[PATCH 2/4] nvme-pci: use mapped entries for sgl decision

[Chaitanya Kulkarni]

On 1/5/23 12:28, Keith Busch wrote:
> From: Keith Busch <kbusch at kernel.org>
> 
> The driver uses the dma entries for setting up its command's SGL/PRP
> lists. The dma mapping might have fewer entries than the physical
> segments, so check the dma mapped count to determine which nvme data
> layout method is more optimal.
> 
> Signed-off-by: Keith Busch <kbusch at kernel.org>
> Reviewed-by: Sagi Grimberg <sagi at grimberg.me>
> ---

I vaguely remember a similar bug in this area where this actually happened

Reviewed-by: Chaitanya Kulkarni <kch at nvidia.com>

-ck