Re: [PATCH 4.4 34/91] scsi: storvsc: use tagged SRB requests if supported by the device

From: Greg Kroah-Hartman
Date: Fri Mar 10 2017 - 10:21:52 EST


On Fri, Mar 10, 2017 at 02:56:59PM +0000, Ben Hutchings wrote:
> On Fri, 2017-03-10 at 10:08 +0100, Greg Kroah-Hartman wrote:
> > 4.4-stable review patch.  If anyone has any objections, please let me know.
> >
> > ------------------
> >
> > From: Long Li <longli@xxxxxxxxxxxxx>
> >
> > commit 3cd6d3d9b1abab8dcdf0800224ce26daac24eea2 upstream.
> >
> > Properly set SRB flags when hosting device supports tagged queuing.
> > This patch improves the performance on Fiber Channel disks.
> [...]
>
> This looks more like a feature/optimisation than a bug fix. Is this
> really within the stable rules?

Making things work properly (i.e. i/o does not suck anymore), is ok for
stable stuff. KY, that's the case here, right?

thanks,

greg k-h