Various patches

Patches for the Linux kernel:

linux-2.4.18-pre4+NFS_ALL+hlfsd.diff: NFS client-side attribute cache fix against 2.4.18-pre4 plus Trond's NFS_ALL patch from 1/19/2002. This patch prevents the kernel from caching hlfsd's symlink between different users; the NFS bug it fixed had a one-jiffy window open where it could cache attributes and reuse them, even with "noac" set.

amd-direct-mount-linux2219.diff: This patch solves two problems in the Linux kernel v2.2.19 when Amd direct mounts are used:

The kernel fails to revalidate the symlink provided by Amd. The remote filesystem is mounted, then timed-out, and then it is never auto-mounted again.
The kernel doesn't allow unmounting the direct mountpoint itself, making it impossible to restart Amd without rebooting.

amd-direct-mount-linux244.diff: This patch has identical functionality to the one above, but is for the Linux kernel v2.4.4.