1 /* 2 * Copyright (c) 1982, 1986, 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 * 7 * @(#)ufsmount.h 8.1 (Berkeley) 06/11/93 8 */ 9 10 struct buf; 11 struct inode; 12 struct nameidata; 13 struct timeval; 14 struct ucred; 15 struct uio; 16 struct vnode; 17 struct radix_node_head; 18 #ifndef AF_MAX 19 #include <sys/socket.h> 20 #endif 21 22 /* This structure describes the UFS specific mount structure data. */ 23 struct ufsmount { 24 struct mount *um_mountp; /* filesystem vfs structure */ 25 dev_t um_dev; /* device mounted */ 26 struct vnode *um_devvp; /* block device mounted vnode */ 27 union { /* pointer to superblock */ 28 struct lfs *lfs; /* LFS */ 29 struct fs *fs; /* FFS */ 30 } ufsmount_u; 31 #define um_fs ufsmount_u.fs 32 #define um_lfs ufsmount_u.lfs 33 struct vnode *um_quotas[MAXQUOTAS]; /* pointer to quota files */ 34 struct ucred *um_cred[MAXQUOTAS]; /* quota file access cred */ 35 u_long um_nindir; /* indirect ptrs per block */ 36 u_long um_bptrtodb; /* indir ptr to disk block */ 37 u_long um_seqinc; /* inc between seq blocks */ 38 time_t um_btime[MAXQUOTAS]; /* block quota time limit */ 39 time_t um_itime[MAXQUOTAS]; /* inode quota time limit */ 40 char um_qflags[MAXQUOTAS]; /* quota specific flags */ 41 struct netcred um_defexported; /* Default export */ 42 struct radix_node_head *um_rtable[AF_MAX+1]; /* Individual exports */ 43 }; 44 /* 45 * Flags describing the state of quotas. 46 */ 47 #define QTF_OPENING 0x01 /* Q_QUOTAON in progress */ 48 #define QTF_CLOSING 0x02 /* Q_QUOTAOFF in progress */ 49 50 /* Convert mount ptr to ufsmount ptr. */ 51 #define VFSTOUFS(mp) ((struct ufsmount *)((mp)->mnt_data)) 52 53 /* 54 * Macros to access file system parameters in the ufsmount structure. 55 * Used by ufs_bmap. 56 */ 57 #define blkptrtodb(ump, b) ((b) << (ump)->um_bptrtodb) 58 #define is_sequential(ump, a, b) ((b) == (a) + ump->um_seqinc) 59 #define MNINDIR(ump) ((ump)->um_nindir) 60 61 62