Index: linux-2.6.4-51.0/fs/exec.c
===================================================================
--- linux-2.6.4-51.0.orig/fs/exec.c	2004-04-05 12:41:59.000000000 -0400
+++ linux-2.6.4-51.0/fs/exec.c	2004-04-05 17:36:42.000000000 -0400
@@ -122,8 +122,11 @@
 	struct file * file;
 	struct nameidata nd;
 	int error;
+	intent_init(&nd.intent, IT_OPEN);
 
-	nd.intent.open.flags = FMODE_READ;
+	error = user_path_walk_it(library, &nd);
+
+	nd.intent.it_flags = O_RDONLY;
 	error = __user_walk(library, LOOKUP_FOLLOW|LOOKUP_OPEN, &nd);
 	if (error)
 		goto out;
@@ -136,7 +139,7 @@
 	if (error)
 		goto exit;
 
-	file = dentry_open(nd.dentry, nd.mnt, O_RDONLY);
+	file = dentry_open_it(nd.dentry, nd.mnt, O_RDONLY, &nd.intent);
 	error = PTR_ERR(file);
 	if (IS_ERR(file))
 		goto out;
@@ -485,8 +488,9 @@
 	int err;
 	struct file *file;
 
-	nd.intent.open.flags = FMODE_READ;
-	err = path_lookup(name, LOOKUP_FOLLOW|LOOKUP_OPEN, &nd);
+	intent_init(&nd.intent, IT_OPEN);
+	nd.intent.it_flags = O_RDONLY;
+	err = path_lookup(name, LOOKUP_FOLLOW, &nd);
 	file = ERR_PTR(err);
 
 	if (!err) {
@@ -499,7 +503,7 @@
 				err = -EACCES;
 			file = ERR_PTR(err);
 			if (!err) {
-				file = dentry_open(nd.dentry, nd.mnt, O_RDONLY);
+				file = dentry_open_it(nd.dentry, nd.mnt, O_RDONLY, &nd.intent);
 				if (!IS_ERR(file)) {
 					err = deny_write_access(file);
 					if (err) {
Index: linux-2.6.4-51.0/fs/namei.c
===================================================================
--- linux-2.6.4-51.0.orig/fs/namei.c	2004-04-05 12:41:59.000000000 -0400
+++ linux-2.6.4-51.0/fs/namei.c	2004-04-05 17:36:42.000000000 -0400
@@ -269,8 +269,19 @@
 	return 0;
 }
 
+void intent_release(struct lookup_intent *it)
+{
+	if (!it)
+		return;
+	if (it->it_magic != INTENT_MAGIC)
+		return;
+	if (it->it_op_release)
+		it->it_op_release(it);
+}
+
 void path_release(struct nameidata *nd)
 {
+	intent_release(&nd->intent);
 	dput(nd->dentry);
 	mntput(nd->mnt);
 }
@@ -347,7 +358,10 @@
 {
 	struct dentry * result;
 	struct inode *dir = parent->d_inode;
+	int counter = 0;
 
+again:
+	counter++;
 	down(&dir->i_sem);
 	/*
 	 * First re-do the cached lookup just in case it was created
@@ -386,7 +400,10 @@
 	if (result->d_op && result->d_op->d_revalidate) {
 		if (!result->d_op->d_revalidate(result, nd) && !d_invalidate(result)) {
 			dput(result);
-			result = ERR_PTR(-ENOENT);
+			if (counter > 10)
+				result = ERR_PTR(-ESTALE);
+			if (!IS_ERR(result))
+				goto again;
 		}
 	}
 	return result;
@@ -563,6 +580,31 @@
 	return PTR_ERR(dentry);
 }
 
