diff -urN linux-2.4.16/fs/ext2/ialloc.c linux-2.4.16-immutable/fs/ext2/ialloc.c
--- linux-2.4.16/fs/ext2/ialloc.c	Mon Dec 10 13:12:48 2001
+++ linux-2.4.16-immutable/fs/ext2/ialloc.c	Mon Dec 10 13:48:14 2001
@@ -389,7 +389,7 @@
 	inode->u.ext2_i.i_new_inode = 1;
 	inode->u.ext2_i.i_flags = dir->u.ext2_i.i_flags;
 	if (S_ISLNK(mode))
-		inode->u.ext2_i.i_flags &= ~(EXT2_IMMUTABLE_FL|EXT2_APPEND_FL);
+		inode->u.ext2_i.i_flags &= ~(EXT2_IMMUTABLE_FILE_FL|EXT2_IMMUTABLE_LINK_FL|EXT2_APPEND_FL);
 	inode->u.ext2_i.i_block_group = group;
 	if (inode->u.ext2_i.i_flags & EXT2_SYNC_FL)
 		inode->i_flags |= S_SYNC;
diff -urN linux-2.4.16/fs/ext2/inode.c linux-2.4.16-immutable/fs/ext2/inode.c
--- linux-2.4.16/fs/ext2/inode.c	Mon Dec 10 13:12:48 2001
+++ linux-2.4.16-immutable/fs/ext2/inode.c	Mon Dec 10 13:46:43 2001
@@ -801,7 +801,7 @@
 	if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
 	    S_ISLNK(inode->i_mode)))
 		return;
-	if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
+	if (IS_APPEND(inode) || IS_IMMUTABLE_FILE(inode))
 		return;
 
