xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

scsi: disable automatic target scan

Browse Source 
On larger installations it is useful to disable automatic LUN scanning,
and only add the required LUNs via udev rules.  This can speed up bootup
dramatically.

This patch introduces a new scan module parameter value 'manual', which
works like 'none', but can be overridden by setting the 'rescan' value
from scsi_scan_target to 'SCSI_SCAN_MANUAL'.  And it updates all
relevant callers to set the 'rescan' value to 'SCSI_SCAN_MANUAL' if
invoked via the 'scan' option in sysfs.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Tested-by: Laurence Oberman <loberman@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Hannes Reinecke
2016-03-17 08:39:45 +01:00
committed by Martin K. Petersen
parent 216fad9138
commit 1d64508810
12 changed files with 60 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/scsi/scsi_proc.c
View File

@@ -251,7 +251,8 @@ static int scsi_add_single_device(uint host, uint channel, uint id, uint lun)
if (shost->transportt->user_scan)
error = shost->transportt->user_scan(shost, channel, id, lun);
else
error = scsi_scan_host_selected(shost, channel, id, lun, 1);
error = scsi_scan_host_selected(shost, channel, id, lun,
SCSI_SCAN_MANUAL);
scsi_host_put(shost);
return error;
}