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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);
83 * Ignore inodes related to stale file handles.
88 ufs_gjournal_close(vp);
92 * Before moving off the active list, we must be sure that
93 * any modified quotas have been pushed since these will no
94 * longer be checked once the vnode is on the inactive list.
98 if ((ip->i_effnlink == 0 && DOINGSOFTDEP(vp)) ||
99 (ip->i_nlink <= 0 && !UFS_RDONLY(ip))) {
101 if (vn_start_secondary_write(vp, &mp, V_NOWAIT) != 0) {
102 /* Cannot delete file while file system is suspended */
103 if ((vp->v_iflag & VI_DOOMED) != 0) {
104 /* Cannot return before file is deleted */
105 (void) vn_start_secondary_write(vp, &mp,
109 if ((mp->mnt_kern_flag &
110 (MNTK_SUSPEND2 | MNTK_SUSPENDED)) == 0) {
115 * Fail to inactivate vnode now and
116 * let ffs_snapshot() clean up after
117 * it has resumed the file system.
120 vp->v_iflag |= VI_OWEINACT;
128 if (ip->i_ump->um_fstype == UFS2)
129 isize += ip->i_din2->di_extsize;
130 if (ip->i_effnlink <= 0 && isize && !UFS_RDONLY(ip))
131 error = UFS_TRUNCATE(vp, (off_t)0, IO_EXT | IO_NORMAL, NOCRED);
132 if (ip->i_nlink <= 0 && ip->i_mode && !UFS_RDONLY(ip)) {
134 if (!getinoquota(ip))
135 (void)chkiq(ip, -1, NOCRED, FORCE);
138 ufs_extattr_vnode_inactive(vp, ap->a_td);
141 * Setting the mode to zero needs to wait for the inode
142 * to be written just as does a change to the link count.
143 * So, rather than creating a new entry point to do the
144 * same thing, we just use softdep_change_linkcnt().
146 DIP_SET(ip, i_rdev, 0);
149 DIP_SET(ip, i_mode, 0);
150 ip->i_flag |= IN_CHANGE | IN_UPDATE;
151 if (DOINGSOFTDEP(vp))
152 softdep_change_linkcnt(ip);
153 UFS_VFREE(vp, ip->i_number, mode);
155 if (ip->i_flag & (IN_ACCESS | IN_CHANGE | IN_MODIFIED | IN_UPDATE)) {
156 if ((ip->i_flag & (IN_CHANGE | IN_UPDATE | IN_MODIFIED)) == 0 &&
158 vn_start_secondary_write(vp, &mp, V_NOWAIT)) {
160 ip->i_flag &= ~IN_ACCESS;
163 (void) vn_start_secondary_write(vp, &mp,
170 * If we are done with the inode, reclaim it
171 * so that it can be reused immediately.
176 vn_finished_secondary_write(mp);
181 ufs_prepare_reclaim(struct vnode *vp)
190 vnode_destroy_vobject(vp);
192 for (i = 0; i < MAXQUOTAS; i++) {
193 if (ip->i_dquot[i] != NODQUOT) {
194 dqrele(vp, ip->i_dquot[i]);
195 ip->i_dquot[i] = NODQUOT;
200 if (ip->i_dirhash != NULL)
206 * Reclaim an inode so that it can be used for other purposes.
210 struct vop_reclaim_args /* {
215 struct vnode *vp = ap->a_vp;
216 struct inode *ip = VTOI(vp);
217 struct ufsmount *ump = ip->i_ump;
219 ufs_prepare_reclaim(vp);
221 if (ip->i_flag & IN_LAZYMOD)
222 ip->i_flag |= IN_MODIFIED;
225 * Remove the inode from its hash chain.
230 * Lock the clearing of v_data so ffs_lock() can inspect it
231 * prior to obtaining the lock.