 	ext2_discard_prealloc(inode);
@@ -1007,9 +1007,13 @@
 		inode->i_attr_flags |= ATTR_FLAG_APPEND;
 		inode->i_flags |= S_APPEND;
 	}
-	if (inode->u.ext2_i.i_flags & EXT2_IMMUTABLE_FL) {
-		inode->i_attr_flags |= ATTR_FLAG_IMMUTABLE;
-		inode->i_flags |= S_IMMUTABLE;
+	if (inode->u.ext2_i.i_flags & EXT2_IMMUTABLE_FILE_FL) {
+		inode->i_attr_flags |= ATTR_FLAG_IMMUTABLE_FILE;
+		inode->i_flags |= S_IMMUTABLE_FILE;
+	}
+	if (inode->u.ext2_i.i_flags & EXT2_IMMUTABLE_LINK_FL) {
+		inode->i_attr_flags |= ATTR_FLAG_IMMUTABLE_LINK;
+		inode->i_flags |= S_IMMUTABLE_LINK;
 	}
 	if (inode->u.ext2_i.i_flags & EXT2_NOATIME_FL) {
 		inode->i_attr_flags |= ATTR_FLAG_NOATIME;
diff -urN linux-2.4.16/fs/ext2/ioctl.c linux-2.4.16-immutable/fs/ext2/ioctl.c
--- linux-2.4.16/fs/ext2/ioctl.c	Wed Sep 27 21:41:33 2000
+++ linux-2.4.16-immutable/fs/ext2/ioctl.c	Mon Dec 10 13:46:43 2001
@@ -44,7 +44,7 @@
 		 *
 		 * This test looks nicer. Thanks to Pauline Middelink
 		 */
-		if ((flags ^ oldflags) & (EXT2_APPEND_FL | EXT2_IMMUTABLE_FL)) {
+		if ((flags ^ oldflags) & (EXT2_APPEND_FL | EXT2_IMMUTABLE_FILE_FL | EXT2_IMMUTABLE_LINK_FL)) {
 			if (!capable(CAP_LINUX_IMMUTABLE))
 				return -EPERM;
 		}
@@ -61,10 +61,17 @@
 			inode->i_flags |= S_APPEND;
 		else
 			inode->i_flags &= ~S_APPEND;
-		if (flags & EXT2_IMMUTABLE_FL)
-			inode->i_flags |= S_IMMUTABLE;
+
+		if (flags & EXT2_IMMUTABLE_FILE_FL)
+			inode->i_flags |= S_IMMUTABLE_FILE;
+		else
+			inode->i_flags &= ~S_IMMUTABLE_FILE;
+
+		if (flags & EXT2_IMMUTABLE_LINK_FL)
+			inode->i_flags |= S_IMMUTABLE_LINK;
 		else
-			inode->i_flags &= ~S_IMMUTABLE;
+			inode->i_flags &= ~S_IMMUTABLE_LINK;
+
 		if (flags & EXT2_NOATIME_FL)
 			inode->i_flags |= S_NOATIME;
 		else
diff -urN linux-2.4.16/fs/ext3/ialloc.c linux-2.4.16-immutable/fs/ext3/ialloc.c
--- linux-2.4.16/fs/ext3/ialloc.c	Mon Dec 10 13:12:48 2001
+++ linux-2.4.16-immutable/fs/ext3/ialloc.c	Mon Dec 10 13:46:43 2001
@@ -486,7 +486,7 @@
 	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
 	inode->u.ext3_i.i_flags = dir->u.ext3_i.i_flags & ~EXT3_INDEX_FL;
 	if (S_ISLNK(mode))
-		inode->u.ext3_i.i_flags &= ~(EXT3_IMMUTABLE_FL|EXT3_APPEND_FL);
+		inode->u.ext3_i.i_flags &= ~(EXT3_IMMUTABLE_FILE_FL|EXT3_IMMUTABLE_LINK_FL|EXT3_APPEND_FL);
 #ifdef EXT3_FRAGMENTS
 	inode->u.ext3_i.i_faddr = 0;
 	inode->u.ext3_i.i_frag_no = 0;
diff -urN linux-2.4.16/fs/ext3/inode.c linux-2.4.16-immutable/fs/ext3/inode.c
--- linux-2.4.16/fs/ext3/inode.c	Mon Dec 10 13:12:48 2001
+++ linux-2.4.16-immutable/fs/ext3/inode.c	Mon Dec 10 13:46:43 2001
@@ -1823,7 +1823,7 @@
 	if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
 	    S_ISLNK(inode->i_mode)))
 		return;
-	if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
+	if (IS_APPEND(inode) || IS_IMMUTABLE_FILE(inode))
 		return;
 
