1 files changed, 17 insertions, 6 deletions

diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index ae12ceafe10c..3d9020cf6f6e 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1151,8 +1151,8 @@ static int raid10_add_disk(mddev_t *mddev, mdk_rdev_t *rdev)
         for ( ; mirror <= last ; mirror++)
                 if ( !(p=conf->mirrors+mirror)->rdev) {
 
-                        blk_queue_stack_limits(mddev->queue,
-                                               rdev->bdev->bd_disk->queue);
+                        disk_stack_limits(mddev->gendisk, rdev->bdev,
+                                          rdev->data_offset << 9);
                         /* as we don't honour merge_bvec_fn, we must never risk
                          * violating it, so limit ->max_sector to one PAGE, as
                          * a one page request is never in violation.
@@ -1170,6 +1170,7 @@ static int raid10_add_disk(mddev_t *mddev, mdk_rdev_t *rdev)
                         break;
                 }
 
+        md_integrity_add_rdev(rdev, mddev);
         print_conf(conf);
         return err;
 }
@@ -1203,7 +1204,9 @@ static int raid10_remove_disk(mddev_t *mddev, int number)
                         /* lost the race, try later */
                         err = -EBUSY;
                         p->rdev = rdev;
+                        goto abort;
                 }
+                md_integrity_register(mddev);
         }
 abort:
 
@@ -2044,7 +2047,7 @@ raid10_size(mddev_t *mddev, sector_t sectors, int raid_disks)
 static int run(mddev_t *mddev)
 {
         conf_t *conf;
-        int i, disk_idx;
+        int i, disk_idx, chunk_size;
         mirror_info_t *disk;
         mdk_rdev_t *rdev;
         int nc, fc, fo;
@@ -2130,6 +2133,14 @@ static int run(mddev_t *mddev)
         spin_lock_init(&conf->device_lock);
         mddev->queue->queue_lock = &conf->device_lock;
 
+        chunk_size = mddev->chunk_sectors << 9;
+        blk_queue_io_min(mddev->queue, chunk_size);
+        if (conf->raid_disks % conf->near_copies)
+                blk_queue_io_opt(mddev->queue, chunk_size * conf->raid_disks);
+        else
+                blk_queue_io_opt(mddev->queue, chunk_size *
+                                 (conf->raid_disks / conf->near_copies));
+
         list_for_each_entry(rdev, &mddev->disks, same_set) {
                 disk_idx = rdev->raid_disk;
                 if (disk_idx >= mddev->raid_disks
@@ -2138,9 +2149,8 @@ static int run(mddev_t *mddev)
                 disk = conf->mirrors + disk_idx;
 
                 disk->rdev = rdev;
-
-                blk_queue_stack_limits(mddev->queue,
-                                       rdev->bdev->bd_disk->queue);
+                disk_stack_limits(mddev->gendisk, rdev->bdev,
+                                  rdev->data_offset << 9);
                 /* as we don't honour merge_bvec_fn, we must never risk
                  * violating it, so limit ->max_sector to one PAGE, as
                  * a one page request is never in violation.
@@ -2218,6 +2228,7 @@ static int run(mddev_t *mddev)
 
         if (conf->near_copies < mddev->raid_disks)
                 blk_queue_merge_bvec(mddev->queue, raid10_mergeable_bvec);
+        md_integrity_register(mddev);
         return 0;
 
 out_free_conf: