I don't think SATA target scanning occupies a huge amount of boot time,
however it will currently force all async scanners to complete before it
scans. The Rolls-Royce solution would be somethinkg akin to the new
scsi_scan_host(), but I don't think that's necessaary. This patch just
acknowledges that async scanning exists and will permit the drive
additions to finish some time after libata has triggered the probe.
Signed-off-by: Matthew Wilcox <matthew@xxxxxx>
Index: ./drivers/scsi/libata-scsi.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/scsi/libata-scsi.c,v
retrieving revision 1.38
diff -u -p -r1.38 libata-scsi.c
--- ./drivers/scsi/libata-scsi.c 19 Apr 2006 04:55:59 -0000 1.38
+++ ./drivers/scsi/libata-scsi.c 13 May 2006 04:56:30 -0000
@@ -2733,16 +2733,19 @@ void ata_scsi_simulate(struct ata_port *
void ata_scsi_scan_host(struct ata_port *ap)
{
struct ata_device *dev;
+ struct async_scan_data *data;
unsigned int i;
if (ap->flags & ATA_FLAG_PORT_DISABLED)
return;
+ data = scsi_prep_async_scan(ap->host);
for (i = 0; i < ATA_MAX_DEVICES; i++) {
dev = &ap->device[i];
if (ata_dev_present(dev))
scsi_scan_target(&ap->host->shost_gendev, 0, i, 0, 0);
}
+ scsi_finish_async_scan(data);
}
-
: 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
