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alua_rtpg(sdev, pg); >>>> - spin_lock_irqsave(&pg->lock, flags); >>>> + err = alua_rtpg(sdev); >>>> + spin_lock_irqsave(&h->lock, flags); >>>> - /* If RTPG failed on the current device, try using another */ >>>> - if (err == SCSI_DH_RES_TEMP_UNAVAIL && >>>> - (prev_sdev = alua_rtpg_select_sdev(pg))) >>>> - err = SCSI_DH_IMM_RETRY; >>> Previously, if the rtpg failed on a device, another device would be >>> tried, and the unusable device's alua state would get updated, along >>> with all the other device's states. >> Where specifically are you referring to here please? > The removed code above here calls alua_rtpg_select_sdev() to select a > new device to retry the rtpg on, and returns with SCSI_DH_IMM_RETRY, to > retrigger the rtpg on that device. If the rtpg completed on any device, > it would update the state on all the devices. But if we are depending > each device issuing its own rtp to update its state, what happens to > the devices that can't complete the rtpg? I assume the correct answer is > to give them some failed state. > Yes, I am relying for each scsi device to issue the RTPG. If they cannot each run it, then they should indeed give failed state and be offlined. Thanks, John