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scsi: libsas: notify event PORTE_BROADCAST_RCVD in sas_enable_revalidation()
There are two places queuing the disco event DISCE_REVALIDATE_DOMAIN. One is in sas_porte_broadcast_rcvd() and uses sas_chain_event() to queue the event. The other is in sas_enable_revalidation() and uses sas_queue_event() to queue the event. We have diffrent work queues for event and discovery now, so the DISCE_REVALIDATE_DOMAIN event may be processed in both event queue and discovery queue. Now since we do synchronous event handling, we cannot do it in discovery queue, so have to trigger a fake broadcast event to re-trigger the revalidation from event queue. Signed-off-by: Jason Yan <yanaijie@huawei.com> CC: John Garry <john.garry@huawei.com> CC: Johannes Thumshirn <jthumshirn@suse.de> CC: Ewan Milne <emilne@redhat.com> CC: Christoph Hellwig <hch@lst.de> CC: Tomas Henzl <thenzl@redhat.com> CC: Dan Williams <dan.j.williams@intel.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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1 changed files with 7 additions and 1 deletions
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@ -116,11 +116,17 @@ void sas_enable_revalidation(struct sas_ha_struct *ha)
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struct asd_sas_port *port = ha->sas_port[i];
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const int ev = DISCE_REVALIDATE_DOMAIN;
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struct sas_discovery *d = &port->disc;
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struct asd_sas_phy *sas_phy;
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if (!test_and_clear_bit(ev, &d->pending))
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continue;
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sas_queue_event(ev, &d->disc_work[ev].work, ha);
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if (list_empty(&port->phy_list))
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continue;
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sas_phy = container_of(port->phy_list.next, struct asd_sas_phy,
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port_phy_el);
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ha->notify_port_event(sas_phy, PORTE_BROADCAST_RCVD);
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}
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mutex_unlock(&ha->disco_mutex);
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}
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