The patch titled
memcg: charged pages always have valid per-memcg zone info
has been removed from the -mm tree. Its filename was
memcg-charged-pages-always-have-valid-per-memcg-zone-info.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: memcg: charged pages always have valid per-memcg zone info
From: Johannes Weiner <hannes@xxxxxxxxxxx>
page_cgroup_zoneinfo() will never return NULL for a charged page, remove
the check for it in mem_cgroup_get_reclaim_stat_from_page().
Signed-off-by: Johannes Weiner <hannes@xxxxxxxxxxx>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Cc: Daisuke Nishimura <nishimura@xxxxxxxxxxxxxxxxx>
Cc: Balbir Singh <balbir@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Minchan Kim <minchan.kim@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memcontrol.c | 3 ---
1 file changed, 3 deletions(-)
diff -puN mm/memcontrol.c~memcg-charged-pages-always-have-valid-per-memcg-zone-info mm/memcontrol.c
--- a/mm/memcontrol.c~memcg-charged-pages-always-have-valid-per-memcg-zone-info
+++ a/mm/memcontrol.c
@@ -1043,9 +1043,6 @@ mem_cgroup_get_reclaim_stat_from_page(st
/* Ensure pc->mem_cgroup is visible after reading PCG_USED. */
smp_rmb();
mz = page_cgroup_zoneinfo(pc->mem_cgroup, page);
- if (!mz)
- return NULL;
-
return &mz->reclaim_stat;
}
_
Patches currently in -mm which might be from hannes@xxxxxxxxxxx are
origin.patch
mm-add-vm-counters-for-transparent-hugepages.patch
mm-batch-activate_page-to-reduce-lock-contention.patch
memcg-document-cgroup-dirty-memory-interfaces.patch
memcg-add-page_cgroup-flags-for-dirty-page-tracking.patch
memcg-add-dirty-page-accounting-infrastructure.patch
memcg-add-kernel-calls-for-memcg-dirty-page-stats.patch
memcg-add-dirty-limits-to-mem_cgroup.patch
memcg-add-cgroupfs-interface-to-memcg-dirty-limits.patch
memcg-add-dirty-limiting-routines.patch
memcg-check-memcg-dirty-limits-in-page-writeback.patch
memcg-make-background-writeback-memcg-aware.patch
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