On Tue, Apr 02, 2019 at 09:56:10AM +0800, Ming Lei wrote:
> NVMe target only accepts single-page sg list, either file or block
> device backed target code follows this assumption.
>
> However, loop target is one exception, given the sg list is from
> the host queue directly.
>
> This patch sets loop queue's segment boundary mask as PAGE_SIZE - 1
> for following NVMe target assumption.
>
> Multi-page bvec has been merged to v5.1-rc1, so commit 02db99548d36
> ("nvmet: fix building bvec from sg list") can fix the current issue
> simply without needing to limit the segment size for nvme-loop.
I don't understand, 02db99548d36 does not work for older kernels, so
because of that, you need/want this patch to be applied? If so, what
specific kernel versions do you want this to go to?
thanks,
greg k-h
