On (24/10/08 13:57), Christoph Hellwig wrote:
> Now that we stop sd and sr from submitting passthrough commands from
> their ->release methods we can and should start the drain before taking
> ->open_mutex, so that we can entirely prevent this kind of deadlock by
> ensuring that the disk is clearly marked dead before open_mutex is
> taken in del_gendisk.
>
> This includes a revert of commit 7e04da2dc701 ("block: fix deadlock
> between sd_remove & sd_release"), which was a partial fix for a similar
> deadlock.
>
> Reported-by: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx>
> Suggested-by: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx>
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>
FWIW
Reviewed-by: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx>
