Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux...

[firefly-linux-kernel-4.4.55.git] / fs / btrfs / ctree.h

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index b3dd55f52f713dc8be60fcd8e2a96512e07c2ca8..84c3b00f3de8eedf47ba3bec71939a5fba1f90a0 100644 (file)
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -1176,6 +1176,7 @@ struct btrfs_space_info {
        struct percpu_counter total_bytes_pinned;
 
        struct list_head list;
+       /* Protected by the spinlock 'lock'. */
        struct list_head ro_bgs;
 
        struct rw_semaphore groups_sem;