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[dm-devel] [RESEND] [PATCH]: scsi_dh: create sysfs file, dh_state for SCSI devices even if they are not in the internal lists

Hi James,

This patch was sent to the list long back and was Acked by Hannes on Aug

Please consider for inclusion. Let me know if you see any issues with
the patch.


Create the sysfs file, dh_state even if the new SCSI device is not
in the any of the device handler's internal lists.

Signed-Off-by: Chandra Seetharaman <sekharan us ibm com>
Acked-by: Hannes Reinecke <hare suse de>
 drivers/scsi/device_handler/scsi_dh.c |   11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

Index: linux-2.6.31/drivers/scsi/device_handler/scsi_dh.c
--- linux-2.6.31.orig/drivers/scsi/device_handler/scsi_dh.c
+++ linux-2.6.31/drivers/scsi/device_handler/scsi_dh.c
@@ -292,18 +292,15 @@ static int scsi_dh_notifier(struct notif
 	sdev = to_scsi_device(dev);
 	if (action == BUS_NOTIFY_ADD_DEVICE) {
+		err = device_create_file(dev, &scsi_dh_state_attr);
+		/* don't care about err */
 		devinfo = device_handler_match(NULL, sdev);
-		if (!devinfo)
-			goto out;
-		err = scsi_dh_handler_attach(sdev, devinfo);
-		if (!err)
-			err = device_create_file(dev, &scsi_dh_state_attr);
+		if (devinfo)
+			err = scsi_dh_handler_attach(sdev, devinfo);
 	} else if (action == BUS_NOTIFY_DEL_DEVICE) {
 		device_remove_file(dev, &scsi_dh_state_attr);
 		scsi_dh_handler_detach(sdev, NULL);
 	return err;

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