+static int revalidate_special(struct nameidata *nd)
+{
+	struct dentry *dentry = nd->dentry;
+	int err, counter = 0;
+
+	if (!dentry->d_op || !dentry->d_op->d_revalidate)
+		return 0;
+ revalidate_again:
+	if (!dentry->d_op->d_revalidate(dentry, nd)) {
+		struct dentry *new;
+		if ((err = permission(dentry->d_parent->d_inode, MAY_EXEC,nd)))
+			return err;
+		new = real_lookup(dentry->d_parent, &dentry->d_name, nd);
+		d_invalidate(dentry);
+		dput(dentry);
+		nd->dentry = dentry = new;
+		counter++;
+		if (counter < 10)
+			goto revalidate_again;
+		printk("excessive revalidate_it loops\n");
+		return -ESTALE;
+	}
+	return 0;
+}
+
 /*
  * Name resolution.
  *
@@ -663,7 +705,9 @@
 
 		if (inode->i_op->follow_link) {
 			mntget(next.mnt);
+			nd->flags |= LOOKUP_LINK_NOTLAST;
 			err = do_follow_link(next.dentry, nd);
+			nd->flags &= ~LOOKUP_LINK_NOTLAST;
 			dput(next.dentry);
 			mntput(next.mnt);
 			if (err)
@@ -702,14 +746,29 @@
 				inode = nd->dentry->d_inode;
 				/* fallthrough */
 			case 1:
+ 				nd->flags |= LOOKUP_LAST;
+ 				err = revalidate_special(nd);
+ 				nd->flags &= ~LOOKUP_LAST;
+				if (err)
+ 					break;
 				goto return_reval;
 		}
+		
+		if (err) {
+			if (!nd->dentry->d_inode)
+				err = -ENOENT;
+			
+			goto return_err;			
+		}
+		
 		if (nd->dentry->d_op && nd->dentry->d_op->d_hash) {
 			err = nd->dentry->d_op->d_hash(nd->dentry, &this);
 			if (err < 0)
 				break;
 		}
+		nd->flags |= LOOKUP_LAST;
 		err = do_lookup(nd, &this, &next);
+		nd->flags &= ~LOOKUP_LAST;
 		if (err)
 			break;
 		follow_mount(&next.mnt, &next.dentry);
@@ -935,7 +994,7 @@
 }
 
 /* SMP-safe */
-struct dentry * lookup_one_len(const char * name, struct dentry * base, int len)
+struct dentry * lookup_one_len_it(const char * name, struct dentry * base, int len, struct nameidata *nd)
 {
 	unsigned long hash;
 	struct qstr this;
@@ -955,11 +1014,16 @@
 	}
 	this.hash = end_name_hash(hash);
 
-	return lookup_hash(&this, base);
+	return __lookup_hash(&this, base, nd);
 access:
 	return ERR_PTR(-EACCES);
 }
 
+struct dentry * lookup_one_len(const char * name, struct dentry * base, int len)
+{
+	return lookup_one_len_it(name, base, len, NULL);
+}
+
 /*
  *	namei()
  *
@@ -971,7 +1035,7 @@
  * that namei follows links, while lnamei does not.
  * SMP-safe
  */
-int fastcall __user_walk(const char __user *name, unsigned flags, struct nameidata *nd)
+int fastcall __user_walk_it(const char __user *name, unsigned flags, struct nameidata *nd)
 {
 	char *tmp = getname(name);
 	int err = PTR_ERR(tmp);
@@ -983,6 +1047,12 @@
 	return err;
 }
 
+int __user_walk(const char __user *name, unsigned flags, struct nameidata *nd)
+{
+	intent_init(&nd->intent, IT_LOOKUP);
+	return __user_walk_it(name, flags, nd);
+}
+
 /*
  * It's inline, so penalty for filesystems that don't use sticky bit is
  * minimal.
@@ -1255,8 +1325,8 @@
 		acc_mode |= MAY_APPEND;
 
 	/* Fill in the open() intent data */
-	nd->intent.open.flags = flag;
-	nd->intent.open.create_mode = mode;
+	nd->intent.it_flags = flag;
+	nd->intent.it_create_mode = mode;
 
