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36 * @(#)ufs_inode.c 8.9 (Berkeley) 5/14/95
39 #include <sys/cdefs.h>
40 __FBSDID("$FreeBSD$");
42 #include "opt_quota.h"
45 #include <sys/param.h>
46 #include <sys/systm.h>
47 #include <sys/vnode.h>
49 #include <sys/mount.h>
50 #include <sys/malloc.h>
51 #include <sys/mutex.h>
53 #include <ufs/ufs/extattr.h>
54 #include <ufs/ufs/quota.h>
55 #include <ufs/ufs/inode.h>
56 #include <ufs/ufs/ufsmount.h>
57 #include <ufs/ufs/ufs_extern.h>
59 #include <ufs/ufs/dir.h>
60 #include <ufs/ufs/dirhash.h>
63 #include <ufs/ufs/gjournal.h>
68 struct vop_need_inactive_args *ap;
80 if (ip->i_mode == 0 || ip->i_nlink <= 0 ||
81 (ip->i_effnlink == 0 && DOINGSOFTDEP(vp)) ||
82 (ip->i_flag & (IN_ACCESS | IN_CHANGE | IN_MODIFIED |
84 (ip->i_effnlink <= 0 && (ip->i_size != 0 || (I_IS_UFS2(ip) &&
85 ip->i_din2->di_extsize != 0))))
88 for (i = 0; i < MAXQUOTAS; i++) {
89 if (ip->i_dquot[i] != NULL)
94 * No need to check ufs_gjournal_close() condition since we
95 * return 1 if only i_nlink <= 0.
101 * Last reference to an inode. If necessary, write or delete it.
105 struct vop_inactive_args /* {
110 struct vnode *vp = ap->a_vp;
111 struct inode *ip = VTOI(vp);
119 * Ignore inodes related to stale file handles.
124 ufs_gjournal_close(vp);
128 * Before moving off the active list, we must be sure that
129 * any modified quotas have been pushed since these will no
130 * longer be checked once the vnode is on the inactive list.
134 if ((ip->i_effnlink == 0 && DOINGSOFTDEP(vp)) ||
135 (ip->i_nlink <= 0 && !UFS_RDONLY(ip))) {
137 if (vn_start_secondary_write(vp, &mp, V_NOWAIT) != 0) {
138 /* Cannot delete file while file system is suspended */
139 if (VN_IS_DOOMED(vp)) {
140 /* Cannot return before file is deleted */
141 (void) vn_start_secondary_write(vp, &mp,
145 if ((mp->mnt_kern_flag &
146 (MNTK_SUSPEND2 | MNTK_SUSPENDED)) == 0) {
151 * Fail to inactivate vnode now and
152 * let ffs_snapshot() clean up after
153 * it has resumed the file system.
156 vp->v_iflag |= VI_OWEINACT;
165 isize += ip->i_din2->di_extsize;
166 if (ip->i_effnlink <= 0 && isize && !UFS_RDONLY(ip))
167 error = UFS_TRUNCATE(vp, (off_t)0, IO_EXT | IO_NORMAL, NOCRED);
168 if (ip->i_nlink <= 0 && ip->i_mode && !UFS_RDONLY(ip)) {
170 if (!getinoquota(ip))
171 (void)chkiq(ip, -1, NOCRED, FORCE);
174 ufs_extattr_vnode_inactive(vp, ap->a_td);
177 * Setting the mode to zero needs to wait for the inode
178 * to be written just as does a change to the link count.
179 * So, rather than creating a new entry point to do the
180 * same thing, we just use softdep_change_linkcnt().
182 DIP_SET(ip, i_rdev, 0);
185 DIP_SET(ip, i_mode, 0);
186 ip->i_flag |= IN_CHANGE | IN_UPDATE;
187 if (DOINGSOFTDEP(vp))
188 softdep_change_linkcnt(ip);
189 UFS_VFREE(vp, ip->i_number, mode);
191 if (ip->i_flag & (IN_ACCESS | IN_CHANGE | IN_MODIFIED | IN_UPDATE)) {
192 if ((ip->i_flag & (IN_CHANGE | IN_UPDATE | IN_MODIFIED)) == 0 &&
194 vn_start_secondary_write(vp, &mp, V_NOWAIT)) {
196 ip->i_flag &= ~IN_ACCESS;
199 (void) vn_start_secondary_write(vp, &mp,
206 * If we are done with the inode, reclaim it
207 * so that it can be reused immediately.
212 vn_finished_secondary_write(mp);
217 * Reclaim an inode so that it can be used for other purposes.
221 struct vop_reclaim_args /* {
226 struct vnode *vp = ap->a_vp;
227 struct inode *ip = VTOI(vp);
231 for (i = 0; i < MAXQUOTAS; i++) {
232 if (ip->i_dquot[i] != NODQUOT) {
233 dqrele(vp, ip->i_dquot[i]);
234 ip->i_dquot[i] = NODQUOT;
239 if (ip->i_dirhash != NULL)
243 if (ip->i_flag & IN_LAZYMOD)
244 ip->i_flag |= IN_MODIFIED;
247 * Remove the inode from its hash chain.
252 * Lock the clearing of v_data so ffs_lock() can inspect it
253 * prior to obtaining the lock.
258 UFS_IFREE(ITOUMP(ip), ip);