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/* SPDX-License-Identifier: GPL-2.0 */

/*
 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
 * Use is subject to license terms.
 *
 * Copyright (c) 2014, Intel Corporation.
 */

/*
 * This file is part of Lustre, http://www.lustre.org/
 *
 * lustre VFS/process permission interface
 */

#ifndef __LVFS_H__
#define __LVFS_H__

#include <linux/dcache.h>
#include <linux/err.h>
#include <linux/fs.h>
#include <linux/mutex.h>
#include <linux/namei.h>

#define OBD_RUN_CTXT_MAGIC	0xC0FFEEAA
#define OBD_CTXT_DEBUG		/* development-only debugging */

struct dt_device;

struct lvfs_run_ctxt {
	struct vfsmount		*pwdmnt;
	struct dentry		*pwd;
	int			 umask;
	struct dt_device	*dt;
#ifdef OBD_CTXT_DEBUG
	unsigned int		 magic;
#endif
};

static inline void OBD_SET_CTXT_MAGIC(struct lvfs_run_ctxt *ctxt)
{
#ifdef OBD_CTXT_DEBUG
	ctxt->magic = OBD_RUN_CTXT_MAGIC;
#endif
}

/* ptlrpc_sec_ctx.c */
void push_ctxt(struct lvfs_run_ctxt *save, struct lvfs_run_ctxt *new_ctx);
void pop_ctxt(struct lvfs_run_ctxt *saved, struct lvfs_run_ctxt *new_ctx);

#endif