From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759323Ab3FMWmM (ORCPT ); Thu, 13 Jun 2013 18:42:12 -0400 Received: from userp1040.oracle.com ([156.151.31.81]:26340 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752899Ab3FMWmK (ORCPT ); Thu, 13 Jun 2013 18:42:10 -0400 From: Sasha Levin To: torvalds@linux-foundation.org Cc: mingo@kernel.org, peterz@infradead.org, linux-kernel@vger.kernel.org, Sasha Levin Subject: [Patch v5 5/9] liblockdep: Add public headers for pthread_rwlock_t implementation Date: Thu, 13 Jun 2013 18:41:20 -0400 Message-Id: <1371163284-6346-6-git-send-email-sasha.levin@oracle.com> X-Mailer: git-send-email 1.8.1.2 In-Reply-To: <1371163284-6346-1-git-send-email-sasha.levin@oracle.com> References: <1371163284-6346-1-git-send-email-sasha.levin@oracle.com> X-Source-IP: acsinet22.oracle.com [141.146.126.238] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Both pthreads and lockdep support dealing with rwlocks, so here's the liblockdep implementation for those. Signed-off-by: Sasha Levin --- tools/lib/lockdep/include/liblockdep/rwlock.h | 86 +++++++++++++++++++++++++++ 1 file changed, 86 insertions(+) create mode 100644 tools/lib/lockdep/include/liblockdep/rwlock.h diff --git a/tools/lib/lockdep/include/liblockdep/rwlock.h b/tools/lib/lockdep/include/liblockdep/rwlock.h new file mode 100644 index 0000000..a680ab8 --- /dev/null +++ b/tools/lib/lockdep/include/liblockdep/rwlock.h @@ -0,0 +1,86 @@ +#ifndef _LIBLOCKDEP_RWLOCK_H +#define _LIBLOCKDEP_RWLOCK_H + +#include +#include "common.h" + +struct liblockdep_pthread_rwlock { + pthread_rwlock_t rwlock; + struct lockdep_map dep_map; +}; + +typedef struct liblockdep_pthread_rwlock liblockdep_pthread_rwlock_t; + +#define LIBLOCKDEP_PTHREAD_RWLOCK_INITIALIZER(rwl) \ + (struct liblockdep_pthread_rwlock) { \ + .rwlock = PTHREAD_RWLOCK_INITIALIZER, \ + .dep_map = STATIC_LOCKDEP_MAP_INIT(#rwl, &((&(rwl))->dep_map)), \ +} + +static inline int __rwlock_init(liblockdep_pthread_rwlock_t *lock, + const char *name, + struct lock_class_key *key, + const pthread_rwlockattr_t *attr) +{ + lockdep_init_map(&lock->dep_map, name, key, 0); + + return pthread_rwlock_init(&lock->rwlock, attr); +} + +#define liblockdep_pthread_rwlock_init(lock, attr) \ +({ \ + static struct lock_class_key __key; \ + \ + __rwlock_init((lock), #lock, &__key, (attr)); \ +}) + +static inline int liblockdep_pthread_rwlock_rdlock(liblockdep_pthread_rwlock_t *lock) +{ + lock_acquire(&lock->dep_map, 0, 0, 2, 2, NULL, (unsigned long)_RET_IP_); + return pthread_rwlock_rdlock(&lock->rwlock); + +} + +static inline int liblockdep_pthread_rwlock_unlock(liblockdep_pthread_rwlock_t *lock) +{ + lock_release(&lock->dep_map, 0, (unsigned long)_RET_IP_); + return pthread_rwlock_unlock(&lock->rwlock); +} + +static inline int liblockdep_pthread_rwlock_wrlock(liblockdep_pthread_rwlock_t *lock) +{ + lock_acquire(&lock->dep_map, 0, 0, 0, 2, NULL, (unsigned long)_RET_IP_); + return pthread_rwlock_wrlock(&lock->rwlock); +} + +static inline int liblockdep_pthread_rwlock_tryrdlock(liblockdep_pthread_rwlock_t *lock) +{ + lock_acquire(&lock->dep_map, 0, 1, 2, 2, NULL, (unsigned long)_RET_IP_); + return pthread_rwlock_tryrdlock(&lock->rwlock) == 0 ? 1 : 0; +} + +static inline int liblockdep_pthread_rwlock_trywlock(liblockdep_pthread_rwlock_t *lock) +{ + lock_acquire(&lock->dep_map, 0, 1, 0, 2, NULL, (unsigned long)_RET_IP_); + return pthread_rwlock_trywlock(&lock->rwlock) == 0 ? 1 : 0; +} + +static inline int liblockdep_rwlock_destroy(liblockdep_pthread_rwlock_t *lock) +{ + return pthread_rwlock_destroy(&lock->rwlock); +} + +#ifdef __USE_LIBLOCKDEP + +#define pthread_rwlock_t liblockdep_pthread_rwlock_t +#define pthread_rwlock_init liblockdep_pthread_rwlock_init +#define pthread_rwlock_rdlock liblockdep_pthread_rwlock_rdlock +#define pthread_rwlock_unlock liblockdep_pthread_rwlock_unlock +#define pthread_rwlock_wrlock liblockdep_pthread_rwlock_wrlock +#define pthread_rwlock_tryrdlock liblockdep_pthread_rwlock_tryrdlock +#define pthread_rwlock_trywlock liblockdep_pthread_rwlock_trywlock +#define pthread_rwlock_destroy liblockdep_rwlock_destroy + +#endif + +#endif -- 1.8.1.2