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authorLinus Torvalds <torvalds@linux-foundation.org>2016-08-11 23:58:24 (GMT)
committerLinus Torvalds <torvalds@linux-foundation.org>2016-08-11 23:58:24 (GMT)
commit4b9eaf33d83d91430b7ca45d0ebf8241da489c92 (patch)
tree85ca3cf23a902ac53fecf8f9b6129c745af44d29 /mm/kasan
parentd3396e1e4ec4aa41ef563841e8ba511ae0589003 (diff)
parent5830169f47269f78f6624bd70165eb571270da82 (diff)
downloadlinux-4b9eaf33d83d91430b7ca45d0ebf8241da489c92.tar.xz
Merge branch 'akpm' (patches from Andrew)
Merge fixes from Andrew Morton: "7 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: mm/memory_hotplug.c: initialize per_cpu_nodestats for hotadded pgdats mm, oom: fix uninitialized ret in task_will_free_mem() kasan: remove the unnecessary WARN_ONCE from quarantine.c mm: memcontrol: fix memcg id ref counter on swap charge move mm: memcontrol: fix swap counter leak on swapout from offline cgroup proc, meminfo: use correct helpers for calculating LRU sizes in meminfo mm/hugetlb: fix incorrect hugepages count during mem hotplug
Diffstat (limited to 'mm/kasan')
-rw-r--r--mm/kasan/quarantine.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/mm/kasan/quarantine.c b/mm/kasan/quarantine.c
index b6728a3..baabaad 100644
--- a/mm/kasan/quarantine.c
+++ b/mm/kasan/quarantine.c
@@ -217,11 +217,8 @@ void quarantine_reduce(void)
new_quarantine_size = (READ_ONCE(totalram_pages) << PAGE_SHIFT) /
QUARANTINE_FRACTION;
percpu_quarantines = QUARANTINE_PERCPU_SIZE * num_online_cpus();
- if (WARN_ONCE(new_quarantine_size < percpu_quarantines,
- "Too little memory, disabling global KASAN quarantine.\n"))
- new_quarantine_size = 0;
- else
- new_quarantine_size -= percpu_quarantines;
+ new_quarantine_size = (new_quarantine_size < percpu_quarantines) ?
+ 0 : new_quarantine_size - percpu_quarantines;
WRITE_ONCE(quarantine_size, new_quarantine_size);
last = global_quarantine.head;