include/linux-callb.h

   1 #ifndef _LINUX_CALLB_H
   2 #define _LINUX_CALLB_H
   3
   4 #ifdef  __cplusplus
   5 extern "C" {
   6 #endif
   7
   8 #include <linux-mutex.h>
   9
  10 #define DEBUG_CALLB
  11
  12 #ifndef DEBUG_CALLB
  13 #define CALLB_CPR_ASSERT(cp)            BUG_ON(!(MUTEX_HELD((cp)->cc_lockp)));
  14 #else
  15 #define CALLB_CPR_ASSERT(cp)
  16 #endif
  17
  18
  19 typedef struct callb_cpr {
  20         kmutex_t        *cc_lockp;
  21 } callb_cpr_t;
  22
  23 #define CALLB_CPR_INIT(cp, lockp, func, name)   {               \
  24         (cp)->cc_lockp = lockp;                                 \
  25 }
  26
  27 #define CALLB_CPR_SAFE_BEGIN(cp) {                              \
  28         CALLB_CPR_ASSERT(cp);                                   \
  29 }
  30
  31 #define CALLB_CPR_SAFE_END(cp, lockp) {                         \
  32         CALLB_CPR_ASSERT(cp);                                   \
  33 }
  34
  35 #define CALLB_CPR_EXIT(cp) {                                    \
  36         ASSERT(MUTEX_HELD((cp)->cc_lockp));                     \
  37         mutex_exit((cp)->cc_lockp);                             \
  38 }
  39
  40 #ifdef  __cplusplus
  41 }
  42 #endif
  43
  44 #endif  /* _LINUX_CALLB_H */
  45