[OpenAFS] kernel 2.4.19 problem

[Srikanth Vishwanathan]

> kernel 2.4.19 openafs works well, only in /afs I get a "stale nfs file
> handle". I tried the same with openafs 1.2.7 and kernel 2.4.19 - no
change.

I belive this has been fixed by the following code change in
afs_linux_dentry_revalidate:

    /* If it is the AFS root, then there's no chance it needs
       revalidating */
    if (vcp == afs_globalVp) {
        bad_dentry = 0;
        goto done;
    }