mpt3sas: Remove use of DEF_SCSI_QCMD
mpt3sas: Remove use of DEF_SCSI_QCMD

Removing the host_lock from the I/O submission path gives a huge
scalability improvement.

Signed-off-by: Matthew Wilcox <ed1245e46949b7b8f2bca25d41520ebc8aeefcf8@intel.com>
Reviewed-by: Nicholas Bellinger <978acd1567d5598152161fdf8bf3ca568f950c9b@linux-iscsi.org>
Reviewed-by: Praveen Krishnamoorthy <4ce889eab45d6136cabda8e76fed74e68d3f08fc@lsi.com>
Acked-by: Sreekanth Reddy <5d8ef29afd278d20bb09eeeb2ee4a503e91e9208@lsi.com>
Signed-off-by: Christoph Hellwig <923f7720577207a44b32e59bbfbea59d27f1ae8e@lst.de>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs