diff mbox series

[v3,09/14] btrfs: Document btrfs_check_shared parameters

Message ID 20210122095805.620458-10-nborisov@suse.com (mailing list archive)
State New, archived
Headers show
Series Make btrfs W=1 clean | expand

Commit Message

Nikolay Borisov Jan. 22, 2021, 9:58 a.m. UTC 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
---
 fs/btrfs/backref.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index ef71aba5bc15..bbe50affb554 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -1501,7 +1501,13 @@  int btrfs_find_all_roots(struct btrfs_trans_handle *trans,
 }
 
 /**
- * btrfs_check_shared - tell us whether an extent is shared
+ * Checks if an extent is shared or not
+ *
+ * @root:   root inode belongs to
+ * @inum:   inode number of the inode whose extent we are checking
+ * @bytenr: logical bytenr of the extent we are checking
+ * @roots:  list of roots this extent is shared among
+ * @tmp:    temporary list used for iteration
  *
  * btrfs_check_shared uses the backref walking code but will short
  * circuit as soon as it finds a root or inode that doesn't match the