987f569678
1. Remove VOP_UPDATE, it is (also) an UFS/{FFS,LFS,EXT2FS,MFS}
intereface function, and now lives in the ufsmount structure.
2. Remove VOP_SEEK, it was unused.
3. Add mode default vops:
VOP_ADVLOCK vop_einval
VOP_CLOSE vop_null
VOP_FSYNC vop_null
VOP_IOCTL vop_enotty
VOP_MMAP vop_einval
VOP_OPEN vop_null
VOP_PATHCONF vop_einval
VOP_READLINK vop_einval
VOP_REALLOCBLKS vop_eopnotsupp
And remove identical functionality from filesystems
4. Add vop_stdpathconf, which returns the canonical stuff. Use
it in the filesystems. (XXX: It's probably wrong that specfs
and fifofs sets this vop, shouldn't it come from the "host"
filesystem, for instance ufs or cd9660 ?)
5. Try to make system wide VOP functions have vop_* names.
6. Initialize the um_* vectors in LFS.
(Recompile your LKMS!!!)
132 lines
5.1 KiB
C
132 lines
5.1 KiB
C
/*
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* Copyright (c) 1982, 1986, 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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. 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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* @(#)ufsmount.h 8.6 (Berkeley) 3/30/95
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* $Id: ufsmount.h,v 1.11 1997/10/16 10:50:27 phk Exp $
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*/
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#ifndef _UFS_UFS_UFSMOUNT_H_
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#define _UFS_UFS_UFSMOUNT_H_
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/*
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* Arguments to mount UFS-based filesystems
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*/
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struct ufs_args {
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char *fspec; /* block special device to mount */
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struct export_args export; /* network export information */
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};
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/*
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* Arguments to mount MFS
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*/
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struct mfs_args {
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char *fspec; /* name to export for statfs */
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struct export_args export; /* if exported MFSes are supported */
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caddr_t base; /* base of file system in memory */
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u_long size; /* size of file system */
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};
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#ifdef KERNEL
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#ifdef MALLOC_DECLARE
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MALLOC_DECLARE(M_UFSMNT);
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#endif
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struct buf;
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struct inode;
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struct nameidata;
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struct timeval;
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struct ucred;
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struct uio;
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struct vnode;
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struct netexport;
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/* This structure describes the UFS specific mount structure data. */
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struct ufsmount {
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struct mount *um_mountp; /* filesystem vfs structure */
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dev_t um_dev; /* device mounted */
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struct vnode *um_devvp; /* block device mounted vnode */
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union { /* pointer to superblock */
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struct lfs *lfs; /* LFS */
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struct fs *fs; /* FFS */
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struct ext2_sb_info *e2fs; /* EXT2FS */
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} ufsmount_u;
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#define um_fs ufsmount_u.fs
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#define um_lfs ufsmount_u.lfs
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#define um_e2fs ufsmount_u.e2fs
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#define um_e2fsb ufsmount_u.e2fs->s_es
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struct vnode *um_quotas[MAXQUOTAS]; /* pointer to quota files */
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struct ucred *um_cred[MAXQUOTAS]; /* quota file access cred */
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u_long um_nindir; /* indirect ptrs per block */
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u_long um_bptrtodb; /* indir ptr to disk block */
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u_long um_seqinc; /* inc between seq blocks */
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time_t um_btime[MAXQUOTAS]; /* block quota time limit */
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time_t um_itime[MAXQUOTAS]; /* inode quota time limit */
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char um_qflags[MAXQUOTAS]; /* quota specific flags */
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struct netexport um_export; /* export information */
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int64_t um_savedmaxfilesize; /* XXX - limit maxfilesize */
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struct malloc_type *um_malloctype; /* The inodes malloctype */
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int (*um_blkatoff) __P((struct vnode *, off_t, char **, struct buf **));
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int (*um_truncate) __P((struct vnode *, off_t, int, struct ucred *, struct proc *));
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int (*um_update) __P((struct vnode *, struct timeval *, struct timeval *, int));
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int (*um_valloc) __P((struct vnode *, int, struct ucred *, struct vnode **));
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int (*um_vfree) __P((struct vnode *, ino_t, int));
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};
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#define UFS_BLKATOFF(aa, bb, cc, dd) VFSTOUFS((aa)->v_mount)->um_blkatoff(aa, bb, cc, dd)
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#define UFS_TRUNCATE(aa, bb, cc, dd, ee) VFSTOUFS((aa)->v_mount)->um_truncate(aa, bb, cc, dd, ee)
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#define UFS_UPDATE(aa, bb, cc, dd) VFSTOUFS((aa)->v_mount)->um_update(aa, bb, cc, dd)
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#define UFS_VALLOC(aa, bb, cc, dd) VFSTOUFS((aa)->v_mount)->um_valloc(aa, bb, cc, dd)
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#define UFS_VFREE(aa, bb, cc) VFSTOUFS((aa)->v_mount)->um_vfree(aa, bb, cc)
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/*
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* Flags describing the state of quotas.
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*/
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#define QTF_OPENING 0x01 /* Q_QUOTAON in progress */
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#define QTF_CLOSING 0x02 /* Q_QUOTAOFF in progress */
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/* Convert mount ptr to ufsmount ptr. */
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#define VFSTOUFS(mp) ((struct ufsmount *)((mp)->mnt_data))
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/*
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* Macros to access file system parameters in the ufsmount structure.
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* Used by ufs_bmap.
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*/
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#define MNINDIR(ump) ((ump)->um_nindir)
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#define blkptrtodb(ump, b) ((b) << (ump)->um_bptrtodb)
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#define is_sequential(ump, a, b) ((b) == (a) + ump->um_seqinc)
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#endif /* KERNEL */
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#endif
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