2005-04-17 00:20:36 +02:00
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/*
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2005-11-02 04:58:39 +01:00
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* Copyright (c) 2000-2005 Silicon Graphics, Inc.
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* All Rights Reserved.
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2005-04-17 00:20:36 +02:00
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*
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2005-11-02 04:58:39 +01:00
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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2005-04-17 00:20:36 +02:00
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* published by the Free Software Foundation.
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*
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2005-11-02 04:58:39 +01:00
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* This program is distributed in the hope that it would be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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2005-04-17 00:20:36 +02:00
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*
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2005-11-02 04:58:39 +01:00
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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2005-04-17 00:20:36 +02:00
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*
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* Portions Copyright (c) 1989, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef __XFS_VNODE_H__
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#define __XFS_VNODE_H__
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struct uio;
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struct file;
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struct vattr;
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struct xfs_iomap;
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struct attrlist_cursor_kern;
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typedef xfs_ino_t vnumber_t;
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typedef struct dentry vname_t;
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typedef bhv_head_t vn_bhv_head_t;
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2006-06-09 07:27:16 +02:00
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typedef enum vflags {
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VMODIFIED = 0x08, /* XFS inode state possibly differs */
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/* to the Linux inode state. */
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VTRUNCATED = 0x40, /* truncated down so flush-on-close */
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} vflags_t;
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2005-04-17 00:20:36 +02:00
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/*
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* MP locking protocols:
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* v_flag, v_vfsp VN_LOCK/VN_UNLOCK
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*/
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typedef struct vnode {
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2006-06-09 07:27:16 +02:00
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vflags_t v_flag; /* vnode flags (see above) */
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2006-06-09 08:48:30 +02:00
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struct bhv_vfs *v_vfsp; /* ptr to containing VFS */
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2005-04-17 00:20:36 +02:00
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vnumber_t v_number; /* in-core vnode number */
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vn_bhv_head_t v_bh; /* behavior head */
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spinlock_t v_lock; /* VN_LOCK/VN_UNLOCK */
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2005-09-02 08:58:38 +02:00
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atomic_t v_iocount; /* outstanding I/O count */
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2005-04-17 00:20:36 +02:00
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#ifdef XFS_VNODE_TRACE
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struct ktrace *v_trace; /* trace header structure */
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#endif
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2005-05-05 22:26:18 +02:00
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struct inode v_inode; /* Linux inode */
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/* inode MUST be last */
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2005-04-17 00:20:36 +02:00
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} vnode_t;
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2005-09-02 08:46:51 +02:00
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#define VN_ISLNK(vp) S_ISLNK((vp)->v_inode.i_mode)
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#define VN_ISREG(vp) S_ISREG((vp)->v_inode.i_mode)
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#define VN_ISDIR(vp) S_ISDIR((vp)->v_inode.i_mode)
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#define VN_ISCHR(vp) S_ISCHR((vp)->v_inode.i_mode)
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#define VN_ISBLK(vp) S_ISBLK((vp)->v_inode.i_mode)
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2005-04-17 00:20:36 +02:00
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#define v_fbhv v_bh.bh_first /* first behavior */
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#define v_fops v_bh.bh_first->bd_ops /* first behavior ops */
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#define VNODE_POSITION_BASE BHV_POSITION_BASE /* chain bottom */
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#define VNODE_POSITION_TOP BHV_POSITION_TOP /* chain top */
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#define VNODE_POSITION_INVALID BHV_POSITION_INVALID /* invalid pos. num */
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typedef enum {
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VN_BHV_UNKNOWN, /* not specified */
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VN_BHV_XFS, /* xfs */
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VN_BHV_DM, /* data migration */
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VN_BHV_QM, /* quota manager */
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VN_BHV_IO, /* IO path */
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VN_BHV_END /* housekeeping end-of-range */
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} vn_bhv_t;
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#define VNODE_POSITION_XFS (VNODE_POSITION_BASE)
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#define VNODE_POSITION_DM (VNODE_POSITION_BASE+10)
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#define VNODE_POSITION_QM (VNODE_POSITION_BASE+20)
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#define VNODE_POSITION_IO (VNODE_POSITION_BASE+30)
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/*
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* Macros for dealing with the behavior descriptor inside of the vnode.