 	/*
 	 * The simplest case - just a plain lookup.
@@ -1271,6 +1341,7 @@
 	/*
 	 * Create - we need to know the parent.
 	 */
+	nd->intent.it_op |= IT_CREAT;
 	error = path_lookup(pathname, LOOKUP_PARENT|LOOKUP_OPEN|LOOKUP_CREATE, nd);
 	if (error)
 		return error;
@@ -1287,7 +1358,9 @@
 	dir = nd->dentry;
 	nd->flags &= ~LOOKUP_PARENT;
 	down(&dir->d_inode->i_sem);
+	nd->flags |= LOOKUP_LAST;
 	dentry = __lookup_hash(&nd->last, nd->dentry, nd);
+	nd->flags &= ~LOOKUP_LAST;
 
 do_last:
 	error = PTR_ERR(dentry);
@@ -1392,7 +1465,9 @@
 	}
 	dir = nd->dentry;
 	down(&dir->d_inode->i_sem);
+	nd->flags |= LOOKUP_LAST;
 	dentry = __lookup_hash(&nd->last, nd->dentry, nd);
+	nd->flags &= ~LOOKUP_LAST;
 	putname(nd->last.name);
 	goto do_last;
 }
@@ -2154,7 +2229,9 @@
 __vfs_follow_link(struct nameidata *nd, const char *link)
 {
 	int res = 0;
+	struct lookup_intent it = nd->intent;
 	char *name;
+
 	if (IS_ERR(link))
 		goto fail;
 
@@ -2164,6 +2241,10 @@
 			/* weird __emul_prefix() stuff did it */
 			goto out;
 	}
+
+	intent_init(&nd->intent, it.it_op);
+	nd->intent.it_flags = it.it_flags;
+	nd->intent.it_create_mode = it.it_create_mode;
 	res = link_path_walk(link, nd);
 out:
 	if (current->link_count || res || nd->last_type!=LAST_NORM)
Index: linux-2.6.4-51.0/fs/namespace.c
===================================================================
--- linux-2.6.4-51.0.orig/fs/namespace.c	2004-04-05 12:41:59.000000000 -0400
+++ linux-2.6.4-51.0/fs/namespace.c	2004-04-07 13:28:23.000000000 -0400
@@ -107,6 +107,7 @@
 
 static void detach_mnt(struct vfsmount *mnt, struct nameidata *old_nd)
 {
+	memset(old_nd, 0, sizeof(*old_nd));
 	old_nd->dentry = mnt->mnt_mountpoint;
 	old_nd->mnt = mnt->mnt_parent;
 	mnt->mnt_parent = mnt;
@@ -748,6 +749,7 @@
 	int retval = 0;
 	int mnt_flags = 0;
 
+	intent_init(&nd.intent, IT_LOOKUP);
 	/* Discard magic */
 	if ((flags & MS_MGC_MSK) == MS_MGC_VAL)
 		flags &= ~MS_MGC_MSK;
Index: linux-2.6.4-51.0/fs/open.c
===================================================================
--- linux-2.6.4-51.0.orig/fs/open.c	2004-04-05 12:41:59.000000000 -0400
+++ linux-2.6.4-51.0/fs/open.c	2004-04-05 17:36:42.000000000 -0400
@@ -211,7 +211,7 @@
 	struct nameidata nd;
 	struct inode * inode;
 	int error;
-
+	intent_init(&nd.intent, IT_GETATTR);
 	error = -EINVAL;
 	if (length < 0)	/* sorry, but loff_t says... */
 		goto out;
@@ -470,6 +470,7 @@
 	int old_fsuid, old_fsgid;
 	kernel_cap_t old_cap;
 	int res;
+	intent_init(&nd.intent, IT_GETATTR);
 
 	if (mode & ~S_IRWXO)	/* where's F_OK, X_OK, W_OK, R_OK? */
 		return -EINVAL;
@@ -501,6 +502,7 @@
 		if(!res && (mode & S_IWOTH) && IS_RDONLY(nd.dentry->d_inode)
 		   && !special_file(nd.dentry->d_inode->i_mode))
 			res = -EROFS;
+
 		path_release(&nd);
 	}
 
