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authorHannes Reinecke <hare@suse.de>2016-03-17 08:39:45 +0100
committerMartin K. Petersen <martin.petersen@oracle.com>2016-04-11 16:57:09 -0400
commit1d64508810d8d15867251c75a68d7250278ce2bd (patch)
treea7f43abdbf163aad5545eeea1d3b840c4adb2954 /drivers/message/fusion
parent216fad91387aab7c9e69fe0854d843f012968748 (diff)
downloadlinux-1d64508810d8d15867251c75a68d7250278ce2bd.tar.gz
scsi: disable automatic target scan
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>
Diffstat (limited to 'drivers/message/fusion')
-rw-r--r--drivers/message/fusion/mptspi.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/message/fusion/mptspi.c b/drivers/message/fusion/mptspi.c
index 613231c16194..031e088edb5e 100644
--- a/drivers/message/fusion/mptspi.c
+++ b/drivers/message/fusion/mptspi.c
@@ -1150,7 +1150,7 @@ static void mpt_work_wrapper(struct work_struct *work)
 	}
 	shost_printk(KERN_INFO, shost, MYIOC_s_FMT
 	    "Integrated RAID detects new device %d\n", ioc->name, disk);
-	scsi_scan_target(&ioc->sh->shost_gendev, 1, disk, 0, 1);
+	scsi_scan_target(&ioc->sh->shost_gendev, 1, disk, 0, SCSI_SCAN_RESCAN);
 }