diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2021-08-16 00:28:52 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2021-08-17 20:05:03 +0300 |
| commit | 653a5b0bd9b405db999d5f4bfe08d34691e2c55a (patch) | |
| tree | 2cfe903f8230c8f0112b10b348326af0456add18 /include/linux/ww_mutex.h | |
| parent | bdb189148ded4ffa826a1387074c795fda43b3ba (diff) | |
| download | linux-653a5b0bd9b405db999d5f4bfe08d34691e2c55a.tar.xz | |
locking/ww_mutex: Abstract out internal lock accesses
Accessing the internal wait_lock of mutex and rtmutex is slightly
different. Provide helper functions for that.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20210815211304.734635961@linutronix.de
Diffstat (limited to 'include/linux/ww_mutex.h')
| -rw-r--r-- | include/linux/ww_mutex.h | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/include/linux/ww_mutex.h b/include/linux/ww_mutex.h index 590aaa207757..3438e302a52a 100644 --- a/include/linux/ww_mutex.h +++ b/include/linux/ww_mutex.h @@ -19,6 +19,11 @@ #include <linux/mutex.h> +#define WW_MUTEX_BASE mutex +#define ww_mutex_base_init(l,n,k) __mutex_init(l,n,k) +#define ww_mutex_base_trylock(l) mutex_trylock(l) +#define ww_mutex_base_is_locked(b) mutex_is_locked((b)) + struct ww_class { atomic_long_t stamp; struct lock_class_key acquire_key; @@ -29,7 +34,7 @@ struct ww_class { }; struct ww_mutex { - struct mutex base; + struct WW_MUTEX_BASE base; struct ww_acquire_ctx *ctx; #ifdef CONFIG_DEBUG_MUTEXES struct ww_class *ww_class; @@ -82,7 +87,7 @@ struct ww_acquire_ctx { static inline void ww_mutex_init(struct ww_mutex *lock, struct ww_class *ww_class) { - __mutex_init(&lock->base, ww_class->mutex_name, &ww_class->mutex_key); + ww_mutex_base_init(&lock->base, ww_class->mutex_name, &ww_class->mutex_key); lock->ctx = NULL; #ifdef CONFIG_DEBUG_MUTEXES lock->ww_class = ww_class; @@ -330,7 +335,7 @@ extern void ww_mutex_unlock(struct ww_mutex *lock); */ static inline int __must_check ww_mutex_trylock(struct ww_mutex *lock) { - return mutex_trylock(&lock->base); + return ww_mutex_base_trylock(&lock->base); } /*** @@ -354,7 +359,7 @@ static inline void ww_mutex_destroy(struct ww_mutex *lock) */ static inline bool ww_mutex_is_locked(struct ww_mutex *lock) { - return mutex_is_locked(&lock->base); + return ww_mutex_base_is_locked(&lock->base); } #endif |