@@ -515,6 +517,7 @@
 {
 	struct nameidata nd;
 	int error;
+	intent_init(&nd.intent, IT_GETATTR);
 
 	error = __user_walk(filename, LOOKUP_FOLLOW|LOOKUP_DIRECTORY, &nd);
 	if (error)
@@ -566,6 +569,7 @@
 {
 	struct nameidata nd;
 	int error;
+	intent_init(&nd.intent, IT_GETATTR);
 
 	error = __user_walk(filename, LOOKUP_FOLLOW | LOOKUP_DIRECTORY | LOOKUP_NOALT, &nd);
 	if (error)
@@ -638,7 +642,7 @@
 	error = -EROFS;
 	if (IS_RDONLY(inode))
 		goto dput_and_out;
-
+	
 	error = -EPERM;
 	if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
 		goto dput_and_out;
@@ -746,27 +750,8 @@
  * for the internal routines (ie open_namei()/follow_link() etc). 00 is
  * used by symlinks.
  */
-struct file *filp_open(const char * filename, int flags, int mode)
-{
-	int namei_flags, error;
-	struct nameidata nd;
-
-	namei_flags = flags;
-	if ((namei_flags+1) & O_ACCMODE)
-		namei_flags++;
-	if (namei_flags & O_TRUNC)
-		namei_flags |= 2;
-
-	error = open_namei(filename, namei_flags, mode, &nd);
-	if (!error)
-		return dentry_open(nd.dentry, nd.mnt, flags);
-
-	return ERR_PTR(error);
-}
-
-EXPORT_SYMBOL(filp_open);
-
-struct file *dentry_open(struct dentry *dentry, struct vfsmount *mnt, int flags)
+struct file *dentry_open_it(struct dentry *dentry, struct vfsmount *mnt, int flags,
+			    struct lookup_intent *it)
 {
 	struct file * f;
 	struct inode *inode;
@@ -778,6 +763,7 @@
 		goto cleanup_dentry;
 	f->f_flags = flags;
 	f->f_mode = (flags+1) & O_ACCMODE;
+	f->f_it = it;
 	inode = dentry->d_inode;
 	if (f->f_mode & FMODE_WRITE) {
 		error = get_write_access(inode);
@@ -797,6 +783,7 @@
 		error = f->f_op->open(inode,f);
 		if (error)
 			goto cleanup_all;
+		intent_release(it);
 	}
 	f->f_flags &= ~(O_CREAT | O_EXCL | O_NOCTTY | O_TRUNC);
 
@@ -821,6 +808,7 @@
 cleanup_file:
 	put_filp(f);
 cleanup_dentry:
+	intent_release(it);
 	dput(dentry);
 	mntput(mnt);
 	return ERR_PTR(error);
@@ -828,6 +816,36 @@
 
 EXPORT_SYMBOL(dentry_open);
 
+struct file *filp_open(const char * filename, int flags, int mode)
+{
+	int namei_flags, error;
+	struct file * temp_filp;
+	struct nameidata nd;
+	intent_init(&nd.intent, IT_OPEN);
+
+	namei_flags = flags;
+	if ((namei_flags+1) & O_ACCMODE)
+		namei_flags++;
+	if (namei_flags & O_TRUNC)
+		namei_flags |= 2;
+
+	error = open_namei(filename, namei_flags, mode, &nd);
+	if (!error) {
+		temp_filp = dentry_open_it(nd.dentry, nd.mnt, flags, &nd.intent);
+		return temp_filp;
+	}	
+	return ERR_PTR(error);
+}
+
+
+struct file *dentry_open(struct dentry *dentry, struct vfsmount *mnt, int flags)
+{
+	struct lookup_intent it;
+	intent_init(&it, IT_LOOKUP);
+
+	return dentry_open_it(dentry, mnt, flags, &it);
+}
+
 /*
  * Find an empty file descriptor entry, and mark it busy.
  */
Index: linux-2.6.4-51.0/fs/stat.c
===================================================================
--- linux-2.6.4-51.0.orig/fs/stat.c	2004-04-05 12:41:59.000000000 -0400
+++ linux-2.6.4-51.0/fs/stat.c	2004-04-05 17:36:42.000000000 -0400
@@ -36,7 +36,7 @@
 
 EXPORT_SYMBOL(generic_fillattr);
 
-int vfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
+int vfs_getattr_it(struct vfsmount *mnt, struct dentry *dentry, struct lookup_intent *it, struct kstat *stat)
 {
 	struct inode *inode = dentry->d_inode;
 	int retval;
@@ -45,6 +45,8 @@
 	if (retval)
 		return retval;
 
