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29 * @(#)ufsmount.h 8.6 (Berkeley) 3/30/95
33 #ifndef _UFS_UFS_UFSMOUNT_H_
34 #define _UFS_UFS_UFSMOUNT_H_
36 #include <sys/buf.h> /* XXX For struct workhead. */
39 * Arguments to mount UFS-based filesystems
42 char *fspec; /* block special device to mount */
43 struct oexport_args export; /* network export information */
49 MALLOC_DECLARE(M_UFSMNT);
60 struct ufs_extattr_per_mount;
64 TAILQ_HEAD(inodedeplst, inodedep);
65 LIST_HEAD(bmsafemaphd, bmsafemap);
67 /* This structure describes the UFS specific mount structure data. */
69 struct mount *um_mountp; /* filesystem vfs structure */
70 struct cdev *um_dev; /* device mounted */
71 struct g_consumer *um_cp;
72 struct bufobj *um_bo; /* Buffer cache object */
73 struct vnode *um_devvp; /* block device mounted vnode */
74 u_long um_fstype; /* type of filesystem */
75 struct fs *um_fs; /* pointer to superblock */
76 struct ufs_extattr_per_mount um_extattr; /* extended attrs */
77 u_long um_nindir; /* indirect ptrs per block */
78 u_long um_bptrtodb; /* indir ptr to disk block */
79 u_long um_seqinc; /* inc between seq blocks */
80 struct mtx um_lock; /* Protects ufsmount & fs */
81 pid_t um_fsckpid; /* PID permitted fsck sysctls */
82 struct mount_softdeps *um_softdep; /* softdep mgmt structure */
83 struct vnode *um_quotas[MAXQUOTAS]; /* pointer to quota files */
84 struct ucred *um_cred[MAXQUOTAS]; /* quota file access cred */
85 time_t um_btime[MAXQUOTAS]; /* block quota time limit */
86 time_t um_itime[MAXQUOTAS]; /* inode quota time limit */
87 char um_qflags[MAXQUOTAS]; /* quota specific flags */
88 int64_t um_savedmaxfilesize; /* XXX - limit maxfilesize */
89 int um_candelete; /* devvp supports TRIM */
90 int um_writesuspended; /* suspension in progress */
91 u_int um_trim_inflight;
92 struct taskqueue *um_trim_tq;
93 int (*um_balloc)(struct vnode *, off_t, int, struct ucred *,
95 int (*um_blkatoff)(struct vnode *, off_t, char **, struct buf **);
96 int (*um_truncate)(struct vnode *, off_t, int, struct ucred *);
97 int (*um_update)(struct vnode *, int);
98 int (*um_valloc)(struct vnode *, int, struct ucred *,
100 int (*um_vfree)(struct vnode *, ino_t, int);
101 void (*um_ifree)(struct ufsmount *, struct inode *);
102 int (*um_rdonly)(struct inode *);
103 void (*um_snapgone)(struct inode *);
106 #define UFS_BALLOC(aa, bb, cc, dd, ee, ff) VFSTOUFS((aa)->v_mount)->um_balloc(aa, bb, cc, dd, ee, ff)
107 #define UFS_BLKATOFF(aa, bb, cc, dd) VFSTOUFS((aa)->v_mount)->um_blkatoff(aa, bb, cc, dd)
108 #define UFS_TRUNCATE(aa, bb, cc, dd) VFSTOUFS((aa)->v_mount)->um_truncate(aa, bb, cc, dd)
109 #define UFS_UPDATE(aa, bb) VFSTOUFS((aa)->v_mount)->um_update(aa, bb)
110 #define UFS_VALLOC(aa, bb, cc, dd) VFSTOUFS((aa)->v_mount)->um_valloc(aa, bb, cc, dd)
111 #define UFS_VFREE(aa, bb, cc) VFSTOUFS((aa)->v_mount)->um_vfree(aa, bb, cc)
112 #define UFS_IFREE(aa, bb) ((aa)->um_ifree(aa, bb))
113 #define UFS_RDONLY(aa) ((aa)->i_ump->um_rdonly(aa))
114 #define UFS_SNAPGONE(aa) ((aa)->i_ump->um_snapgone(aa))
116 #define UFS_LOCK(aa) mtx_lock(&(aa)->um_lock)
117 #define UFS_UNLOCK(aa) mtx_unlock(&(aa)->um_lock)
118 #define UFS_MTX(aa) (&(aa)->um_lock)
127 * Flags describing the state of quotas.
129 #define QTF_OPENING 0x01 /* Q_QUOTAON in progress */
130 #define QTF_CLOSING 0x02 /* Q_QUOTAOFF in progress */
131 #define QTF_64BIT 0x04 /* 64-bit quota file */
133 /* Convert mount ptr to ufsmount ptr. */
134 #define VFSTOUFS(mp) ((struct ufsmount *)((mp)->mnt_data))
135 #define UFSTOVFS(ump) (ump)->um_mountp
138 * Macros to access filesystem parameters in the ufsmount structure.
141 #define MNINDIR(ump) ((ump)->um_nindir)
142 #define blkptrtodb(ump, b) ((b) << (ump)->um_bptrtodb)
143 #define is_sequential(ump, a, b) ((b) == (a) + ump->um_seqinc)