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/*
* Copyright (c) 2000-2003 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/
*
* Portions Copyright (c) 1989, 1993
* The Regents of the University of California. 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, 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.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
*/
#ifndef __XFS_VNODE_H__
#define __XFS_VNODE_H__
#include <sys/vnode.h>
#include <sys/namei.h>
struct xfs_iomap;
typedef struct componentname vname_t;
typedef bhv_head_t vn_bhv_head_t;
/*
* MP locking protocols:
* v_flag, v_vfsp VN_LOCK/VN_UNLOCK
* v_type read-only or fs-dependent
*/
typedef struct xfs_vnode {
__u32 v_flag; /* vnode flags (see below) */
struct xfs_vfs *v_vfsp; /* ptr to containing VFS */
xfs_ino_t v_number; /* in-core vnode number */
vn_bhv_head_t v_bh; /* behavior head */
struct vnode *v_vnode; /* FreeBSD vnode */
struct xfs_inode *v_inode; /* XFS inode */
#ifdef XFS_VNODE_TRACE
struct ktrace *v_trace; /* trace header structure */
#endif
} xfs_vnode_t;
/* vnode types */
#define VN_ISLNK(vp) ((vp)->v_vnode->v_type & VLNK)
#define VN_ISREG(vp) ((vp)->v_vnode->v_type & VREG)
#define VN_ISDIR(vp) ((vp)->v_vnode->v_type & VDIR)
#define VN_ISCHR(vp) ((vp)->v_vnode->v_type & VCHR)
#define VN_ISBLK(vp) ((vp)->v_vnode->v_type & VBLK)
#define VN_BAD(vp) ((vp)->v_vnode->v_type & VBAD)
#define v_fbhv v_bh.bh_first /* first behavior */
#define v_fops v_bh.bh_first->bd_ops /* first behavior ops */
#define VNODE_POSITION_BASE BHV_POSITION_BASE /* chain bottom */
#define VNODE_POSITION_TOP BHV_POSITION_TOP /* chain top */
#define VNODE_POSITION_INVALID BHV_POSITION_INVALID /* invalid pos. num */
typedef enum {
VN_BHV_UNKNOWN, /* not specified */
VN_BHV_XFS, /* xfs */
VN_BHV_DM, /* data migration */
VN_BHV_QM, /* quota manager */
VN_BHV_IO, /* IO path */
VN_BHV_END /* housekeeping end-of-range */
} vn_bhv_t;
#define VNODE_POSITION_XFS (VNODE_POSITION_BASE)
#define VNODE_POSITION_DM (VNODE_POSITION_BASE+10)
#define VNODE_POSITION_QM (VNODE_POSITION_BASE+20)
#define VNODE_POSITION_IO (VNODE_POSITION_BASE+30)
#define VPTOXFSVP(vp) ((struct xfs_vnode *)(vp)->v_data)
/*
* Macros for dealing with the behavior descriptor inside of the vnode.
*/
#define BHV_TO_VNODE(bdp) ((xfs_vnode_t *)BHV_VOBJ(bdp))
#define BHV_TO_VNODE_NULL(bdp) ((xfs_vnode_t *)BHV_VOBJNULL(bdp))
#define VN_BHV_HEAD(vp) ((bhv_head_t *)(&((vp)->v_bh)))
#define vn_bhv_head_init(bhp,name) bhv_head_init(bhp,name)
#define vn_bhv_remove(bhp,bdp) bhv_remove(bhp,bdp)
#define vn_bhv_lookup(bhp,ops) bhv_lookup(bhp,ops)
#define vn_bhv_lookup_unlocked(bhp,ops) bhv_lookup_unlocked(bhp,ops)
/*
* Vnode to Linux inode mapping.
*/
#define LINVFS_GET_VP(inode) ((xfs_vnode_t *)NULL)
#define LINVFS_GET_IP(vp) ((xfs_inode_t *)NULL)
/*
* Vnode flags.
