[PATCH 6/6] btrfs: unconditionally provide function prototypes from free-space-tree.h

[Johannes Thumshirn <jthumshirn@suse.de>]

Currently the function prototypes of:
* search_free_space_info()
* convert_free_space_to_bitmaps()
* convert_free_space_to_extents()
* free_space_test_bit()
* __remove_from_free_space_tree()
* __add_to_free_space_tree()
are hidden behind CONFIG_BTRFS_FS_RUN_SANITY_TESTS.

If CONFIG_BTRFS_FS_RUN_SANITY_TESTS is not set, these functions are only
used within free-space-tree.c so technically there would be no need to provide
the function prototypes. But when CONFIG_BTRFS_FS_RUN_SANITY_TESTS they are
also used from tests/free-space-tree-tests.c which explains the need for
the function prototypes and the non-static declaration of the functions.

When compiling with -Wmissing-prototypes and
CONFIG_BTRFS_FS_RUN_SANITY_TESTS=n gcc emits a warning for each of these
functions, so remove the ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS guard to
make the compiler happy when running 'make W=1'.

Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
---
 fs/btrfs/free-space-tree.h | 2 --
 1 file changed, 2 deletions(-)

diff --git a/fs/btrfs/free-space-tree.h b/fs/btrfs/free-space-tree.h
index 3133651d7d70..0f4db2ad68c8 100644
--- a/fs/btrfs/free-space-tree.h
+++ b/fs/btrfs/free-space-tree.h
@@ -27,7 +27,6 @@ int add_to_free_space_tree(struct btrfs_trans_handle *trans,
 int remove_from_free_space_tree(struct btrfs_trans_handle *trans,
 				u64 start, u64 size);
 
-#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
 struct btrfs_free_space_info *
 search_free_space_info(struct btrfs_trans_handle *trans,
 		       struct btrfs_fs_info *fs_info,
@@ -47,6 +46,5 @@ int convert_free_space_to_extents(struct btrfs_trans_handle *trans,
 				  struct btrfs_path *path);
 int free_space_test_bit(struct btrfs_block_group_cache *block_group,
 			struct btrfs_path *path, u64 offset);
-#endif
 
 #endif
-- 
2.16.4