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[PATCH] md: make sure /block link in /sys/.../md/ goes to correct devices

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If a block_device is a partition, then it's kobject is
  bdev->bd_part->kobj
otherwise (if it is a full device), the kobject is
  bdev->bd_disk->kobj

As md wants back-links to the correct object (whether partition or not), we
need to respect this difference...  (Thus current code shows a link to the
whole device, whether we are using a partition or not, which is wrong).

Signed-off-by: Neil Brown <neilb@suse.de>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
NeilBrown 2005-11-08 21:39:37 -08:00 committed by Linus Torvalds
parent f91de92ed6
commit f637b9f9fc
1 changed files with 6 additions and 1 deletions
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7
drivers/md/md.c
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@ -1182,6 +1182,7 @@ static int bind_rdev_to_array(mdk_rdev_t * rdev, mddev_t * mddev)
{
mdk_rdev_t *same_pdev;
char b[BDEVNAME_SIZE], b2[BDEVNAME_SIZE];
struct kobject *ko;
if (rdev->mddev) {
MD_BUG();
@ -1221,7 +1222,11 @@ static int bind_rdev_to_array(mdk_rdev_t * rdev, mddev_t * mddev)
rdev->kobj.parent = &mddev->kobj;
kobject_add(&rdev->kobj);
sysfs_create_link(&rdev->kobj, &rdev->bdev->bd_disk->kobj, "block");
if (rdev->bdev->bd_part)
ko = &rdev->bdev->bd_part->kobj;
else
ko = &rdev->bdev->bd_disk->kobj;
sysfs_create_link(&rdev->kobj, ko, "block");
return 0;
}