*/
#define VINACT 0x1 /* vnode is being inactivated */
#define VRECLM 0x2 /* vnode is being reclaimed */
#define VWAIT 0x4 /* waiting for VINACT/VRECLM to end */
#define VMODIFIED 0x8 /* XFS inode state possibly differs */
/* to the Linux inode state. */
/*
* Values for the VOP_RWLOCK and VOP_RWUNLOCK flags parameter.
*/
typedef enum vrwlock {
VRWLOCK_NONE,
VRWLOCK_READ,
VRWLOCK_WRITE,
VRWLOCK_WRITE_DIRECT,
VRWLOCK_TRY_READ,
VRWLOCK_TRY_WRITE
} vrwlock_t;
/*
* Return values for VOP_INACTIVE. A return value of
* VN_INACTIVE_NOCACHE implies that the file system behavior
* has disassociated its state and bhv_desc_t from the vnode.
*/
#define VN_INACTIVE_CACHE 0
#define VN_INACTIVE_NOCACHE 1
/*
* Values for the cmd code given to VOP_VNODE_CHANGE.
*/
typedef enum vchange {
VCHANGE_FLAGS_FRLOCKS = 0,
VCHANGE_FLAGS_ENF_LOCKING = 1,
VCHANGE_FLAGS_TRUNCATED = 2,
VCHANGE_FLAGS_PAGE_DIRTY = 3,
VCHANGE_FLAGS_IOEXCL_COUNT = 4
} vchange_t;
struct file_lock;
struct xfs_iomap_s;
struct xfs_vattr;
struct attrlist_cursor_kern;
typedef int (*xfs_vop_open_t)(bhv_desc_t *, struct cred *);
typedef ssize_t (*xfs_vop_read_t)(bhv_desc_t *, uio_t *, int, struct cred *);
typedef ssize_t (*xfs_vop_write_t)(bhv_desc_t *, uio_t *, int, struct cred *);
typedef int (*xfs_vop_ioctl_t)(bhv_desc_t *, struct inode *, struct file *,
int, u_long, void *);
typedef int (*xfs_vop_getattr_t)(bhv_desc_t *, struct xfs_vattr *, int,
struct cred *);
typedef int (*xfs_vop_setattr_t)(bhv_desc_t *, struct xfs_vattr *, int,
struct cred *);
typedef int (*xfs_vop_access_t)(bhv_desc_t *, int, struct cred *);
typedef int (*xfs_vop_lookup_t)(bhv_desc_t *, vname_t *, xfs_vnode_t **,
int, xfs_vnode_t *, struct cred *);
typedef int (*xfs_vop_create_t)(bhv_desc_t *, vname_t *, struct xfs_vattr *,
xfs_vnode_t **, struct cred *);
typedef int (*xfs_vop_remove_t)(bhv_desc_t *, bhv_desc_t *, vname_t *, struct cred *);
typedef int (*xfs_vop_link_t)(bhv_desc_t *, xfs_vnode_t *, vname_t *,
struct cred *);
typedef int (*xfs_vop_rename_t)(bhv_desc_t *, vname_t *, xfs_vnode_t *, vname_t *,
struct cred *);
typedef int (*xfs_vop_mkdir_t)(bhv_desc_t *, vname_t *, struct xfs_vattr *,
xfs_vnode_t **, struct cred *);
typedef int (*xfs_vop_rmdir_t)(bhv_desc_t *, vname_t *, struct cred *);
typedef int (*xfs_vop_readdir_t)(bhv_desc_t *, struct uio *, struct cred *,
int *);
typedef int (*xfs_vop_symlink_t)(bhv_desc_t *, vname_t *, struct xfs_vattr *,
char *, xfs_vnode_t **, struct cred *);
typedef int (*xfs_vop_readlink_t)(bhv_desc_t *, struct uio *, int,
struct cred *);
typedef int (*xfs_vop_fsync_t)(bhv_desc_t *, int, struct cred *,
xfs_off_t, xfs_off_t);
