29 static int linear_ctr(struct dm_target *ti, unsigned int argc, char **argv)  in linear_ctr()  argument
37 		ti->error = "Invalid argument count";  in linear_ctr()
43 		ti->error = "Cannot allocate linear context";  in linear_ctr()
49 		ti->error = "Invalid device sector";  in linear_ctr()
54 	ret = dm_get_device(ti, argv[0], dm_table_get_mode(ti->table), &lc->dev);  in linear_ctr()
56 		ti->error = "Device lookup failed";  in linear_ctr()
60 	ti->num_flush_bios = 1;  in linear_ctr()
61 	ti->num_discard_bios = 1;  in linear_ctr()
62 	ti->num_secure_erase_bios = 1;  in linear_ctr()
63 	ti->num_write_same_bios = 1;  in linear_ctr()
64 	ti->num_write_zeroes_bios = 1;  in linear_ctr()
65 	ti->private = lc;  in linear_ctr()
73 static void linear_dtr(struct dm_target *ti)  in linear_dtr()  argument
75 	struct linear_c *lc = (struct linear_c *) ti->private;  in linear_dtr()
77 	dm_put_device(ti, lc->dev);  in linear_dtr()
81 static sector_t linear_map_sector(struct dm_target *ti, sector_t bi_sector)  in linear_map_sector()  argument
83 	struct linear_c *lc = ti->private;  in linear_map_sector()
85 	return lc->start + dm_target_offset(ti, bi_sector);  in linear_map_sector()
88 static void linear_map_bio(struct dm_target *ti, struct bio *bio)  in linear_map_bio()  argument
90 	struct linear_c *lc = ti->private;  in linear_map_bio()
95 			linear_map_sector(ti, bio->bi_iter.bi_sector);  in linear_map_bio()
98 static int linear_map(struct dm_target *ti, struct bio *bio)  in linear_map()  argument
100 	linear_map_bio(ti, bio);  in linear_map()
106 static int linear_end_io(struct dm_target *ti, struct bio *bio,  in linear_end_io()  argument
109 	struct linear_c *lc = ti->private;  in linear_end_io()
112 		dm_remap_zone_report(ti, bio, lc->start);  in linear_end_io()
118 static void linear_status(struct dm_target *ti, status_type_t type,  in linear_status()  argument
121 	struct linear_c *lc = (struct linear_c *) ti->private;  in linear_status()
135 static int linear_prepare_ioctl(struct dm_target *ti, struct block_device **bdev)  in linear_prepare_ioctl()  argument
137 	struct linear_c *lc = (struct linear_c *) ti->private;  in linear_prepare_ioctl()
146 	    ti->len != i_size_read(dev->bdev->bd_inode) >> SECTOR_SHIFT)  in linear_prepare_ioctl()
151 static int linear_iterate_devices(struct dm_target *ti,  in linear_iterate_devices()  argument
154 	struct linear_c *lc = ti->private;  in linear_iterate_devices()
156 	return fn(ti, lc->dev, lc->start, ti->len, data);  in linear_iterate_devices()
160 static long linear_dax_direct_access(struct dm_target *ti, pgoff_t pgoff,  in linear_dax_direct_access()  argument
164 	struct linear_c *lc = ti->private;  in linear_dax_direct_access()
169 	dev_sector = linear_map_sector(ti, sector);  in linear_dax_direct_access()
176 static size_t linear_dax_copy_from_iter(struct dm_target *ti, pgoff_t pgoff,  in linear_dax_copy_from_iter()  argument
179 	struct linear_c *lc = ti->private;  in linear_dax_copy_from_iter()
184 	dev_sector = linear_map_sector(ti, sector);  in linear_dax_copy_from_iter()
190 static size_t linear_dax_copy_to_iter(struct dm_target *ti, pgoff_t pgoff,  in linear_dax_copy_to_iter()  argument
193 	struct linear_c *lc = ti->private;  in linear_dax_copy_to_iter()
198 	dev_sector = linear_map_sector(ti, sector);  in linear_dax_copy_to_iter()