--- linux-2.6.13-vs2.0.1/fs/open.c	2005-08-29 22:42:13 +0200
+++ linux-2.6.13-vs2.0.1-bme0.06.1/fs/open.c	2005-09-14 03:45:31 +0200
@@ -667,7 +668,8 @@ out:
 	return error;
 }
 
-static int chown_common(struct dentry * dentry, uid_t user, gid_t group)
+static int chown_common(struct dentry *dentry, struct vfsmount *mnt,
+	uid_t user, gid_t group)
 {
 	struct inode * inode;
 	int error;
--- linux-2.6.13-vs2.0.1/fs/open.c	2005-08-29 22:42:13 +0200
+++ linux-2.6.13-vs2.0.1-bme0.06.1/fs/open.c	2005-09-14 03:45:31 +0200
@@ -679,7 +681,7 @@ static int chown_common(struct dentry * 
 		goto out;
 	}
 	error = -EROFS;
-	if (IS_RDONLY(inode))
+	if (IS_RDONLY(inode) || MNT_IS_RDONLY(mnt))
 		goto out;
 	error = -EPERM;
 	if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
--- linux-2.6.13-vs2.0.1/fs/open.c	2005-08-29 22:42:13 +0200
+++ linux-2.6.13-vs2.0.1-bme0.06.1/fs/open.c	2005-09-14 03:45:31 +0200
@@ -709,7 +711,7 @@ asmlinkage long sys_chown(const char __u
 
 	error = user_path_walk(filename, &nd);
 	if (!error) {
-		error = chown_common(nd.dentry, user, group);
+		error = chown_common(nd.dentry, nd.mnt, user, group);
 		path_release(&nd);
 	}
 	return error;
--- linux-2.6.13-vs2.0.1/fs/open.c	2005-08-29 22:42:13 +0200
+++ linux-2.6.13-vs2.0.1-bme0.06.1/fs/open.c	2005-09-14 03:45:31 +0200
@@ -722,7 +724,7 @@ asmlinkage long sys_lchown(const char __
 
 	error = user_path_walk_link(filename, &nd);
 	if (!error) {
-		error = chown_common(nd.dentry, user, group);
+		error = chown_common(nd.dentry, nd.mnt, user, group);
 		path_release(&nd);
 	}
 	return error;
--- linux-2.6.13-vs2.0.1/fs/open.c	2005-08-29 22:42:13 +0200
+++ linux-2.6.13-vs2.0.1-bme0.06.1/fs/open.c	2005-09-14 03:45:31 +0200
@@ -736,7 +738,7 @@ asmlinkage long sys_fchown(unsigned int 
 
 	file = fget(fd);
 	if (file) {
-		error = chown_common(file->f_dentry, user, group);
+		error = chown_common(file->f_dentry, file->f_vfsmnt, user, group);
 		fput(file);
 	}
 	return error;
--- linux-2.6.13-vs2.0.1/fs/open.c	2005-08-29 22:42:13 +0200
+++ linux-2.6.13-vs2.0.1-bme0.06.1/fs/open.c	2005-09-14 03:45:31 +0200
@@ -765,7 +767,7 @@ struct file *filp_open(const char * file
 	if ((namei_flags+1) & O_ACCMODE)
 		namei_flags++;
 	if (namei_flags & O_TRUNC)
-		namei_flags |= 2;
+		namei_flags |= FMODE_WRITE;
 
 	error = open_namei(filename, namei_flags, mode, &nd);
 	if (!error)