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/*
* 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/
*/
#ifndef _LINUX_VNODE_I
#define _LINUX_VNODE_I
#include <linux/config.h>
#include <linux/behavior.h>
/*
* Vnode types (unrelated to on-disk inodes). VNON means no type.
*/
typedef enum vtype {
VNON = 0,
VREG = 1,
VDIR = 2,
VBLK = 3,
VCHR = 4,
VLNK = 5,
VFIFO = 6,
VBAD = 7,
VSOCK = 8
} vtype_t;
/*
* The prefix of a vnode struct is its freelist linkage. The freelist
* header has two pointers so we can insert at either end.
*/
typedef struct vnlist {
struct vnode *vl_next;
struct vnode *vl_prev;
} vnlist_t;
typedef __u64 vnumber_t;
struct inode;
struct pregion;
/*
* Define the type of behavior head used by vnodes.
*/
#define vn_bhv_head_t bhv_head_t
/*
* MP locking protocols:
* v_flag, v_count VN_LOCK/VN_UNLOCK
* v_vfsp VN_LOCK/VN_UNLOCK
* v_type read-only or fs-dependent
* v_list, v_hashp, v_hashn freelist lock
*/
typedef struct vnode {
__u32 v_flag; /* vnode flags (see below) */
enum vtype v_type; /* vnode type */
struct vfs *v_vfsp; /* ptr to containing VFS*/
vnumber_t v_number; /* in-core vnode number */
vn_bhv_head_t v_bh; /* behavior head */
spinlock_t v_lock; /* don't use VLOCK on Linux */
struct inode *v_inode; /* linux inode */
#ifdef CONFIG_XFS_VNODE_TRACING
struct ktrace *v_trace; /* trace header structure */
#endif /* CONFIG_XFS_VNODE_TRACING */
} vnode_t;
#endif /* _LINUX_VNODE_I */
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