1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright 2008 Sun Microsystems, Inc. All rights reserved
30 * Use is subject to license terms.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
37 #ifndef __LNET_LINUX_LIB_LNET_H__
38 #define __LNET_LINUX_LIB_LNET_H__
40 #ifndef __LNET_LIB_LNET_H__
41 #error Do not #include this file directly. #include <lnet/lib-lnet.h> instead
45 # include <asm/page.h>
46 # include <linux/string.h>
48 # include <libcfs/libcfs.h>
51 lnet_page2phys (struct page *p)
53 /* compiler optimizer will elide unused branches */
55 switch (sizeof(typeof(page_to_phys(p)))) {
57 /* page_to_phys returns a 32 bit physical address. This must
58 * be a 32 bit machine with <= 4G memory and we must ensure we
59 * don't sign extend when converting to 64 bits. */
60 return (unsigned long)page_to_phys(p);
63 /* page_to_phys returns a 64 bit physical address :) */
64 return page_to_phys(p);
72 #else /* __KERNEL__ */
73 # include <libcfs/list.h>
75 # ifdef HAVE_LIBPTHREAD
82 #endif /* __LNET_LINUX_LIB_LNET_H__ */