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*/
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#define BHV_TO_VNODE(bdp) ((vnode_t *)BHV_VOBJ(bdp))
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#define BHV_TO_VNODE_NULL(bdp) ((vnode_t *)BHV_VOBJNULL(bdp))
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#define VN_BHV_HEAD(vp) ((bhv_head_t *)(&((vp)->v_bh)))
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#define vn_bhv_head_init(bhp,name) bhv_head_init(bhp,name)
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#define vn_bhv_remove(bhp,bdp) bhv_remove(bhp,bdp)
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#define vn_bhv_lookup(bhp,ops) bhv_lookup(bhp,ops)
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#define vn_bhv_lookup_unlocked(bhp,ops) bhv_lookup_unlocked(bhp,ops)
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/*
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* Vnode to Linux inode mapping.
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*/
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2006-03-17 07:25:36 +01:00
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static inline struct vnode *vn_from_inode(struct inode *inode)
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{
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return (vnode_t *)list_entry(inode, vnode_t, v_inode);
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}
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static inline struct inode *vn_to_inode(struct vnode *vnode)
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{
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return &vnode->v_inode;
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}
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2005-04-17 00:20:36 +02:00
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/*
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* Values for the VOP_RWLOCK and VOP_RWUNLOCK flags parameter.
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*/
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typedef enum vrwlock {
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VRWLOCK_NONE,
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VRWLOCK_READ,
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VRWLOCK_WRITE,
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VRWLOCK_WRITE_DIRECT,
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VRWLOCK_TRY_READ,
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VRWLOCK_TRY_WRITE
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} vrwlock_t;
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/*
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* Return values for VOP_INACTIVE. A return value of
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* VN_INACTIVE_NOCACHE implies that the file system behavior
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* has disassociated its state and bhv_desc_t from the vnode.
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*/
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#define VN_INACTIVE_CACHE 0
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#define VN_INACTIVE_NOCACHE 1
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/*
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* Values for the cmd code given to VOP_VNODE_CHANGE.
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*/
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typedef enum vchange {
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VCHANGE_FLAGS_FRLOCKS = 0,
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VCHANGE_FLAGS_ENF_LOCKING = 1,
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VCHANGE_FLAGS_TRUNCATED = 2,
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VCHANGE_FLAGS_PAGE_DIRTY = 3,
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VCHANGE_FLAGS_IOEXCL_COUNT = 4
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} vchange_t;
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2006-06-09 07:27:16 +02:00
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typedef enum { L_FALSE, L_TRUE } lastclose_t;
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2005-04-17 00:20:36 +02:00
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typedef int (*vop_open_t)(bhv_desc_t *, struct cred *);
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2006-06-09 07:27:16 +02:00
