linuxrwlocksyield: refactor

diff --git a/test/linuxrwlocksyield.c b/test/linuxrwlocksyield.c
index 9a676b0868a715b65c6828cf097ac6432f25f7c5..be3550e11e3c8f8740b4c1a47458180f57994a3a 100644 (file)
--- a/test/linuxrwlocksyield.c
+++ b/test/linuxrwlocksyield.c
@@ -29,12 +29,9 @@ static inline void read_lock(rwlock_t *rw)
        int priorvalue = atomic_fetch_sub_explicit(&rw->lock, 1, memory_order_acquire);
        while (priorvalue <= 0) {
                atomic_fetch_add_explicit(&rw->lock, 1, memory_order_relaxed);
-               do {
-                       priorvalue = atomic_load_explicit(&rw->lock, memory_order_relaxed);
-                       if (priorvalue > 0)
-                               break;
+               while (atomic_load_explicit(&rw->lock, memory_order_relaxed) <= 0) {
                        thrd_yield();
-               } while (true);
+               }
                priorvalue = atomic_fetch_sub_explicit(&rw->lock, 1, memory_order_acquire);
        }
 }
@@ -44,12 +41,9 @@ static inline void write_lock(rwlock_t *rw)
        int priorvalue = atomic_fetch_sub_explicit(&rw->lock, RW_LOCK_BIAS, memory_order_acquire);
        while (priorvalue != RW_LOCK_BIAS) {
                atomic_fetch_add_explicit(&rw->lock, RW_LOCK_BIAS, memory_order_relaxed);
-               do {
-                       priorvalue = atomic_load_explicit(&rw->lock, memory_order_relaxed);
-                       if (priorvalue == RW_LOCK_BIAS)
-                               break;
+               while (atomic_load_explicit(&rw->lock, memory_order_relaxed) != RW_LOCK_BIAS) {
                        thrd_yield();
-               } while (true);
+               }
                priorvalue = atomic_fetch_sub_explicit(&rw->lock, RW_LOCK_BIAS, memory_order_acquire);
        }
 }