Commit-ID: 7fc788818c8f317c3a9d3331382aeecf4b726a3c Gitweb: http://git.kernel.org/tip/7fc788818c8f317c3a9d3331382aeecf4b726a3c Author: Sasha Levin <sasha.levin@xxxxxxxxxx> AuthorDate: Sun, 3 Feb 2013 20:50:41 -0500 Committer: Ingo Molnar <mingo@xxxxxxxxxx> CommitDate: Mon, 4 Feb 2013 11:39:06 +0100 liblockdep: Add public headers for pthread_rwlock_t implementation Both pthreads and lockdep support dealing with rwlocks, so here's the liblockdep implementation for those. Signed-off-by: Sasha Levin <sasha.levin@xxxxxxxxxx> Cc: paulus@xxxxxxxxx Cc: acme@xxxxxxxxxxxxxxxxxx Cc: penberg@xxxxxxxxxx Cc: peterz@xxxxxxxxxxxxx Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Link: http://lkml.kernel.org/r/1359942644-26371-4-git-send-email-sasha.levin@xxxxxxxxxx Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx> --- tools/lib/lockdep/include/liblockdep/rwlock.h | 91 +++++++++++++++++++++++++++ 1 file changed, 91 insertions(+) diff --git a/tools/lib/lockdep/include/liblockdep/rwlock.h b/tools/lib/lockdep/include/liblockdep/rwlock.h new file mode 100644 index 0000000..26f9a68 --- /dev/null +++ b/tools/lib/lockdep/include/liblockdep/rwlock.h @@ -0,0 +1,91 @@ +#ifndef _LIBLOCKDEP_RWLOCK_H +#define _LIBLOCKDEP_RWLOCK_H + +#ifdef __USE_LIBLOCKDEP + +#include <pthread.h> +#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) +{ + void *ip = _THIS_IP_; + lock_acquire(&lock->dep_map, 0, 0, 2, 2, NULL, (unsigned long)ip); + return pthread_rwlock_rdlock(&lock->rwlock); + +} + +static inline int liblockdep_pthread_rwlock_unlock(liblockdep_pthread_rwlock_t *lock) +{ + void *ip = _THIS_IP_; + lock_release(&lock->dep_map, 0, (unsigned long)ip); + return pthread_rwlock_unlock(&lock->rwlock); +} + +static inline int liblockdep_pthread_rwlock_wrlock(liblockdep_pthread_rwlock_t *lock) +{ + void *ip = _THIS_IP_; + lock_acquire(&lock->dep_map, 0, 0, 0, 2, NULL, (unsigned long)ip); + return pthread_rwlock_wrlock(&lock->rwlock); +} + +static inline int liblockdep_pthread_rwlock_tryrdlock(liblockdep_pthread_rwlock_t *lock) +{ + void *ip = _THIS_IP_; + lock_acquire(&lock->dep_map, 0, 1, 2, 2, NULL, (unsigned long)ip); + return pthread_rwlock_tryrdlock(&lock->rwlock) == 0 ? 1 : 0; +} + +static inline int liblockdep_pthread_rwlock_trywlock(liblockdep_pthread_rwlock_t *lock) +{ + void *ip = _THIS_IP_; + lock_acquire(&lock->dep_map, 0, 1, 0, 2, NULL, (unsigned long)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); +} + +#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 -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html