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btrfs: unexport btrfs_subpage_start_writer() and btrfs_subpage_end_and_test_writer()

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Both functions were introduced in commit 1e1de38792 ("btrfs: make
process_one_page() to handle subpage locking"), but they have never
been utilized out of subpage code.  So just unexport them.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Qu Wenruo 2024-02-17 16:59:48 +10:30 • committed by David Sterba
parent 970ea37488
commit 621b9ff18c
2 changed files with 4 additions and 8 deletions
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8
fs/btrfs/subpage.c
View file

@ -290,8 +290,8 @@ static void btrfs_subpage_clamp_range(struct folio *folio, u64 *start, u32 *len)
orig_start + orig_len) - *start;
}
void btrfs_subpage_start_writer(const struct btrfs_fs_info *fs_info,
struct folio *folio, u64 start, u32 len)
static void btrfs_subpage_start_writer(const struct btrfs_fs_info *fs_info,
struct folio *folio, u64 start, u32 len)
{
struct btrfs_subpage *subpage = folio_get_private(folio);
const int nbits = (len >> fs_info->sectorsize_bits);
@ -304,8 +304,8 @@ void btrfs_subpage_start_writer(const struct btrfs_fs_info *fs_info,
ASSERT(ret == nbits);
}
bool btrfs_subpage_end_and_test_writer(const struct btrfs_fs_info *fs_info,
struct folio *folio, u64 start, u32 len)
static bool btrfs_subpage_end_and_test_writer(const struct btrfs_fs_info *fs_info,
struct folio *folio, u64 start, u32 len)
{
struct btrfs_subpage *subpage = folio_get_private(folio);
const int nbits = (len >> fs_info->sectorsize_bits);

4
fs/btrfs/subpage.h
View file

@ -98,10 +98,6 @@ void btrfs_subpage_start_reader(const struct btrfs_fs_info *fs_info,
void btrfs_subpage_end_reader(const struct btrfs_fs_info *fs_info,
struct folio *folio, u64 start, u32 len);
void btrfs_subpage_start_writer(const struct btrfs_fs_info *fs_info,
struct folio *folio, u64 start, u32 len);
bool btrfs_subpage_end_and_test_writer(const struct btrfs_fs_info *fs_info,
struct folio *folio, u64 start, u32 len);
int btrfs_folio_start_writer_lock(const struct btrfs_fs_info *fs_info,
struct folio *folio, u64 start, u32 len);
void btrfs_folio_end_writer_lock(const struct btrfs_fs_info *fs_info,