ck_pflock: Migrate to acquire / release.

11 years ago · 0c205740aa
parent ad5e00cfb9
commit 0c205740aa
1 changed files with 3 additions and 3 deletions
--- a/include/ck_pflock.h
+++ b/include/ck_pflock.h
@ -70,7 +70,7 @@ CK_CC_INLINE static void
 ck_pflock_write_unlock(ck_pflock_t *pf)
 {

-	ck_pr_fence_memory();
+	ck_pr_fence_release();

 	/* Migrate from write phase to read phase. */
 	ck_pr_and_32(&pf->rin, CK_PFLOCK_LSB);
@ -102,7 +102,7 @@ ck_pflock_write_lock(ck_pflock_t *pf)
 	while (ck_pr_load_32(&pf->rout) != ticket)
 		ck_pr_stall();

-	ck_pr_fence_memory();
+	ck_pr_fence_acquire();
 	return;
 }

@ -133,7 +133,7 @@ ck_pflock_read_lock(ck_pflock_t *pf)
 		ck_pr_stall();

 leave:
-	/* Acquire semantics. */
+	/* Acquire semantics with respect to readers. */
 	ck_pr_fence_load();
 	return;
 }