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Merge tag 'fbdev-omap-dt-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba...
[firefly-linux-kernel-4.4.55.git]
/
mm
/
backing-dev.c
diff --git
a/mm/backing-dev.c
b/mm/backing-dev.c
index 09d9591b770806c5beed5a27b2cd37b29e68ce5c..1706cbbdf5f0381aaf81f21f6bc47b1133e2746b 100644
(file)
--- a/
mm/backing-dev.c
+++ b/
mm/backing-dev.c
@@
-557,7
+557,7
@@
void clear_bdi_congested(struct backing_dev_info *bdi, int sync)
bit = sync ? BDI_sync_congested : BDI_async_congested;
if (test_and_clear_bit(bit, &bdi->state))
atomic_dec(&nr_bdi_congested[sync]);
- smp_mb__after_
clear_bit
();
+ smp_mb__after_
atomic
();
if (waitqueue_active(wqh))
wake_up(wqh);
}