perf bench futex: Simplify wrapper for LOCK_PI
Given that the 'val' parameter is ignored for FUTEX_LOCK_PI, get rid of the bogus deadlock detection flag in the wrapper code and avoid the extra argument, making it resemble its unlock counterpart. And if nothing else, we already only pass 0 anyway. Signed-off-by: Davidlohr Bueso <dbueso@suse.de> Cc: Davidlohr Bueso <dbueso@suse.de> Link: http://lkml.kernel.org/r/1461208447-29328-1-git-send-email-dave@stgolabs.net Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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@ -83,7 +83,7 @@ static void *workerfn(void *arg)
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do {
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do {
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int ret;
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int ret;
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again:
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again:
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ret = futex_lock_pi(w->futex, NULL, 0, futex_flag);
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ret = futex_lock_pi(w->futex, NULL, futex_flag);
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if (ret) { /* handle lock acquisition */
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if (ret) { /* handle lock acquisition */
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if (!silent)
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if (!silent)
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@ -57,13 +57,11 @@ futex_wake(u_int32_t *uaddr, int nr_wake, int opflags)
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/**
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/**
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* futex_lock_pi() - block on uaddr as a PI mutex
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* futex_lock_pi() - block on uaddr as a PI mutex
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* @detect: whether (1) or not (0) to perform deadlock detection
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*/
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*/
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static inline int
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static inline int
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futex_lock_pi(u_int32_t *uaddr, struct timespec *timeout, int detect,
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futex_lock_pi(u_int32_t *uaddr, struct timespec *timeout, int opflags)
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int opflags)
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{
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{
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return futex(uaddr, FUTEX_LOCK_PI, detect, timeout, NULL, 0, opflags);
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return futex(uaddr, FUTEX_LOCK_PI, 0, timeout, NULL, 0, opflags);
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}
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}
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/**
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/**
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