ufs/ffs/ffs_snapshot.c

116 ffs_snapgone(ip)
117 	struct inode *ip;
216 	struct inode *ip, *xp;
305 	ip = VTOI(vp);
306 	devvp = ITODEVVP(ip);
316 	ip->i_size = lblktosize(fs, (off_t)numblks);
317 	DIP_SET(ip, i_size, ip->i_size);
318 	ip->i_flag |= IN_SIZEMOD | IN_CHANGE | IN_UPDATE;
398 	ip->i_flags |= SF_SNAPSHOT;
399 	DIP_SET(ip, i_flags, ip->i_flags);
400 	ip->i_flag |= IN_CHANGE | IN_UPDATE;
438 	if (ip->i_effnlink == 0) {
678 	fs->fs_snapinum[snaploc] = ip->i_number;
679 	if (ip->i_nextsnap.tqe_prev != 0)
681 		    (uintmax_t)ip->i_number);
682 	TAILQ_INSERT_TAIL(&sn->sn_head, ip, i_nextsnap);
708 		if (xp == ip)
733 	ip->i_snapblklist = &snapblklist[1];
739 	if (I_IS_UFS1(ip))
740 		error = expunge_ufs1(vp, ip, copy_fs, mapacct_ufs1,
743 		error = expunge_ufs2(vp, ip, copy_fs, mapacct_ufs2,
750 	if (snaplistsize < ip->i_snapblklist - snapblklist)
752 	snaplistsize = ip->i_snapblklist - snapblklist;
754 	ip->i_snapblklist = 0;
763 	auio.uio_offset = ip->i_size;
821 		if (DIP(ip, i_db[blockno]) != 0)
884 	struct inode *ip;
890 	ip = VTOI(vp);
891 	fs = ITOFS(ip);
892 	error = bread(ITODEVVP(ip), fsbtodb(fs, cgtod(fs, cg)),
903 	UFS_LOCK(ITOUMP(ip));
912 	UFS_UNLOCK(ITOUMP(ip));
930 				DIP_SET(ip, i_db[loc], BLK_NOCOPY);
931 			else if (passno == 2 && DIP(ip, i_db[loc])== BLK_NOCOPY)
932 				DIP_SET(ip, i_db[loc], 0);
933 			else if (passno == 1 && DIP(ip, i_db[loc])== BLK_NOCOPY)
956 		if (I_IS_UFS1(ip)) {
1189 	struct inode *ip = VTOI(vp);
1201 			blkp = &ip->i_din1->di_db[lbn];
1202 			ip->i_flag |= IN_CHANGE | IN_UPDATE;
1243 	struct inode *ip;
1247 	ip = VTOI(vp);
1248 	inum = ip->i_number;
1258 			*ip->i_snapblklist++ = lblkno;
1261 		ffs_blkfree(ITOUMP(ip), fs, vp, blkno, fs->fs_bsize, inum,
1473 	struct inode *ip = VTOI(vp);
1485 			blkp = &ip->i_din2->di_db[lbn];
1486 			ip->i_flag |= IN_CHANGE | IN_UPDATE;
1527 	struct inode *ip;
1531 	ip = VTOI(vp);
1532 	inum = ip->i_number;
1542 			*ip->i_snapblklist++ = lblkno;
1545 		ffs_blkfree(ITOUMP(ip), fs, vp, blkno, fs->fs_bsize, inum,
1556 ffs_snapgone(ip)
1557 	struct inode *ip;
1569 	sn = ITODEVVP(ip)->v_rdev->si_snapdata;
1572 			if (xp == ip)
1575 		vrele(ITOV(ip));
1578 		    (uintmax_t)ip->i_number);
1582 	ump = ITOUMP(ip);
1586 		if (fs->fs_snapinum[snaploc] == ip->i_number)
1606 	struct inode *ip;
1614 	ip = VTOI(vp);
1615 	fs = ITOFS(ip);
1616 	devvp = ITODEVVP(ip);
1625 	if (ip->i_nextsnap.tqe_prev != 0) {
1627 		TAILQ_REMOVE(&sn->sn_head, ip, i_nextsnap);
1628 		ip->i_nextsnap.tqe_prev = 0;
1648 		dblk = DIP(ip, i_db[blkno]);
