4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2012, 2014, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
30 * Lustre is a trademark of Sun Microsystems, Inc.
32 * lustre/obdclass/debug.c
34 * Helper routines for dumping data structs for debugging.
37 #define DEBUG_SUBSYSTEM D_OTHER
40 #include <obd_support.h>
41 #include "echo_internal.h"
42 #include <lustre_net.h>
44 #define LPDS sizeof(__u64)
45 int block_debug_setup(void *addr, int len, __u64 off, __u64 id)
49 off = cpu_to_le64 (off);
50 id = cpu_to_le64 (id);
51 memcpy(addr, (char *)&off, LPDS);
52 memcpy(addr + LPDS, (char *)&id, LPDS);
54 addr += len - LPDS - LPDS;
55 memcpy(addr, (char *)&off, LPDS);
56 memcpy(addr + LPDS, (char *)&id, LPDS);
60 EXPORT_SYMBOL(block_debug_setup);
62 int block_debug_check(char *who, void *addr, int end, __u64 off, __u64 id)
69 ne_off = le64_to_cpu(off);
71 if (memcmp(addr, (char *)&ne_off, LPDS)) {
73 "%s: id %#llx offset %llu off: %#llx != %#llx\n",
74 who, id, off, *(__u64 *)addr, ne_off);
77 if (memcmp(addr + LPDS, (char *)&id, LPDS)) {
78 CDEBUG(D_ERROR, "%s: id %#llx offset %llu id: %#llx != %#llx\n",
79 who, id, off, *(__u64 *)(addr + LPDS), id);
83 addr += end - LPDS - LPDS;
84 if (memcmp(addr, (char *)&ne_off, LPDS)) {
86 "%s: id %#llx offset %llu end off: %#llx != %#llx\n",
87 who, id, off, *(__u64 *)addr, ne_off);
90 if (memcmp(addr + LPDS, (char *)&id, LPDS)) {
92 "%s: id %#llx offset %llu end id: %#llx != %#llx\n",
93 who, id, off, *(__u64 *)(addr + LPDS), id);
99 EXPORT_SYMBOL(block_debug_check);