On Tue, 2009-12-01 at 15:45 -0600, Michael Reed wrote: > Prevent delays and hangs due to sd_remove() waiting for the completion of > async threads executing sd_probe_async of disks on unrelated host adapters. > This patch executes every sd_probe_async in its own async domain allowing > sd_remove() to wait for just the completion of the async thread associated with > the scsi_disk being removed. This patch was thought of a while ago. Unfortunately, some of the unrelated threads we end up waiting on are libata ones. you confine sd to only its own probes, we end up unsynchronised with respect to libata probes and we might cause ordering problems amongst the ata devices. James -- 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
