/* -*- 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 (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2012, Whamcloud, Inc.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
*/
#ifndef _LL_H
#define _LL_H
+/** \defgroup lite lite
+ *
+ * @{
+ */
+
#if defined(__linux__)
#include <linux/lustre_lite.h>
#elif defined(__APPLE__)
#include <lustre_mds.h>
#include <lustre_ha.h>
-#ifdef __KERNEL__
-
-/* careful, this is easy to screw up */
-#define PAGE_CACHE_MAXBYTES ((__u64)(~0UL) << CFS_PAGE_SHIFT)
-
-#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)
struct lustre_client_ocd {
/*
* This is conjunction of connect_flags across all imports (LOVs) this
- * mount is connected to. This field is updated by ll_ocd_update()
+ * mount is connected to. This field is updated by cl_ocd_update()
* under ->lco_lock.
*/
- __u64 lco_flags;
- spinlock_t lco_lock;
+ __u64 lco_flags;
+ cfs_mutex_t lco_lock;
+ struct obd_export *lco_md_exp;
+ struct obd_export *lco_dt_exp;
};
/*
- * 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
- * lustre_common_fill_super().
- *
- * Again, it is dumped into this header for the lack of a better place.
+ * Chain of hash overflow pages.
*/
-static inline int ll_ocd_update(struct obd_device *host,
- struct obd_device *watched,
- enum obd_notify_event ev, void *owner)
+struct ll_dir_chain {
+ /* XXX something. Later */
+};
+
+static inline void ll_dir_chain_init(struct ll_dir_chain *chain)
{
- struct lustre_client_ocd *lco;
- struct client_obd *cli;
- __u64 flags;
- int result;
-
- ENTRY;
- if (!strcmp(watched->obd_type->typ_name, LUSTRE_OSC_NAME)) {
- cli = &watched->u.cli;
- lco = owner;
- flags = cli->cl_import->imp_connect_data.ocd_connect_flags;
- CDEBUG(D_SUPER, "Changing connect_flags: "LPX64" -> "LPX64"\n",
- lco->lco_flags, flags);
- spin_lock(&lco->lco_lock);
- lco->lco_flags &= flags;
- spin_unlock(&lco->lco_lock);
- result = 0;
- } else {
- CERROR("unexpected notification from %s %s!\n",
- watched->obd_type->typ_name,
- watched->obd_name);
- result = -EINVAL;
- }
- RETURN(result);
}
+static inline void ll_dir_chain_fini(struct ll_dir_chain *chain)
+{
+}
+
+static inline unsigned long hash_x_index(__u64 hash, int hash64)
+{
+#ifdef __KERNEL__
+ if (BITS_PER_LONG == 32 && hash64)
+ hash >>= 32;
+#endif
+ return ~0UL - hash;
+}
+
+/** @} lite */
+
#endif