include/linux/jump_label_ratelimit.h

   1 #ifndef _LINUX_JUMP_LABEL_RATELIMIT_H
   2 #define _LINUX_JUMP_LABEL_RATELIMIT_H
   3
   4 #include <linux/jump_label.h>
   5 #include <linux/workqueue.h>
   6
   7 #if defined(CC_HAVE_ASM_GOTO) && defined(CONFIG_JUMP_LABEL)
   8 struct static_key_deferred {
   9         struct static_key key;
  10         unsigned long timeout;
  11         struct delayed_work work;
  12 };
  13 #endif
  14
  15 #ifdef HAVE_JUMP_LABEL
  16 extern void static_key_slow_dec_deferred(struct static_key_deferred *key);
  17 extern void
  18 jump_label_rate_limit(struct static_key_deferred *key, unsigned long rl);
  19
  20 #else   /* !HAVE_JUMP_LABEL */
  21 struct static_key_deferred {
  22         struct static_key  key;
  23 };
  24 static inline void static_key_slow_dec_deferred(struct static_key_deferred *key)
  25 {
  26         STATIC_KEY_CHECK_USE();
  27         static_key_slow_dec(&key->key);
  28 }
  29 static inline void
  30 jump_label_rate_limit(struct static_key_deferred *key,
  31                 unsigned long rl)
  32 {
  33         STATIC_KEY_CHECK_USE();
  34 }
  35 #endif  /* HAVE_JUMP_LABEL */
  36 #endif  /* _LINUX_JUMP_LABEL_RATELIMIT_H */