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rtmutex: Remove unused argument from rt_mutex_proxy_unlock()

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Nothing uses the argument. Remove it as preparation to use
pi_state_update_owner().

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: stable@vger.kernel.org
This commit is contained in:
Thomas Gleixner 2021-01-20 11:32:07 +01:00
parent c5cade200a
commit 2156ac1934
3 changed files with 3 additions and 5 deletions
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2
kernel/futex.c
View File

@ -818,7 +818,7 @@ static void put_pi_state(struct futex_pi_state *pi_state)
list_del_init(&pi_state->list); list_del_init(&pi_state->list);
raw_spin_unlock(&owner->pi_lock); raw_spin_unlock(&owner->pi_lock);
} }
rt_mutex_proxy_unlock(&pi_state->pi_mutex, owner); rt_mutex_proxy_unlock(&pi_state->pi_mutex);
raw_spin_unlock_irqrestore(&pi_state->pi_mutex.wait_lock, flags); raw_spin_unlock_irqrestore(&pi_state->pi_mutex.wait_lock, flags);
} }

3
kernel/locking/rtmutex.c
View File

@ -1716,8 +1716,7 @@ void rt_mutex_init_proxy_locked(struct rt_mutex *lock,
* possible because it belongs to the pi_state which is about to be freed * possible because it belongs to the pi_state which is about to be freed
* and it is not longer visible to other tasks. * and it is not longer visible to other tasks.
*/ */
void rt_mutex_proxy_unlock(struct rt_mutex *lock, void rt_mutex_proxy_unlock(struct rt_mutex *lock)
struct task_struct *proxy_owner)
{ {
debug_rt_mutex_proxy_unlock(lock); debug_rt_mutex_proxy_unlock(lock);
rt_mutex_set_owner(lock, NULL); rt_mutex_set_owner(lock, NULL);

3
kernel/locking/rtmutex_common.h
View File

@ -133,8 +133,7 @@ enum rtmutex_chainwalk {
extern struct task_struct *rt_mutex_next_owner(struct rt_mutex *lock); extern struct task_struct *rt_mutex_next_owner(struct rt_mutex *lock);
extern void rt_mutex_init_proxy_locked(struct rt_mutex *lock, extern void rt_mutex_init_proxy_locked(struct rt_mutex *lock,
struct task_struct *proxy_owner); struct task_struct *proxy_owner);
extern void rt_mutex_proxy_unlock(struct rt_mutex *lock, extern void rt_mutex_proxy_unlock(struct rt_mutex *lock);
struct task_struct *proxy_owner);
extern void rt_mutex_init_waiter(struct rt_mutex_waiter *waiter); extern void rt_mutex_init_waiter(struct rt_mutex_waiter *waiter);
extern int __rt_mutex_start_proxy_lock(struct rt_mutex *lock, extern int __rt_mutex_start_proxy_lock(struct rt_mutex *lock,
struct rt_mutex_waiter *waiter, struct rt_mutex_waiter *waiter,