From: NeilBrown An md array can be stopped leaving all the setting still in place, or it can torn down and destroyed. set_capacity and other change notifications only happen in the latter case, but should happen in both. Signed-off-by: Neil Brown Signed-off-by: Andrew Morton --- drivers/md/md.c | 10 +++++----- 1 files changed, 5 insertions(+), 5 deletions(-) diff -puN drivers/md/md.c~md-tidy-up-device-change-notification-when-an-md-array-is-stopped drivers/md/md.c --- a/drivers/md/md.c~md-tidy-up-device-change-notification-when-an-md-array-is-stopped +++ a/drivers/md/md.c @@ -3314,6 +3314,10 @@ static int do_md_stop(mddev_t * mddev, i module_put(mddev->pers->owner); mddev->pers = NULL; + + set_capacity(disk, 0); + mddev->changed = 1; + if (mddev->ro) mddev->ro = 0; } @@ -3333,7 +3337,7 @@ static int do_md_stop(mddev_t * mddev, i if (mode == 0) { mdk_rdev_t *rdev; struct list_head *tmp; - struct gendisk *disk; + printk(KERN_INFO "md: %s stopped.\n", mdname(mddev)); bitmap_destroy(mddev); @@ -3358,10 +3362,6 @@ static int do_md_stop(mddev_t * mddev, i mddev->raid_disks = 0; mddev->recovery_cp = 0; - disk = mddev->gendisk; - if (disk) - set_capacity(disk, 0); - mddev->changed = 1; } else if (mddev->pers) printk(KERN_INFO "md: %s switched to read-only mode.\n", mdname(mddev)); _