[PATCH v2] nvme: implement the DEAC bit for the Write Zeroes command

[Martin K. Petersen]

Christoph,

> While the specification allows devices to either deallocate data or to
> actually write zeroes on any Write Zeroes command, many SSDs only do
> the sensible thing and deallocate data when the DEAC bit is specific.
> Set it when it is suppored and the caller doesn't explicitly opt out

supported

> of deallocation.

Looks good.

Reviewed-by: Martin K. Petersen <martin.petersen at oracle.com>

-- 
Martin K. Petersen	Oracle Linux Engineering