The patch titled
Subject: vmscan: fix sane_reclaim helper for legacy memcg
has been added to the -mm tree. Its filename is
vmscan-fix-sane_reclaim-helper-for-legacy-memcg.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/vmscan-fix-sane_reclaim-helper-for-legacy-memcg.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/vmscan-fix-sane_reclaim-helper-for-legacy-memcg.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Vladimir Davydov <vdavydov@xxxxxxxxxxxxx>
Subject: vmscan: fix sane_reclaim helper for legacy memcg
The sane_reclaim() helper is supposed to return false for memcg reclaim if
the legacy hierarchy is used, because the latter lacks dirty throttling
mechanism, and so it did before it was accidentally broken by commit
33398cf2f360c ("memcg: export struct mem_cgroup"). Fix it.
Fixes: 33398cf2f360c ("memcg: export struct mem_cgroup")
Signed-off-by: Vladimir Davydov <vdavydov@xxxxxxxxxxxxx>
Acked-by: Tejun Heo <tj@xxxxxxxxxx>
Acked-by: Michal Hocko <mhocko@xxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/vmscan.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN mm/vmscan.c~vmscan-fix-sane_reclaim-helper-for-legacy-memcg mm/vmscan.c
--- a/mm/vmscan.c~vmscan-fix-sane_reclaim-helper-for-legacy-memcg
+++ a/mm/vmscan.c
@@ -175,7 +175,7 @@ static bool sane_reclaim(struct scan_con
if (!memcg)
return true;
#ifdef CONFIG_CGROUP_WRITEBACK
- if (memcg->css.cgroup)
+ if (cgroup_on_dfl(memcg->css.cgroup))
return true;
#endif
return false;
_
Patches currently in -mm which might be from vdavydov@xxxxxxxxxxxxx are
vmscan-fix-sane_reclaim-helper-for-legacy-memcg.patch
mm-make-optimistic-check-for-swapin-readahead-fix-2.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