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typedef int (*vop_close_t)(bhv_desc_t *, int, lastclose_t, struct cred *);
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2005-04-17 00:20:36 +02:00
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typedef ssize_t (*vop_read_t)(bhv_desc_t *, struct kiocb *,
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const struct iovec *, unsigned int,
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loff_t *, int, struct cred *);
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typedef ssize_t (*vop_write_t)(bhv_desc_t *, struct kiocb *,
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const struct iovec *, unsigned int,
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loff_t *, int, struct cred *);
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typedef ssize_t (*vop_sendfile_t)(bhv_desc_t *, struct file *,
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loff_t *, int, size_t, read_actor_t,
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void *, struct cred *);
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2006-04-11 14:57:50 +02:00
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typedef ssize_t (*vop_splice_read_t)(bhv_desc_t *, struct file *, loff_t *,
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2006-04-10 15:18:35 +02:00
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struct pipe_inode_info *, size_t, int, int,
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2006-03-31 05:08:59 +02:00
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struct cred *);
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2006-04-10 15:18:35 +02:00
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typedef ssize_t (*vop_splice_write_t)(bhv_desc_t *, struct pipe_inode_info *,
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2006-04-11 14:57:50 +02:00
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struct file *, loff_t *, size_t, int, int,
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2006-03-31 05:08:59 +02:00
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struct cred *);
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2005-04-17 00:20:36 +02:00
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typedef int (*vop_ioctl_t)(bhv_desc_t *, struct inode *, struct file *,
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int, unsigned int, void __user *);
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typedef int (*vop_getattr_t)(bhv_desc_t *, struct vattr *, int,
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struct cred *);
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typedef int (*vop_setattr_t)(bhv_desc_t *, struct vattr *, int,
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struct cred *);
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typedef int (*vop_access_t)(bhv_desc_t *, int, struct cred *);
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typedef int (*vop_lookup_t)(bhv_desc_t *, vname_t *, vnode_t **,
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int, vnode_t *, struct cred *);
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typedef int (*vop_create_t)(bhv_desc_t *, vname_t *, struct vattr *,
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vnode_t **, struct cred *);
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typedef int (*vop_remove_t)(bhv_desc_t *, vname_t *, struct cred *);
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typedef int (*vop_link_t)(bhv_desc_t *, vnode_t *, vname_t *,
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struct cred *);
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typedef int (*vop_rename_t)(bhv_desc_t *, vname_t *, vnode_t *, vname_t *,
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struct cred *);
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typedef int (*vop_mkdir_t)(bhv_desc_t *, vname_t *, struct vattr *,
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vnode_t **, struct cred *);
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typedef int (*vop_rmdir_t)(bhv_desc_t *, vname_t *, struct cred *);
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typedef int (*vop_readdir_t)(bhv_desc_t *, struct uio *, struct cred *,
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int *);
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typedef int (*vop_symlink_t)(bhv_desc_t *, vname_t *, struct vattr *,
