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![Arnaldo Carvalho de Melo](/assets/img/avatar_default.png)
Check that it is not needed and remove, fixing up some fallout for places where it was only serving to get something else. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-9h6dg6lsqe2usyqjh5rrues4@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
33 lines
710 B
C
33 lines
710 B
C
// SPDX-License-Identifier: GPL-2.0
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#include "util.h"
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#include "rwsem.h"
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int init_rwsem(struct rw_semaphore *sem)
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{
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return pthread_rwlock_init(&sem->lock, NULL);
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}
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int exit_rwsem(struct rw_semaphore *sem)
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{
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return pthread_rwlock_destroy(&sem->lock);
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}
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int down_read(struct rw_semaphore *sem)
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{
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return perf_singlethreaded ? 0 : pthread_rwlock_rdlock(&sem->lock);
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}
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int up_read(struct rw_semaphore *sem)
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{
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return perf_singlethreaded ? 0 : pthread_rwlock_unlock(&sem->lock);
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}
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int down_write(struct rw_semaphore *sem)
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{
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return perf_singlethreaded ? 0 : pthread_rwlock_wrlock(&sem->lock);
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}
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int up_write(struct rw_semaphore *sem)
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{
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return perf_singlethreaded ? 0 : pthread_rwlock_unlock(&sem->lock);
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}
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