On Sun, 7 July 2013 01:24:44 +0800, vaughan wrote: > > Do you agree that I use a per device spin_lock 'sfd_lock' to protect > sfds list and leave sg_index_lock > only protect the global sg device lookup? I think it's reasonable > for concurrency. That bit looks fine to me. I don't think it matters much, but sure, why not! Jörn -- One of the painful things about our time is that those who feel certainty are stupid, and those with any imagination and understanding are filled with doubt and indecision. -- Bertrand Russell -- 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