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char *, vnode_t **, struct cred *);
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typedef int (*vop_readlink_t)(bhv_desc_t *, struct uio *, int,
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struct cred *);
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typedef int (*vop_fsync_t)(bhv_desc_t *, int, struct cred *,
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xfs_off_t, xfs_off_t);
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typedef int (*vop_inactive_t)(bhv_desc_t *, struct cred *);
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typedef int (*vop_fid2_t)(bhv_desc_t *, struct fid *);
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typedef int (*vop_release_t)(bhv_desc_t *);
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typedef int (*vop_rwlock_t)(bhv_desc_t *, vrwlock_t);
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typedef void (*vop_rwunlock_t)(bhv_desc_t *, vrwlock_t);
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typedef int (*vop_bmap_t)(bhv_desc_t *, xfs_off_t, ssize_t, int,
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struct xfs_iomap *, int *);
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typedef int (*vop_reclaim_t)(bhv_desc_t *);
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2005-11-02 01:43:04 +01:00
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typedef int (*vop_attr_get_t)(bhv_desc_t *, const char *, char *, int *,
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int, struct cred *);
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typedef int (*vop_attr_set_t)(bhv_desc_t *, const char *, char *, int,
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int, struct cred *);
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typedef int (*vop_attr_remove_t)(bhv_desc_t *, const char *,
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int, struct cred *);
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2005-04-17 00:20:36 +02:00
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typedef int (*vop_attr_list_t)(bhv_desc_t *, char *, int, int,
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struct attrlist_cursor_kern *, struct cred *);
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typedef void (*vop_link_removed_t)(bhv_desc_t *, vnode_t *, int);
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typedef void (*vop_vnode_change_t)(bhv_desc_t *, vchange_t, __psint_t);
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typedef void (*vop_ptossvp_t)(bhv_desc_t *, xfs_off_t, xfs_off_t, int);
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typedef void (*vop_pflushinvalvp_t)(bhv_desc_t *, xfs_off_t, xfs_off_t, int);
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typedef int (*vop_pflushvp_t)(bhv_desc_t *, xfs_off_t, xfs_off_t,
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uint64_t, int);
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typedef int (*vop_iflush_t)(bhv_desc_t *, int);
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typedef struct vnodeops {
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bhv_position_t vn_position; /* position within behavior chain */
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vop_open_t vop_open;
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2006-06-09 07:27:16 +02:00
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vop_close_t vop_close;
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2005-04-17 00:20:36 +02:00
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vop_read_t vop_read;
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vop_write_t vop_write;
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vop_sendfile_t vop_sendfile;
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2006-03-31 05:08:59 +02:00
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vop_splice_read_t vop_splice_read;
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vop_splice_write_t vop_splice_write;
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2005-04-17 00:20:36 +02:00
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vop_ioctl_t vop_ioctl;
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vop_getattr_t vop_getattr;
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vop_setattr_t vop_setattr;
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vop_access_t vop_access;
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vop_lookup_t vop_lookup;
