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-rw-r--r--fs/btrfs/extent_map.c18
1 files changed, 11 insertions, 7 deletions
diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c
index bd6229fb2b6f..4a8e02f7b6c7 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
@@ -574,12 +577,13 @@ static noinline int merge_extent_mapping(struct extent_map_tree *em_tree,
}
/**
- * btrfs_add_extent_mapping - add extent mapping into em_tree
- * @fs_info - used for tracepoint
- * @em_tree - the extent tree into which we want to insert the extent mapping
- * @em_in - extent we are inserting
- * @start - start of the logical range btrfs_get_extent() is requesting
- * @len - length of the logical range btrfs_get_extent() is requesting
+ * Add extent mapping into em_tree
+ *
+ * @fs_info: the filesystem
+ * @em_tree: extent tree into which we want to insert the extent mapping
+ * @em_in: extent we are inserting
+ * @start: start of the logical range btrfs_get_extent() is requesting
+ * @len: length of the logical range btrfs_get_extent() is requesting
*
* Note that @em_in's range may be different from [start, start+len),
* but they must be overlapped.