On Tue, Apr 05, 2011 at 05:43:55PM -0400, Matthew Wilcox wrote: > > We can eliminate the use of the scsi command serial_number, as the race > that the driver is checking for cannot happen. > > Then the driver no longer needs to use the DEF_SCSI_QCMD() macro and no > longer acquires the host_lock. This improves performance substantially > on high-IOPS workloads. Looks fine. Note that this somehow clashes with my patch to simply remove the serial_number check from mpt2sas. We could just drop my smaller patch if this one gets in in a timely fashion. -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
