diff options
Diffstat (limited to 'fs/btrfs/subpage.h')
| -rw-r--r-- | fs/btrfs/subpage.h | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/fs/btrfs/subpage.h b/fs/btrfs/subpage.h index 4de61ee93859..ee118bb2c22f 100644 --- a/fs/btrfs/subpage.h +++ b/fs/btrfs/subpage.h @@ -128,6 +128,13 @@ void btrfs_folio_end_lock_bitmap(const struct btrfs_fs_info *fs_info, * btrfs_folio_clamp_*() are similar to btrfs_folio_*(), except the range doesn't * need to be inside the page. Those functions will truncate the range * automatically. + * + * Both btrfs_folio_*() and btrfs_folio_clamp_*() are for data folios. + * + * For metadata, one should use btrfs_meta_folio_*() helpers instead, and there + * is no clamp version for metadata helpers, as we either go subpage + * (nodesize < PAGE_SIZE) or go regular folio helpers (nodesize >= PAGE_SIZE, + * and our folio is never larger than nodesize). */ #define DECLARE_BTRFS_SUBPAGE_OPS(name) \ void btrfs_subpage_set_##name(const struct btrfs_fs_info *fs_info, \ @@ -147,7 +154,13 @@ void btrfs_folio_clamp_set_##name(const struct btrfs_fs_info *fs_info, \ void btrfs_folio_clamp_clear_##name(const struct btrfs_fs_info *fs_info, \ struct folio *folio, u64 start, u32 len); \ bool btrfs_folio_clamp_test_##name(const struct btrfs_fs_info *fs_info, \ - struct folio *folio, u64 start, u32 len); + struct folio *folio, u64 start, u32 len); \ +void btrfs_meta_folio_set_##name(const struct btrfs_fs_info *fs_info, \ + struct folio *folio, u64 start, u32 len); \ +void btrfs_meta_folio_clear_##name(const struct btrfs_fs_info *fs_info, \ + struct folio *folio, u64 start, u32 len); \ +bool btrfs_meta_folio_test_##name(const struct btrfs_fs_info *fs_info, \ + struct folio *folio, u64 start, u32 len); \ DECLARE_BTRFS_SUBPAGE_OPS(uptodate); DECLARE_BTRFS_SUBPAGE_OPS(dirty); |