linux-master/block/blk-lib.c

13 static sector_t bio_discard_limit(struct block_device *bdev, sector_t sector)
19 		sector += bdev->bd_start_sect;
22 		round_up(sector, discard_granularity >> SECTOR_SHIFT);
28 	if (granularity_aligned_sector != sector)
29 		return granularity_aligned_sector - sector;
38 int __blkdev_issue_discard(struct block_device *bdev, sector_t sector,
57 	if ((sector | nr_sects) & bs_mask)
65 			min(nr_sects, bio_discard_limit(bdev, sector));
68 		bio->bi_iter.bi_sector = sector;
70 		sector += req_sects;
90  * @sector:	start sector
97 int blkdev_issue_discard(struct block_device *bdev, sector_t sector,
105 	ret = __blkdev_issue_discard(bdev, sector, nr_sects, gfp_mask, &bio);
119 		sector_t sector, sector_t nr_sects, gfp_t gfp_mask,
138 		bio->bi_iter.bi_sector = sector;
144 		sector += len;
166 		sector_t sector, sector_t nr_sects, gfp_t gfp_mask,
179 		bio->bi_iter.bi_sector = sector;
185 			sector += bi_size >> 9;
199  * @sector:	start sector
215 int __blkdev_issue_zeroout(struct block_device *bdev, sector_t sector,
223 	if ((sector | nr_sects) & bs_mask)
226 	ret = __blkdev_issue_write_zeroes(bdev, sector, nr_sects, gfp_mask,
231 	return __blkdev_issue_zero_pages(bdev, sector, nr_sects, gfp_mask,
239  * @sector:	start sector
249 int blkdev_issue_zeroout(struct block_device *bdev, sector_t sector,
259 	if ((sector | nr_sects) & bs_mask)
266 		ret = __blkdev_issue_write_zeroes(bdev, sector, nr_sects,
269 		ret = __blkdev_issue_zero_pages(bdev, sector, nr_sects,
300 int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector,
316 	if ((sector | nr_sects) & bs_mask)
326 		bio->bi_iter.bi_sector = sector;
329 		sector += len;