ck_bytelock: read_lock must serialize all load/store before checking owner field.

Thanks to Andrew Schorr for reporting the unit test failure.
12 years ago · fbb88a519c
parent 3afa6b2b39
commit fbb88a519c
1 changed files with 1 additions and 1 deletions
--- a/include/ck_bytelock.h
+++ b/include/ck_bytelock.h
@ -148,7 +148,7 @@ ck_bytelock_read_lock(struct ck_bytelock *bytelock, unsigned int slot)
 	slot -= 1;
 	for (;;) {
 		ck_pr_store_8(&bytelock->readers[slot], true);
-		ck_pr_fence_strict_store();
+		ck_pr_fence_strict_memory();

 		/*
 		 * If there is no owner at this point, our slot has