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vop_create_t vop_create;
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vop_remove_t vop_remove;
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vop_link_t vop_link;
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vop_rename_t vop_rename;
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vop_mkdir_t vop_mkdir;
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vop_rmdir_t vop_rmdir;
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vop_readdir_t vop_readdir;
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vop_symlink_t vop_symlink;
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vop_readlink_t vop_readlink;
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vop_fsync_t vop_fsync;
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vop_inactive_t vop_inactive;
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vop_fid2_t vop_fid2;
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vop_rwlock_t vop_rwlock;
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vop_rwunlock_t vop_rwunlock;
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vop_bmap_t vop_bmap;
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vop_reclaim_t vop_reclaim;
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vop_attr_get_t vop_attr_get;
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vop_attr_set_t vop_attr_set;
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vop_attr_remove_t vop_attr_remove;
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vop_attr_list_t vop_attr_list;
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vop_link_removed_t vop_link_removed;
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vop_vnode_change_t vop_vnode_change;
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vop_ptossvp_t vop_tosspages;
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vop_pflushinvalvp_t vop_flushinval_pages;
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vop_pflushvp_t vop_flush_pages;
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vop_release_t vop_release;
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vop_iflush_t vop_iflush;
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} vnodeops_t;
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/*
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* VOP's.
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*/
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#define _VOP_(op, vp) (*((vnodeops_t *)(vp)->v_fops)->op)
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2006-06-09 07:27:16 +02:00
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#define VOP_OPEN(vp, cr, rv) \
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rv = _VOP_(vop_open, vp)((vp)->v_fbhv, cr)
|
|
|
|
#define VOP_CLOSE(vp, f, last, cr, rv) \
|
|
|
|
rv = _VOP_(vop_close, vp)((vp)->v_fbhv, f, last, cr)
|
2005-04-17 00:20:36 +02:00
|
|
|
#define VOP_READ(vp,file,iov,segs,offset,ioflags,cr,rv) \
|
|
|
|
rv = _VOP_(vop_read, vp)((vp)->v_fbhv,file,iov,segs,offset,ioflags,cr)
|
|
|
|
#define VOP_WRITE(vp,file,iov,segs,offset,ioflags,cr,rv) \
|
|
|
|
rv = _VOP_(vop_write, vp)((vp)->v_fbhv,file,iov,segs,offset,ioflags,cr)
|
|
|
|
#define VOP_SENDFILE(vp,f,off,ioflags,cnt,act,targ,cr,rv) \
|
|
|
|
rv = _VOP_(vop_sendfile, vp)((vp)->v_fbhv,f,off,ioflags,cnt,act,targ,cr)
|
2006-04-11 14:57:50 +02:00
|
|
|
#define VOP_SPLICE_READ(vp,f,o,pipe,cnt,fl,iofl,cr,rv) \
|
|
|
|
rv = _VOP_(vop_splice_read, vp)((vp)->v_fbhv,f,o,pipe,cnt,fl,iofl,cr)
|
|
|
|
#define VOP_SPLICE_WRITE(vp,f,o,pipe,cnt,fl,iofl,cr,rv) \
|
|
|
|
rv = _VOP_(vop_splice_write, vp)((vp)->v_fbhv,f,o,pipe,cnt,fl,iofl,cr)
|
2005-04-17 00:20:36 +02:00
|
|
|
#define VOP_BMAP(vp,of,sz,rw,b,n,rv) \
|
|
|
|
rv = _VOP_(vop_bmap, vp)((vp)->v_fbhv,of,sz,rw,b,n)
|
|
|
|
#define VOP_GETATTR(vp, vap, f, cr, rv) \
|
|
|
|
rv = _VOP_(vop_getattr, vp)((vp)->v_fbhv, vap, f, cr)
|
|
|
|
#define VOP_SETATTR(vp, vap, f, cr, rv) \
|
|
|
|
rv = _VOP_(vop_setattr, vp)((vp)->v_fbhv, vap, f, cr)
|
|
|
|
#define VOP_ACCESS(vp, mode, cr, rv) \
|
|
|
|
rv = _VOP_(vop_access, vp)((vp)->v_fbhv, mode, cr)
|
|
|
|
#define VOP_LOOKUP(vp,d,vpp,f,rdir,cr,rv) \
|
|
|
|
rv = _VOP_(vop_lookup, vp)((vp)->v_fbhv,d,vpp,f,rdir,cr)
|
|
|
|
#define VOP_CREATE(dvp,d,vap,vpp,cr,rv) \
|
|
|
|
rv = _VOP_(vop_create, dvp)((dvp)->v_fbhv,d,vap,vpp,cr)
|
|
|
|
#define VOP_REMOVE(dvp,d,cr,rv) \
|
|
|
|
rv = _VOP_(vop_remove, dvp)((dvp)->v_fbhv,d,cr)
