/* $OpenBSD: ufsmount.h,v 1.13 2016/02/27 18:50:38 natano Exp $ */ /* $NetBSD: ufsmount.h,v 1.4 1994/12/21 20:00:23 mycroft Exp $ */ /* * Copyright (c) 1982, 1986, 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. * * @(#)ufsmount.h 8.4 (Berkeley) 10/27/94 */ struct buf; struct inode; struct nameidata; struct timeval; struct ucred; struct uio; struct vnode; struct netexport; /* This structure describes the UFS specific mount structure data. */ struct ufsmount { struct mount *um_mountp; /* filesystem vfs structure */ dev_t um_dev; /* device mounted */ struct vnode *um_devvp; /* block device mounted vnode */ u_long um_fstype; /* type of file system */ union { /* pointer to superblock */ struct fs *fs; /* FFS */ struct m_ext2fs *e2fs; /* EXT2FS */ } ufsmount_u; #define um_fs ufsmount_u.fs #define um_e2fs ufsmount_u.e2fs #define um_e2fsb ufsmount_u.e2fs->s_es struct vnode *um_quotas[MAXQUOTAS]; /* pointer to quota files */ struct ucred *um_cred[MAXQUOTAS]; /* quota file access cred */ u_long um_nindir; /* indirect ptrs per block */ u_long um_bptrtodb; /* indir ptr to disk block */ u_long um_seqinc; /* inc between seq blocks */ time_t um_btime[MAXQUOTAS]; /* block quota time limit */ time_t um_itime[MAXQUOTAS]; /* inode quota time limit */ char um_qflags[MAXQUOTAS]; /* quota specific flags */ struct netexport um_export; /* export information */ u_int64_t um_savedmaxfilesize; /* XXX - limit maxfilesize */ u_int um_maxsymlinklen; /* max size of short symlink */ }; /* * Filesystem types */ #define UM_UFS1 1 #define UM_UFS2 2 #define UM_EXT2FS 3 /* * Flags describing the state of quotas. */ #define QTF_OPENING 0x01 /* Q_QUOTAON in progress */ #define QTF_CLOSING 0x02 /* Q_QUOTAOFF in progress */ /* Convert mount ptr to ufsmount ptr. */ #define VFSTOUFS(mp) ((struct ufsmount *)((mp)->mnt_data)) /* * Macros to access file system parameters in the ufsmount structure. * Used by ufs_bmap. */ #define MNINDIR(ump) ((ump)->um_nindir) #define blkptrtodb(ump, b) ((b) << (ump)->um_bptrtodb) #define is_sequential(ump, a, b) ((b) == (a) + ump->um_seqinc)
