raid1 faulty disk --> hot adding

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Hello guys.
I tried to to raidhotadd a faulty disk to a mirror and it failed
saying that "bd_claim failed on..."
i took a dive into the  code and it seems that when a disk in the raid
fails the bd_holder fileld in
the block_device struct remained with the old value although the disk
was faulty.
So the logical thing to do was to set rdev->bdev->bd_holder to 0x00 .
I did it in the error() routine in raid1.c .
This way I manage to hotadd a disk.
Are there anyone here that can point his view regarding this matter  ?
--
Raz
Long Live the Penguin
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