* [merged] mm-memcg-do-not-retry-precharge-charges.patch removed from -mm tree
@ 2017-01-25 22:04 akpm
0 siblings, 0 replies; only message in thread
From: akpm @ 2017-01-25 22:04 UTC (permalink / raw)
To: rientjes, hannes, mhocko, vdavydov.dev, mm-commits
The patch titled
Subject: mm, memcg: do not retry precharge charges
has been removed from the -mm tree. Its filename was
mm-memcg-do-not-retry-precharge-charges.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: David Rientjes <rientjes@google.com>
Subject: mm, memcg: do not retry precharge charges
When memory.move_charge_at_immigrate is enabled and precharges are
depleted during move, mem_cgroup_move_charge_pte_range() will attempt to
increase the size of the precharge.
Prevent precharges from ever looping by setting __GFP_NORETRY. This was
probably the intention of the GFP_KERNEL & ~__GFP_NORETRY, which is
pointless as written.
Fixes: 0029e19ebf84 ("mm: memcontrol: remove explicit OOM parameter in charge path")
Link: http://lkml.kernel.org/r/alpine.DEB.2.10.1701130208510.69402@chino.kir.corp.google.com
Signed-off-by: David Rientjes <rientjes@google.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/memcontrol.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff -puN mm/memcontrol.c~mm-memcg-do-not-retry-precharge-charges mm/memcontrol.c
--- a/mm/memcontrol.c~mm-memcg-do-not-retry-precharge-charges
+++ a/mm/memcontrol.c
@@ -4353,9 +4353,9 @@ static int mem_cgroup_do_precharge(unsig
return ret;
}
- /* Try charges one by one with reclaim */
+ /* Try charges one by one with reclaim, but do not retry */
while (count--) {
- ret = try_charge(mc.to, GFP_KERNEL & ~__GFP_NORETRY, 1);
+ ret = try_charge(mc.to, GFP_KERNEL | __GFP_NORETRY, 1);
if (ret)
return ret;
mc.precharge++;
_
Patches currently in -mm which might be from rientjes@google.com are
mm-compaction-add-vmstats-for-kcompactd-work.patch
mm-thp-add-new-defermadvise-defrag-option.patch
mm-page_alloc-warn_alloc-nodemask-is-null-when-cpusets-are-disabled.patch
mm-oom-header-nodemask-is-null-when-cpusets-are-disabled.patch
mm-oom-header-nodemask-is-null-when-cpusets-are-disabled-fix.patch
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2017-01-25 22:04 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-01-25 22:04 [merged] mm-memcg-do-not-retry-precharge-charges.patch removed from -mm tree akpm
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.