From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file
---
kernel/fs/cifs/cifs_debug.h | 142 ++++++++++++++++++++++++++++++++++++-----------
1 files changed, 108 insertions(+), 34 deletions(-)
diff --git a/kernel/fs/cifs/cifs_debug.h b/kernel/fs/cifs/cifs_debug.h
index f4f3f08..5e66dab 100644
--- a/kernel/fs/cifs/cifs_debug.h
+++ b/kernel/fs/cifs/cifs_debug.h
@@ -1,26 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
*
* Copyright (c) International Business Machines Corp., 2000,2002
* Modified by Steve French (sfrench@us.ibm.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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 for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
*/
#ifndef _H_CIFS_DEBUG
#define _H_CIFS_DEBUG
+
+#ifdef pr_fmt
+#undef pr_fmt
+#endif
+
+#define pr_fmt(fmt) "CIFS: " fmt
void cifs_dump_mem(char *label, void *data, int length);
void cifs_dump_detail(void *buf, struct TCP_Server_Info *ptcp_info);
@@ -47,28 +39,94 @@
*/
#ifdef CONFIG_CIFS_DEBUG
+
+/*
+ * When adding tracepoints and debug messages we have various choices.
+ * Some considerations:
+ *
+ * Use cifs_dbg(VFS, ...) for things we always want logged, and the user to see
+ * cifs_info(...) slightly less important, admin can filter via loglevel > 6
+ * cifs_dbg(FYI, ...) minor debugging messages, off by default
+ * trace_smb3_* ftrace functions are preferred for complex debug messages
+ * intended for developers or experienced admins, off by default
+ */
+
+/* Information level messages, minor events */
+#define cifs_info_func(ratefunc, fmt, ...) \
+ pr_info_ ## ratefunc(fmt, ##__VA_ARGS__)
+
+#define cifs_info(fmt, ...) \
+ cifs_info_func(ratelimited, fmt, ##__VA_ARGS__)
+
/* information message: e.g., configuration, major event */
-#define cifs_dbg_func(ratefunc, type, fmt, ...) \
-do { \
- if ((type) & FYI && cifsFYI & CIFS_INFO) { \
- pr_debug_ ## ratefunc("%s: " \
- fmt, __FILE__, ##__VA_ARGS__); \
- } else if ((type) & VFS) { \
- pr_err_ ## ratefunc("CIFS VFS: " \
- fmt, ##__VA_ARGS__); \
- } else if ((type) & NOISY && (NOISY != 0)) { \
- pr_debug_ ## ratefunc(fmt, ##__VA_ARGS__); \
- } \
+#define cifs_dbg_func(ratefunc, type, fmt, ...) \
+do { \
+ if ((type) & FYI && cifsFYI & CIFS_INFO) { \
+ pr_debug_ ## ratefunc("%s: " fmt, \
+ __FILE__, ##__VA_ARGS__); \
+ } else if ((type) & VFS) { \
+ pr_err_ ## ratefunc("VFS: " fmt, ##__VA_ARGS__); \
+ } else if ((type) & NOISY && (NOISY != 0)) { \
+ pr_debug_ ## ratefunc(fmt, ##__VA_ARGS__); \
+ } \
} while (0)
-#define cifs_dbg(type, fmt, ...) \
-do { \
- if ((type) & ONCE) \
- cifs_dbg_func(once, \
- type, fmt, ##__VA_ARGS__); \
- else \
- cifs_dbg_func(ratelimited, \
- type, fmt, ##__VA_ARGS__); \
+#define cifs_dbg(type, fmt, ...) \
+do { \
+ if ((type) & ONCE) \
+ cifs_dbg_func(once, type, fmt, ##__VA_ARGS__); \
+ else \
+ cifs_dbg_func(ratelimited, type, fmt, ##__VA_ARGS__); \
+} while (0)
+
+#define cifs_server_dbg_func(ratefunc, type, fmt, ...) \
+do { \
+ const char *sn = ""; \
+ if (server && server->hostname) \
+ sn = server->hostname; \
+ if ((type) & FYI && cifsFYI & CIFS_INFO) { \
+ pr_debug_ ## ratefunc("%s: \\\\%s " fmt, \
+ __FILE__, sn, ##__VA_ARGS__); \
+ } else if ((type) & VFS) { \
+ pr_err_ ## ratefunc("VFS: \\\\%s " fmt, \
+ sn, ##__VA_ARGS__); \
+ } else if ((type) & NOISY && (NOISY != 0)) { \
+ pr_debug_ ## ratefunc("\\\\%s " fmt, \
+ sn, ##__VA_ARGS__); \
+ } \
+} while (0)
+
+#define cifs_server_dbg(type, fmt, ...) \
+do { \
+ if ((type) & ONCE) \
+ cifs_server_dbg_func(once, type, fmt, ##__VA_ARGS__); \
+ else \
+ cifs_server_dbg_func(ratelimited, type, fmt, \
+ ##__VA_ARGS__); \
+} while (0)
+
+#define cifs_tcon_dbg_func(ratefunc, type, fmt, ...) \
+do { \
+ const char *tn = ""; \
+ if (tcon && tcon->treeName) \
+ tn = tcon->treeName; \
+ if ((type) & FYI && cifsFYI & CIFS_INFO) { \
+ pr_debug_ ## ratefunc("%s: %s " fmt, \
+ __FILE__, tn, ##__VA_ARGS__); \
+ } else if ((type) & VFS) { \
+ pr_err_ ## ratefunc("VFS: %s " fmt, tn, ##__VA_ARGS__); \
+ } else if ((type) & NOISY && (NOISY != 0)) { \
+ pr_debug_ ## ratefunc("%s " fmt, tn, ##__VA_ARGS__); \
+ } \
+} while (0)
+
+#define cifs_tcon_dbg(type, fmt, ...) \
+do { \
+ if ((type) & ONCE) \
+ cifs_tcon_dbg_func(once, type, fmt, ##__VA_ARGS__); \
+ else \
+ cifs_tcon_dbg_func(ratelimited, type, fmt, \
+ ##__VA_ARGS__); \
} while (0)
/*
@@ -81,6 +139,22 @@
if (0) \
pr_debug(fmt, ##__VA_ARGS__); \
} while (0)
+
+#define cifs_server_dbg(type, fmt, ...) \
+do { \
+ if (0) \
+ pr_debug("\\\\%s " fmt, \
+ server->hostname, ##__VA_ARGS__); \
+} while (0)
+
+#define cifs_tcon_dbg(type, fmt, ...) \
+do { \
+ if (0) \
+ pr_debug("%s " fmt, tcon->treeName, ##__VA_ARGS__); \
+} while (0)
+
+#define cifs_info(fmt, ...) \
+ pr_info(fmt, ##__VA_ARGS__)
#endif
#endif /* _H_CIFS_DEBUG */
--
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