Index: linus-2.6.7/fs/namei.c
===================================================================
--- linus-2.6.7.orig/fs/namei.c	2005-03-05 20:24:52.000000000 +0200
+++ linus-2.6.7/fs/namei.c	2005-03-23 13:37:48.563339840 +0200
@@ -758,14 +758,20 @@
 lookup_parent:
 		nd->last = this;
 		nd->last_type = LAST_NORM;
-		if (this.name[0] != '.')
-			goto return_base;
-		if (this.len == 1)
-			nd->last_type = LAST_DOT;
-		else if (this.len == 2 && this.name[1] == '.')
-			nd->last_type = LAST_DOTDOT;
-		else
-			goto return_base;
+		if (this.name[0] == '.') {
+			if (this.len == 1)
+				nd->last_type = LAST_DOT;
+			else if (this.len == 2 && this.name[1] == '.')
+				nd->last_type = LAST_DOTDOT;
+		}
+
+		if ((nd->last_type == LAST_NORM) && inode->i_op &&
+		    inode->i_op->endparentlookup) {
+			err = inode->i_op->endparentlookup(nd);
+			if (err)
+				break;
+		}
+		goto return_base;
 return_reval:
 		/*
 		 * We bypassed the ordinary revalidation routines.
@@ -1535,9 +1541,16 @@
 	if (IS_ERR(tmp))
 		return PTR_ERR(tmp);
 
-	error = path_lookup(tmp, LOOKUP_PARENT, &nd);
+	intent_init(&nd.intent.open, IT_MKNOD);
+	nd.intent.open.create_mode = mode;
+	nd.intent.open.create.dev = dev;
+
+	error = path_lookup_it(tmp, LOOKUP_PARENT, &nd);
 	if (error)
 		goto out;
+	if (nd.intent.open.flags & IT_STATUS_RAW)
+		goto out2;
+
 	dentry = lookup_create(&nd, 0);
 	error = PTR_ERR(dentry);
 
@@ -1564,6 +1577,7 @@
 		dput(dentry);
 	}
 	up(&nd.dentry->d_inode->i_sem);
+out2:
 	path_release(&nd);
 out:
 	putname(tmp);
@@ -1606,9 +1620,13 @@
 		struct dentry *dentry;
 		struct nameidata nd;
 
-		error = path_lookup(tmp, LOOKUP_PARENT, &nd);
+		intent_init(&nd.intent.open, IT_MKDIR);
+		nd.intent.open.create_mode = mode;
+		error = path_lookup_it(tmp, LOOKUP_PARENT, &nd);
 		if (error)
 			goto out;
+		if (nd.intent.open.flags & IT_STATUS_RAW)
+			goto out2;
 		dentry = lookup_create(&nd, 1);
 		error = PTR_ERR(dentry);
 		if (!IS_ERR(dentry)) {
@@ -1618,6 +1636,7 @@
 			dput(dentry);
 		}
 		up(&nd.dentry->d_inode->i_sem);
+out2:
 		path_release(&nd);
 out:
 		putname(tmp);
@@ -1703,9 +1722,12 @@
 	if(IS_ERR(name))
 		return PTR_ERR(name);
 
-	error = path_lookup(name, LOOKUP_PARENT, &nd);
+	intent_init(&nd.intent.open, IT_RMDIR);
+	error = path_lookup_it(name, LOOKUP_PARENT, &nd);
 	if (error)
 		goto exit;
+	if (nd.intent.open.flags & IT_STATUS_RAW)
+		goto exit1;
 
 	switch(nd.last_type) {
 		case LAST_DOTDOT:
@@ -1781,9 +1803,13 @@
 	if(IS_ERR(name))
 		return PTR_ERR(name);
 
-	error = path_lookup(name, LOOKUP_PARENT, &nd);
+	intent_init(&nd.intent.open, IT_UNLINK);
+	error = path_lookup_it(name, LOOKUP_PARENT, &nd);
 	if (error)
 		goto exit;
+	if (nd.intent.open.flags & IT_STATUS_RAW)
+		goto exit1;
+
 	error = -EISDIR;
 	if (nd.last_type != LAST_NORM)
 		goto exit1;
@@ -1855,9 +1881,13 @@
 		struct dentry *dentry;
 		struct nameidata nd;
 
