On 09/06/2013 01:16 PM, Weijie Yang wrote: > 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> > --- > mm/zswap.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/mm/zswap.c b/mm/zswap.c > index 1be7b90..cc40e6a 100644 > --- a/mm/zswap.c > +++ b/mm/zswap.c > @@ -556,6 +556,9 @@ static int zswap_writeback_entry(struct zbud_pool *pool, unsigned long handle) > 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); > -- Regards, -Bob -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>