diff --git a/include/linux/nfsd/nfsd.h b/include/linux/nfsd/nfsd.h
index 2571f85..2812ed5 100644
--- a/include/linux/nfsd/nfsd.h
+++ b/include/linux/nfsd/nfsd.h
@@ -57,8 +57,8 @@
 extern struct mutex		nfsd_mutex;
 extern struct svc_serv		*nfsd_serv;
 extern spinlock_t		nfsd_drc_lock;
-extern unsigned int		nfsd_drc_max_pages;
-extern unsigned int		nfsd_drc_pages_used;
+extern unsigned int		nfsd_drc_max_mem;
+extern unsigned int		nfsd_drc_mem_used;
 
 extern struct seq_operations nfs_exports_op;
 
diff --git a/include/linux/nfsd/state.h b/include/linux/nfsd/state.h
index 57ab2ed..a6c87d6 100644
--- a/include/linux/nfsd/state.h
+++ b/include/linux/nfsd/state.h
@@ -96,6 +96,7 @@
 #define NFSD_MAX_SLOTS_PER_SESSION	128
 /* Maximum number of pages per slot cache entry */
 #define NFSD_PAGES_PER_SLOT	1
+#define NFSD_SLOT_CACHE_SIZE		PAGE_SIZE
 /* Maximum number of operations per session compound */
 #define NFSD_MAX_OPS_PER_COMPOUND	16