On 07/14/2015 10:00 PM, Himanshu Madhani wrote: > From: Alexei Potashnik <alexei@xxxxxxxxxxxxxxx> > > RSCN processing in qla2xxx driver can run in parallel with ELS/IO > processing. As such the decision to remove disappeared fc port's > session could be stale, because a new login sequence has occurred > since and created a brand new session. > > Previous mechanism of dealing with this by delaying deletion request > was prone to erroneous deletions if the event that was supposed to > cancel the deletion never arrived or has been delayed in processing. > > New mechanism relies on a time-like generation counter to serialize > RSCN updates relative to ELS/IO updates. > > Cc: <stable@xxxxxxxxxxxxxxx> > Signed-off-by: Alexei Potashnik <alexei@xxxxxxxxxxxxxxx> > Signed-off-by: Himanshu Madhani <himanshu.madhani@xxxxxxxxxx> > --- Reviewed-by: Hannes Reinecke <hare@xxxxxxxx> Cheers, Hannes -- Dr. Hannes Reinecke zSeries & Storage hare@xxxxxxx +49 911 74053 688 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton HRB 21284 (AG Nürnberg) -- 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
