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authorDavid Howells <dhowells@redhat.com>2009-04-03 19:42:42 +0400
committerDavid Howells <dhowells@redhat.com>2009-04-03 19:42:42 +0400
commit8ec442ae4c6577ed181682e534d4eef524e30b3c (patch)
tree44fb9013929f7227781525d1904ac16d6723ce6e /fs/nfs/fscache.h
parent3b9ce977b2f31b6c396b6fb620df9881a30fac9d (diff)
downloadlinux-8ec442ae4c6577ed181682e534d4eef524e30b3c.tar.xz
NFS: Register NFS for caching and retrieve the top-level index
Register NFS for caching and retrieve the top-level cache index object cookie. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Steve Dickson <steved@redhat.com> Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Tested-by: Daire Byrne <Daire.Byrne@framestore.com>
Diffstat (limited to 'fs/nfs/fscache.h')
-rw-r--r--fs/nfs/fscache.h35
1 files changed, 35 insertions, 0 deletions
diff --git a/fs/nfs/fscache.h b/fs/nfs/fscache.h
new file mode 100644
index 000000000000..ccfcdc58066e
--- /dev/null
+++ b/fs/nfs/fscache.h
@@ -0,0 +1,35 @@
+/* NFS filesystem cache interface definitions
+ *
+ * Copyright (C) 2008 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#ifndef _NFS_FSCACHE_H
+#define _NFS_FSCACHE_H
+
+#include <linux/nfs_fs.h>
+#include <linux/nfs_mount.h>
+#include <linux/nfs4_mount.h>
+#include <linux/fscache.h>
+
+#ifdef CONFIG_NFS_FSCACHE
+
+/*
+ * fscache-index.c
+ */
+extern struct fscache_netfs nfs_fscache_netfs;
+
+extern int nfs_fscache_register(void);
+extern void nfs_fscache_unregister(void);
+
+#else /* CONFIG_NFS_FSCACHE */
+static inline int nfs_fscache_register(void) { return 0; }
+static inline void nfs_fscache_unregister(void) {}
+
+#endif /* CONFIG_NFS_FSCACHE */
+#endif /* _NFS_FSCACHE_H */