diff options
-rw-r--r-- | fs/bio.c | 16 |
1 files changed, 8 insertions, 8 deletions
@@ -638,10 +638,11 @@ static int __bio_add_page(struct request_queue *q, struct bio *bio, struct page | |||
638 | * @offset: vec entry offset | 638 | * @offset: vec entry offset |
639 | * | 639 | * |
640 | * Attempt to add a page to the bio_vec maplist. This can fail for a | 640 | * Attempt to add a page to the bio_vec maplist. This can fail for a |
641 | * number of reasons, such as the bio being full or target block | 641 | * number of reasons, such as the bio being full or target block device |
642 | * device limitations. The target block device must allow bio's | 642 | * limitations. The target block device must allow bio's up to PAGE_SIZE, |
643 | * smaller than PAGE_SIZE, so it is always possible to add a single | 643 | * so it is always possible to add a single page to an empty bio. |
644 | * page to an empty bio. This should only be used by REQ_PC bios. | 644 | * |
645 | * This should only be used by REQ_PC bios. | ||
645 | */ | 646 | */ |
646 | int bio_add_pc_page(struct request_queue *q, struct bio *bio, struct page *page, | 647 | int bio_add_pc_page(struct request_queue *q, struct bio *bio, struct page *page, |
647 | unsigned int len, unsigned int offset) | 648 | unsigned int len, unsigned int offset) |
@@ -659,10 +660,9 @@ EXPORT_SYMBOL(bio_add_pc_page); | |||
659 | * @offset: vec entry offset | 660 | * @offset: vec entry offset |
660 | * | 661 | * |
661 | * Attempt to add a page to the bio_vec maplist. This can fail for a | 662 | * Attempt to add a page to the bio_vec maplist. This can fail for a |
662 | * number of reasons, such as the bio being full or target block | 663 | * number of reasons, such as the bio being full or target block device |
663 | * device limitations. The target block device must allow bio's | 664 | * limitations. The target block device must allow bio's up to PAGE_SIZE, |
664 | * smaller than PAGE_SIZE, so it is always possible to add a single | 665 | * so it is always possible to add a single page to an empty bio. |
665 | * page to an empty bio. | ||
666 | */ | 666 | */ |
667 | int bio_add_page(struct bio *bio, struct page *page, unsigned int len, | 667 | int bio_add_page(struct bio *bio, struct page *page, unsigned int len, |
668 | unsigned int offset) | 668 | unsigned int offset) |