As add_extent_mapping is called from several functions, let's add the
lock annotation. The tree is going to be modified so it must be the
exclusive lock.
Signed-off-by: David Sterba <dsterba@xxxxxxxx>
---
fs/btrfs/extent_map.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c
index 9558d79faf1e..a73af4159495 100644
--- a/fs/btrfs/extent_map.c
+++ b/fs/btrfs/extent_map.c
@@ -384,6 +384,8 @@ int add_extent_mapping(struct extent_map_tree *tree,
{
int ret = 0;
+ lockdep_assert_held_exclusive(&tree->lock);
+
ret = tree_insert(&tree->map, em);
if (ret)
goto out;
--
2.21.0
