[PATCH] NVMe: Fail SCSI->NVMe translation for UNMAP when anchor is set

[Mayes, Barrett N]

> On the one hand, it says that ANC_SUP shall be set to 0.  

LSI proposed the following and asked for feedback by June 9.  I don't recall seeing any comments to this on the public reflector.

ANC_SUC
Shall be set to 0, to indicate that setting the ANCHOR bit in UNMAP is not supported if the namespace is not resource or thin provisioned.
Shall be set to 1, to indicate that setting the ANCHOR bit in UNMAP is supported if the namespace is resource provisioned. May be set to 1 if the namespace is thin provisioned.