On Thu, 2010-09-16 at 18:29 -0700, Tim Chen wrote: > On Thu, 2010-09-16 at 15:35 -0700, Nicholas A. Bellinger wrote: > > From: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx> > > > > Greetings all, > > > > This series contains the first round of a whole-sale conversion for droping > > struct Scsi_Host->host_lock around struct Scsi_Host->queuecommand() within > > scsi_dispatch_cmd(). So with this first patch the only part of scsi_dispatch_cmd() > > that is protected by host_lock is scsi_cmd_get_serial)_. > > > > Maybe we can change the host->cmd_serial_number to atomic and totally > avoid the need to take host_lock. Hmmmm good point, then we would also need an atomic_t for signaling (shost_state == SHOST_DEL) in scsi_dispatch_cmd() to be able to completly drop host_lock usage within scsi_dispatch_cmd(). I can take a look at doing this specific part, if you would be willing to have a look at the host->cmd_serial_number conversion piece. ;) Thanks Tim! --nab -- 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