1652 			DIP_SET(ip, i_db[blkno], 0);
1654 		     ffs_snapblkfree(fs, ITODEVVP(ip), dblk, fs->fs_bsize,
1655 		     ip->i_number, vp->v_type, NULL))) {
1656 			DIP_SET(ip, i_blocks, DIP(ip, i_blocks) -
1658 			DIP_SET(ip, i_db[blkno], 0);
1661 	numblks = howmany(ip->i_size, fs->fs_bsize);
1672 			if (I_IS_UFS1(ip)) {
1679 				     ffs_snapblkfree(fs, ITODEVVP(ip), dblk,
1680 				     fs->fs_bsize, ip->i_number, vp->v_type,
1682 					ip->i_din1->di_blocks -=
1694 			     ffs_snapblkfree(fs, ITODEVVP(ip), dblk,
1695 			     fs->fs_bsize, ip->i_number, vp->v_type, NULL))) {
1696 				ip->i_din2->di_blocks -= btodb(fs->fs_bsize);
1705 	ip->i_flags &= ~SF_SNAPSHOT;
1706 	DIP_SET(ip, i_flags, ip->i_flags);
1707 	ip->i_flag |= IN_CHANGE | IN_UPDATE;
1719 	if (!getinoquota(ip))
1720 		(void) chkdq(ip, DIP(ip, i_blocks), KERNCRED, FORCE);
1754 	struct inode *ip;
1772 	TAILQ_FOREACH(ip, &sn->sn_head, i_nextsnap) {
1773 		vp = ITOV(ip);
1780 			blkno = DIP(ip, i_db[lbn]);
1789 			if (I_IS_UFS1(ip))
1812 				DIP_SET(ip, i_db[lbn], BLK_NOCOPY);
1813 				ip->i_flag |= IN_CHANGE | IN_UPDATE;
1814 			} else if (I_IS_UFS1(ip)) {
1846 				    (uintmax_t)ip->i_number,
1855 					softdep_inode_append(ip,
1861 				DIP_SET(ip, i_db[lbn], bno);
1862 			} else if (I_IS_UFS1(ip)) {
1869 			DIP_SET(ip, i_blocks, DIP(ip, i_blocks) + btodb(size));
1870 			ip->i_flag |= IN_CHANGE | IN_UPDATE;
1890 			    "Copyonremove: snapino ", (uintmax_t)ip->i_number,
1908 			    ip->i_effnlink > 0)
1919 			    ip->i_effnlink > 0)
1966 	struct inode *ip;
1993 		ip = VTOI(vp);
1996 		} else if (!IS_SNAPSHOT(ip)) {
1998 		} else if (ip->i_size ==
2035 		if (ip->i_nextsnap.tqe_prev != 0)
2037 			    (uintmax_t)ip->i_number);
2039 			TAILQ_INSERT_TAIL(&sn->sn_head, ip, i_nextsnap);
2252 	struct inode *ip;
2274 	ip = TAILQ_FIRST(&sn->sn_head);
2275 	fs = ITOFS(ip);
2321 	TAILQ_FOREACH(ip, &sn->sn_head, i_nextsnap) {
2322 		vp = ITOV(ip);
2340 			blkno = DIP(ip, i_db[lbn]);
2349 			if (I_IS_UFS1(ip))
2380 			    (uintmax_t)ip->i_number, (intmax_t)lbn);
2404 			    dopersistence) && ip->i_effnlink > 0)
2417 			    dopersistence) && ip->i_effnlink > 0)
2469 	struct inode *ip;
2486 	TAILQ_FOREACH(ip, &sn->sn_head, i_nextsnap) {
2487 		vp = ITOV(ip);
2503 	struct inode *ip = VTOI(vp);
2507 	ip = VTOI(vp);
2508 	fs = ITOFS(ip);
2517 	g_io_request(bip, ITODEVVP(ip)->v_bufobj.bo_private);
2534 	struct inode *ip;
2562 		ip = VTOI(vp);
2563 		if ((ip->i_flag & IN_LAZYACCESS) != 0) {
2564 			ip->i_flag &= ~IN_LAZYACCESS;
2565 			ip->i_flag |= IN_MODIFIED;