|
|
|
|
#define VOP_LINK(tdvp,fvp,d,cr,rv) \
|
|
|
|
rv = _VOP_(vop_link, tdvp)((tdvp)->v_fbhv,fvp,d,cr)
|
|
|
|
#define VOP_RENAME(fvp,fnm,tdvp,tnm,cr,rv) \
|
|
|
|
rv = _VOP_(vop_rename, fvp)((fvp)->v_fbhv,fnm,tdvp,tnm,cr)
|
|
|
|
#define VOP_MKDIR(dp,d,vap,vpp,cr,rv) \
|
|
|
|
rv = _VOP_(vop_mkdir, dp)((dp)->v_fbhv,d,vap,vpp,cr)
|
|
|
|
#define VOP_RMDIR(dp,d,cr,rv) \
|
|
|
|
rv = _VOP_(vop_rmdir, dp)((dp)->v_fbhv,d,cr)
|
|
|
|
#define VOP_READDIR(vp,uiop,cr,eofp,rv) \
|
|
|
|
rv = _VOP_(vop_readdir, vp)((vp)->v_fbhv,uiop,cr,eofp)
|
|
|
|
#define VOP_SYMLINK(dvp,d,vap,tnm,vpp,cr,rv) \
|
|
|
|
rv = _VOP_(vop_symlink, dvp) ((dvp)->v_fbhv,d,vap,tnm,vpp,cr)
|
|
|
|
#define VOP_READLINK(vp,uiop,fl,cr,rv) \
|
|
|
|
rv = _VOP_(vop_readlink, vp)((vp)->v_fbhv,uiop,fl,cr)
|
|
|
|
#define VOP_FSYNC(vp,f,cr,b,e,rv) \
|
|
|
|
rv = _VOP_(vop_fsync, vp)((vp)->v_fbhv,f,cr,b,e)
|
|
|
|
#define VOP_INACTIVE(vp, cr, rv) \
|
|
|
|
rv = _VOP_(vop_inactive, vp)((vp)->v_fbhv, cr)
|
|
|
|
#define VOP_RELEASE(vp, rv) \
|
|
|
|
rv = _VOP_(vop_release, vp)((vp)->v_fbhv)
|
|
|
|
#define VOP_FID2(vp, fidp, rv) \
|
|
|
|
rv = _VOP_(vop_fid2, vp)((vp)->v_fbhv, fidp)
|
|
|
|
#define VOP_RWLOCK(vp,i) \
|
|
|
|
(void)_VOP_(vop_rwlock, vp)((vp)->v_fbhv, i)
|
|
|
|
#define VOP_RWLOCK_TRY(vp,i) \
|
|
|
|
_VOP_(vop_rwlock, vp)((vp)->v_fbhv, i)
|
|
|
|
#define VOP_RWUNLOCK(vp,i) \
|
|
|
|
(void)_VOP_(vop_rwunlock, vp)((vp)->v_fbhv, i)
|
|
|
|
#define VOP_FRLOCK(vp,c,fl,flags,offset,fr,rv) \
|
|
|
|
rv = _VOP_(vop_frlock, vp)((vp)->v_fbhv,c,fl,flags,offset,fr)
|
|
|
|
#define VOP_RECLAIM(vp, rv) \
|
|
|
|
rv = _VOP_(vop_reclaim, vp)((vp)->v_fbhv)
|
|
|
|
#define VOP_ATTR_GET(vp, name, val, vallenp, fl, cred, rv) \
|
|
|
|
rv = _VOP_(vop_attr_get, vp)((vp)->v_fbhv,name,val,vallenp,fl,cred)
|
|
|
|
#define VOP_ATTR_SET(vp, name, val, vallen, fl, cred, rv) \
|
|
|
|
rv = _VOP_(vop_attr_set, vp)((vp)->v_fbhv,name,val,vallen,fl,cred)
|
|
|
|
#define VOP_ATTR_REMOVE(vp, name, flags, cred, rv) \
|
|
|
|
rv = _VOP_(vop_attr_remove, vp)((vp)->v_fbhv,name,flags,cred)
|
|
|
|
#define VOP_ATTR_LIST(vp, buf, buflen, fl, cursor, cred, rv) \
|
|
|
|
rv = _VOP_(vop_attr_list, vp)((vp)->v_fbhv,buf,buflen,fl,cursor,cred)
|
|
|
|
#define VOP_LINK_REMOVED(vp, dvp, linkzero) \
|
|
|
|
(void)_VOP_(vop_link_removed, vp)((vp)->v_fbhv, dvp, linkzero)
|
|
|
|
#define VOP_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 VOP_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 VOP_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 VOP_FLUSH_PAGES(vp, first, last, flags, fiopt, rv) \
|
|
|
|
rv = _VOP_(vop_flush_pages, vp)((vp)->v_fbhv,first,last,flags,fiopt)
|
|
|
|
#define VOP_IOCTL(vp, inode, filp, fl, cmd, arg, rv) \
|
|
|
|
rv = _VOP_(vop_ioctl, vp)((vp)->v_fbhv,inode,filp,fl,cmd,arg)
|
|
|
|
#define VOP_IFLUSH(vp, flags, rv) \
|
|
|
|
rv = _VOP_(vop_iflush, vp)((vp)->v_fbhv, flags)
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Flags for read/write calls - same values as IRIX
|
|
|
|
*/
|
|
|
|
#define IO_ISAIO 0x00001 /* don't wait for completion */
|
|
|
|
#define IO_ISDIRECT 0x00004 /* bypass page cache */
|
|
|
|
#define IO_INVIS 0x00020 /* don't update inode timestamps */
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 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 vattr {
|
|
|
|
int va_mask; /* bit-mask of attributes present */
|
|
|
|
mode_t va_mode; /* file access mode and type */
|
2005-05-05 22:25:00 +02:00
|
|
|
xfs_nlink_t va_nlink; /* number of references to file */
|
2005-04-17 00:20:36 +02:00
|
|
|
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 */
|
2005-06-21 05:21:49 +02:00
|
|
|
prid_t va_projid; /* project id */
|
2005-04-17 00:20:36 +02:00
|
|
|
} 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)
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 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
|
|
|
|
|
|
|
|
#define MODEMASK S_IALLUGO /* mode bits plus permission bits */
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Check whether mandatory file locking is enabled.
|
|
|
|
*/
|
|
|
|
#define MANDLOCK(vp, mode) \
|
2005-09-02 08:46:51 +02:00
|
|
|
(VN_ISREG(vp) && ((mode) & (VSGID|(VEXEC>>3))) == VSGID)
|
2005-04-17 00:20:36 +02:00
|
|
|
|
|
|
|
extern void vn_init(void);
|
|
|
|
extern vnode_t *vn_initialize(struct inode *);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* vnode_map structures _must_ match vn_epoch and vnode structure sizes.
