nvme: use driver pdu command for passthrough
All nvme transport drivers preallocate an nvme command for each request. Assume to use that command for nvme_setup_cmd() instead of requiring drivers pass a pointer to it. All nvme drivers must initialize the generic nvme_request 'cmd' to point to the transport's preallocated nvme_command. The generic nvme_request cmd pointer had previously been used only as a temporary copy for passthrough commands. Since it now points to the command that gets dispatched, passthrough commands must directly set it up prior to executing the request. Signed-off-by:Keith Busch <kbusch@kernel.org> Reviewed-by:
Jens Axboe <axboe@kernel.dk> Reviewed-by:
Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by:
Christoph Hellwig <hch@lst.de>
parent
af7fae85
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