++
1 file changed, 3 insertions(+)
diff -puN mm/zswap.c~mm-zswap-avoid-unnecessary-page-scanning mm/zswap.c
--- a/mm/zswap.c~mm-zswap-avoid-unnecessary-page-scanning
+++ a/mm/zswap.c
@@ -556,6 +556,9 @@ static int zswap_writeback_entry(struct
SetPageUptodate(page);
}
+ /* move it to the tail of the inactive list after end_writeback */
+ SetPageReclaim(page);
+
/* start writeback */
__swap_writepage(page, &wbc, end_swap_bio_write);
page_cache_release(page);
_
Patches currently in -mm which might be from weijie.yang@xxxxxxxxxxx are
origin.patch
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