 	ext3_discard_prealloc(inode);
@@ -2127,9 +2127,13 @@
 		/* inode->i_attr_flags |= ATTR_FLAG_APPEND;	unused */
 		inode->i_flags |= S_APPEND;
 	}
-	if (inode->u.ext3_i.i_flags & EXT3_IMMUTABLE_FL) {
-		/* inode->i_attr_flags |= ATTR_FLAG_IMMUTABLE;	unused */
-		inode->i_flags |= S_IMMUTABLE;
+	if (inode->u.ext3_i.i_flags & EXT3_IMMUTABLE_FILE_FL) {
+		/* inode->i_attr_flags |= ATTR_FLAG_IMMUTABLE_FILE;	unused */
+		inode->i_flags |= S_IMMUTABLE_FILE;
+	}
+	if (inode->u.ext3_i.i_flags & EXT3_IMMUTABLE_LINK_FL) {
+		/* inode->i_attr_flags |= ATTR_FLAG_IMMUTABLE_FILE;	unused */
+		inode->i_flags |= S_IMMUTABLE_LINK;
 	}
 	if (inode->u.ext3_i.i_flags & EXT3_NOATIME_FL) {
 		/* inode->i_attr_flags |= ATTR_FLAG_NOATIME;	unused */
diff -urN linux-2.4.16/fs/ext3/ioctl.c linux-2.4.16-immutable/fs/ext3/ioctl.c
--- linux-2.4.16/fs/ext3/ioctl.c	Mon Dec 10 13:12:48 2001
+++ linux-2.4.16-immutable/fs/ext3/ioctl.c	Mon Dec 10 13:46:43 2001
@@ -53,7 +53,7 @@
 		 *
 		 * This test looks nicer. Thanks to Pauline Middelink
 		 */
-		if ((flags ^ oldflags) & (EXT3_APPEND_FL | EXT3_IMMUTABLE_FL)) {
+		if ((flags ^ oldflags) & (EXT3_APPEND_FL | EXT3_IMMUTABLE_FILE_FL | EXT3_IMMUTABLE_LINK_FL)) {
 			if (!capable(CAP_LINUX_IMMUTABLE))
 				return -EPERM;
 		}
@@ -89,10 +89,14 @@
 			inode->i_flags |= S_APPEND;
 		else
 			inode->i_flags &= ~S_APPEND;
-		if (flags & EXT3_IMMUTABLE_FL)
-			inode->i_flags |= S_IMMUTABLE;
+		if (flags & EXT3_IMMUTABLE_FILE_FL)
+			inode->i_flags |= S_IMMUTABLE_FILE;
 		else
-			inode->i_flags &= ~S_IMMUTABLE;
+			inode->i_flags &= ~S_IMMUTABLE_FILE;
+		if (flags & EXT3_IMMUTABLE_LINK_FL)
+			inode->i_flags |= S_IMMUTABLE_LINK;
+		else
+			inode->i_flags &= ~S_IMMUTABLE_LINK;
 		if (flags & EXT3_NOATIME_FL)
 			inode->i_flags |= S_NOATIME;
 		else
diff -urN linux-2.4.16/fs/fat/file.c linux-2.4.16-immutable/fs/fat/file.c
--- linux-2.4.16/fs/fat/file.c	Sun Aug 12 18:56:56 2001
+++ linux-2.4.16-immutable/fs/fat/file.c	Mon Dec 10 13:46:43 2001
@@ -119,7 +119,7 @@
 	/* Why no return value?  Surely the disk could fail... */
 	if (IS_RDONLY (inode))
 		return /* -EPERM */;
-	if (IS_IMMUTABLE(inode))
+	if (IS_IMMUTABLE_FILE(inode))
 		return /* -EPERM */;
 	cluster = 1 << sbi->cluster_bits;
 	/* 
diff -urN linux-2.4.16/fs/fat/inode.c linux-2.4.16-immutable/fs/fat/inode.c
--- linux-2.4.16/fs/fat/inode.c	Mon Dec 10 13:12:48 2001
+++ linux-2.4.16-immutable/fs/fat/inode.c	Mon Dec 10 13:46:43 2001
@@ -947,7 +947,7 @@
 	}
 	if(de->attr & ATTR_SYS)
 		if (sbi->options.sys_immutable)
-			inode->i_flags |= S_IMMUTABLE;
+			inode->i_flags |= S_IMMUTABLE_FILE;
 	MSDOS_I(inode)->i_attrs = de->attr & ATTR_UNUSED;
 	/* this is as close to the truth as we can get ... */
 	inode->i_blksize = 1 << sbi->cluster_bits;
diff -urN linux-2.4.16/fs/hpfs/file.c linux-2.4.16-immutable/fs/hpfs/file.c
--- linux-2.4.16/fs/hpfs/file.c	Mon Aug 13 01:37:53 2001
+++ linux-2.4.16-immutable/fs/hpfs/file.c	Mon Dec 10 13:46:43 2001
@@ -60,7 +60,7 @@
 
 void hpfs_truncate(struct inode *i)
 {
-	if (IS_IMMUTABLE(i)) return /*-EPERM*/;
+	if (IS_IMMUTABLE_FILE(i)) return /*-EPERM*/;
 	i->i_hpfs_n_secs = 0;
 	i->i_blocks = 1 + ((i->i_size + 511) >> 9);
 	i->u.hpfs_i.mmu_private = i->i_size;
diff -urN linux-2.4.16/fs/intermezzo/vfs.c linux-2.4.16-immutable/fs/intermezzo/vfs.c
--- linux-2.4.16/fs/intermezzo/vfs.c	Mon Dec 10 13:12:48 2001
+++ linux-2.4.16-immutable/fs/intermezzo/vfs.c	Mon Dec 10 13:46:43 2001
@@ -89,7 +89,7 @@
         if (IS_APPEND(dir))
                 return -EPERM;
         if (check_sticky(dir, victim->d_inode)||IS_APPEND(victim->d_inode)||
-            IS_IMMUTABLE(victim->d_inode))
+            IS_IMMUTABLE_LINK(victim->d_inode))
                 return -EPERM;
         if (isdir) {
                 if (!S_ISDIR(victim->d_inode->i_mode))
@@ -190,7 +190,7 @@
                 return -EROFS;
         }
 
