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author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2013-12-16 02:04:49 -0800 |
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committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2013-12-16 02:04:49 -0800 |
commit | 348324c5b10bcba8d9daabdfb85a6927311be34f (patch) | |
tree | d06ca3a264407a14a1f36c1b798d6dc0dc1582d8 /kernel/locking/mutex.h | |
parent | 1e63bd9cc43db5400a1423a7ec8266b4e7c54bd0 (diff) | |
parent | 319e2e3f63c348a9b66db4667efa73178e18b17d (diff) |
Merge tag 'v3.13-rc4' into next
Synchronize with mainline to bring in the new keycode definitions and
new hwmon API.
Diffstat (limited to 'kernel/locking/mutex.h')
-rw-r--r-- | kernel/locking/mutex.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/kernel/locking/mutex.h b/kernel/locking/mutex.h new file mode 100644 index 00000000000..4115fbf83b1 --- /dev/null +++ b/kernel/locking/mutex.h @@ -0,0 +1,48 @@ +/* + * Mutexes: blocking mutual exclusion locks + * + * started by Ingo Molnar: + * + * Copyright (C) 2004, 2005, 2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com> + * + * This file contains mutex debugging related internal prototypes, for the + * !CONFIG_DEBUG_MUTEXES case. Most of them are NOPs: + */ + +#define spin_lock_mutex(lock, flags) \ + do { spin_lock(lock); (void)(flags); } while (0) +#define spin_unlock_mutex(lock, flags) \ + do { spin_unlock(lock); (void)(flags); } while (0) +#define mutex_remove_waiter(lock, waiter, ti) \ + __list_del((waiter)->list.prev, (waiter)->list.next) + +#ifdef CONFIG_SMP +static inline void mutex_set_owner(struct mutex *lock) +{ + lock->owner = current; +} + +static inline void mutex_clear_owner(struct mutex *lock) +{ + lock->owner = NULL; +} +#else +static inline void mutex_set_owner(struct mutex *lock) +{ +} + +static inline void mutex_clear_owner(struct mutex *lock) +{ +} +#endif + +#define debug_mutex_wake_waiter(lock, waiter) do { } while (0) +#define debug_mutex_free_waiter(waiter) do { } while (0) +#define debug_mutex_add_waiter(lock, waiter, ti) do { } while (0) +#define debug_mutex_unlock(lock) do { } while (0) +#define debug_mutex_init(lock, name, key) do { } while (0) + +static inline void +debug_mutex_lock_common(struct mutex *lock, struct mutex_waiter *waiter) +{ +} |