|
|
|
|
*/
|
|
|
|
typedef struct vnode_map {
|
2006-06-09 08:48:30 +02:00
|
|
|
bhv_vfs_t *v_vfsp;
|
2005-04-17 00:20:36 +02:00
|
|
|
vnumber_t v_number; /* in-core vnode number */
|
|
|
|
xfs_ino_t v_ino; /* inode # */
|
|
|
|
} vmap_t;
|
|
|
|
|
|
|
|
#define VMAP(vp, vmap) {(vmap).v_vfsp = (vp)->v_vfsp, \
|
|
|
|
(vmap).v_number = (vp)->v_number, \
|
|
|
|
(vmap).v_ino = (vp)->v_inode.i_ino; }
|
|
|
|
|
|
|
|
extern int vn_revalidate(struct vnode *);
|
2006-03-14 03:33:36 +01:00
|
|
|
extern int __vn_revalidate(struct vnode *, vattr_t *);
|
2005-04-17 00:20:36 +02:00
|
|
|
extern void vn_revalidate_core(struct vnode *, vattr_t *);
|
|
|
|
|
2005-09-02 08:58:38 +02:00
|
|
|
extern void vn_iowait(struct vnode *vp);
|
|
|
|
extern void vn_iowake(struct vnode *vp);
|
|
|
|
|
2006-06-09 06:58:38 +02:00
|
|
|
extern void vn_ioerror(struct vnode *vp, int error, char *f, int l);
|
|
|
|
|
2005-04-17 00:20:36 +02:00
|
|
|
static inline int vn_count(struct vnode *vp)
|
|
|
|
{
|
2006-03-17 07:25:36 +01:00
|
|
|
return atomic_read(&vn_to_inode(vp)->i_count);
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Vnode reference counting functions (and macros for compatibility).
|
|
|
|
*/
|
|
|
|
extern vnode_t *vn_hold(struct vnode *);
|
|
|
|
|
|
|
|
#if defined(XFS_VNODE_TRACE)
|
|
|
|
#define VN_HOLD(vp) \
|
|
|
|
((void)vn_hold(vp), \
|
|
|
|
vn_trace_hold(vp, __FILE__, __LINE__, (inst_t *)__return_address))
|
|
|
|
#define VN_RELE(vp) \
|
|
|
|
(vn_trace_rele(vp, __FILE__, __LINE__, (inst_t *)__return_address), \
|
2006-03-17 07:25:36 +01:00
|
|
|
iput(vn_to_inode(vp)))
|
2005-04-17 00:20:36 +02:00
|
|
|
#else
|
|
|
|
#define VN_HOLD(vp) ((void)vn_hold(vp))
|
2006-03-17 07:25:36 +01:00
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#define VN_RELE(vp) (iput(vn_to_inode(vp)))
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2005-04-17 00:20:36 +02:00
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#endif
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2005-09-02 08:24:19 +02:00
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static inline struct vnode *vn_grab(struct vnode *vp)
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{
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2006-03-17 07:25:36 +01:00
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struct inode *inode = igrab(vn_to_inode(vp));
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return inode ? vn_from_inode(inode) : NULL;
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2005-09-02 08:24:19 +02:00
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}
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2005-04-17 00:20:36 +02:00
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/*
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* Vname handling macros.
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*/
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#define VNAME(dentry) ((char *) (dentry)->d_name.name)
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#define VNAMELEN(dentry) ((dentry)->d_name.len)
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2006-03-17 07:25:36 +01:00
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#define VNAME_TO_VNODE(dentry) (vn_from_inode((dentry)->d_inode))
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2005-04-17 00:20:36 +02:00
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/*
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* Vnode spinlock manipulation.
