NVMe write protection support

[Christoph Hellwig]

On Mon, Aug 01, 2022 at 08:36:12AM +0000, Gilles Buloz wrote:
> Dear developers,
> In case an NVMe module has a write protection feature,

Do you mean the "Namespace Write Protection Config", Feature Identifier
84h?  In that case you need to set bit 0 in the NSATTR field in the
Identify Namespace data structure(s) and the kernel will mark the
namespace read only.

If you mean something else, please clarify.