Differential D8224 Diff 22071 sys/dev/hyperv/utilities/hv_snapshot.h

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sys/dev/hyperv/utilities/hv_snapshot.h

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				/*-
				* Copyright (c) 2016 Microsoft Corp.
				* All rights reserved.
				*
				* Redistribution and use in source and binary forms, with or without
				* modification, are permitted provided that the following conditions
				* are met:
				* 1. Redistributions of source code must retain the above copyright
				* notice unmodified, this list of conditions, and the following
				* disclaimer.
				* 2. Redistributions in binary form must reproduce the above copyright
				* notice, this list of conditions and the following disclaimer in the
				* documentation and/or other materials provided with the distribution.
				*
				* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
				* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
				* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
				* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
				* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
				* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
				* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
				* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
				* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
				* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
				*
				* $FreeBSD$
				*/

				#ifndef _VSS_H
				#define _VSS_H
				#include <sys/ioccom.h>
				#define FS_VSS_DEV_NAME "hv_fsvss_dev"
				#define APP_VSS_DEV_NAME "hv_appvss_dev"

				#define VSS_DEV(VSS) "/dev/"VSS

				#define VSS_SUCCESS 0x00000000
				#define VSS_FAIL 0x00000001

				enum hv_vss_op_t {
				HV_VSS_NONE = 0,
				HV_VSS_CHECK,
				HV_VSS_FREEZE,
				HV_VSS_THAW,
				HV_VSS_COUNT
				};

				struct hv_vss_opt_msg {
				uint32_t opt; /* operation */
				uint32_t status; /* 0 for success, 1 for error */
				uint64_t msgid; /* an ID used to identify the transaction */
				uint8_t reserved[48]; /* reserved values are all zeroes */
				};
				sepherosa_gmail.comUnsubmitted Not Done Inline Actions Better comment it as: reserved 0. sepherosa_gmail.com: Better comment it as: reserved 0.
				#define IOCHVVSSREAD _IOR('v', 2, struct hv_vss_opt_msg)
				#define IOCHVVSSWRITE _IOW('v', 3, struct hv_vss_opt_msg)
				#endif