btrfs: unexport extent_map_block_end()

The helper extent_map_block_end() is currently not used anywhere outside
extent_map.c, so move into from extent_map.h into extent_map.c. While at
it, also make the extent map pointer argument as const.

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c
index a6d8368ed0edd5784301ed40e5bed5e90ca6b60e..bced39dc0da86e1b6e698fc622a9c487499f58c1 100644 (file)
--- a/fs/btrfs/extent_map.c
+++ b/fs/btrfs/extent_map.c
@@ -182,6 +182,13 @@ static struct rb_node *__tree_search(struct rb_root *root, u64 offset,
        return NULL;
 }
 
+static inline u64 extent_map_block_end(const struct extent_map *em)
+{
+       if (em->block_start + em->block_len < em->block_start)
+               return (u64)-1;
+       return em->block_start + em->block_len;
+}
+
 /* Check to see if two extent_map structs are adjacent and safe to merge. */
 static int mergable_maps(struct extent_map *prev, struct extent_map *next)
 {

diff --git a/fs/btrfs/extent_map.h b/fs/btrfs/extent_map.h
index 35d27c756e08089f60ef77fcf35c385393dd58e8..d0328127f89c68ee66280e5c0c1721e87c137807 100644 (file)
--- a/fs/btrfs/extent_map.h
+++ b/fs/btrfs/extent_map.h
@@ -77,13 +77,6 @@ static inline u64 extent_map_end(struct extent_map *em)
        return em->start + em->len;
 }
 
-static inline u64 extent_map_block_end(struct extent_map *em)
-{
-       if (em->block_start + em->block_len < em->block_start)
-               return (u64)-1;
-       return em->block_start + em->block_len;
-}
-
 void extent_map_tree_init(struct extent_map_tree *tree);
 struct extent_map *lookup_extent_mapping(struct extent_map_tree *tree,
                                         u64 start, u64 len);