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authorIngo Molnar <mingo@kernel.org>2012-09-13 17:18:38 +0200
committerIngo Molnar <mingo@kernel.org>2012-09-13 17:18:38 +0200
commit4553f0b90e1fd93b95a97918804528d4039201fc (patch)
treee17524a262d3e0708479ad35edb706c3e1af5415 /fs/btrfs/compression.c
parentbe267be8b191d5fac9f65a29e047470f364315eb (diff)
parent7ece55a4a3a04abe37118b1d4fb0b702eeb1de4c (diff)
Merge branch 'core/rcu' into perf/core
Steve Rostedt asked for the merge of a single commit, into both the RCU and the perf/tracing tree: | Josh made a change to the tracing code that affects both the | work Paul McKenney and I are currently doing. At the last | Kernel Summit back in August, Linus said when such a case | exists, it is best to make a separate branch based off of his | tree and place the change there. This way, the repositories | that need to share the change can both pull them in and the | SHA1 will match for both. Whichever branch is pulled in first | by Linus will also pull in the necessary change for the other | branch as well. Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'fs/btrfs/compression.c')
-rw-r--r--fs/btrfs/compression.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c
index 86eff48dab7..43d1c5a3a03 100644
--- a/fs/btrfs/compression.c
+++ b/fs/btrfs/compression.c
@@ -818,6 +818,7 @@ static void free_workspace(int type, struct list_head *workspace)
btrfs_compress_op[idx]->free_workspace(workspace);
atomic_dec(alloc_workspace);
wake:
+ smp_mb();
if (waitqueue_active(workspace_wait))
wake_up(workspace_wait);
}