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| author | Hugh Dickins <hughd@google.com> | 2012-01-10 15:08:33 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-10 16:30:46 -0800 |
| commit | 043bcbe5ec51e0478ef2b44acef17193e01d7f70 (patch) | |
| tree | 4b93556acfdd790ea3e85ed60240134bd06c0d1b /mm/vmscan.c | |
| parent | faed836a2371a96901057f310e436a09eded94fd (diff) | |
| download | lwn-043bcbe5ec51e0478ef2b44acef17193e01d7f70.tar.gz lwn-043bcbe5ec51e0478ef2b44acef17193e01d7f70.zip | |
mm: test PageSwapBacked in lumpy reclaim
Lumpy reclaim does well to stop at a PageAnon when there's no swap, but
better is to stop at any PageSwapBacked, which includes shmem/tmpfs too.
Signed-off-by: Hugh Dickins <hughd@google.com>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Reviewed-by: 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/vmscan.c')
| -rw-r--r-- | mm/vmscan.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index b935e6f0d695..8a4e767fb8ac 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -1166,7 +1166,7 @@ static unsigned long isolate_lru_pages(unsigned long nr_to_scan, * anon page which don't already have a swap slot is * pointless. */ - if (nr_swap_pages <= 0 && PageAnon(cursor_page) && + if (nr_swap_pages <= 0 && PageSwapBacked(cursor_page) && !PageSwapCache(cursor_page)) break; |