typedef int (*xfs_vop_inactive_t)(bhv_desc_t *, struct cred *);
typedef int (*xfs_vop_fid2_t)(bhv_desc_t *, struct fid *);
typedef int (*xfs_vop_release_t)(bhv_desc_t *);
typedef int (*xfs_vop_rwlock_t)(bhv_desc_t *, vrwlock_t);
typedef void (*xfs_vop_rwunlock_t)(bhv_desc_t *, vrwlock_t);
typedef int (*xfs_vop_frlock_t)(bhv_desc_t *, int, struct file_lock *,int,
xfs_off_t, struct cred *);
typedef int (*xfs_vop_bmap_t)(bhv_desc_t *, xfs_off_t, ssize_t, int,
struct xfs_iomap *, int *);
typedef int (*xfs_vop_reclaim_t)(bhv_desc_t *);
typedef int (*xfs_vop_attr_get_t)(bhv_desc_t *, const char *, char *, int *, int,
struct cred *);
typedef int (*xfs_vop_attr_set_t)(bhv_desc_t *, const char *, char *, int, int,
struct cred *);
typedef int (*xfs_vop_attr_remove_t)(bhv_desc_t *, const char *, int, struct cred *);
typedef int (*xfs_vop_attr_list_t)(bhv_desc_t *, char *, int, int,
struct attrlist_cursor_kern *, struct cred *);
typedef void (*xfs_vop_link_removed_t)(bhv_desc_t *, xfs_vnode_t *, int);
typedef void (*xfs_vop_vnode_change_t)(bhv_desc_t *, vchange_t, __psint_t);
typedef void (*xfs_vop_ptossvp_t)(bhv_desc_t *, xfs_off_t, xfs_off_t, int);
typedef void (*xfs_vop_pflushinvalvp_t)(bhv_desc_t *, xfs_off_t, xfs_off_t, int);
typedef int (*xfs_vop_pflushvp_t)(bhv_desc_t *, xfs_off_t, xfs_off_t,
uint64_t, int);
typedef int (*xfs_vop_iflush_t)(bhv_desc_t *, int);
typedef struct xfs_vnodeops {
bhv_position_t vn_position; /* position within behavior chain */
xfs_vop_open_t vop_open;
xfs_vop_read_t vop_read;
xfs_vop_write_t vop_write;
xfs_vop_ioctl_t vop_ioctl;
xfs_vop_getattr_t vop_getattr;
xfs_vop_setattr_t vop_setattr;
xfs_vop_access_t vop_access;
xfs_vop_lookup_t vop_lookup;
xfs_vop_create_t vop_create;
xfs_vop_remove_t vop_remove;
xfs_vop_link_t vop_link;
xfs_vop_rename_t vop_rename;
xfs_vop_mkdir_t vop_mkdir;
xfs_vop_rmdir_t vop_rmdir;
xfs_vop_readdir_t vop_readdir;
xfs_vop_symlink_t vop_symlink;
xfs_vop_readlink_t vop_readlink;
xfs_vop_fsync_t vop_fsync;
xfs_vop_inactive_t vop_inactive;
xfs_vop_fid2_t vop_fid2;
xfs_vop_rwlock_t vop_rwlock;
xfs_vop_rwunlock_t vop_rwunlock;
xfs_vop_frlock_t vop_frlock;
xfs_vop_bmap_t vop_bmap;
xfs_vop_reclaim_t vop_reclaim;
xfs_vop_attr_get_t vop_attr_get;
xfs_vop_attr_set_t vop_attr_set;
xfs_vop_attr_remove_t vop_attr_remove;
xfs_vop_attr_list_t vop_attr_list;
xfs_vop_link_removed_t vop_link_removed;
xfs_vop_vnode_change_t vop_vnode_change;
xfs_vop_ptossvp_t vop_tosspages;
xfs_vop_pflushinvalvp_t vop_flushinval_pages;
xfs_vop_pflushvp_t vop_flush_pages;
xfs_vop_release_t vop_release;
xfs_vop_iflush_t vop_iflush;
} xfs_vnodeops_t;
/*
* VOP's.
