On 07/04/2014 04:44 PM, loody wrote: > > 2. at the end of sd.c -> sd_probe, why we call async_schedule_domain like below > async_schedule_domain(sd_probe_async, sdkp, &scsi_sd_probe_domain); > to finish scsi device initialization? > Couldn't we put what sd_probe_async directly in sd_probe? > is there any benefit to do so? A possible explanation may be that sd_probe_async() calls sd_spinup_disk(), this function spins up the drive and may block for some seconds, so it is better to do that asynchronously. Regards, Maurizio Lombardi -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
