linux-stable/include/linux/ceph/ceph_debug.h
Yehuda Sadeh 3d14c5d2b6 ceph: factor out libceph from Ceph file system
This factors out protocol and low-level storage parts of ceph into a
separate libceph module living in net/ceph and include/linux/ceph.  This
is mostly a matter of moving files around.  However, a few key pieces
of the interface change as well:

 - ceph_client becomes ceph_fs_client and ceph_client, where the latter
   captures the mon and osd clients, and the fs_client gets the mds client
   and file system specific pieces.
 - Mount option parsing and debugfs setup is correspondingly broken into
   two pieces.
 - The mon client gets a generic handler callback for otherwise unknown
   messages (mds map, in this case).
 - The basic supported/required feature bits can be expanded (and are by
   ceph_fs_client).

No functional change, aside from some subtle error handling cases that got
cleaned up in the refactoring process.

Signed-off-by: Sage Weil <sage@newdream.net>
2010-10-20 15:37:28 -07:00

38 lines
929 B
C

#ifndef _FS_CEPH_DEBUG_H
#define _FS_CEPH_DEBUG_H
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#ifdef CONFIG_CEPH_LIB_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("%.*s %12.12s:%-4d : " fmt, \
8 - (int)sizeof(KBUILD_MODNAME), " ", \
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