Re: [BUG 2.6.17-git] kmem_cache_create: duplicate cache scsi_cmd_cache

[Linus Torvalds]

On Fri, 12 May 2006, Al Viro wrote:
> 
> PS: it _is_ OK to trigger than puppy from add_disk()/del_gendisk() and in
> between.  I'm not sure if anyone needs it for anything, though.  Triggering
> it from bdev_uevent() is definitely bogus.

Wouldn't it be perfectly ok if we just made sure to keep the disk device 
refcount elevated by the _mount_?

Ie Russell's patch to elevate it around everything didn't work, but 
elevating the bdev->bd_disk reference count by a mount, and dropping it on 
umount (after doing the umount event) should be ok. No?

		Linus
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