X-Git-Url: http://nsz.repo.hu/git/?p=musl;a=blobdiff_plain;f=src%2Fthread%2F__lock.c;h=2f345ae7af02153c1bffbd5cbfc0f0be860127a6;hp=d1734096b1ab81d024372d234f4d1e50eda7dad2;hb=96fbcf7d80f469e39d1dd12533f8bb8d13b64fe5;hpb=f34d0ea511e552851c8c6148fb113816f41e6759

diff --git a/src/thread/__lock.c b/src/thread/__lock.c
index d1734096..2f345ae7 100644
--- a/src/thread/__lock.c
+++ b/src/thread/__lock.c
@@ -1,32 +1,12 @@
 #include "pthread_impl.h"
 
-void __lock_2(volatile int *l)
-{
-	if (!__syscall(SYS_futex, l, FUTEX_LOCK_PI, 0, 0))
-		return;
-	int old, tid = __pthread_self()->tid;
-	while ((old = a_cas(l, 0, tid))) {
-		a_cas(l, old, old|INT_MIN);
-		__syscall(SYS_futex, l, FUTEX_WAIT, old|INT_MIN, 0);
-	}
-}
-
 void __lock(volatile int *l)
 {
-	if (a_cas(l, 0, __pthread_self()->tid)) __lock_2(l);
-}
-
-void __unlock_2(volatile int *l)
-{
-	if (__syscall(SYS_futex, l, FUTEX_UNLOCK_PI)) {
-		*l = 0;
-		__syscall(SYS_futex, l, FUTEX_WAKE, 1);
-	}
+	while (a_swap(l, 1)) __wait(l, l+1, 1, 1);
 }
 
 void __unlock(volatile int *l)
 {
-	int old = *l;
-	if (!(old & INT_MIN) && a_cas(l, old, 0)==old) return;
-	__unlock_2(l);
+	a_store(l, 0);
+	if (l[1]) __wake(l, 1, 1);
 }