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34 * @(#)ufs_inode.c 8.9 (Berkeley) 5/14/95
37 #include <sys/cdefs.h>
38 __FBSDID("$FreeBSD$");
40 #include "opt_quota.h"
43 #include <sys/param.h>
44 #include <sys/systm.h>
45 #include <sys/vnode.h>
47 #include <sys/mount.h>
48 #include <sys/malloc.h>
49 #include <sys/mutex.h>
51 #include <ufs/ufs/extattr.h>
52 #include <ufs/ufs/quota.h>
53 #include <ufs/ufs/inode.h>
54 #include <ufs/ufs/ufsmount.h>
55 #include <ufs/ufs/ufs_extern.h>
57 #include <ufs/ufs/dir.h>
58 #include <ufs/ufs/dirhash.h>
61 #include <ufs/ufs/gjournal.h>
65 * Last reference to an inode. If necessary, write or delete it.
69 struct vop_inactive_args /* {
74 struct vnode *vp = ap->a_vp;
75 struct inode *ip = VTOI(vp);
76 struct thread *td = ap->a_td;
84 * Ignore inodes related to stale file handles.
89 ufs_gjournal_close(vp);
91 if ((ip->i_effnlink == 0 && DOINGSOFTDEP(vp)) ||
92 (ip->i_nlink <= 0 && !UFS_RDONLY(ip))) {
94 if (vn_start_secondary_write(vp, &mp, V_NOWAIT) != 0) {
95 /* Cannot delete file while file system is suspended */
96 if ((vp->v_iflag & VI_DOOMED) != 0) {
97 /* Cannot return before file is deleted */
98 (void) vn_start_secondary_write(vp, &mp,
102 if ((mp->mnt_kern_flag &
103 (MNTK_SUSPEND2 | MNTK_SUSPENDED)) == 0) {
108 * Fail to inactivate vnode now and
109 * let ffs_snapshot() clean up after
110 * it has resumed the file system.
113 vp->v_iflag |= VI_OWEINACT;
121 if (ip->i_ump->um_fstype == UFS2)
122 isize += ip->i_din2->di_extsize;
123 if (ip->i_effnlink <= 0 && isize && !UFS_RDONLY(ip))
124 error = UFS_TRUNCATE(vp, (off_t)0, IO_EXT | IO_NORMAL,
126 if (ip->i_nlink <= 0 && ip->i_mode && !UFS_RDONLY(ip)) {
128 if (!getinoquota(ip))
129 (void)chkiq(ip, -1, NOCRED, FORCE);
132 ufs_extattr_vnode_inactive(vp, td);
135 * Setting the mode to zero needs to wait for the inode
136 * to be written just as does a change to the link count.
137 * So, rather than creating a new entry point to do the
138 * same thing, we just use softdep_change_linkcnt().
140 DIP_SET(ip, i_rdev, 0);
143 DIP_SET(ip, i_mode, 0);
144 ip->i_flag |= IN_CHANGE | IN_UPDATE;
145 if (DOINGSOFTDEP(vp))
146 softdep_change_linkcnt(ip);
147 UFS_VFREE(vp, ip->i_number, mode);
149 if (ip->i_flag & (IN_ACCESS | IN_CHANGE | IN_MODIFIED | IN_UPDATE)) {
150 if ((ip->i_flag & (IN_CHANGE | IN_UPDATE | IN_MODIFIED)) == 0 &&
152 vn_start_secondary_write(vp, &mp, V_NOWAIT)) {
154 ip->i_flag &= ~IN_ACCESS;
157 (void) vn_start_secondary_write(vp, &mp,
164 * If we are done with the inode, reclaim it
165 * so that it can be reused immediately.
170 vn_finished_secondary_write(mp);
175 ufs_prepare_reclaim(struct vnode *vp)
184 vnode_destroy_vobject(vp);
186 for (i = 0; i < MAXQUOTAS; i++) {
187 if (ip->i_dquot[i] != NODQUOT) {
188 dqrele(vp, ip->i_dquot[i]);
189 ip->i_dquot[i] = NODQUOT;
194 if (ip->i_dirhash != NULL)
200 * Reclaim an inode so that it can be used for other purposes.
204 struct vop_reclaim_args /* {
209 struct vnode *vp = ap->a_vp;
210 struct inode *ip = VTOI(vp);
211 struct ufsmount *ump = ip->i_ump;
213 ufs_prepare_reclaim(vp);
215 if (ip->i_flag & IN_LAZYMOD)
216 ip->i_flag |= IN_MODIFIED;
219 * Remove the inode from its hash chain.
224 * Lock the clearing of v_data so ffs_lock() can inspect it
225 * prior to obtaining the lock.