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Diffstat (limited to 'sys/gnu/fs/ext2fs/ext2_mount.h')
| -rw-r--r-- | sys/gnu/fs/ext2fs/ext2_mount.h | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/sys/gnu/fs/ext2fs/ext2_mount.h b/sys/gnu/fs/ext2fs/ext2_mount.h new file mode 100644 index 0000000..237871f --- /dev/null +++ b/sys/gnu/fs/ext2fs/ext2_mount.h @@ -0,0 +1,83 @@ +/* + * 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. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. 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 8.2 (Berkeley) 1/12/94 + */ + +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 */ + union { /* pointer to superblock */ + struct lfs *lfs; /* LFS */ + struct fs *fs; /* FFS */ + } ufsmount_u; +#define um_fs ufsmount_u.fs +#define um_lfs ufsmount_u.lfs + 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 */ +}; +/* + * 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 blkptrtodb(ump, b) ((b) << (ump)->um_bptrtodb) +#define is_sequential(ump, a, b) ((b) == (a) + ump->um_seqinc) +#define MNINDIR(ump) ((ump)->um_nindir) + + |
