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-rw-r--r--fs/btrfs/extent_map.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c
index bd6229fb2b6f..8bda6c89e23e 100644
--- a/fs/btrfs/extent_map.c
+++ b/fs/btrfs/extent_map.c
@@ -385,9 +385,12 @@ static void extent_map_device_clear_bits(struct extent_map *em, unsigned bits)
}
/**
- * add_extent_mapping - add new extent map to the extent tree
+ * Add new extent map to the extent tree
+ *
* @tree: tree to insert new map in
* @em: map to insert
+ * @modified: indicate whether the given @em should be added to the
+ * modified list, which indicates the extent needs to be logged
*
* Insert @em into @tree or perform a simple forward/backward merge with
* existing mappings. The extent_map struct passed in will be inserted