This set of patches adds an array for storing the results of an NFS readdir.
Until now, XDR structures had been stored in a cache page without doing any
decoding. We will now decode the result to store in the page. This allows us
to cache more information on a single page and to vmap multiple pages together
for large readdirs.
[PATCH 1/6] NFS: add readdir cache array
[PATCH 2/6] NFS: use readdir cache array
[PATCH 3/6] NFS: remove old readdir code
[PATCH 4/6] NFS: re-add readdir plus
[PATCH 5/6] NFS: remove readdir plus limit
[PATCH 6/6] NFS: readdir with vmapped pages
-Bryan