Re: [PATCH 0/2] sd: Fix a deadlock between event checking and device removal

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On Fri, 2016-11-11 at 16:38 -0800, Bart Van Assche wrote:
> Hello James and Martin,
> 
> This short patch series fixes a deadlock that I ran into for the 
> first time several months ago but for which I had not yet had the 
> time to post a fix. As usual, feedback is appreciated.

First question would be why do we need to push highly dm specific
knowledge into block, like REQ_FAIL_IF_NO_PATH.  Can't we just use
REQ_FAILFAST_X for this?

Also, I don't quite understand how you've configured multipath
underneath SCSI.  I thought dm-mp always went on top?

James





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