+	if (inode->i_op->getattr_it)
+		return inode->i_op->getattr_it(mnt, dentry, it, stat);
 	if (inode->i_op->getattr)
 		return inode->i_op->getattr(mnt, dentry, stat);
 
@@ -61,14 +63,20 @@
 
 EXPORT_SYMBOL(vfs_getattr);
 
+int vfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
+{
+	return vfs_getattr_it(mnt, dentry, NULL, stat);
+}
+
 int vfs_stat(char __user *name, struct kstat *stat)
 {
 	struct nameidata nd;
 	int error;
+	intent_init(&nd.intent, IT_GETATTR);
 
-	error = user_path_walk(name, &nd);
+	error = user_path_walk_it(name, &nd);
 	if (!error) {
-		error = vfs_getattr(nd.mnt, nd.dentry, stat);
+		error = vfs_getattr_it(nd.mnt, nd.dentry, &nd.intent, stat);
 		path_release(&nd);
 	}
 	return error;
@@ -80,10 +88,11 @@
 {
 	struct nameidata nd;
 	int error;
+	intent_init(&nd.intent, IT_GETATTR);
 
-	error = user_path_walk_link(name, &nd);
+	error = user_path_walk_link_it(name, &nd);
 	if (!error) {
-		error = vfs_getattr(nd.mnt, nd.dentry, stat);
+		error = vfs_getattr_it(nd.mnt, nd.dentry, &nd.intent, stat);
 		path_release(&nd);
 	}
 	return error;
@@ -95,9 +104,12 @@
 {
 	struct file *f = fget(fd);
 	int error = -EBADF;
+	struct nameidata nd;
+	intent_init(&nd.intent, IT_GETATTR);
 
 	if (f) {
-		error = vfs_getattr(f->f_vfsmnt, f->f_dentry, stat);
+		error = vfs_getattr_it(f->f_vfsmnt, f->f_dentry, &nd.intent, stat);
+		intent_release(&nd.intent);
 		fput(f);
 	}
 	return error;
Index: linux-2.6.4-51.0/fs/nfs/dir.c
===================================================================
--- linux-2.6.4-51.0.orig/fs/nfs/dir.c	2004-04-05 12:41:59.000000000 -0400
+++ linux-2.6.4-51.0/fs/nfs/dir.c	2004-04-07 13:27:47.000000000 -0400
@@ -709,7 +709,7 @@
 		return 0;
 	if (!nd || (nd->flags & LOOKUP_CONTINUE) || !(nd->flags & LOOKUP_CREATE))
 		return 0;
-	return (nd->intent.open.flags & O_EXCL) != 0;
+	return (nd->intent.it_flags & O_EXCL) != 0;
 }
 
 static struct dentry *nfs_lookup(struct inode *dir, struct dentry * dentry, struct nameidata *nd)
@@ -1026,7 +1026,7 @@
 	attr.ia_valid = ATTR_MODE;
 
 	if (nd && (nd->flags & LOOKUP_CREATE))
-		open_flags = nd->intent.open.flags;
+		open_flags = nd->intent.it_flags;
 
 	/*
 	 * The 0 argument passed into the create function should one day
Index: linux-2.6.4-51.0/fs/inode.c
===================================================================
--- linux-2.6.4-51.0.orig/fs/inode.c	2004-04-05 12:41:59.000000000 -0400
+++ linux-2.6.4-51.0/fs/inode.c	2004-04-05 17:36:43.000000000 -0400
@@ -221,6 +221,7 @@
 	inodes_stat.nr_unused--;
 }
 
+EXPORT_SYMBOL(__iget);
 /**
  * clear_inode - clear an inode
  * @inode: inode to clear
Index: linux-2.6.4-51.0/fs/super.c
===================================================================
--- linux-2.6.4-51.0.orig/fs/super.c	2004-04-05 12:41:59.000000000 -0400
+++ linux-2.6.4-51.0/fs/super.c	2004-04-05 17:36:43.000000000 -0400
@@ -787,6 +787,8 @@
 	return (struct vfsmount *)sb;
 }
 