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|
*/
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#define VN_LOCK(vp) mutex_spinlock(&(vp)->v_lock)
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#define VN_UNLOCK(vp, s) mutex_spinunlock(&(vp)->v_lock, s)
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|
static __inline__ void vn_flagset(struct vnode *vp, uint flag)
|
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|
{
|
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|
spin_lock(&vp->v_lock);
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vp->v_flag |= flag;
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|
spin_unlock(&vp->v_lock);
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|
}
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|
2006-06-09 07:27:16 +02:00
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static __inline__ uint vn_flagclr(struct vnode *vp, uint flag)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
2006-06-09 07:27:16 +02:00
|
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|
uint cleared;
|
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|
2005-04-17 00:20:36 +02:00
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|
spin_lock(&vp->v_lock);
|
2006-06-09 07:27:16 +02:00
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|
cleared = (vp->v_flag & flag);
|
2005-04-17 00:20:36 +02:00
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|
vp->v_flag &= ~flag;
|
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|
|
spin_unlock(&vp->v_lock);
|
2006-06-09 07:27:16 +02:00
|
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|
return cleared;
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
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|
2006-06-09 07:27:16 +02:00
|
|
|
#define VMODIFY(vp) vn_flagset(vp, VMODIFIED)
|
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|
|
#define VUNMODIFY(vp) vn_flagclr(vp, VMODIFIED)
|
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|
|
#define VTRUNCATE(vp) vn_flagset(vp, VTRUNCATED)
|
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|
|
#define VUNTRUNCATE(vp) vn_flagclr(vp, VTRUNCATED)
|
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|
|
|
2005-04-17 00:20:36 +02:00
|
|
|
/*
|
|
|
|
* Dealing with bad inodes
|
|
|
|
*/
|
|
|
|
static inline void vn_mark_bad(struct vnode *vp)
|
|
|
|
{
|
2006-03-17 07:25:36 +01:00
|
|
|
make_bad_inode(vn_to_inode(vp));
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
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|
|
|
static inline int VN_BAD(struct vnode *vp)
|
|
|
|
{
|
2006-03-17 07:25:36 +01:00
|
|
|
return is_bad_inode(vn_to_inode(vp));
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
2006-01-11 11:03:04 +01:00
|
|
|
/*
|
|
|
|
* Extracting atime values in various formats
|
|
|
|
*/
|
|
|
|
static inline void vn_atime_to_bstime(struct vnode *vp, xfs_bstime_t *bs_atime)
|
|
|
|
{
|
|
|
|
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 vnode *vp, struct timespec *ts)
|
|
|
|
{
|
|
|
|
*ts = vp->v_inode.i_atime;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void vn_atime_to_time_t(struct vnode *vp, time_t *tt)
|
|
|
|
{
|
|
|
|
*tt = vp->v_inode.i_atime.tv_sec;
|
|
|
|
}
|
|
|
|
|
2005-04-17 00:20:36 +02:00
|
|
|
/*
|
|
|
|
* Some useful predicates.
|
|
|
|
*/
|
2006-03-17 07:25:36 +01:00
|
|
|
#define VN_MAPPED(vp) mapping_mapped(vn_to_inode(vp)->i_mapping)
|
|
|
|
#define VN_CACHED(vp) (vn_to_inode(vp)->i_mapping->nrpages)
|
|
|
|
#define VN_DIRTY(vp) mapping_tagged(vn_to_inode(vp)->i_mapping, \
|
2005-04-17 00:20:36 +02:00
|
|
|
PAGECACHE_TAG_DIRTY)
|
2006-06-09 07:27:16 +02:00
|
|
|
#define VN_TRUNC(vp) ((vp)->v_flag & VTRUNCATED)
|
2005-04-17 00:20:36 +02:00
|
|
|
|
|
|
|
/*
|
|
|
|
* 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 */
|
2005-05-05 22:27:19 +02:00
|
|
|
#define ATTR_NOLOCK 0x200 /* Don't grab any conflicting locks */
|
2005-11-02 05:08:10 +01:00
|
|
|
#define ATTR_NOSIZETOK 0x400 /* Don't get the SIZE token */
|
2005-04-17 00:20:36 +02:00
|
|
|
|
|
|
|
/*
|
|
|
|
* 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 */
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 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
|
|
|
|
|
2005-05-05 22:29:17 +02:00
|
|
|
extern void vn_trace_entry(struct vnode *, const char *, inst_t *);
|
|
|
|
extern void vn_trace_exit(struct vnode *, const char *, inst_t *);
|
2005-04-17 00:20:36 +02:00
|
|
|
extern void vn_trace_hold(struct vnode *, char *, int, inst_t *);
|
|
|
|
extern void vn_trace_ref(struct vnode *, char *, int, inst_t *);
|
|
|
|
extern void vn_trace_rele(struct 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__ */
|