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@xxxxxxx>
### Diffstat output
./drivers/md/md.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff ./drivers/md/md.c~current~ ./drivers/md/md.c
--- ./drivers/md/md.c~current~ 2005-11-02 17:32:28.000000000 +1100
+++ ./drivers/md/md.c 2005-11-02 17:32:41.000000000 +1100
@@ -1182,6 +1182,7 @@ static int bind_rdev_to_array(mdk_rdev_t
{
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->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;
}
-
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