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-rw-r--r--fs/btrfs/btrfs_inode.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/btrfs/btrfs_inode.h b/fs/btrfs/btrfs_inode.h
index 5ba83894c8b..40b4e0c9cd0 100644
--- a/fs/btrfs/btrfs_inode.h
+++ b/fs/btrfs/btrfs_inode.h
@@ -30,6 +30,7 @@ struct btrfs_inode {
struct extent_map_tree extent_tree;
struct extent_io_tree io_tree;
struct extent_io_tree io_failure_tree;
+ struct mutex csum_mutex;
struct inode vfs_inode;
atomic_t ordered_writeback;