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authorJohannes Weiner <hannes@cmpxchg.org>2017-05-03 23:51:57 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2017-05-04 00:52:07 +0200
commit047d72c30eedcb953222810f1e7dcaae663aa452 (patch)
tree7a95683d7cf2fdd558cc6e09a2b8d5a79a92528a /mm/vmscan.c
parentmm: fix check for reclaimable pages in PF_MEMALLOC reclaim throttling (diff)
downloadlinux-047d72c30eedcb953222810f1e7dcaae663aa452.tar.xz
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mm: remove seemingly spurious reclaimability check from laptop_mode gating
Commit 1d82de618ddd ("mm, vmscan: make kswapd reclaim in terms of nodes") allowed laptop_mode=1 to start writing not just when the priority drops to DEF_PRIORITY - 2 but also when the node is unreclaimable. That appears to be a spurious change in this patch as I doubt the series was tested with laptop_mode, and neither is that particular change mentioned in the changelog. Remove it, it's still recent. Link: http://lkml.kernel.org/r/20170228214007.5621-4-hannes@cmpxchg.org Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Hillf Danton <hillf.zj@alibaba-inc.com> Acked-by: Mel Gorman <mgorman@techsingularity.net> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Jia He <hejianet@gmail.com> 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.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 52832bedb2ed..014d0d181be0 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -3285,7 +3285,7 @@ static int balance_pgdat(pg_data_t *pgdat, int order, int classzone_idx)
* If we're getting trouble reclaiming, start doing writepage
* even in laptop mode.
*/
- if (sc.priority < DEF_PRIORITY - 2 || !pgdat_reclaimable(pgdat))
+ if (sc.priority < DEF_PRIORITY - 2)
sc.may_writepage = 1;
/* Call soft limit reclaim before calling shrink_node. */