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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;
82 if (prtactive && vp->v_usecount != 0)
83 vprint("ufs_inactive: pushing active", vp);
85 * Ignore inodes related to stale file handles.
90 ufs_gjournal_close(vp);
92 if ((ip->i_effnlink == 0 && DOINGSOFTDEP(vp)) ||
93 (ip->i_nlink <= 0 && !UFS_RDONLY(ip))) {
95 if (vn_start_secondary_write(vp, &mp, V_NOWAIT) != 0) {
96 /* Cannot delete file while file system is suspended */
97 if ((vp->v_iflag & VI_DOOMED) != 0) {
98 /* Cannot return before file is deleted */
99 (void) vn_start_secondary_write(vp, &mp,
103 if ((mp->mnt_kern_flag &
104 (MNTK_SUSPEND2 | MNTK_SUSPENDED)) == 0) {
109 * Fail to inactivate vnode now and
110 * let ffs_snapshot() clean up after
111 * it has resumed the file system.
114 vp->v_iflag |= VI_OWEINACT;
121 if (ip->i_effnlink == 0 && DOINGSOFTDEP(vp))
122 softdep_releasefile(ip);
123 if (ip->i_nlink <= 0 && !UFS_RDONLY(ip)) {
125 if (!getinoquota(ip))
126 (void)chkiq(ip, -1, NOCRED, FORCE);
129 ufs_extattr_vnode_inactive(vp, td);
131 error = UFS_TRUNCATE(vp, (off_t)0, IO_EXT | IO_NORMAL,
134 * Setting the mode to zero needs to wait for the inode
135 * to be written just as does a change to the link count.
136 * So, rather than creating a new entry point to do the
137 * same thing, we just use softdep_change_linkcnt().
139 DIP_SET(ip, i_rdev, 0);
142 DIP_SET(ip, i_mode, 0);
143 ip->i_flag |= IN_CHANGE | IN_UPDATE;
144 if (DOINGSOFTDEP(vp))
145 softdep_change_linkcnt(ip);
146 UFS_VFREE(vp, ip->i_number, mode);
148 if (ip->i_flag & (IN_ACCESS | IN_CHANGE | IN_MODIFIED | IN_UPDATE)) {
149 if ((ip->i_flag & (IN_CHANGE | IN_UPDATE | IN_MODIFIED)) == 0 &&
151 vn_start_secondary_write(vp, &mp, V_NOWAIT)) {
153 ip->i_flag &= ~IN_ACCESS;
156 (void) vn_start_secondary_write(vp, &mp,
163 * If we are done with the inode, reclaim it
164 * so that it can be reused immediately.
169 vn_finished_secondary_write(mp);
174 * Reclaim an inode so that it can be used for other purposes.
178 struct vop_reclaim_args /* {
183 struct vnode *vp = ap->a_vp;
184 struct inode *ip = VTOI(vp);
185 struct ufsmount *ump = ip->i_ump;
190 if (prtactive && vp->v_usecount != 0)
191 vprint("ufs_reclaim: pushing active", vp);
193 * Destroy the vm object and flush associated pages.
195 vnode_destroy_vobject(vp);
196 if (ip->i_flag & IN_LAZYMOD)
197 ip->i_flag |= IN_MODIFIED;
200 * Remove the inode from its hash chain.
204 * Purge old data structures associated with the inode.
207 for (i = 0; i < MAXQUOTAS; i++) {
208 if (ip->i_dquot[i] != NODQUOT) {
209 dqrele(vp, ip->i_dquot[i]);
210 ip->i_dquot[i] = NODQUOT;
215 if (ip->i_dirhash != NULL)
219 * Lock the clearing of v_data so ffs_lock() can inspect it
220 * prior to obtaining the lock.