*/
#define _VOP_(op, vp) (*((xfs_vnodeops_t *)(vp)->v_fops)->op)
#define XVOP_READ(vp,uio,ioflags,cr,rv) \
rv = _VOP_(vop_read, vp)((vp)->v_fbhv,uio,ioflags,cr)
#define XVOP_WRITE(vp,file,uio,ioflags,cr,rv) \
rv = _VOP_(vop_write, vp)((vp)->v_fbhv,uio,ioflags,cr)
#define XVOP_BMAP(vp,of,sz,rw,b,n,rv) \
rv = _VOP_(vop_bmap, vp)((vp)->v_fbhv,of,sz,rw,b,n)
#define XVOP_OPEN(vp, cr, rv) \
rv = _VOP_(vop_open, vp)((vp)->v_fbhv, cr)
#define XVOP_GETATTR(vp, vap, f, cr, rv) \
rv = _VOP_(vop_getattr, vp)((vp)->v_fbhv, vap, f, cr)
#define XVOP_SETATTR(vp, vap, f, cr, rv) \
rv = _VOP_(vop_setattr, vp)((vp)->v_fbhv, vap, f, cr)
#define XVOP_ACCESS(vp, accmode, cr, rv) \
rv = _VOP_(vop_access, vp)((vp)->v_fbhv, accmode, cr)
#define XVOP_LOOKUP(vp,d,vpp,f,rdir,cr,rv) \
rv = _VOP_(vop_lookup, vp)((vp)->v_fbhv,d,vpp,f,rdir,cr)
#define XVOP_CREATE(dvp,d,vap,vpp,cr,rv) \
rv = _VOP_(vop_create, dvp)((dvp)->v_fbhv,d,vap,vpp,cr)
#define XVOP_REMOVE(dvp,d,cr,rv) \
rv = _VOP_(vop_remove, dvp)((dvp)->v_fbhv,d,cr)
#define XVOP_LINK(tdvp,fvp,d,cr,rv) \
rv = _VOP_(vop_link, tdvp)((tdvp)->v_fbhv,fvp,d,cr)
#define XVOP_RENAME(fvp,fnm,tdvp,tnm,cr,rv) \
rv = _VOP_(vop_rename, fvp)((fvp)->v_fbhv,fnm,tdvp,tnm,cr)
#define XVOP_MKDIR(dp,d,vap,vpp,cr,rv) \
rv = _VOP_(vop_mkdir, dp)((dp)->v_fbhv,d,vap,vpp,cr)
#define XVOP_RMDIR(dp,d,cr,rv) \
rv = _VOP_(vop_rmdir, dp)((dp)->v_fbhv,d,cr)
#define XVOP_READDIR(vp,uiop,cr,eofp,rv) \
rv = _VOP_(vop_readdir, vp)((vp)->v_fbhv,uiop,cr,eofp)
#define XVOP_SYMLINK(dvp,d,vap,tnm,vpp,cr,rv) \
rv = _VOP_(vop_symlink, dvp) ((dvp)->v_fbhv,d,vap,tnm,vpp,cr)
#define XVOP_READLINK(vp,uiop,fl,cr,rv) \
rv = _VOP_(vop_readlink, vp)((vp)->v_fbhv,uiop,fl,cr)
#define XVOP_FSYNC(vp,f,cr,b,e,rv) \
rv = _VOP_(vop_fsync, vp)((vp)->v_fbhv,f,cr,b,e)
#define XVOP_INACTIVE(vp, cr, rv) \
rv = _VOP_(vop_inactive, vp)((vp)->v_fbhv, cr)
#define XVOP_RELEASE(vp, rv) \
rv = _VOP_(vop_release, vp)((vp)->v_fbhv)
#define XVOP_FID2(vp, fidp, rv) \
rv = _VOP_(vop_fid2, vp)((vp)->v_fbhv, fidp)
#define XVOP_RWLOCK(vp,i) \
(void)_VOP_(vop_rwlock, vp)((vp)->v_fbhv, i)
#define XVOP_RWLOCK_TRY(vp,i) \
_VOP_(vop_rwlock, vp)((vp)->v_fbhv, i)
#define XVOP_RWUNLOCK(vp,i) \
(void)_VOP_(vop_rwunlock, vp)((vp)->v_fbhv, i)
#define XVOP_FRLOCK(vp,c,fl,flags,offset,fr,rv) \
rv = _VOP_(vop_frlock, vp)((vp)->v_fbhv,c,fl,flags,offset,fr)
#define XVOP_RECLAIM(vp, rv) \
rv = _VOP_(vop_reclaim, vp)((vp)->v_fbhv)
#define XVOP_ATTR_GET(vp, name, val, vallenp, fl, cred, rv) \
