aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--drivers/md/dm-thin.c13
-rw-r--r--drivers/md/dm.c6
2 files changed, 5 insertions, 14 deletions
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index 675ae5274016..5409607d4875 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -2746,19 +2746,9 @@ static int thin_iterate_devices(struct dm_target *ti,
2746 return 0; 2746 return 0;
2747} 2747}
2748 2748
2749/*
2750 * A thin device always inherits its queue limits from its pool.
2751 */
2752static void thin_io_hints(struct dm_target *ti, struct queue_limits *limits)
2753{
2754 struct thin_c *tc = ti->private;
2755
2756 *limits = bdev_get_queue(tc->pool_dev->bdev)->limits;
2757}
2758
2759static struct target_type thin_target = { 2749static struct target_type thin_target = {
2760 .name = "thin", 2750 .name = "thin",
2761 .version = {1, 6, 0}, 2751 .version = {1, 7, 0},
2762 .module = THIS_MODULE, 2752 .module = THIS_MODULE,
2763 .ctr = thin_ctr, 2753 .ctr = thin_ctr,
2764 .dtr = thin_dtr, 2754 .dtr = thin_dtr,
@@ -2767,7 +2757,6 @@ static struct target_type thin_target = {
2767 .postsuspend = thin_postsuspend, 2757 .postsuspend = thin_postsuspend,
2768 .status = thin_status, 2758 .status = thin_status,
2769 .iterate_devices = thin_iterate_devices, 2759 .iterate_devices = thin_iterate_devices,
2770 .io_hints = thin_io_hints,
2771}; 2760};
2772 2761
2773/*----------------------------------------------------------------*/ 2762/*----------------------------------------------------------------*/
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index c72e4d5a9617..314a0e2faf79 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1188,6 +1188,7 @@ static int __clone_and_map_changing_extent_only(struct clone_info *ci,
1188{ 1188{
1189 struct dm_target *ti; 1189 struct dm_target *ti;
1190 sector_t len; 1190 sector_t len;
1191 unsigned num_requests;
1191 1192
1192 do { 1193 do {
1193 ti = dm_table_find_target(ci->map, ci->sector); 1194 ti = dm_table_find_target(ci->map, ci->sector);
@@ -1200,7 +1201,8 @@ static int __clone_and_map_changing_extent_only(struct clone_info *ci,
1200 * reconfiguration might also have changed that since the 1201 * reconfiguration might also have changed that since the
1201 * check was performed. 1202 * check was performed.
1202 */ 1203 */
1203 if (!get_num_requests || !get_num_requests(ti)) 1204 num_requests = get_num_requests ? get_num_requests(ti) : 0;
1205 if (!num_requests)
1204 return -EOPNOTSUPP; 1206 return -EOPNOTSUPP;
1205 1207
1206 if (is_split_required && !is_split_required(ti)) 1208 if (is_split_required && !is_split_required(ti))
@@ -1208,7 +1210,7 @@ static int __clone_and_map_changing_extent_only(struct clone_info *ci,
1208 else 1210 else
1209 len = min(ci->sector_count, max_io_len(ci->sector, ti)); 1211 len = min(ci->sector_count, max_io_len(ci->sector, ti));
1210 1212
1211 __issue_target_requests(ci, ti, ti->num_discard_requests, len); 1213 __issue_target_requests(ci, ti, num_requests, len);
1212 1214
1213 ci->sector += len; 1215 ci->sector += len;
1214 } while (ci->sector_count -= len); 1216 } while (ci->sector_count -= len);