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Commit 92ae4ebd authored by Olaf Hering's avatar Olaf Hering Committed by Greg Kroah-Hartman
Browse files

staging: hv: storvsc: ignore SET_WINDOW scsi command 



Some commands sent by smartd will offline the device.
With this change applied, smartd sill not monitor the device anymore.

Signed-off-by: default avatarOlaf Hering <olaf@aepfle.de>
Acked-by: default avatarK. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent e2bb6537

drivers/staging/hv/storvsc_drv.c

+20 −0
Original line number Diff line number Diff line
@@ -1122,6 +1122,22 @@ static void storvsc_command_completion(struct hv_storvsc_request *request) 
	kmem_cache_free(host_dev->request_pool, cmd_request);

}



static bool storvsc_check_scsi_cmd(struct scsi_cmnd *scmnd)

{

	bool allowed = true;

	u8 scsi_op = scmnd->cmnd[0];



	switch (scsi_op) {

		/* smartd sends this command, which will offline the device */

		case SET_WINDOW:

			scmnd->result = DID_ERROR << 16;

			allowed = false;

			break;

		default:

			break;

	}

	return allowed;

}



/*

 * storvsc_queuecommand - Initiate command processing
@@ -1141,6 +1157,10 @@ static int storvsc_queuecommand_lck(struct scsi_cmnd *scmnd, 
	unsigned int sg_count = 0;

	struct vmscsi_request *vm_srb;



	if (storvsc_check_scsi_cmd(scmnd) == false) {

		done(scmnd);

		return 0;

	}



	/* If retrying, no need to prep the cmd */

	if (scmnd->host_scribble) {