-        if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) {
+        if (IS_IMMUTABLE_FILE(inode) || IS_APPEND(inode)) {
                 EXIT;
                 return -EPERM;
         }
@@ -231,7 +231,7 @@
                 return -EROFS;
         }
 
-        if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) {
+        if (IS_IMMUTABLE_FILE(inode) || IS_APPEND(inode)) {
                 EXIT;
                 return -EPERM;
         }
@@ -609,7 +609,7 @@
          * A link to an append-only or immutable file cannot be created.
          */
         error = -EPERM;
-        if (IS_APPEND(inode) || IS_IMMUTABLE(inode)) {
+        if (IS_APPEND(inode) || IS_IMMUTABLE_LINK(inode)) {
                 EXIT;
                 goto exit_lock;
         }
@@ -2201,7 +2201,9 @@
                 return -EROFS;
         }
 
-        if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) {
+	/* Oh gawd.  Should this be IS_IMMUTABLE_FILE or
+           IS_IMMUTABLE_LINK? */
+        if (IS_IMMUTABLE_FILE(inode) || IS_APPEND(inode)) {
                 EXIT;
                 return -EPERM;
         }
diff -urN linux-2.4.16/fs/namei.c linux-2.4.16-immutable/fs/namei.c
--- linux-2.4.16/fs/namei.c	Mon Dec 10 13:12:23 2001
+++ linux-2.4.16-immutable/fs/namei.c	Mon Dec 10 13:46:43 2001
@@ -162,7 +162,7 @@
 		/*
 		 * Nobody gets write access to an immutable file.
 		 */
-		if (IS_IMMUTABLE(inode))
+		if (IS_IMMUTABLE_FILE(inode))
 			return -EACCES;
 	}
 
