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btrfs: use EXPORT_FOR_TESTS for conditionally exported functions 

Several functions in BTRFS are only used inside the source file they are
declared if CONFIG_BTRFS_FS_RUN_SANITY_TESTS is not defined. However if
CONFIG_BTRFS_FS_RUN_SANITY_TESTS is defined these functions are shared
with the unit tests code.

Before the introduction of the EXPORT_FOR_TESTS macro, these functions
could not be declared as static and the compiler had a harder task when
optimizing and inlining them.

As we have EXPORT_FOR_TESTS now, use it where appropriate to support the
compiler.

Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Johannes Thumshirn 2018-11-19 10:38:17 +01:00 committed by David Sterba
parent f8f591df7d
commit ce9f967f31
4 changed files with 20 additions and 25 deletions
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13
fs/btrfs/extent_io.c
View File

@ -1556,7 +1556,8 @@ static noinline int lock_delalloc_pages(struct inode *inode,
*
* 1 is returned if we find something, 0 if nothing was in the tree
*/
static noinline_for_stack u64 find_lock_delalloc_range(struct inode *inode,
EXPORT_FOR_TESTS
noinline_for_stack u64 find_lock_delalloc_range(struct inode *inode,
struct extent_io_tree *tree,
struct page *locked_page, u64 *start,
u64 *end)
@ -1637,16 +1638,6 @@ out_failed:
return found;
}
#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
u64 btrfs_find_lock_delalloc_range(struct inode *inode,
struct extent_io_tree *tree,
struct page *locked_page, u64 *start,
u64 *end)
{
return find_lock_delalloc_range(inode, tree, locked_page, start, end);
}
#endif
static int __process_pages_contig(struct address_space *mapping,
struct page *locked_page,
pgoff_t start_index, pgoff_t end_index,

3
fs/btrfs/extent_io.h
View File

@ -522,8 +522,7 @@ int free_io_failure(struct extent_io_tree *failure_tree,
struct extent_io_tree *io_tree,
struct io_failure_record *rec);
#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
u64 btrfs_find_lock_delalloc_range(struct inode *inode,
struct extent_io_tree *tree,
u64 find_lock_delalloc_range(struct inode *inode, struct extent_io_tree *tree,
struct page *locked_page, u64 *start,
u64 *end);
#endif

11
fs/btrfs/free-space-tree.c
View File

@ -74,9 +74,9 @@ out:
return ret;
}
struct btrfs_free_space_info *
search_free_space_info(struct btrfs_trans_handle *trans,
struct btrfs_fs_info *fs_info,
EXPORT_FOR_TESTS
struct btrfs_free_space_info *search_free_space_info(
struct btrfs_trans_handle *trans, struct btrfs_fs_info *fs_info,
struct btrfs_block_group_cache *block_group,
struct btrfs_path *path, int cow)
{
@ -176,6 +176,7 @@ static void le_bitmap_set(unsigned long *map, unsigned int start, int len)
}
}
EXPORT_FOR_TESTS
int convert_free_space_to_bitmaps(struct btrfs_trans_handle *trans,
struct btrfs_block_group_cache *block_group,
struct btrfs_path *path)
@ -315,6 +316,7 @@ out:
return ret;
}
EXPORT_FOR_TESTS
int convert_free_space_to_extents(struct btrfs_trans_handle *trans,
struct btrfs_block_group_cache *block_group,
struct btrfs_path *path)
@ -487,6 +489,7 @@ out:
return ret;
}
EXPORT_FOR_TESTS
int free_space_test_bit(struct btrfs_block_group_cache *block_group,
struct btrfs_path *path, u64 offset)
{
@ -775,6 +778,7 @@ out:
return ret;
}
EXPORT_FOR_TESTS
int __remove_from_free_space_tree(struct btrfs_trans_handle *trans,
struct btrfs_block_group_cache *block_group,
struct btrfs_path *path, u64 start, u64 size)
@ -968,6 +972,7 @@ out:
return ret;
}
EXPORT_FOR_TESTS
int __add_to_free_space_tree(struct btrfs_trans_handle *trans,
struct btrfs_block_group_cache *block_group,
struct btrfs_path *path, u64 start, u64 size)

10
fs/btrfs/tests/extent-io-tests.c
View File

@ -107,7 +107,7 @@ static int test_find_delalloc(u32 sectorsize)
set_extent_delalloc(&tmp, 0, sectorsize - 1, 0, NULL);
start = 0;
end = 0;
found = btrfs_find_lock_delalloc_range(inode, &tmp, locked_page, &start,
found = find_lock_delalloc_range(inode, &tmp, locked_page, &start,
&end);
if (!found) {
test_err("should have found at least one delalloc");
@ -138,7 +138,7 @@ static int test_find_delalloc(u32 sectorsize)
set_extent_delalloc(&tmp, sectorsize, max_bytes - 1, 0, NULL);
start = test_start;
end = 0;
found = btrfs_find_lock_delalloc_range(inode, &tmp, locked_page, &start,
found = find_lock_delalloc_range(inode, &tmp, locked_page, &start,
&end);
if (!found) {
test_err("couldn't find delalloc in our range");
@ -172,7 +172,7 @@ static int test_find_delalloc(u32 sectorsize)
}
start = test_start;
end = 0;
found = btrfs_find_lock_delalloc_range(inode, &tmp, locked_page, &start,
found = find_lock_delalloc_range(inode, &tmp, locked_page, &start,
&end);
if (found) {
test_err("found range when we shouldn't have");
@ -193,7 +193,7 @@ static int test_find_delalloc(u32 sectorsize)
set_extent_delalloc(&tmp, max_bytes, total_dirty - 1, 0, NULL);
start = test_start;
end = 0;
found = btrfs_find_lock_delalloc_range(inode, &tmp, locked_page, &start,
found = find_lock_delalloc_range(inode, &tmp, locked_page, &start,
&end);
if (!found) {
test_err("didn't find our range");
@ -234,7 +234,7 @@ static int test_find_delalloc(u32 sectorsize)
* this changes at any point in the future we will need to fix this
* tests expected behavior.
*/
found = btrfs_find_lock_delalloc_range(inode, &tmp, locked_page, &start,
found = find_lock_delalloc_range(inode, &tmp, locked_page, &start,
&end);
if (!found) {
test_err("didn't find our range");