btrfs: rename functions to allocate and free extent maps

These functions are exported and don't have a 'btrfs_' prefix in their
names, which goes against coding style conventions. Rename them to have
such prefix, making it clear they are from btrfs and avoiding potential
collisions in the future with functions defined elsewhere outside btrfs.

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, 24 insertions, 24 deletions

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 9b4f70102d97..388c17f1facc 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -1153,7 +1153,7 @@ static void submit_one_async_extent(struct async_chunk *async_chunk,
 		ret = PTR_ERR(em);
 		goto out_free_reserve;
 	}
-	free_extent_map(em);
+	btrfs_free_extent_map(em);
 
 	ordered = btrfs_alloc_ordered_extent(inode, start, &file_extent,
 					     1 << BTRFS_ORDERED_COMPRESSED);
@@ -1218,15 +1218,15 @@ u64 btrfs_get_extent_allocation_hint(struct btrfs_inode *inode, u64 start,
 		 * block is also bogus then just don't worry about it.
 		 */
 		if (em->disk_bytenr >= EXTENT_MAP_LAST_BYTE) {
-			free_extent_map(em);
+			btrfs_free_extent_map(em);
 			em = search_extent_mapping(em_tree, 0, 0);
 			if (em && em->disk_bytenr < EXTENT_MAP_LAST_BYTE)
 				alloc_hint = btrfs_extent_map_block_start(em);
 			if (em)
-				free_extent_map(em);
+				btrfs_free_extent_map(em);
 		} else {
 			alloc_hint = btrfs_extent_map_block_start(em);
-			free_extent_map(em);
+			btrfs_free_extent_map(em);
 		}
 	}
 	read_unlock(&em_tree->lock);
@@ -1400,7 +1400,7 @@ static noinline int cow_file_range(struct btrfs_inode *inode,
 			ret = PTR_ERR(em);
 			goto out_reserve;
 		}
-		free_extent_map(em);
+		btrfs_free_extent_map(em);
 
 		ordered = btrfs_alloc_ordered_extent(inode, start, &file_extent,
 						     1 << BTRFS_ORDERED_REGULAR);
@@ -1978,7 +1978,7 @@ static int nocow_one_range(struct btrfs_inode *inode, struct folio *locked_folio
 			btrfs_unlock_extent(&inode->io_tree, file_pos, end, cached);
 			return PTR_ERR(em);
 		}
-		free_extent_map(em);
+		btrfs_free_extent_map(em);
 	}
 
 	ordered = btrfs_alloc_ordered_extent(inode, file_pos, &nocow_args->file_extent,
@@ -2687,7 +2687,7 @@ static int btrfs_find_new_delalloc_bytes(struct btrfs_inode *inode,
 					   EXTENT_DELALLOC_NEW, cached_state);
 next:
 		search_start = btrfs_extent_map_end(em);
-		free_extent_map(em);
+		btrfs_free_extent_map(em);
 		if (ret)
 			return ret;
 	}
@@ -5029,7 +5029,7 @@ int btrfs_cont_expand(struct btrfs_inode *inode, loff_t oldsize, loff_t size)
 			if (ret)
 				break;
 
-			hole_em = alloc_extent_map();
+			hole_em = btrfs_alloc_extent_map();
 			if (!hole_em) {
 				btrfs_drop_extent_map_range(inode, cur_offset,
 						    cur_offset + hole_size - 1,
@@ -5046,7 +5046,7 @@ int btrfs_cont_expand(struct btrfs_inode *inode, loff_t oldsize, loff_t size)
 			hole_em->generation = btrfs_get_fs_generation(fs_info);
 
 			ret = btrfs_replace_extent_map_range(inode, hole_em, true);
-			free_extent_map(hole_em);
+			btrfs_free_extent_map(hole_em);
 		} else {
 			ret = btrfs_inode_set_file_extent_range(inode,
 							cur_offset, hole_size);
@@ -5054,13 +5054,13 @@ int btrfs_cont_expand(struct btrfs_inode *inode, loff_t oldsize, loff_t size)
 				break;
 		}
 next:
-		free_extent_map(em);
+		btrfs_free_extent_map(em);
 		em = NULL;
 		cur_offset = last_byte;
 		if (cur_offset >= block_end)
 			break;
 	}
-	free_extent_map(em);
+	btrfs_free_extent_map(em);
 	btrfs_unlock_extent(io_tree, hole_start, block_end - 1, &cached_state);
 	return ret;
 }
@@ -6882,13 +6882,13 @@ struct extent_map *btrfs_get_extent(struct btrfs_inode *inode,
 