@@ -877,8 +877,7 @@
 		return error;
 	if (IS_APPEND(dir))
 		return -EPERM;
-	if (check_sticky(dir, victim->d_inode)||IS_APPEND(victim->d_inode)||
-	    IS_IMMUTABLE(victim->d_inode))
+	if (check_sticky(dir, victim->d_inode)||IS_APPEND(victim->d_inode)||IS_IMMUTABLE_LINK(victim->d_inode))
 		return -EPERM;
 	if (isdir) {
 		if (!S_ISDIR(victim->d_inode->i_mode))
@@ -1594,7 +1593,7 @@
 	 * A link to an append-only or immutable file cannot be created.
 	 */
 	error = -EPERM;
-	if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
+	if (IS_APPEND(inode) || IS_IMMUTABLE_LINK(inode))
 		goto exit_lock;
 	if (!dir->i_op || !dir->i_op->link)
 		goto exit_lock;
diff -urN linux-2.4.16/fs/nfsd/vfs.c linux-2.4.16-immutable/fs/nfsd/vfs.c
--- linux-2.4.16/fs/nfsd/vfs.c	Mon Dec 10 13:11:59 2001
+++ linux-2.4.16-immutable/fs/nfsd/vfs.c	Mon Dec 10 13:46:43 2001
@@ -1480,7 +1480,7 @@
 	if (acc == MAY_NOP)
 		return 0;
 #if 0
-	dprintk("nfsd: permission 0x%x%s%s%s%s%s%s%s mode 0%o%s%s%s\n",
+	dprintk("nfsd: permission 0x%x%s%s%s%s%s%s%s mode 0%o%s%s%s%s\n",
 		acc,
 		(acc & MAY_READ)?	" read"  : "",
 		(acc & MAY_WRITE)?	" write" : "",
@@ -1490,7 +1490,8 @@
 		(acc & MAY_LOCK)?	" lock"  : "",
 		(acc & MAY_OWNER_OVERRIDE)? " owneroverride" : "",
 		inode->i_mode,
-		IS_IMMUTABLE(inode)?	" immut" : "",
+		IS_IMMUTABLE_FILE(inode)? " immut(F)" : "",
+		IS_IMMUTABLE_LINK(inode)? " immut(L)" : "",
 		IS_APPEND(inode)?	" append" : "",
 		IS_RDONLY(inode)?	" ro" : "");
 	dprintk("      owner %d/%d user %d/%d\n",
@@ -1505,7 +1506,7 @@
 		if (acc & (MAY_WRITE | MAY_SATTR | MAY_TRUNC)) {
 			if (EX_RDONLY(exp) || IS_RDONLY(inode))
 				return nfserr_rofs;
-			if (/* (acc & MAY_WRITE) && */ IS_IMMUTABLE(inode))
+			if (/* (acc & MAY_WRITE) && */ IS_IMMUTABLE_FILE(inode))
 				return nfserr_perm;
 		}
 	if ((acc & MAY_TRUNC) && IS_APPEND(inode))
diff -urN linux-2.4.16/fs/open.c linux-2.4.16-immutable/fs/open.c
--- linux-2.4.16/fs/open.c	Mon Dec 10 13:12:23 2001
+++ linux-2.4.16-immutable/fs/open.c	Mon Dec 10 13:46:43 2001
@@ -470,7 +470,7 @@
 	if (IS_RDONLY(inode))
 		goto out_putf;
 	err = -EPERM;
-	if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
+	if (IS_IMMUTABLE_FILE(inode) || IS_APPEND(inode))
 		goto out_putf;
 	if (mode == (mode_t) -1)
 		mode = inode->i_mode;
@@ -501,7 +501,7 @@
 		goto dput_and_out;
 
 	error = -EPERM;
-	if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
+	if (IS_IMMUTABLE_FILE(inode) || IS_APPEND(inode))
 		goto dput_and_out;
 
 	if (mode == (mode_t) -1)
@@ -531,7 +531,7 @@
 	if (IS_RDONLY(inode))
 		goto out;
 	error = -EPERM;
-	if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
+	if (IS_IMMUTABLE_FILE(inode) || IS_APPEND(inode))
 		goto out;
 	if (user == (uid_t) -1)
 		user = inode->i_uid;
diff -urN linux-2.4.16/fs/proc/base.c linux-2.4.16-immutable/fs/proc/base.c
--- linux-2.4.16/fs/proc/base.c	Mon Dec 10 13:12:02 2001
+++ linux-2.4.16-immutable/fs/proc/base.c	Mon Dec 10 13:46:43 2001
@@ -976,7 +976,7 @@
 	inode->i_op = &proc_base_inode_operations;
 	inode->i_fop = &proc_base_operations;
 	inode->i_nlink = 3;
-	inode->i_flags|=S_IMMUTABLE;
+	inode->i_flags|=S_IMMUTABLE_FILE;
 
 	dentry->d_op = &pid_base_dentry_operations;
 	d_add(dentry, inode);
diff -urN linux-2.4.16/fs/udf/inode.c linux-2.4.16-immutable/fs/udf/inode.c
--- linux-2.4.16/fs/udf/inode.c	Mon Dec 10 13:12:23 2001
+++ linux-2.4.16-immutable/fs/udf/inode.c	Mon Dec 10 13:46:43 2001
@@ -863,7 +863,7 @@
 	if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
 			S_ISLNK(inode->i_mode)))
 		return;
-	if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
+	if (IS_APPEND(inode) || IS_IMMUTABLE_FILE(inode))
 		return;
 