+EXPORT_SYMBOL(do_kern_mount);
+
 struct vfsmount *kern_mount(struct file_system_type *type)
 {
 	return do_kern_mount(type->name, 0, type->name, NULL);
Index: linux-2.6.4-51.0/include/linux/dcache.h
===================================================================
--- linux-2.6.4-51.0.orig/include/linux/dcache.h	2004-04-05 12:42:07.000000000 -0400
+++ linux-2.6.4-51.0/include/linux/dcache.h	2004-04-05 17:36:43.000000000 -0400
@@ -4,6 +4,7 @@
 #ifdef __KERNEL__
 
 #include <asm/atomic.h>
+#include <linux/string.h>
 #include <linux/list.h>
 #include <linux/spinlock.h>
 #include <linux/cache.h>
@@ -35,6 +36,8 @@
 	char name_str[0];
 };
 
+#include <linux/namei.h>
+
 struct dentry_stat_t {
 	int nr_dentry;
 	int nr_unused;
Index: linux-2.6.4-51.0/include/linux/fs.h
===================================================================
--- linux-2.6.4-51.0.orig/include/linux/fs.h	2004-04-05 12:42:07.000000000 -0400
+++ linux-2.6.4-51.0/include/linux/fs.h	2004-04-05 17:36:43.000000000 -0400
@@ -249,6 +249,8 @@
 #define ATTR_ATTR_FLAG	1024
 #define ATTR_KILL_SUID	2048
 #define ATTR_KILL_SGID	4096
+#define ATTR_RAW       	8192    /* file system, not vfs will massage attrs */
+#define ATTR_FROM_OPEN 	16384    /* called from open path, ie O_TRUNC */
 
 /*
  * This is the Inode Attributes structure, used for notify_change().  It
@@ -422,6 +424,7 @@
 	struct block_device	*i_bdev;
 	struct cdev		*i_cdev;
 	int			i_cindex;
+	void			*i_filterdata;
 
 	unsigned long		i_dnotify_mask; /* Directory notify events */
 	struct dnotify_struct	*i_dnotify; /* for directory notifications */
@@ -554,6 +557,7 @@
 	spinlock_t		f_ep_lock;
 #endif /* #ifdef CONFIG_EPOLL */
 	struct address_space	*f_mapping;
+ 	struct lookup_intent    *f_it;
 };
 extern spinlock_t files_lock;
 #define file_list_lock() spin_lock(&files_lock);
@@ -874,7 +878,9 @@
 	void (*truncate) (struct inode *);
 	int (*permission) (struct inode *, int, struct nameidata *);
 	int (*setattr) (struct dentry *, struct iattr *);
+	int (*setattr_raw) (struct inode *, struct iattr *);
 	int (*getattr) (struct vfsmount *mnt, struct dentry *, struct kstat *);
+	int (*getattr_it) (struct vfsmount *, struct dentry *, struct lookup_intent *, struct kstat *);
 	int (*setxattr) (struct dentry *, const char *,const void *,size_t,int);
 	ssize_t (*getxattr) (struct dentry *, const char *, void *, size_t);
 	ssize_t (*listxattr) (struct dentry *, char *, size_t);
@@ -1101,6 +1107,7 @@
 extern int unregister_filesystem(struct file_system_type *);
 extern struct vfsmount *kern_mount(struct file_system_type *);
 extern int may_umount(struct vfsmount *);
+struct vfsmount *do_kern_mount(const char *type, int flags, const char *name, void *data);
 extern long do_mount(char *, char *, char *, unsigned long, void *);
 
 extern int vfs_statfs(struct super_block *, struct kstatfs *);
@@ -1165,6 +1172,7 @@
 extern int do_truncate(struct dentry *, loff_t start);
 extern struct file *filp_open(const char *, int, int);
 extern struct file * dentry_open(struct dentry *, struct vfsmount *, int);
+extern struct file * dentry_open_it(struct dentry *, struct vfsmount *, int, struct lookup_intent *);
 extern int filp_close(struct file *, fl_owner_t id);
 extern char * getname(const char __user *);
 
