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31 * @(#)ufsmount.h 8.6 (Berkeley) 3/30/95
35 #ifndef _UFS_UFS_UFSMOUNT_H_
36 #define _UFS_UFS_UFSMOUNT_H_
39 * Arguments to mount UFS-based filesystems
42 char *fspec; /* block special device to mount */
43 struct oexport_args export; /* network export information */
48 #include <sys/_task.h>
51 MALLOC_DECLARE(M_UFSMNT);
52 MALLOC_DECLARE(M_TRIM);
63 struct ufs_extattr_per_mount;
67 TAILQ_HEAD(inodedeplst, inodedep);
68 LIST_HEAD(bmsafemaphd, bmsafemap);
69 LIST_HEAD(trimlist_hashhead, ffs_blkfree_trim_params);
76 * This structure describes the UFS specific mount structure data.
77 * The function operators are used to support different versions of
78 * UFS (UFS1, UFS2, etc).
81 * c - set at allocation then constant until freed
82 * i - ufsmount interlock (UFS_LOCK / UFS_UNLOCK)
83 * q - associated quota file is locked
84 * r - ref to parent mount structure is held (vfs_busy / vfs_unbusy)
85 * u - managed by user process fsck_ufs
88 struct mount *um_mountp; /* (r) filesystem vfs struct */
89 struct cdev *um_dev; /* (r) device mounted */
90 struct g_consumer *um_cp; /* (r) GEOM access point */
91 struct bufobj *um_bo; /* (r) Buffer cache object */
92 struct vnode *um_odevvp; /* (r) devfs dev vnode */
93 struct vnode *um_devvp; /* (r) mntfs private vnode */
94 u_long um_fstype; /* (c) type of filesystem */
95 struct fs *um_fs; /* (r) pointer to superblock */
96 struct ufs_extattr_per_mount um_extattr; /* (c) extended attrs */
97 u_long um_nindir; /* (c) indirect ptrs per blk */
98 u_long um_bptrtodb; /* (c) indir disk block ptr */
99 u_long um_seqinc; /* (c) inc between seq blocks */
100 struct mtx um_lock; /* (c) Protects ufsmount & fs */
101 pid_t um_fsckpid; /* (u) PID can do fsck sysctl */
102 struct mount_softdeps *um_softdep; /* (c) softdep mgmt structure */
103 struct vnode *um_quotas[MAXQUOTAS]; /* (q) pointer to quota files */
104 struct ucred *um_cred[MAXQUOTAS]; /* (q) quota file access cred */
105 time_t um_btime[MAXQUOTAS]; /* (q) block quota time limit */
106 time_t um_itime[MAXQUOTAS]; /* (q) inode quota time limit */
107 char um_qflags[MAXQUOTAS]; /* (i) quota specific flags */
108 int64_t um_savedmaxfilesize; /* (c) track maxfilesize */
109 u_int um_flags; /* (i) filesystem flags */
110 struct timeval um_last_fullmsg; /* (i) last full msg time */
111 int um_secs_fullmsg; /* (i) seconds since full msg */
112 struct timeval um_last_integritymsg; /* (i) last integrity msg */
113 int um_secs_integritymsg; /* (i) secs since integ msg */
114 u_int um_trim_inflight; /* (i) outstanding trim count */
115 u_int um_trim_inflight_blks; /* (i) outstanding trim blks */
116 u_long um_trim_total; /* (i) total trim count */
117 u_long um_trim_total_blks; /* (i) total trim block count */
118 struct taskqueue *um_trim_tq; /* (c) trim request queue */
119 struct trimlist_hashhead *um_trimhash; /* (i) trimlist hash table */
120 u_long um_trimlisthashsize; /* (i) trim hash table size-1 */
121 struct fsfail_task *um_fsfail_task; /* (i) task for fsfail cleanup*/
122 /* (c) - below function ptrs */
123 int (*um_balloc)(struct vnode *, off_t, int, struct ucred *,
125 int (*um_blkatoff)(struct vnode *, off_t, char **, struct buf **);
126 int (*um_truncate)(struct vnode *, off_t, int, struct ucred *);
127 int (*um_update)(struct vnode *, int);
128 int (*um_valloc)(struct vnode *, int, struct ucred *,
130 int (*um_vfree)(struct vnode *, ino_t, int);
131 void (*um_ifree)(struct ufsmount *, struct inode *);
132 int (*um_rdonly)(struct inode *);
133 void (*um_snapgone)(struct inode *);
134 int (*um_check_blkno)(struct mount *, ino_t, daddr_t, int);
140 #define UM_CANDELETE 0x00000001 /* devvp supports TRIM */
141 #define UM_WRITESUSPENDED 0x00000002 /* suspension in progress */
142 #define UM_CANSPEEDUP 0x00000004 /* devvp supports SPEEDUP */
143 #define UM_FSFAIL_CLEANUP 0x00000008 /* need cleanup after
144 unrecoverable error */
146 * function prototypes
148 #define UFS_BALLOC(aa, bb, cc, dd, ee, ff) \
149 VFSTOUFS((aa)->v_mount)->um_balloc(aa, bb, cc, dd, ee, ff)
150 #define UFS_BLKATOFF(aa, bb, cc, dd) \
151 VFSTOUFS((aa)->v_mount)->um_blkatoff(aa, bb, cc, dd)
152 #define UFS_TRUNCATE(aa, bb, cc, dd) \
153 VFSTOUFS((aa)->v_mount)->um_truncate(aa, bb, cc, dd)
154 #define UFS_UPDATE(aa, bb) VFSTOUFS((aa)->v_mount)->um_update(aa, bb)
155 #define UFS_VALLOC(aa, bb, cc, dd) \
156 VFSTOUFS((aa)->v_mount)->um_valloc(aa, bb, cc, dd)
157 #define UFS_VFREE(aa, bb, cc) VFSTOUFS((aa)->v_mount)->um_vfree(aa, bb, cc)
158 #define UFS_IFREE(aa, bb) ((aa)->um_ifree(aa, bb))
159 #define UFS_RDONLY(aa) (ITOUMP(aa)->um_rdonly(aa))
160 #define UFS_SNAPGONE(aa) (ITOUMP(aa)->um_snapgone(aa))
161 #define UFS_CHECK_BLKNO(aa, bb, cc, dd) \
162 (VFSTOUFS(aa)->um_check_blkno == NULL ? 0 : \
163 VFSTOUFS(aa)->um_check_blkno(aa, bb, cc, dd))
165 #define UFS_LOCK(aa) mtx_lock(&(aa)->um_lock)
166 #define UFS_UNLOCK(aa) mtx_unlock(&(aa)->um_lock)
167 #define UFS_MTX(aa) (&(aa)->um_lock)
176 * Flags describing the state of quotas.
178 #define QTF_OPENING 0x01 /* Q_QUOTAON in progress */
179 #define QTF_CLOSING 0x02 /* Q_QUOTAOFF in progress */
180 #define QTF_64BIT 0x04 /* 64-bit quota file */
182 /* Convert mount ptr to ufsmount ptr. */
183 #define VFSTOUFS(mp) ((struct ufsmount *)((mp)->mnt_data))
184 #define UFSTOVFS(ump) (ump)->um_mountp
187 * Macros to access filesystem parameters in the ufsmount structure.
190 #define MNINDIR(ump) ((ump)->um_nindir)
191 #define blkptrtodb(ump, b) ((b) << (ump)->um_bptrtodb)
192 #define is_sequential(ump, a, b) ((b) == (a) + ump->um_seqinc)