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Diffstat (limited to 'fs/btrfs/locking.h')
-rw-r--r--fs/btrfs/locking.h7
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/btrfs/locking.h b/fs/btrfs/locking.h
index 35036b151bf5..af29df98ac14 100644
--- a/fs/btrfs/locking.h
+++ b/fs/btrfs/locking.h
@@ -189,7 +189,7 @@ static inline void btrfs_tree_read_lock(struct extent_buffer *eb)
}
void btrfs_tree_read_unlock(struct extent_buffer *eb);
-int btrfs_try_tree_read_lock(struct extent_buffer *eb);
+bool btrfs_try_tree_read_lock(struct extent_buffer *eb);
struct extent_buffer *btrfs_lock_root_node(struct btrfs_root *root);
struct extent_buffer *btrfs_read_lock_root_node(struct btrfs_root *root);
struct extent_buffer *btrfs_try_read_lock_root_node(struct btrfs_root *root);
@@ -199,8 +199,13 @@ static inline void btrfs_assert_tree_write_locked(struct extent_buffer *eb)
{
lockdep_assert_held_write(&eb->lock);
}
+static inline void btrfs_assert_tree_read_locked(struct extent_buffer *eb)
+{
+ lockdep_assert_held_read(&eb->lock);
+}
#else
static inline void btrfs_assert_tree_write_locked(struct extent_buffer *eb) { }
+static inline void btrfs_assert_tree_read_locked(struct extent_buffer *eb) { }
#endif
void btrfs_unlock_up_safe(struct btrfs_path *path, int level);