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authorIngo Molnar <mingo@kernel.org>2017-03-16 09:50:50 +0100
committerIngo Molnar <mingo@kernel.org>2017-03-16 09:50:50 +0100
commit2b95bd7d58d368fe5dcbe6f4e494847ea082d89d (patch)
tree48c38d792f31f2fe10b26b03bdf1b10a82ca03a4 /mm/percpu.c
parentffa86c2f1a8862cf58c873f6f14d4b2c3250fb48 (diff)
parent69eea5a4ab9c705496e912b55a9d312325de19e6 (diff)
downloadlinux-2b95bd7d58d368fe5dcbe6f4e494847ea082d89d.tar.gz
linux-2b95bd7d58d368fe5dcbe6f4e494847ea082d89d.tar.xz
Merge branch 'linus' into perf/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'mm/percpu.c')
-rw-r--r--mm/percpu.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/mm/percpu.c b/mm/percpu.c
index 5696039b5c07..60a6488e9e6d 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -1011,8 +1011,11 @@ area_found:
mutex_unlock(&pcpu_alloc_mutex);
}
- if (chunk != pcpu_reserved_chunk)
+ if (chunk != pcpu_reserved_chunk) {
+ spin_lock_irqsave(&pcpu_lock, flags);
pcpu_nr_empty_pop_pages -= occ_pages;
+ spin_unlock_irqrestore(&pcpu_lock, flags);
+ }
if (pcpu_nr_empty_pop_pages < PCPU_EMPTY_POP_PAGES_LOW)
pcpu_schedule_balance_work();