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_zeroes_bios = 1;  in linear_ctr()
64 	ti->private = lc;  in linear_ctr()
72 static void linear_dtr(struct dm_target *ti)  in linear_dtr()  argument
74 	struct linear_c *lc = (struct linear_c *) ti->private;  in linear_dtr()
76 	dm_put_device(ti, lc->dev);  in linear_dtr()
80 static sector_t linear_map_sector(struct dm_target *ti, sector_t bi_sector)  in linear_map_sector()  argument
82 	struct linear_c *lc = ti->private;  in linear_map_sector()
84 	return lc->start + dm_target_offset(ti, bi_sector);  in linear_map_sector()
87 static int linear_map(struct dm_target *ti, struct bio *bio)  in linear_map()  argument
89 	struct linear_c *lc = ti->private;  in linear_map()
92 	bio->bi_iter.bi_sector = linear_map_sector(ti, bio->bi_iter.bi_sector);  in linear_map()
97 static void linear_status(struct dm_target *ti, status_type_t type,  in linear_status()  argument
100 	struct linear_c *lc = (struct linear_c *) ti->private;  in linear_status()
113 		DMEMIT_TARGET_NAME_VERSION(ti->type);  in linear_status()
120 static int linear_prepare_ioctl(struct dm_target *ti, struct block_device **bdev)  in linear_prepare_ioctl()  argument
122 	struct linear_c *lc = (struct linear_c *) ti->private;  in linear_prepare_ioctl()
130 	if (lc->start || ti->len != bdev_nr_sectors(dev->bdev))  in linear_prepare_ioctl()
136 static int linear_report_zones(struct dm_target *ti,  in linear_report_zones()  argument
139 	struct linear_c *lc = ti->private;  in linear_report_zones()
142 			       linear_map_sector(ti, args->next_sector),  in linear_report_zones()
149 static int linear_iterate_devices(struct dm_target *ti,  in linear_iterate_devices()  argument
152 	struct linear_c *lc = ti->private;  in linear_iterate_devices()
154 	return fn(ti, lc->dev, lc->start, ti->len, data);  in linear_iterate_devices()
158 static struct dax_device *linear_dax_pgoff(struct dm_target *ti, pgoff_t *pgoff)  in linear_dax_pgoff()  argument
160 	struct linear_c *lc = ti->private;  in linear_dax_pgoff()
161 	sector_t sector = linear_map_sector(ti, *pgoff << PAGE_SECTORS_SHIFT);  in linear_dax_pgoff()
167 static long linear_dax_direct_access(struct dm_target *ti, pgoff_t pgoff,  in linear_dax_direct_access()  argument
171 	struct dax_device *dax_dev = linear_dax_pgoff(ti, &pgoff);  in linear_dax_direct_access()
176 static int linear_dax_zero_page_range(struct dm_target *ti, pgoff_t pgoff,  in linear_dax_zero_page_range()  argument
179 	struct dax_device *dax_dev = linear_dax_pgoff(ti, &pgoff);  in linear_dax_zero_page_range()
184 static size_t linear_dax_recovery_write(struct dm_target *ti, pgoff_t pgoff,  in linear_dax_recovery_write()  argument
187 	struct dax_device *dax_dev = linear_dax_pgoff(ti, &pgoff);  in linear_dax_recovery_write()