btrfs: rename remaining exported extent map functions

Rename all the exported functions from extent_map.h that don't have a
'btrfs_' prefix in their names, so that they are consistent with all the
other functions, to make it clear they are btrfs specific functions and
to avoid potential name collisions in the future with functions defined
elsewhere in the kernel.

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

1 files changed, 19 insertions, 19 deletions

diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c
index 458215cafbb4..042b8b2e8b52 100644
--- a/fs/btrfs/extent_map.c
+++ b/fs/btrfs/extent_map.c
@@ -13,7 +13,7 @@
 
 static struct kmem_cache *extent_map_cache;
 
-int __init extent_map_init(void)
+int __init btrfs_extent_map_init(void)
 {
 	extent_map_cache = kmem_cache_create("btrfs_extent_map",
 					     sizeof(struct extent_map), 0, 0, NULL);
@@ -22,7 +22,7 @@ int __init extent_map_init(void)
 	return 0;
 }
 
-void __cold extent_map_exit(void)
+void __cold btrfs_extent_map_exit(void)
 {
 	kmem_cache_destroy(extent_map_cache);
 }
@@ -31,7 +31,7 @@ void __cold extent_map_exit(void)
  * Initialize the extent tree @tree.  Should be called for each new inode or
  * other user of the extent_map interface.
  */
-void extent_map_tree_init(struct extent_map_tree *tree)
+void btrfs_extent_map_tree_init(struct extent_map_tree *tree)
 {
 	tree->root = RB_ROOT;
 	INIT_LIST_HEAD(&tree->modified_extents);
@@ -409,7 +409,7 @@ static void try_merge_map(struct btrfs_inode *inode, struct extent_map *em)
  * 	    -ENOENT  when the extent is not found in the tree
  * 	    -EUCLEAN if the found extent does not match the expected start
  */
-int unpin_extent_cache(struct btrfs_inode *inode, u64 start, u64 len, u64 gen)
+int btrfs_unpin_extent_cache(struct btrfs_inode *inode, u64 start, u64 len, u64 gen)
 {
 	struct btrfs_fs_info *fs_info = inode->root->fs_info;
 	struct extent_map_tree *tree = &inode->extent_tree;
@@ -417,7 +417,7 @@ int unpin_extent_cache(struct btrfs_inode *inode, u64 start, u64 len, u64 gen)
 	struct extent_map *em;
 
 	write_lock(&tree->lock);
-	em = lookup_extent_mapping(tree, start, len);
+	em = btrfs_lookup_extent_mapping(tree, start, len);
 
 	if (WARN_ON(!em)) {
 		btrfs_warn(fs_info,
@@ -449,7 +449,7 @@ out:
 
 }
 
-void clear_em_logging(struct btrfs_inode *inode, struct extent_map *em)
+void btrfs_clear_em_logging(struct btrfs_inode *inode, struct extent_map *em)
 {
 	lockdep_assert_held_write(&inode->extent_tree.lock);
 
@@ -546,8 +546,8 @@ __lookup_extent_mapping(struct extent_map_tree *tree,
  * intersect, so check the object returned carefully to make sure that no
  * additional lookups are needed.
  */
-struct extent_map *lookup_extent_mapping(struct extent_map_tree *tree,
-					 u64 start, u64 len)
+struct extent_map *btrfs_lookup_extent_mapping(struct extent_map_tree *tree,
+					       u64 start, u64 len)
 {
 	return __lookup_extent_mapping(tree, start, len, 1);
 }
@@ -564,8 +564,8 @@ struct extent_map *lookup_extent_mapping(struct extent_map_tree *tree,
  *
  * If one can't be found, any nearby extent may be returned
  */
-struct extent_map *search_extent_mapping(struct extent_map_tree *tree,
-					 u64 start, u64 len)
+struct extent_map *btrfs_search_extent_mapping(struct extent_map_tree *tree,
+					       u64 start, u64 len)
 {
 	return __lookup_extent_mapping(tree, start, len, 0);
 }
@@ -579,7 +579,7 @@ struct extent_map *search_extent_mapping(struct extent_map_tree *tree,
  * Remove @em from the extent tree of @inode.  No reference counts are dropped,
  * and no checks are done to see if the range is in use.
  */
-void remove_extent_mapping(struct btrfs_inode *inode, struct extent_map *em)
+void btrfs_remove_extent_mapping(struct btrfs_inode *inode, struct extent_map *em)
 {
 	struct extent_map_tree *tree = &inode->extent_tree;
 
