diff options
Diffstat (limited to 'include/linux/iomap.h')
| -rw-r--r-- | include/linux/iomap.h | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/include/linux/iomap.h b/include/linux/iomap.h index 00179c9387c5..625d7911a2b5 100644 --- a/include/linux/iomap.h +++ b/include/linux/iomap.h @@ -416,18 +416,20 @@ static inline struct iomap_ioend *iomap_ioend_from_bio(struct bio *bio) struct iomap_writeback_ops { /* - * Required, maps the blocks so that writeback can be performed on - * the range starting at offset. + * Required, performs writeback on the passed in range * - * Can return arbitrarily large regions, but we need to call into it at + * Can map arbitrarily large regions, but we need to call into it at * least once per folio to allow the file systems to synchronize with * the write path that could be invalidating mappings. * * An existing mapping from a previous call to this method can be reused * by the file system if it is still valid. + * + * Returns the number of bytes processed or a negative errno. */ - int (*map_blocks)(struct iomap_writepage_ctx *wpc, struct inode *inode, - loff_t offset, unsigned len); + ssize_t (*writeback_range)(struct iomap_writepage_ctx *wpc, + struct folio *folio, u64 pos, unsigned int len, + u64 end_pos); /* * Optional, allows the file systems to hook into bio submission, @@ -438,12 +440,6 @@ struct iomap_writeback_ops { * the bio could not be submitted. */ int (*submit_ioend)(struct iomap_writepage_ctx *wpc, int status); - - /* - * Optional, allows the file system to discard state on a page where - * we failed to submit any I/O. - */ - void (*discard_folio)(struct folio *folio, loff_t pos); }; struct iomap_writepage_ctx { @@ -463,6 +459,9 @@ void iomap_finish_ioends(struct iomap_ioend *ioend, int error); void iomap_ioend_try_merge(struct iomap_ioend *ioend, struct list_head *more_ioends); void iomap_sort_ioends(struct list_head *ioend_list); +ssize_t iomap_add_to_ioend(struct iomap_writepage_ctx *wpc, struct folio *folio, + loff_t pos, loff_t end_pos, unsigned int dirty_len); + int iomap_writepages(struct iomap_writepage_ctx *wpc); /* |