 	if (UDF_I_ALLOCTYPE(inode) == ICB_FLAG_AD_IN_ICB)
diff -urN linux-2.4.16/fs/ufs/truncate.c linux-2.4.16-immutable/fs/ufs/truncate.c
--- linux-2.4.16/fs/ufs/truncate.c	Mon Dec 10 13:12:48 2001
+++ linux-2.4.16-immutable/fs/ufs/truncate.c	Mon Dec 10 13:46:43 2001
@@ -434,7 +434,7 @@
 
 	if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode)))
 		return;
-	if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
+	if (IS_APPEND(inode) || IS_IMMUTABLE_FILE(inode))
 		return;
 	while (1) {
 		retry = ufs_trunc_direct(inode);
diff -urN linux-2.4.16/include/linux/ext2_fs.h linux-2.4.16-immutable/include/linux/ext2_fs.h
--- linux-2.4.16/include/linux/ext2_fs.h	Mon Dec 10 13:12:27 2001
+++ linux-2.4.16-immutable/include/linux/ext2_fs.h	Mon Dec 10 13:46:43 2001
@@ -187,7 +187,7 @@
 #define	EXT2_UNRM_FL			0x00000002 /* Undelete */
 #define	EXT2_COMPR_FL			0x00000004 /* Compress file */
 #define EXT2_SYNC_FL			0x00000008 /* Synchronous updates */
-#define EXT2_IMMUTABLE_FL		0x00000010 /* Immutable file */
+#define EXT2_IMMUTABLE_FILE_FL		0x00000010 /* Immutable file */
 #define EXT2_APPEND_FL			0x00000020 /* writes to file may only append */
 #define EXT2_NODUMP_FL			0x00000040 /* do not dump file */
 #define EXT2_NOATIME_FL			0x00000080 /* do not update atime */
@@ -198,10 +198,11 @@
 #define EXT2_ECOMPR_FL			0x00000800 /* Compression error */
 /* End compression flags --- maybe not all used */	
 #define EXT2_BTREE_FL			0x00001000 /* btree format dir */
+#define EXT2_IMMUTABLE_LINK_FL          0x00008000 /* Immutable link */
 #define EXT2_RESERVED_FL		0x80000000 /* reserved for ext2 lib */
 
-#define EXT2_FL_USER_VISIBLE		0x00001FFF /* User visible flags */
-#define EXT2_FL_USER_MODIFIABLE		0x000000FF /* User modifiable flags */
+#define EXT2_FL_USER_VISIBLE		0x00009FFF /* User visible flags */
+#define EXT2_FL_USER_MODIFIABLE		0x000080FF /* User modifiable flags */
 
 /*
  * ioctl commands
diff -urN linux-2.4.16/include/linux/ext3_fs.h linux-2.4.16-immutable/include/linux/ext3_fs.h
--- linux-2.4.16/include/linux/ext3_fs.h	Mon Dec 10 13:12:49 2001
+++ linux-2.4.16-immutable/include/linux/ext3_fs.h	Mon Dec 10 13:46:43 2001
@@ -190,7 +190,7 @@
 #define	EXT3_UNRM_FL			0x00000002 /* Undelete */
 #define	EXT3_COMPR_FL			0x00000004 /* Compress file */
 #define EXT3_SYNC_FL			0x00000008 /* Synchronous updates */
-#define EXT3_IMMUTABLE_FL		0x00000010 /* Immutable file */
+#define EXT3_IMMUTABLE_FILE_FL		0x00000010 /* Immutable file */
 #define EXT3_APPEND_FL			0x00000020 /* writes to file may only append */
 #define EXT3_NODUMP_FL			0x00000040 /* do not dump file */
 #define EXT3_NOATIME_FL			0x00000080 /* do not update atime */
@@ -203,10 +203,11 @@
 #define EXT3_INDEX_FL			0x00001000 /* hash-indexed directory */
 #define EXT3_IMAGIC_FL			0x00002000 /* AFS directory */
 #define EXT3_JOURNAL_DATA_FL		0x00004000 /* file data should be journaled */
+#define EXT3_IMMUTABLE_LINK_FL          0x00008000 /* Immutable link */
 #define EXT3_RESERVED_FL		0x80000000 /* reserved for ext3 lib */
 