rv = _VOP_(vop_attr_get, vp)((vp)->v_fbhv,name,val,vallenp,fl,cred)
#define XVOP_ATTR_SET(vp, name, val, vallen, fl, cred, rv) \
rv = _VOP_(vop_attr_set, vp)((vp)->v_fbhv,name,val,vallen,fl,cred)
#define XVOP_ATTR_REMOVE(vp, name, flags, cred, rv) \
rv = _VOP_(vop_attr_remove, vp)((vp)->v_fbhv,name,flags,cred)
#define XVOP_ATTR_LIST(vp, buf, buflen, fl, cursor, cred, rv) \
rv = _VOP_(vop_attr_list, vp)((vp)->v_fbhv,buf,buflen,fl,cursor,cred)
#define XVOP_LINK_REMOVED(vp, dvp, linkzero) \
(void)_VOP_(vop_link_removed, vp)((vp)->v_fbhv, dvp, linkzero)
#define XVOP_VNODE_CHANGE(vp, cmd, val) \
(void)_VOP_(vop_vnode_change, vp)((vp)->v_fbhv,cmd,val)
/*
* These are page cache functions that now go thru VOPs.
* 'last' parameter is unused and left in for IRIX compatibility
*/
#define XVOP_TOSS_PAGES(vp, first, last, fiopt) \
_VOP_(vop_tosspages, vp)((vp)->v_fbhv,first, last, fiopt)
/*
* 'last' parameter is unused and left in for IRIX compatibility
*/
#define XVOP_FLUSHINVAL_PAGES(vp, first, last, fiopt) \
_VOP_(vop_flushinval_pages, vp)((vp)->v_fbhv,first,last,fiopt)
/*
* 'last' parameter is unused and left in for IRIX compatibility
*/
#define XVOP_FLUSH_PAGES(vp, first, last, flags, fiopt, rv) \
rv = _VOP_(vop_flush_pages, vp)((vp)->v_fbhv,first,last,flags,fiopt)
#define XVOP_IOCTL(vp, inode, filp, fl, cmd, arg, rv) \
rv = _VOP_(vop_ioctl, vp)((vp)->v_fbhv,inode,filp,fl,cmd,arg)
#define XVOP_IFLUSH(vp, flags, rv) \
rv = _VOP_(vop_iflush, vp)((vp)->v_fbhv, flags)
/*
* Flags for read/write calls - select values from FreeBSD IO_ flags
* or non-conflicting bits.
*/
#define IO_ISDIRECT IO_DIRECT /* bypass page cache */
#define IO_INVIS 0x02000 /* don't update inode timestamps */
/* #define IO_ISLOCKED 0x04000 don't do inode locking, strictly a CXFS thing */
/*
* Flags for VOP_IFLUSH call
*/
#define FLUSH_SYNC 1 /* wait for flush to complete */
#define FLUSH_INODE 2 /* flush the inode itself */
#define FLUSH_LOG 4 /* force the last log entry for
* this inode out to disk */
/*
* Flush/Invalidate options for VOP_TOSS_PAGES, VOP_FLUSHINVAL_PAGES and
* VOP_FLUSH_PAGES.
*/
#define FI_NONE 0 /* none */
#define FI_REMAPF 1 /* Do a remapf prior to the operation */
#define FI_REMAPF_LOCKED 2 /* Do a remapf prior to the operation.
Prevent VM access to the pages until
the operation completes. */
/*
* Vnode attributes. va_mask indicates those attributes the caller
* wants to set or extract.
