Re: [PATCH] storvsc: do not assume SG list is continuous when doing bounce buffers (for 4.1 stable only)
From: Martin K. Petersen
Date: Wed Aug 23 2017 - 11:22:46 EST
Christoph,
> Ok. If the stable maintainers are ok with your small fix
> I'm not going to complain too loudly. But I'm always worried about
> stable trees divering too much from mainline.
The seemingly innocuous transition from SG_GAPS to virt boundary has
caused several data corruption regressions in the distro kernels. So has
the corresponding conversion of storvsc.
As a result, getting the current upstream code into 4.1 would mean
backporting and testing a significant amount of both block layer and
driver code. I don't think it's worth the risk. This patch is simple and
the path of least resistance.
Acked-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
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Martin K. Petersen Oracle Linux Engineering