[PATCH] devpts xattr support

[Darrel Goeddel <dgoeddel@TrustedCS.com>]

Below is a patch (against the SourceForge CVS) that will give xattr 
support to directories in a devpts filesystem.  This will allow the 
context of the root node to be retrieved and modified.  Note that there 
are other filesystems using the simple_dir_inode_operations that may 
need to be changed later as xattr support is spread to more filesystems 
(devpts is the only one causing a problem right now), so a more general 
fix may be wanted/needed later.  Any comments are appreciated.

Darrel Goeddel
Senior Secure Systems Engineer

Trusted Computer Solutions             E: dgoeddel@trustedcs.com
121 West Goose Alley                   V: 217.384.0028 x19
Urbana, IL  61801                      F: 217.384.0288


--- inode.c     12 Oct 2004 18:07:40 -0000      1.1.1.3
+++ inode.c     25 Oct 2004 17:41:43 -0000      1.2
@@ -40,6 +40,16 @@
  #endif
  };

+struct inode_operations devpts_dir_inode_operations = {
+       .lookup         = simple_lookup,
+#ifdef CONFIG_DEVPTS_FS_XATTR
+       .setxattr       = generic_setxattr,
+       .getxattr       = generic_getxattr,
+       .listxattr      = generic_listxattr,
+       .removexattr    = generic_removexattr,
+#endif /* CONFIG_DEVPTS_FS_XATTR */
+};
+
  static struct vfsmount *devpts_mnt;
  static struct dentry *devpts_root;

@@ -113,7 +123,7 @@
         inode->i_blksize = 1024;
         inode->i_uid = inode->i_gid = 0;
         inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO | S_IWUSR;
-       inode->i_op = &simple_dir_inode_operations;
+       inode->i_op = &devpts_dir_inode_operations;
         inode->i_fop = &simple_dir_operations;
         inode->i_nlink = 2;

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