b=17631

[fs/lustre-release.git] / lustre / include / lustre_lite.h

diff --git a/lustre/include/lustre_lite.h b/lustre/include/lustre_lite.h
index e4e8ee8..34bb9f1 100644 (file)
--- a/lustre/include/lustre_lite.h
+++ b/lustre/include/lustre_lite.h
@@ -1,5 +1,37 @@
 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
  * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ * GPL HEADER START
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright  2008 Sun Microsystems, Inc. All rights reserved
+ * Use is subject to license terms.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
  */
 
 #ifndef _LL_H
@@ -28,11 +60,7 @@
 
 #endif
 
-#define LLAP_FROM_COOKIE(c)                                                    \
-        (LASSERT(((struct ll_async_page *)(c))->llap_magic == LLAP_MAGIC),     \
-         (struct ll_async_page *)(c))
-
-// 4*1024*1024
+/* 4UL * 1024 * 1024 */
 #define LL_MAX_BLKSIZE_BITS     (22)
 #define LL_MAX_BLKSIZE          (1UL<<LL_MAX_BLKSIZE_BITS)
 
@@ -100,7 +128,7 @@ struct lustre_client_ocd {
         spinlock_t lco_lock;
 };
 
-/*
+/**
  * This function is used as an upcall-callback hooked by liblustre and llite
  * clients into obd_notify() listeners chain to handle notifications about
  * change of import connect_flags. See llu_fsswop_mount() and
@@ -137,4 +165,23 @@ static inline int ll_ocd_update(struct obd_device *host,
         RETURN(result);
 }
 
+/*
+ * Chain of hash overflow pages.
+ */
+struct ll_dir_chain {
+        /* XXX something. Later */
+};
+
+static inline void ll_dir_chain_init(struct ll_dir_chain *chain)
+{
+}
+
+static inline void ll_dir_chain_fini(struct ll_dir_chain *chain)
+{
+}
+
+static inline __u32 hash_x_index(__u32 value)
+{
+        return ((__u32)~0) - value;
+}
 #endif