diff options
Diffstat (limited to 'fs/btrfs/subpage.h')
| -rw-r--r-- | fs/btrfs/subpage.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/btrfs/subpage.h b/fs/btrfs/subpage.h index bfd626e955be..291cb1932f27 100644 --- a/fs/btrfs/subpage.h +++ b/fs/btrfs/subpage.h @@ -72,6 +72,10 @@ void btrfs_subpage_end_reader(const struct btrfs_fs_info *fs_info, * btrfs_page_*() are for call sites where the page can either be subpage * specific or regular page. The function will handle both cases. * But the range still needs to be inside the page. + * + * btrfs_page_clamp_*() are similar to btrfs_page_*(), except the range doesn't + * need to be inside the page. Those functions will truncate the range + * automatically. */ #define DECLARE_BTRFS_SUBPAGE_OPS(name) \ void btrfs_subpage_set_##name(const struct btrfs_fs_info *fs_info, \ @@ -85,6 +89,12 @@ void btrfs_page_set_##name(const struct btrfs_fs_info *fs_info, \ void btrfs_page_clear_##name(const struct btrfs_fs_info *fs_info, \ struct page *page, u64 start, u32 len); \ bool btrfs_page_test_##name(const struct btrfs_fs_info *fs_info, \ + struct page *page, u64 start, u32 len); \ +void btrfs_page_clamp_set_##name(const struct btrfs_fs_info *fs_info, \ + struct page *page, u64 start, u32 len); \ +void btrfs_page_clamp_clear_##name(const struct btrfs_fs_info *fs_info, \ + struct page *page, u64 start, u32 len); \ +bool btrfs_page_clamp_test_##name(const struct btrfs_fs_info *fs_info, \ struct page *page, u64 start, u32 len); DECLARE_BTRFS_SUBPAGE_OPS(uptodate); |