*/
typedef struct xfs_vattr {
int va_mask; /* bit-mask of attributes present */
mode_t va_mode; /* file access mode and type */
nlink_t va_nlink; /* number of references to file */
uid_t va_uid; /* owner user id */
gid_t va_gid; /* owner group id */
xfs_ino_t va_nodeid; /* file id */
xfs_off_t va_size; /* file size in bytes */
u_long va_blocksize; /* blocksize preferred for i/o */
struct timespec va_atime; /* time of last access */
struct timespec va_mtime; /* time of last modification */
struct timespec va_ctime; /* time file changed */
u_int va_gen; /* generation number of file */
xfs_dev_t va_rdev; /* device the special file represents */
__int64_t va_nblocks; /* number of blocks allocated */
u_long va_xflags; /* random extended file flags */
u_long va_extsize; /* file extent size */
u_long va_nextents; /* number of extents in file */
u_long va_anextents; /* number of attr extents in file */
int va_projid; /* project id */
} xfs_vattr_t;
/*
* setattr or getattr attributes
*/
#define XFS_AT_TYPE 0x00000001
#define XFS_AT_MODE 0x00000002
#define XFS_AT_UID 0x00000004
#define XFS_AT_GID 0x00000008
#define XFS_AT_FSID 0x00000010
#define XFS_AT_NODEID 0x00000020
#define XFS_AT_NLINK 0x00000040
#define XFS_AT_SIZE 0x00000080
#define XFS_AT_ATIME 0x00000100
#define XFS_AT_MTIME 0x00000200
#define XFS_AT_CTIME 0x00000400
#define XFS_AT_RDEV 0x00000800
#define XFS_AT_BLKSIZE 0x00001000
#define XFS_AT_NBLOCKS 0x00002000
#define XFS_AT_VCODE 0x00004000
#define XFS_AT_MAC 0x00008000
#define XFS_AT_UPDATIME 0x00010000
#define XFS_AT_UPDMTIME 0x00020000
#define XFS_AT_UPDCTIME 0x00040000
#define XFS_AT_ACL 0x00080000
#define XFS_AT_CAP 0x00100000
#define XFS_AT_INF 0x00200000
#define XFS_AT_XFLAGS 0x00400000
#define XFS_AT_EXTSIZE 0x00800000
#define XFS_AT_NEXTENTS 0x01000000
#define XFS_AT_ANEXTENTS 0x02000000
#define XFS_AT_PROJID 0x04000000
#define XFS_AT_SIZE_NOPERM 0x08000000
#define XFS_AT_GENCOUNT 0x10000000
#define XFS_AT_ALL (XFS_AT_TYPE|XFS_AT_MODE|XFS_AT_UID|XFS_AT_GID|\
XFS_AT_FSID|XFS_AT_NODEID|XFS_AT_NLINK|XFS_AT_SIZE|\
XFS_AT_ATIME|XFS_AT_MTIME|XFS_AT_CTIME|XFS_AT_RDEV|\
XFS_AT_BLKSIZE|XFS_AT_NBLOCKS|XFS_AT_VCODE|XFS_AT_MAC|\
XFS_AT_ACL|XFS_AT_CAP|XFS_AT_INF|XFS_AT_XFLAGS|XFS_AT_EXTSIZE|\
XFS_AT_NEXTENTS|XFS_AT_ANEXTENTS|XFS_AT_PROJID|XFS_AT_GENCOUNT)
#define XFS_AT_STAT (XFS_AT_TYPE|XFS_AT_MODE|XFS_AT_UID|XFS_AT_GID|\
XFS_AT_FSID|XFS_AT_NODEID|XFS_AT_NLINK|XFS_AT_SIZE|\
XFS_AT_ATIME|XFS_AT_MTIME|XFS_AT_CTIME|XFS_AT_RDEV|\
XFS_AT_BLKSIZE|XFS_AT_NBLOCKS|XFS_AT_PROJID)
#define XFS_AT_TIMES (XFS_AT_ATIME|XFS_AT_MTIME|XFS_AT_CTIME)
#define XFS_AT_UPDTIMES (XFS_AT_UPDATIME|XFS_AT_UPDMTIME|XFS_AT_UPDCTIME)
#define XFS_AT_NOSET (XFS_AT_NLINK|XFS_AT_RDEV|XFS_AT_FSID|XFS_AT_NODEID|\
XFS_AT_TYPE|XFS_AT_BLKSIZE|XFS_AT_NBLOCKS|XFS_AT_VCODE|\
XFS_AT_NEXTENTS|XFS_AT_ANEXTENTS|XFS_AT_GENCOUNT)
#ifndef __FreeBSD__
/*
* Modes.
