ACK: [PATCH] UBUNTU: SAUCE: s390/dasd: Fix error handling during online processing

[Seth Forshee]

On Fri, Sep 27, 2019 at 04:46:23PM +0100, Dimitri John Ledkov wrote:
> From: Jan Höppner <hoeppner at linux.ibm.com>
> 
> BugLink: https://bugs.launchpad.net/bugs/1845323
> 
> It is possible that the CCW commands for reading volume and extent pool
> information are not supported, either by the storage server (for
> dedicated DASDs) or by z/VM (for virtual devices, such as MDISKs).
> 
> As a command reject will occur in such a case, the current error
> handling leads to a failing online processing and thus the DASD can't be
> used at all.
> 
> Since the data being read is not essential for an fully operational
> DASD, the error handling can be removed. Information about the failing
> command is sent to the s390dbf debug feature.
> 
> Fixes: c729696bcf8b ("s390/dasd: Recognise data for ESE volumes")
> Cc: <stable at vger.kernel.org> # 5.3
> Reported-by: Frank Heimes <frank.heimes at canonical.com>
> Signed-off-by: Jan Höppner <hoeppner at linux.ibm.com>
> Signed-off-by: Dimitri John Ledkov <xnox at ubuntu.com>

Limited scope, fixes a bug critical for eoan release.

Acked-by: Seth Forshee <seth.forshee at canonical.com>