diff options
Diffstat (limited to 'fs/btrfs/extent_io.h')
| -rw-r--r-- | fs/btrfs/extent_io.h | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h index 6c5328bfabc2..2e261892c7bc 100644 --- a/fs/btrfs/extent_io.h +++ b/fs/btrfs/extent_io.h @@ -252,8 +252,6 @@ void clear_folio_extent_mapped(struct folio *folio); struct extent_buffer *alloc_extent_buffer(struct btrfs_fs_info *fs_info, u64 start, u64 owner_root, int level); -struct extent_buffer *__alloc_dummy_extent_buffer(struct btrfs_fs_info *fs_info, - u64 start, unsigned long len); struct extent_buffer *alloc_dummy_extent_buffer(struct btrfs_fs_info *fs_info, u64 start); struct extent_buffer *btrfs_clone_extent_buffer(const struct extent_buffer *src); @@ -276,7 +274,8 @@ void btrfs_readahead_tree_block(struct btrfs_fs_info *fs_info, u64 bytenr, u64 owner_root, u64 gen, int level); void btrfs_readahead_node_child(struct extent_buffer *node, int slot); -static inline int num_extent_pages(const struct extent_buffer *eb) +/* Note: this can be used in for loops without caching the value in a variable. */ +static inline int __pure num_extent_pages(const struct extent_buffer *eb) { /* * For sectorsize == PAGE_SIZE case, since nodesize is always aligned to @@ -294,8 +293,10 @@ static inline int num_extent_pages(const struct extent_buffer *eb) * As we can have either one large folio covering the whole eb * (either nodesize <= PAGE_SIZE, or high order folio), or multiple * single-paged folios. + * + * Note: this can be used in for loops without caching the value in a variable. */ -static inline int num_extent_folios(const struct extent_buffer *eb) +static inline int __pure num_extent_folios(const struct extent_buffer *eb) { if (folio_order(eb->folios[0])) return 1; |