minor locking optimizations

[musl] / src / thread / __lock.c

diff --git a/src/thread/__lock.c b/src/thread/__lock.c
index 557c6a6..21c85fc 100644 (file)
--- a/src/thread/__lock.c
+++ b/src/thread/__lock.c
@@ -1,12 +1,11 @@
-#define SYSCALL_RETURN_ERRNO
 #include "pthread_impl.h"
 
 void __lock(volatile int *l)
 {
-       int spins=100000;
+       int spins=10000;
        /* Do not use futexes because we insist that unlocking is a simple
         * assignment to optimize non-pathological code with no contention. */
        while (a_xchg(l, 1))
                if (spins) spins--, a_spin();
-               else syscall0(__NR_sched_yield);
+               else __syscall(SYS_sched_yield);
 }