-#define EXT3_FL_USER_VISIBLE		0x00005FFF /* User visible flags */
-#define EXT3_FL_USER_MODIFIABLE		0x000000FF /* User modifiable flags */
+#define EXT3_FL_USER_VISIBLE		0x0000DFFF /* User visible flags */
+#define EXT3_FL_USER_MODIFIABLE		0x000080FF /* User modifiable flags */
 
 /*
  * Inode dynamic state flags
diff -urN linux-2.4.16/include/linux/fs.h linux-2.4.16-immutable/include/linux/fs.h
--- linux-2.4.16/include/linux/fs.h	Mon Dec 10 13:12:58 2001
+++ linux-2.4.16-immutable/include/linux/fs.h	Mon Dec 10 13:46:43 2001
@@ -127,13 +127,14 @@
 
 /* Inode flags - they have nothing to superblock flags now */
 
-#define S_SYNC		1	/* Writes are synced at once */
-#define S_NOATIME	2	/* Do not update access times */
-#define S_QUOTA		4	/* Quota initialized for file */
-#define S_APPEND	8	/* Append-only file */
-#define S_IMMUTABLE	16	/* Immutable file */
-#define S_DEAD		32	/* removed, but still open directory */
-#define S_NOQUOTA	64	/* Inode is not counted to quota */
+#define S_SYNC			1	/* Writes are synced at once */
+#define S_NOATIME		2	/* Do not update access times */
+#define S_QUOTA			4	/* Quota initialized for file */
+#define S_APPEND		8	/* Append-only file */
+#define S_IMMUTABLE_FILE	16	/* Immutable file */
+#define S_DEAD			32	/* removed, but still open directory */
+#define S_NOQUOTA		64	/* Inode is not counted to quota */
+#define S_IMMUTABLE_LINK	128	/* Immutable links */
 
 /*
  * Note that nosuid etc flags are inode-specific: setting some file-system
@@ -157,7 +158,8 @@
 #define IS_QUOTAINIT(inode)	((inode)->i_flags & S_QUOTA)
 #define IS_NOQUOTA(inode)	((inode)->i_flags & S_NOQUOTA)
 #define IS_APPEND(inode)	((inode)->i_flags & S_APPEND)
-#define IS_IMMUTABLE(inode)	((inode)->i_flags & S_IMMUTABLE)
+#define IS_IMMUTABLE_FILE(inode)	((inode)->i_flags & S_IMMUTABLE_FILE)
+#define IS_IMMUTABLE_LINK(inode) ((((inode)->i_flags & S_IMMUTABLE_FILE) << 3) ^ ((inode)->i_flags & S_IMMUTABLE_LINK) )
 #define IS_NOATIME(inode)	(__IS_FLG(inode, MS_NOATIME) || ((inode)->i_flags & S_NOATIME))
 #define IS_NODIRATIME(inode)	__IS_FLG(inode, MS_NODIRATIME)
 
@@ -356,11 +358,12 @@
 /*
  * This is the inode attributes flag definitions
  */
-#define ATTR_FLAG_SYNCRONOUS	1 	/* Syncronous write */
-#define ATTR_FLAG_NOATIME	2 	/* Don't update atime */
-#define ATTR_FLAG_APPEND	4 	/* Append-only file */
-#define ATTR_FLAG_IMMUTABLE	8 	/* Immutable file */
-#define ATTR_FLAG_NODIRATIME	16 	/* Don't update atime for directory */
+#define ATTR_FLAG_SYNCRONOUS		1 	/* Syncronous write */
+#define ATTR_FLAG_NOATIME		2 	/* Don't update atime */
+#define ATTR_FLAG_APPEND		4 	/* Append-only file */
+#define ATTR_FLAG_IMMUTABLE_FILE	8 	/* Immutable file */
+#define ATTR_FLAG_NODIRATIME		16 	/* Don't update atime for directory */
+#define ATTR_FLAG_IMMUTABLE_LINK	32 	/* Immutable file */
 
 /*
  * Includes for diskquotas and mount structures.