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/
31 * lustre/obdclass/debug.c
33 * Helper routines for dumping data structs for debugging.
36 #define DEBUG_SUBSYSTEM D_OTHER
39 #include <obd_support.h>
40 #include "echo_internal.h"
41 #include <lustre_net.h>
43 #define LPDS sizeof(__u64)
44 int block_debug_setup(void *addr, int len, __u64 off, __u64 id)
48 off = cpu_to_le64 (off);
49 id = cpu_to_le64 (id);
50 memcpy(addr, (char *)&off, LPDS);
51 memcpy(addr + LPDS, (char *)&id, LPDS);
53 addr += len - LPDS - LPDS;
54 memcpy(addr, (char *)&off, LPDS);
55 memcpy(addr + LPDS, (char *)&id, LPDS);
59 EXPORT_SYMBOL(block_debug_setup);
61 int block_debug_check(char *who, void *addr, int end, __u64 off, __u64 id)
68 ne_off = le64_to_cpu(off);
70 if (memcmp(addr, (char *)&ne_off, LPDS)) {
72 "%s: id %#llx offset %llu off: %#llx != %#llx\n",
73 who, id, off, *(__u64 *)addr, ne_off);
76 if (memcmp(addr + LPDS, (char *)&id, LPDS)) {
77 CDEBUG(D_ERROR, "%s: id %#llx offset %llu id: %#llx != %#llx\n",
78 who, id, off, *(__u64 *)(addr + LPDS), id);
82 addr += end - LPDS - LPDS;
83 if (memcmp(addr, (char *)&ne_off, LPDS)) {
85 "%s: id %#llx offset %llu end off: %#llx != %#llx\n",
86 who, id, off, *(__u64 *)addr, ne_off);
89 if (memcmp(addr + LPDS, (char *)&id, LPDS)) {
91 "%s: id %#llx offset %llu end id: %#llx != %#llx\n",
92 who, id, off, *(__u64 *)(addr + LPDS), id);
98 EXPORT_SYMBOL(block_debug_check);