Techwizz/kernel-fxtec-pro1x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

md: destroy partitions and notify udev when md array is stopped.

Browse source 
md arrays are not currently destroyed when they are stopped - they
remain in /sys/block.  Last time I tried this I tripped over locking
too much.

A consequence of this is that udev doesn't remove anything from /dev.
This is rather ugly.

As an interim measure until proper device removal can be achieved,
make sure all partitions are removed using the BLKRRPART ioctl, and
send a KOBJ_CHANGE when an md array is stopped.

Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
NeilBrown 2008-10-28 17:01:23 +11:00
parent f8d56f1771
commit 934d9c23b4
1 changed files with 7 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
drivers/md/md.c
View file

@ -3884,6 +3884,7 @@ static int do_md_stop(mddev_t * mddev, int mode, int is_open)
if (mode == 0) { if (mode == 0) {
mdk_rdev_t *rdev; mdk_rdev_t *rdev;
struct list_head *tmp; struct list_head *tmp;
struct block_device *bdev;
printk(KERN_INFO "md: %s stopped.\n", mdname(mddev)); printk(KERN_INFO "md: %s stopped.\n", mdname(mddev));
@ -3940,6 +3941,12 @@ static int do_md_stop(mddev_t * mddev, int mode, int is_open)
mddev->degraded = 0; mddev->degraded = 0;
mddev->barriers_work = 0; mddev->barriers_work = 0;
mddev->safemode = 0; mddev->safemode = 0;
bdev = bdget_disk(mddev->gendisk, 0);
if (bdev) {
blkdev_ioctl(bdev, 0, BLKRRPART, 0);
bdput(bdev);
}
kobject_uevent(&disk_to_dev(mddev->gendisk)->kobj, KOBJ_CHANGE);
} else if (mddev->pers) } else if (mddev->pers)
printk(KERN_INFO "md: %s switched to read-only mode.\n", printk(KERN_INFO "md: %s switched to read-only mode.\n",