fs/btrfs/file-item.c

340 blk_status_t btrfs_lookup_bio_sums(struct btrfs_bio *bbio)
342 	struct btrfs_inode *inode = bbio->inode;
344 	struct bio *bio = &bbio->bio;
376 		bbio->csum = kmalloc_array(nblocks, csum_size, GFP_NOFS);
377 		if (!bbio->csum) {
382 		bbio->csum = bbio->csum_inline;
406 		u8 *csum_dst = bbio->csum +
413 			if (bbio->csum != bbio->csum_inline)
414 				kfree(bbio->csum);
415 			bbio->csum = NULL;
435 				u64 file_offset = bbio->file_offset + bio_offset;
728 blk_status_t btrfs_csum_one_bio(struct btrfs_bio *bbio)
730 	struct btrfs_ordered_extent *ordered = bbio->ordered;
731 	struct btrfs_inode *inode = bbio->inode;
734 	struct bio *bio = &bbio->bio;
777 	bbio->sums = sums;
787 blk_status_t btrfs_alloc_dummy_sum(struct btrfs_bio *bbio)
789 	bbio->sums = kmalloc(sizeof(*bbio->sums), GFP_NOFS);
790 	if (!bbio->sums)
792 	bbio->sums->len = bbio->bio.bi_iter.bi_size;
793 	bbio->sums->logical = bbio->bio.bi_iter.bi_sector << SECTOR_SHIFT;
794 	btrfs_add_ordered_sum(bbio->ordered, bbio->sums);