28 int dm_linear_ctr(struct dm_target *ti, unsigned int argc, char **argv)  in dm_linear_ctr()  argument
35 		ti->error = "Invalid argument count";  in dm_linear_ctr()
41 		ti->error = "dm-linear: Cannot allocate linear context";  in dm_linear_ctr()
46 		ti->error = "dm-linear: Invalid device sector";  in dm_linear_ctr()
51 	if (dm_get_device(ti, argv[0], dm_table_get_mode(ti->table), &lc->dev)) {  in dm_linear_ctr()
52 		ti->error = "dm-linear: Device lookup failed";  in dm_linear_ctr()
56 	ti->num_flush_bios = 1;  in dm_linear_ctr()
57 	ti->num_discard_bios = 1;  in dm_linear_ctr()
58 	ti->num_write_same_bios = 1;  in dm_linear_ctr()
59 	ti->private = lc;  in dm_linear_ctr()
67 void dm_linear_dtr(struct dm_target *ti)  in dm_linear_dtr()  argument
69 	struct linear_c *lc = (struct linear_c *) ti->private;  in dm_linear_dtr()
71 	dm_put_device(ti, lc->dev);  in dm_linear_dtr()
75 static sector_t linear_map_sector(struct dm_target *ti, sector_t bi_sector)  in linear_map_sector()  argument
77 	struct linear_c *lc = ti->private;  in linear_map_sector()
79 	return lc->start + dm_target_offset(ti, bi_sector);  in linear_map_sector()
82 static void linear_map_bio(struct dm_target *ti, struct bio *bio)  in linear_map_bio()  argument
84 	struct linear_c *lc = ti->private;  in linear_map_bio()
88 		bio->bi_sector = linear_map_sector(ti, bio->bi_sector);  in linear_map_bio()
91 int dm_linear_map(struct dm_target *ti, struct bio *bio)  in dm_linear_map()  argument
93 	linear_map_bio(ti, bio);  in dm_linear_map()
98 void dm_linear_status(struct dm_target *ti, status_type_t type,  in dm_linear_status()  argument
101 	struct linear_c *lc = (struct linear_c *) ti->private;  in dm_linear_status()
115 int dm_linear_ioctl(struct dm_target *ti, unsigned int cmd,  in dm_linear_ioctl()  argument
118 	struct linear_c *lc = (struct linear_c *) ti->private;  in dm_linear_ioctl()
126 	    ti->len != i_size_read(dev->bdev->bd_inode) >> SECTOR_SHIFT)  in dm_linear_ioctl()
132 int dm_linear_merge(struct dm_target *ti, struct bvec_merge_data *bvm,  in dm_linear_merge()  argument
135 	struct linear_c *lc = ti->private;  in dm_linear_merge()
142 	bvm->bi_sector = linear_map_sector(ti, bvm->bi_sector);  in dm_linear_merge()
147 int dm_linear_iterate_devices(struct dm_target *ti,  in dm_linear_iterate_devices()  argument
150 	struct linear_c *lc = ti->private;  in dm_linear_iterate_devices()
152 	return fn(ti, lc->dev, lc->start, ti->len, data);  in dm_linear_iterate_devices()