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-rw-r--r--fs/btrfs/btrfs_inode.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/btrfs/btrfs_inode.h b/fs/btrfs/btrfs_inode.h
index 634608d2a6d..9b9b15fd520 100644
--- a/fs/btrfs/btrfs_inode.h
+++ b/fs/btrfs/btrfs_inode.h
@@ -51,6 +51,9 @@ struct btrfs_inode {
/* held while logging the inode in tree-log.c */
struct mutex log_mutex;
+ /* held while doing delalloc reservations */
+ struct mutex delalloc_mutex;
+
/* used to order data wrt metadata */
struct btrfs_ordered_inode_tree ordered_tree;