[dm-devel] Re: [PATCH 7/9] scsi_dh: Add support for SDEV_PASSIVE

[James Bottomley]

On Wed, 2008-01-23 at 16:32 -0800, Chandra Seetharaman wrote:
> Subject: scsi_dh: Add support for SDEV_PASSIVE
> 
> From: Chandra Seetharaman <sekharan at us.ibm.com>
> 
> This patch adds a new device state SDEV_PASSIVE, to correspond to the
> passive side access of an active/passive multipathed device.

Really, no; this isn't right.  The state field of a SCSI device is for
the SCSI state model.  Passive might be a valid device mapper state, but
it's not a valid SCSI state.  If these patches can't work except by
mucking with the SCSI state model, there's some layering problem
elsewhere that needs sorting out.

James