[PATCH 5/8] ext4: fix documentation for ext4_ext_try_to_merge()

[Eric Biggers <ebiggers@kernel.org>]

From: Eric Biggers <ebiggers@google.com>

Don't mention the nonexistent return value, and mention both types of
merges that are attempted.

Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 fs/ext4/extents.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 6c3f8c0ca83b..b2dee02ed238 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -1827,13 +1827,14 @@ static void ext4_ext_try_to_merge_up(handle_t *handle,
 }
 
 /*
- * This function tries to merge the @ex extent to neighbours in the tree.
- * return 1 if merge left else 0.
+ * This function tries to merge the @ex extent to neighbours in the tree, then
+ * tries to collapse the extent tree into the inode.
  */
 static void ext4_ext_try_to_merge(handle_t *handle,
 				  struct inode *inode,
 				  struct ext4_ext_path *path,
-				  struct ext4_extent *ex) {
+				  struct ext4_extent *ex)
+{
 	struct ext4_extent_header *eh;
 	unsigned int depth;
 	int merge_done = 0;
-- 
2.24.1