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| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-03-22 12:17:26 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-03-22 12:17:26 +0100 |
| commit | f9b44121b34174ae4f243a568393fc3225842e75 (patch) | |
| tree | 943f68cd7458d08a9e8809ed0a10b71b23911f3e /fs/ceph/ceph_debug.h | |
| parent | ASoC: pxa-pcm-lib: initialize DMA channel to -1 (diff) | |
| parent | Linux 2.6.34-rc2 (diff) | |
| download | linux-f9b44121b34174ae4f243a568393fc3225842e75.tar.xz linux-f9b44121b34174ae4f243a568393fc3225842e75.zip | |
Merge commit 'v2.6.34-rc2' into for-2.6.34
Diffstat (limited to 'fs/ceph/ceph_debug.h')
| -rw-r--r-- | fs/ceph/ceph_debug.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/fs/ceph/ceph_debug.h b/fs/ceph/ceph_debug.h new file mode 100644 index 000000000000..1818c2305610 --- /dev/null +++ b/fs/ceph/ceph_debug.h @@ -0,0 +1,37 @@ +#ifndef _FS_CEPH_DEBUG_H +#define _FS_CEPH_DEBUG_H + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#ifdef CONFIG_CEPH_FS_PRETTYDEBUG + +/* + * wrap pr_debug to include a filename:lineno prefix on each line. + * this incurs some overhead (kernel size and execution time) due to + * the extra function call at each call site. + */ + +# if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) +extern const char *ceph_file_part(const char *s, int len); +# define dout(fmt, ...) \ + pr_debug(" %12.12s:%-4d : " fmt, \ + ceph_file_part(__FILE__, sizeof(__FILE__)), \ + __LINE__, ##__VA_ARGS__) +# else +/* faux printk call just to see any compiler warnings. */ +# define dout(fmt, ...) do { \ + if (0) \ + printk(KERN_DEBUG fmt, ##__VA_ARGS__); \ + } while (0) +# endif + +#else + +/* + * or, just wrap pr_debug + */ +# define dout(fmt, ...) pr_debug(" " fmt, ##__VA_ARGS__) + +#endif + +#endif |