*/
#define VSUID S_ISUID /* set user id on execution */
#define VSGID S_ISGID /* set group id on execution */
#define VSVTX S_ISVTX /* save swapped text even after use */
#define VREAD S_IRUSR /* read, write, execute permissions */
#define VWRITE S_IWUSR
#define VEXEC S_IXUSR
#endif /* __FreeBSD__ */
#define MODEMASK ALLPERMS /* mode bits plus permission bits */
/*
* Check whether mandatory file locking is enabled.
*/
#define MANDLOCK(vp, mode) \
((vp)->v_vnode->v_type == VREG && ((mode) & (S_ISGID|(VEXEC>>3))) == S_ISGID)
extern void vn_init(void);
extern int vn_wait(struct xfs_vnode *);
extern void vn_iowait(struct xfs_vnode *);
extern xfs_vnode_t *vn_initialize(struct xfs_vnode *);
/*
* Acquiring and invalidating vnodes:
*
* if (vn_get(vp, version, 0))
* ...;
* vn_purge(vp, version);
*
* vn_get and vn_purge must be called with vmap_t arguments, sampled
* while a lock that the vnode's VOP_RECLAIM function acquires is
* held, to ensure that the vnode sampled with the lock held isn't
* recycled (VOP_RECLAIMed) or deallocated between the release of the lock
* and the subsequent vn_get or vn_purge.
*/
/*
* vnode_map structures _must_ match vn_epoch and vnode structure sizes.
*/
typedef struct vnode_map {
xfs_vfs_t *v_vfsp;
xfs_ino_t v_ino;
struct vnode *v_vp;
} vmap_t;
#if 1
#define VMAP(vp, vmap) {(vmap).v_vfsp = (vp)->v_vfsp; \
(vmap).v_vp = (vp)->v_vnode; \
(vmap).v_ino = (vp)->v_inode->i_ino;\
vhold((vp)->v_vnode); \
}
#endif
extern void vn_purge(struct xfs_vnode *);
extern xfs_vnode_t *vn_get(struct xfs_vnode *, vmap_t *);
extern int vn_revalidate(struct xfs_vnode *);
static inline int vn_count(struct xfs_vnode *vp)
{
return vp->v_vnode->v_usecount;
}
/*
* Vnode reference counting functions (and macros for compatibility).
*/
extern xfs_vnode_t *vn_hold(struct xfs_vnode *);
extern void vn_rele(struct xfs_vnode *);
#if defined(XFS_VNODE_TRACE)
#define VN_HOLD(vp) \
((void)vref((vp)->v_vnode), \
vn_trace_hold(vp, __FILE__, __LINE__, (inst_t *)__return_address))
#define VN_RELE(vp) \
(vn_trace_rele(vp, __FILE__, __LINE__, (inst_t *)__return_address), \
vrele((vp)->v_vnode))
#else
#define VN_HOLD(vp) vref((vp)->v_vnode)
#define VN_RELE(vp) vrele((vp)->v_vnode)
#endif
/*
* Vname handling macros.
*/
#define VNAME(cnp) ((cnp)->cn_nameptr)
#define VNAMELEN(cnp) ((cnp)->cn_namelen)
#define VNAME_TO_VNODE(dentry) (printf("VNAME_TO_VNODE NI"), (xfs_vnode_t *)0)
/*
* Vnode spinlock manipulation.