@@ -716,7 +716,7 @@ int btrfs_add_extent_mapping(struct btrfs_inode *inode,
 	if (ret == -EEXIST) {
 		struct extent_map *existing;
 
-		existing = search_extent_mapping(&inode->extent_tree, start, len);
+		existing = btrfs_search_extent_mapping(&inode->extent_tree, start, len);
 
 		trace_btrfs_handle_em_exist(fs_info, existing, em, start, len);
 
@@ -772,7 +772,7 @@ static void drop_all_extent_maps_fast(struct btrfs_inode *inode)
 
 		em = rb_entry(node, struct extent_map, rb_node);
 		em->flags &= ~(EXTENT_FLAG_PINNED | EXTENT_FLAG_LOGGING);
-		remove_extent_mapping(inode, em);
+		btrfs_remove_extent_mapping(inode, em);
 		btrfs_free_extent_map(em);
 
 		if (cond_resched_rwlock_write(&tree->lock))
@@ -830,7 +830,7 @@ void btrfs_drop_extent_map_range(struct btrfs_inode *inode, u64 start, u64 end,
 	split2 = btrfs_alloc_extent_map();
 
 	write_lock(&em_tree->lock);
-	em = lookup_extent_mapping(em_tree, start, len);
+	em = btrfs_lookup_extent_mapping(em_tree, start, len);
 
 	while (em) {
 		/* extent_map_end() returns exclusive value (last byte + 1). */
@@ -965,7 +965,7 @@ remove_em:
 				ASSERT(!split);
 				btrfs_set_inode_full_sync(inode);
 			}
-			remove_extent_mapping(inode, em);
+			btrfs_remove_extent_mapping(inode, em);
 		}
 
 		/*
@@ -1033,8 +1033,8 @@ int btrfs_replace_extent_map_range(struct btrfs_inode *inode,
  *
  * This function is used when an ordered_extent needs to be split.
  */
-int split_extent_map(struct btrfs_inode *inode, u64 start, u64 len, u64 pre,
-		     u64 new_logical)
+int btrfs_split_extent_map(struct btrfs_inode *inode, u64 start, u64 len, u64 pre,
+			   u64 new_logical)
 {
 	struct extent_map_tree *em_tree = &inode->extent_tree;
 	struct extent_map *em;
@@ -1057,7 +1057,7 @@ int split_extent_map(struct btrfs_inode *inode, u64 start, u64 len, u64 pre,
 
 	btrfs_lock_extent(&inode->io_tree, start, start + len - 1, NULL);
 	write_lock(&em_tree->lock);
-	em = lookup_extent_mapping(em_tree, start, len);
+	em = btrfs_lookup_extent_mapping(em_tree, start, len);
 	if (!em) {
 		ret = -EIO;
 		goto out_unlock;
@@ -1168,7 +1168,7 @@ static long btrfs_scan_inode(struct btrfs_inode *inode, struct btrfs_em_shrink_c
 		if (!list_empty(&em->list) && em->generation >= cur_fs_gen)
 			btrfs_set_inode_full_sync(inode);
 
-		remove_extent_mapping(inode, em);
+		btrfs_remove_extent_mapping(inode, em);
 		trace_btrfs_extent_map_shrinker_remove_em(inode, em);
 		/* Drop the reference for the tree. */
 		btrfs_free_extent_map(em);