Switch to new workqueue interface alloc_workqueue().  These are
identity conversions.
Signed-off-by: NTejun Heo <tj@kernel.org>
Acked-by: NMadhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Cc: Jayamohan Kallickal <jayamohank@serverengines.com>
Cc: Andrew Vasquez <andrew.vasquez@qlogic.com>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: linux-scsi@vger.kernel.org