*/
#define VN_LOCK(vp) VI_LOCK(vp->v_vnode)
#define VN_UNLOCK(vp, s) VI_UNLOCK(vp->v_vnode)
#define VN_FLAGSET(vp,b) vn_flagset(vp,b)
#define VN_FLAGCLR(vp,b) vn_flagclr(vp,b)
static __inline__ void vn_flagset(struct xfs_vnode *vp, __u32 flag)
{
VN_LOCK(vp);
vp->v_flag |= flag;
VN_UNLOCK(vp, 0);
}
static __inline__ void vn_flagclr(struct xfs_vnode *vp, __u32 flag)
{
VN_LOCK(vp);
vp->v_flag &= ~flag;
VN_UNLOCK(vp, 0);
}
/*
* Update modify/access/change times on the vnode
*/
#define VN_MTIMESET(vp, tvp)
#define VN_ATIMESET(vp, tvp)
#define VN_CTIMESET(vp, tvp)
/*
* Some useful predicates.
*/
#define VN_MAPPED(vp) 0
#define VN_CACHED(vp) 0
#define VN_DIRTY(vp) 0
#define VMODIFY(vp) VN_FLAGSET(vp, VMODIFIED)
#define VUNMODIFY(vp) VN_FLAGCLR(vp, VMODIFIED)
/*
* Flags to VOP_SETATTR/VOP_GETATTR.
*/
#define ATTR_UTIME 0x01 /* non-default utime(2) request */
#define ATTR_DMI 0x08 /* invocation from a DMI function */
#define ATTR_LAZY 0x80 /* set/get attributes lazily */
#define ATTR_NONBLOCK 0x100 /* return EAGAIN if operation would block */
#define ATTR_NOLOCK 0x200 /* Don't grab any conflicting locks */
#define ATTR_NOSIZETOK 0x400 /* Don't get the SIZE token */
/*
* Flags to VOP_FSYNC and VOP_RECLAIM.
*/
#define FSYNC_NOWAIT 0 /* asynchronous flush */
#define FSYNC_WAIT 0x1 /* synchronous fsync or forced reclaim */
#define FSYNC_INVAL 0x2 /* flush and invalidate cached data */
#define FSYNC_DATA 0x4 /* synchronous fsync of data only */
static inline struct xfs_vnode *vn_grab(struct xfs_vnode *vp)
{
printf("vn_grab NI\n");
// struct inode *inode = igrab(vn_to_inode(vp));
// return inode ? vn_from_inode(inode) : NULL;
return NULL;
}
static inline void vn_atime_to_bstime(struct xfs_vnode *vp, xfs_bstime_t *bs_atime)
{
printf("%s NI\n", __func__);
// bs_atime->tv_sec = vp->v_inode.i_atime.tv_sec;
// bs_atime->tv_nsec = vp->v_inode.i_atime.tv_nsec;
}
static inline void vn_atime_to_timespec(struct xfs_vnode *vp, struct timespec *ts)
{
// *ts = vp->v_vnode->va_atime;
}
/*
* Tracking vnode activity.
*/
#if defined(XFS_VNODE_TRACE)
#define VNODE_TRACE_SIZE 16 /* number of trace entries */
#define VNODE_KTRACE_ENTRY 1
#define VNODE_KTRACE_EXIT 2
#define VNODE_KTRACE_HOLD 3
#define VNODE_KTRACE_REF 4
#define VNODE_KTRACE_RELE 5
extern void vn_trace_entry(struct xfs_vnode *, char *, inst_t *);
extern void vn_trace_exit(struct xfs_vnode *, char *, inst_t *);
extern void vn_trace_hold(struct xfs_vnode *, char *, int, inst_t *);
extern void vn_trace_ref(struct xfs_vnode *, char *, int, inst_t *);
extern void vn_trace_rele(struct xfs_vnode *, char *, int, inst_t *);
#define VN_TRACE(vp) \
vn_trace_ref(vp, __FILE__, __LINE__, (inst_t *)__return_address)
#else
#define vn_trace_entry(a,b,c)
#define vn_trace_exit(a,b,c)
#define vn_trace_hold(a,b,c,d)
#define vn_trace_ref(a,b,c,d)
#define vn_trace_rele(a,b,c,d)
#define VN_TRACE(vp)
#endif
#endif /* __XFS_VNODE_H__ */