-		error = path_lookup(to, LOOKUP_PARENT, &nd);
+		intent_init(&nd.intent.open, IT_SYMLINK);
+		nd.intent.open.create.link = from;
+		error = path_lookup_it(to, LOOKUP_PARENT, &nd);
 		if (error)
 			goto out;
+		if (nd.intent.open.flags & IT_STATUS_RAW)
+			goto out2;
 		dentry = lookup_create(&nd, 0);
 		error = PTR_ERR(dentry);
 		if (!IS_ERR(dentry)) {
@@ -1865,6 +1895,7 @@
 			dput(dentry);
 		}
 		up(&nd.dentry->d_inode->i_sem);
+out2:
 		path_release(&nd);
 out:
 		putname(to);
@@ -1936,9 +1967,13 @@
 	error = __user_walk(oldname, 0, &old_nd);
 	if (error)
 		goto exit;
-	error = path_lookup(to, LOOKUP_PARENT, &nd);
+	intent_init(&nd.intent.open, IT_LINK);
+	nd.intent.open.create.source_nd = &old_nd;
+	error = path_lookup_it(to, LOOKUP_PARENT, &nd);
 	if (error)
 		goto out;
+	if (nd.intent.open.flags & IT_STATUS_RAW)
+		goto out_release;
 	error = -EXDEV;
 	if (old_nd.mnt != nd.mnt)
 		goto out_release;
@@ -2119,9 +2154,18 @@
 	if (error)
 		goto exit;
 
-	error = path_lookup(newname, LOOKUP_PARENT, &newnd);
+	error = -EBUSY;
+	if (oldnd.last_type != LAST_NORM)
+		goto exit1;
+
+	intent_init(&newnd.intent.open, IT_RENAME);
+	newnd.intent.open.create.source_nd = &oldnd;
+	error = path_lookup_it(newname, LOOKUP_PARENT, &newnd);
 	if (error)
 		goto exit1;
+	if (newnd.intent.open.flags & IT_STATUS_RAW) {
+		goto exit2;
+	}
 
 	error = -EXDEV;
 	if (oldnd.mnt != newnd.mnt)
@@ -2129,8 +2173,6 @@
 
 	old_dir = oldnd.dentry;
 	error = -EBUSY;
-	if (oldnd.last_type != LAST_NORM)
-		goto exit2;
 
 	new_dir = newnd.dentry;
 	if (newnd.last_type != LAST_NORM)
@@ -2238,6 +2280,7 @@
 	intent_init(&nd->intent.open, it.op);
 	nd->intent.open.flags = it.flags;
 	nd->intent.open.create_mode = it.create_mode;
+	nd->intent.open.create = it.create;
 	res = link_path_walk(link, nd);
 out:
 	if (current->link_count || res || nd->last_type!=LAST_NORM)
Index: linus-2.6.7/include/linux/namei.h
===================================================================
--- linus-2.6.7.orig/include/linux/namei.h	2005-03-05 20:24:52.000000000 +0200
+++ linus-2.6.7/include/linux/namei.h	2005-03-23 13:34:56.632477304 +0200
@@ -15,9 +15,19 @@
 #define IT_UNLINK	(1<<5)
 #define IT_TRUNC	(1<<6)
 #define IT_GETXATTR	(1<<7)
+#define IT_RMDIR	(1<<8)
+#define IT_LINK		(1<<9)
+#define IT_RENAME	(1<<10)
+#define IT_MKDIR	(1<<11)
+#define IT_MKNOD	(1<<12)
+#define IT_SYMLINK	(1<<13)
+#define IT_CHDIR	(1<<14)
 
 #define INTENT_MAGIC 0x19620323
-
+#define IT_STATUS_RAW (1<<10)  /* Setting this in it_flags on exit from lookup
+                                  means everything was done already and return
+                                  value from lookup is in fact status of
+                                  already performed operation */
 struct open_intent {
 	int	magic;
 	int	op;
@@ -25,6 +35,11 @@
 	int	flags;
 	int	create_mode;
 	union {
+		unsigned	dev;	/* For mknod */
+		char	*link;	/* For symlink */
+		struct nameidata *source_nd; /* For link/rename */
+	} create;
+	union {
 		void *fs_data; /* FS-specific intent data */
 	} d;
 };
Index: linus-2.6.7/include/linux/fs.h
===================================================================
--- linus-2.6.7.orig/include/linux/fs.h	2005-03-05 20:24:52.000000000 +0200
+++ linus-2.6.7/include/linux/fs.h	2005-03-23 13:35:08.796628072 +0200
@@ -909,6 +909,7 @@
 	ssize_t (*getxattr) (struct dentry *, const char *, void *, size_t);
 	ssize_t (*listxattr) (struct dentry *, char *, size_t);
 	int (*removexattr) (struct dentry *, const char *);
+	int (*endparentlookup) (struct nameidata *);
 };
 
 struct seq_file;