The patch titled
memcg-implement-memory-thresholds-check-if-first-threshold-crossed
has been removed from the -mm tree. Its filename was
memcg-implement-memory-thresholds-check-if-first-threshold-crossed.patch
This patch was dropped because it was folded into memcg-implement-memory-thresholds.patch
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: memcg-implement-memory-thresholds-check-if-first-threshold-crossed
From: "Kirill A. Shutemov" <kirill@xxxxxxxxxxxxx>
There is a bug in memory thresholds code. We don't check if first
threshold (array index 0) was crossed down. This patch fixes it.
Signed-off-by: Kirill A. Shutemov <kirill@xxxxxxxxxxxxx>
Cc: Balbir Singh <balbir@xxxxxxxxxxxxxxxxxx>
Cc: Pavel Emelyanov <xemul@xxxxxxxxxx>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memcontrol.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN mm/memcontrol.c~memcg-implement-memory-thresholds-check-if-first-threshold-crossed mm/memcontrol.c
--- a/mm/memcontrol.c~memcg-implement-memory-thresholds-check-if-first-threshold-crossed
+++ a/mm/memcontrol.c
@@ -3315,7 +3315,7 @@ static void __mem_cgroup_threshold(struc
* If none of thresholds below usage is crossed, we read
* only one element of the array here.
*/
- for (; i > 0 && unlikely(t->entries[i].threshold > usage); i--)
+ for (; i >= 0 && unlikely(t->entries[i].threshold > usage); i--)
eventfd_signal(t->entries[i].eventfd, 1);
/* i = current_threshold + 1 */
_
Patches currently in -mm which might be from kirill@xxxxxxxxxxxxx are
cgroups-fix-contents-in-cgroups-documentation.patch
cgroup-implement-eventfd-based-generic-api-for-notifications.patch
memcg-extract-mem_group_usage-from-mem_cgroup_read.patch
memcg-rework-usage-of-stats-by-soft-limit.patch
memcg-implement-memory-thresholds.patch
memcg-implement-memory-thresholds-check-if-first-threshold-crossed.patch
memcg-typo-in-comment-to-mem_cgroup_print_oom_info.patch
memcg-update-threshold-and-softlimit-at-commit-v2.patch
memcg-share-event-counter-rather-than-duplicate-v2.patch
memcg-update-memcg_testtxt.patch
cgroups-fix-race-between-userspace-and-kernelspace.patch
cgroups-remove-events-before-destroying-subsystem-state-objects.patch
cgroups-add-simple-listener-of-cgroup-events-to-documentation.patch
cgroups-add-simple-listener-of-cgroup-events-to-documentation-fix.patch
memcg-update-memcg_testtxt-to-describe-memory-thresholds.patch
memcg-fix-typos-in-memcg_testtxt.patch
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