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Wed, 15 Sep 2021 16:17:29 +0200 (CEST) Message-ID: <20210915141525.232684270@infradead.org> User-Agent: quilt/0.66 Date: Wed, 15 Sep 2021 16:07:20 +0200 From: Peter Zijlstra To: andrealmeid@collabora.com, tglx@linutronix.de, mingo@redhat.com, dvhart@infradead.org, rostedt@goodmis.org, bigeasy@linutronix.de Subject: [PATCH 10/20] futex: Rename: hb_waiter_{inc,dec,pending}() References: <20210915140710.596174479@infradead.org> MIME-Version: 1.0 X-Spam-Status: No, score=-2.4 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, SPF_HELO_NONE, SPF_NONE, TXREP autolearn=ham autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: dave@stgolabs.net, libc-alpha@sourceware.org, peterz@infradead.org, linux-api@vger.kernel.org, linux-kernel@vger.kernel.org, mtk.manpages@gmail.com, kernel@collabora.com, krisman@collabora.com Errors-To: libc-alpha-bounces+incoming=patchwork.ozlabs.org@sourceware.org Sender: "Libc-alpha" In order to prepare introducing these symbols into the global namespace; rename them: s/hb_waiters_/futex_&/g Signed-off-by: Peter Zijlstra (Intel) --- kernel/futex/core.c | 34 +++++++++++++++++----------------- 1 file changed, 17 insertions(+), 17 deletions(-) --- a/kernel/futex/core.c +++ b/kernel/futex/core.c @@ -115,8 +115,8 @@ * waiters--; (b) unlock(hash_bucket(futex)); * * Where (A) orders the waiters increment and the futex value read through - * atomic operations (see hb_waiters_inc) and where (B) orders the write - * to futex and the waiters read (see hb_waiters_pending()). + * atomic operations (see futex_hb_waiters_inc) and where (B) orders the write + * to futex and the waiters read (see futex_hb_waiters_pending()). * * This yields the following case (where X:=waiters, Y:=futex): * @@ -272,7 +272,7 @@ late_initcall(fail_futex_debugfs); /* * Reflects a new waiter being added to the waitqueue. */ -static inline void hb_waiters_inc(struct futex_hash_bucket *hb) +static inline void futex_hb_waiters_inc(struct futex_hash_bucket *hb) { #ifdef CONFIG_SMP atomic_inc(&hb->waiters); @@ -287,14 +287,14 @@ static inline void hb_waiters_inc(struct * Reflects a waiter being removed from the waitqueue by wakeup * paths. */ -static inline void hb_waiters_dec(struct futex_hash_bucket *hb) +static inline void futex_hb_waiters_dec(struct futex_hash_bucket *hb) { #ifdef CONFIG_SMP atomic_dec(&hb->waiters); #endif } -static inline int hb_waiters_pending(struct futex_hash_bucket *hb) +static inline int futex_hb_waiters_pending(struct futex_hash_bucket *hb) { #ifdef CONFIG_SMP /* @@ -723,7 +723,7 @@ static void __futex_unqueue(struct futex hb = container_of(q->lock_ptr, struct futex_hash_bucket, lock); plist_del(&q->list, &hb->chain); - hb_waiters_dec(hb); + futex_hb_waiters_dec(hb); } /* @@ -802,7 +802,7 @@ int futex_wake(u32 __user *uaddr, unsign hb = futex_hash(&key); /* Make sure we really have tasks to wakeup */ - if (!hb_waiters_pending(hb)) + if (!futex_hb_waiters_pending(hb)) return ret; spin_lock(&hb->lock); @@ -979,8 +979,8 @@ void requeue_futex(struct futex_q *q, st */ if (likely(&hb1->chain != &hb2->chain)) { plist_del(&q->list, &hb1->chain); - hb_waiters_dec(hb1); - hb_waiters_inc(hb2); + futex_hb_waiters_dec(hb1); + futex_hb_waiters_inc(hb2); plist_add(&q->list, &hb2->chain); q->lock_ptr = &hb2->lock; } @@ -1341,7 +1341,7 @@ int futex_requeue(u32 __user *uaddr1, un hb2 = futex_hash(&key2); retry_private: - hb_waiters_inc(hb2); + futex_hb_waiters_inc(hb2); double_lock_hb(hb1, hb2); if (likely(cmpval != NULL)) { @@ -1351,7 +1351,7 @@ int futex_requeue(u32 __user *uaddr1, un if (unlikely(ret)) { double_unlock_hb(hb1, hb2); - hb_waiters_dec(hb2); + futex_hb_waiters_dec(hb2); ret = get_user(curval, uaddr1); if (ret) @@ -1437,7 +1437,7 @@ int futex_requeue(u32 __user *uaddr1, un */ case -EFAULT: double_unlock_hb(hb1, hb2); - hb_waiters_dec(hb2); + futex_hb_waiters_dec(hb2); ret = fault_in_user_writeable(uaddr2); if (!ret) goto retry; @@ -1451,7 +1451,7 @@ int futex_requeue(u32 __user *uaddr1, un * - EAGAIN: The user space value changed. */ double_unlock_hb(hb1, hb2); - hb_waiters_dec(hb2); + futex_hb_waiters_dec(hb2); /* * Handle the case where the owner is in the middle of * exiting. Wait for the exit to complete otherwise @@ -1570,7 +1570,7 @@ int futex_requeue(u32 __user *uaddr1, un out_unlock: double_unlock_hb(hb1, hb2); wake_up_q(&wake_q); - hb_waiters_dec(hb2); + futex_hb_waiters_dec(hb2); return ret ? ret : task_count; } @@ -1600,7 +1600,7 @@ struct futex_hash_bucket *futex_q_lock(s * decrement the counter at futex_q_unlock() when some error has * occurred and we don't end up adding the task to the list. */ - hb_waiters_inc(hb); /* implies smp_mb(); (A) */ + futex_hb_waiters_inc(hb); /* implies smp_mb(); (A) */ q->lock_ptr = &hb->lock; @@ -1612,7 +1612,7 @@ void futex_q_unlock(struct futex_hash_bu __releases(&hb->lock) { spin_unlock(&hb->lock); - hb_waiters_dec(hb); + futex_hb_waiters_dec(hb); } void __futex_queue(struct futex_q *q, struct futex_hash_bucket *hb) @@ -1942,7 +1942,7 @@ int handle_early_requeue_pi_wakeup(struc * Unqueue the futex_q and determine which it was. */ plist_del(&q->list, &hb->chain); - hb_waiters_dec(hb); + futex_hb_waiters_dec(hb); /* Handle spurious wakeups gracefully */ ret = -EWOULDBLOCK;