xfs_fs_sb.h

linux得一些常用命令,以及linux环境下的c编程

/*
 * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
 * 
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 * 
 * This program is distributed in the hope that it would be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * 
 * Further, this software is distributed without any warranty that it is
 * free of the rightful claim of any third person regarding infringement
 * or the like.  Any license provided herein, whether implied or
 * otherwise, applies only to this software file.  Patent licenses, if
 * any, provided herein do not apply to combinations of this program with
 * other software, or any other product whatsoever.
 * 
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write the Free Software Foundation, Inc., 59
 * Temple Place - Suite 330, Boston MA 02111-1307, USA.
 * 
 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
 * Mountain View, CA  94043, or:
 * 
 * http://www.sgi.com 
 * 
 * For further information regarding this notice, see: 
 * 
 * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
 */
/*
 *  include/linux/xfs_fs_sb.h
 *
 */

#ifndef _LINUX_XFS_FS_SB
#define _LINUX_XFS_FS_SB

#include <linux/xfs_fs.h>

/*
 * xfs' super-block
 */

struct xfs_sb_info {
	void *s_vfs;	/* pointer to the vfs which points to the bhv */
	void *s_cvp;	/* The fake Vnode that this FS covers */
};

#define LINVFS_GET_VFS(s)	(vfs_t *)((s)->u.xfs_sb.s_vfs)
#define LINVFS_SET_VFS(s, vfsp) ((s)->u.xfs_sb.s_vfs = vfsp)
#define LINVFS_GET_CVP(s)	(vnode_t *)((s)->u.xfs_sb.s_cvp)
#define LINVFS_SET_CVP(s, vp)	((s)->u.xfs_sb.s_cvp = vp)

#endif	/* _LINUX_XFS_FS_SB */