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Re: [dm-devel] [PATCH 0/2] dm: Add no_abort_q feature flag to dm-mpath



> -----Original Message-----
> From: linux-scsi-owner vger kernel org [mailto:linux-scsi-
> owner vger kernel org] On Behalf Of Mike Anderson
> Sent: Monday, May 03, 2010 11:01 PM
> To: dm-devel redhat com
> Cc: linux-scsi vger kernel org
> Subject: [PATCH 0/2] dm: Add no_abort_q feature flag to dm-mpath
> 
> This patch series contains two patches.
> 
> 1.) The first patch adds a feature flags bit field to the multipath
> structure for selected features.
> 
> 2.) The second patch allows a user to set a feature flag for a dm-mpath
> device of "no_abort_q" to indicate that deactivate_path should not call
> blk_abort_queue. I tried to select a short feature name to feature
> output
> listed with multipath -l would not be too long "features='2
> queue_if_no_path
> no_abort_q'

Mike, 
 In what special circumstances you recommend to use this feature? It would be great if you could add that explanation in your patch descriptions. 


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