 	if (em) {
 		if (em->start > start || em->start + em->len <= start)
-			free_extent_map(em);
+			btrfs_free_extent_map(em);
 		else if (em->disk_bytenr == EXTENT_MAP_INLINE && folio)
-			free_extent_map(em);
+			btrfs_free_extent_map(em);
 		else
 			goto out;
 	}
-	em = alloc_extent_map();
+	em = btrfs_alloc_extent_map();
 	if (!em) {
 		ret = -ENOMEM;
 		goto out;
@@ -7042,7 +7042,7 @@ out:
 	trace_btrfs_get_extent(root, inode, em);
 
 	if (ret) {
-		free_extent_map(em);
+		btrfs_free_extent_map(em);
 		return ERR_PTR(ret);
 	}
 	return em;
@@ -7214,7 +7214,7 @@ struct extent_map *btrfs_create_io_em(struct btrfs_inode *inode, u64 start,
 		break;
 	}
 
-	em = alloc_extent_map();
+	em = btrfs_alloc_extent_map();
 	if (!em)
 		return ERR_PTR(-ENOMEM);
 
@@ -7231,11 +7231,11 @@ struct extent_map *btrfs_create_io_em(struct btrfs_inode *inode, u64 start,
 
 	ret = btrfs_replace_extent_map_range(inode, em, true);
 	if (ret) {
-		free_extent_map(em);
+		btrfs_free_extent_map(em);
 		return ERR_PTR(ret);
 	}
 
-	/* em got 2 refs now, callers needs to do free_extent_map once. */
+	/* em got 2 refs now, callers needs to do btrfs_free_extent_map once. */
 	return em;
 }
 
@@ -8890,7 +8890,7 @@ static int __btrfs_prealloc_file_range(struct inode *inode, int mode,
 			break;
 		}
 
-		em = alloc_extent_map();
+		em = btrfs_alloc_extent_map();
 		if (!em) {
 			btrfs_drop_extent_map_range(BTRFS_I(inode), cur_offset,
 					    cur_offset + ins.offset - 1, false);
@@ -8908,7 +8908,7 @@ static int __btrfs_prealloc_file_range(struct inode *inode, int mode,
 		em->generation = trans->transid;
 
 		ret = btrfs_replace_extent_map_range(BTRFS_I(inode), em, true);
-		free_extent_map(em);
+		btrfs_free_extent_map(em);
 next:
 		num_bytes -= ins.offset;
 		cur_offset += ins.offset;
@@ -9412,7 +9412,7 @@ ssize_t btrfs_encoded_read(struct kiocb *iocb, struct iov_iter *iter,
 		 * For inline extents we get everything we need out of the
 		 * extent item.
 		 */
-		free_extent_map(em);
+		btrfs_free_extent_map(em);
 		em = NULL;
 		ret = btrfs_encoded_read_inline(iocb, iter, start, lockend,
 						cached_state, extent_start,
@@ -9465,7 +9465,7 @@ ssize_t btrfs_encoded_read(struct kiocb *iocb, struct iov_iter *iter,
 		encoded->unencoded_len = count;
 		*disk_io_size = ALIGN(*disk_io_size, fs_info->sectorsize);
 	}
-	free_extent_map(em);
+	btrfs_free_extent_map(em);
 	em = NULL;
 
 	if (*disk_bytenr == EXTENT_MAP_HOLE) {
@@ -9481,7 +9481,7 @@ ssize_t btrfs_encoded_read(struct kiocb *iocb, struct iov_iter *iter,
 	}
 
 out_em:
-	free_extent_map(em);
+	btrfs_free_extent_map(em);
 out_unlock_extent:
 	/* Leave inode and extent locked if we need to do a read. */
 	if (!unlocked && ret != -EIOCBQUEUED)
@@ -9689,7 +9689,7 @@ ssize_t btrfs_do_encoded_write(struct kiocb *iocb, struct iov_iter *from,
 		ret = PTR_ERR(em);
 		goto out_free_reserved;
 	}
-	free_extent_map(em);
+	btrfs_free_extent_map(em);
 
 	ordered = btrfs_alloc_ordered_extent(inode, start, &file_extent,
 				       (1 << BTRFS_ORDERED_ENCODED) |