nfsd41: DRC save, restore, and clear functions

[~andy/linux] / include / linux / nfsd / state.h

diff --git a/include/linux/nfsd/state.h b/include/linux/nfsd/state.h
index 90829db768616f47b590ca523f37a7f917c05578..f1edb1d9852317591690124eb0aa19702aa929df 100644 (file)
--- a/include/linux/nfsd/state.h
+++ b/include/linux/nfsd/state.h
@@ -99,9 +99,22 @@ struct nfs4_callback {
        struct rpc_clnt *       cb_client;
 };
 
+/* Maximum number of pages per slot cache entry */
+#define NFSD_PAGES_PER_SLOT    1
+
+struct nfsd4_cache_entry {
+       __be32          ce_status;
+       struct kvec     ce_datav; /* encoded NFSv4.1 data in rq_res.head[0] */
+       struct page     *ce_respages[NFSD_PAGES_PER_SLOT + 1];
+       short           ce_resused;
+       int             ce_opcnt;
+       int             ce_rpchdrlen;
+};
+
 struct nfsd4_slot {
        bool                            sl_inuse;
        u32                             sl_seqid;
+       struct nfsd4_cache_entry        sl_cache_entry;
 };
 
 struct nfsd4_session {