Index: linux-2.6.4-51.0/include/linux/namei.h
===================================================================
--- linux-2.6.4-51.0.orig/include/linux/namei.h	2004-04-05 12:42:07.000000000 -0400
+++ linux-2.6.4-51.0/include/linux/namei.h	2004-04-05 17:36:43.000000000 -0400
@@ -2,25 +2,55 @@
 #define _LINUX_NAMEI_H
 
 #include <linux/linkage.h>
+#include <linux/string.h>
 
 struct vfsmount;
+struct nameidata;
 
-struct open_intent {
-	int	flags;
-	int	create_mode;
+/* intent opcodes */
+#define IT_OPEN     (1)
+#define IT_CREAT    (1<<1)
+#define IT_READDIR  (1<<2)
+#define IT_GETATTR  (1<<3)
+#define IT_LOOKUP   (1<<4)
+#define IT_UNLINK   (1<<5)
+#define IT_TRUNC    (1<<6)
+#define IT_GETXATTR (1<<7)
+
+struct lustre_intent_data {
+	int       it_disposition;
+	int       it_status;
+	__u64     it_lock_handle;
+	void     *it_data;
+	int       it_lock_mode;
 };
 
+#define INTENT_MAGIC 0x19620323
+struct lookup_intent {
+	int     it_magic;
+	void    (*it_op_release)(struct lookup_intent *);
+	int     it_op;
+	int	it_flags;
+	int	it_create_mode;
+	union {
+		struct lustre_intent_data lustre;
+	} d;
+};
+
+static inline void intent_init(struct lookup_intent *it, int op)
+{
+	memset(it, 0, sizeof(*it));
+	it->it_magic = INTENT_MAGIC;
+	it->it_op = op;
+}
+
 struct nameidata {
 	struct dentry	*dentry;
 	struct vfsmount *mnt;
 	struct qstr	last;
 	unsigned int	flags;
 	int		last_type;
-
-	/* Intent data */
-	union {
-		struct open_intent open;
-	} intent;
+	struct lookup_intent intent;
 };
 
 /*
@@ -41,6 +71,9 @@
 #define LOOKUP_CONTINUE		 4
 #define LOOKUP_PARENT		16
 #define LOOKUP_NOALT		32
+#define LOOKUP_LAST		 (1<<6)
+#define LOOKUP_LINK_NOTLAST	 (1<<7)
+
 /*
  * Intent data
  */
@@ -49,6 +82,12 @@
 #define LOOKUP_ACCESS		(0x0400)
 
 extern int FASTCALL(__user_walk(const char __user *, unsigned, struct nameidata *));
+extern int FASTCALL(__user_walk_it(const char __user *name, unsigned flags, struct nameidata *nd));
+#define user_path_walk_it(name,nd) \
+	__user_walk_it(name, LOOKUP_FOLLOW, nd)
+#define user_path_walk_link_it(name,nd) \
+	__user_walk_it(name, 0, nd)
+extern void intent_release(struct lookup_intent *);
 #define user_path_walk(name,nd) \
 	__user_walk(name, LOOKUP_FOLLOW, nd)
 #define user_path_walk_link(name,nd) \
@@ -60,7 +99,6 @@
 
 extern struct dentry * lookup_one_len(const char *, struct dentry *, int);
 extern struct dentry * lookup_hash(struct qstr *, struct dentry *);
-
 extern int follow_down(struct vfsmount **, struct dentry **);
 extern int follow_up(struct vfsmount **, struct dentry **);
 
Index: linux-2.6.4-51.0/kernel/exit.c
===================================================================
--- linux-2.6.4-51.0.orig/kernel/exit.c	2004-04-05 12:42:08.000000000 -0400
+++ linux-2.6.4-51.0/kernel/exit.c	2004-04-05 17:36:43.000000000 -0400
@@ -259,6 +259,8 @@
 	write_unlock_irq(&tasklist_lock);
 }
 
+EXPORT_SYMBOL(reparent_to_init);
+
 void __set_special_pids(pid_t session, pid_t pgrp)
 {
 	struct task_struct *curr = current;
@@ -428,6 +430,8 @@
 	__exit_files(tsk);
 }
 
+EXPORT_SYMBOL(exit_files);
+
 static inline void __put_fs_struct(struct fs_struct *fs)
 {
 	/* No need to hold fs->lock if we are killing it */