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md: allow extended partitions on md devices.

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The new extended partition support provides a much nicer was
to have partitions on md devices that the 'mdp' alternate major.
We cannot really get rid of 'mdp' at this time, but we can
enable extended partitions as that will probably make life
easier for sysadmins.

Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
NeilBrown 2008-10-21 13:25:32 +11:00
parent 3c0ee63a64
commit 92850bbd71
1 changed files with 5 additions and 0 deletions
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5
drivers/md/md.c
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@ -3463,6 +3463,11 @@ static struct kobject *md_probe(dev_t dev, int *part, void *data)
disk->fops = &md_fops; disk->fops = &md_fops;
disk->private_data = mddev; disk->private_data = mddev;
disk->queue = mddev->queue; disk->queue = mddev->queue;
/* Allow extended partitions. This makes the
* 'mdp' device redundant, but we can really
* remove it now.
*/
disk->flags |= GENHD_FL_EXT_DEVT;
add_disk(disk); add_disk(disk);
mddev->gendisk = disk; mddev->gendisk = disk;
error = kobject_init_and_add(&mddev->kobj, &md_ktype, error = kobject_init_and_add(&mddev->kobj, &md_ktype,