Linux Kernel  3.7.1
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
internal.h
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2010 Wang Lei
3  * Author(s): Wang Lei ([email protected]). All Rights Reserved.
4  *
5  * Internal DNS Rsolver stuff
6  *
7  * This library is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU Lesser General Public License as published
9  * by the Free Software Foundation; either version 2.1 of the License, or
10  * (at your option) any later version.
11  *
12  * This library is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
15  * the GNU Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public License
18  * along with this library; if not, write to the Free Software
19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20  */
21 
22 #include <linux/compiler.h>
23 #include <linux/kernel.h>
24 #include <linux/sched.h>
25 
26 /*
27  * dns_key.c
28  */
29 extern const struct cred *dns_resolver_cache;
30 
31 /*
32  * debug tracing
33  */
34 extern unsigned int dns_resolver_debug;
35 
36 #define kdebug(FMT, ...) \
37 do { \
38  if (unlikely(dns_resolver_debug)) \
39  printk(KERN_DEBUG "[%-6.6s] "FMT"\n", \
40  current->comm, ##__VA_ARGS__); \
41 } while (0)
42 
43 #define kenter(FMT, ...) kdebug("==> %s("FMT")", __func__, ##__VA_ARGS__)
44 #define kleave(FMT, ...) kdebug("<== %s()"FMT"", __func__, ##__VA_ARGS__)