ck_backoff: avoid dead store to ceiling

We only need to store the update value in our in-out parameter.
5 years ago · 91343eaa2c
parent 94f3712814
commit 91343eaa2c
1 changed files with 1 additions and 1 deletions
--- a/include/ck_backoff.h
+++ b/include/ck_backoff.h
@ -50,7 +50,7 @@ ck_backoff_eb(unsigned int *c)
 	for (i = 0; i < ceiling; i++)
 		ck_pr_barrier();
-	*c = ceiling <<= ceiling < CK_BACKOFF_CEILING;
+	*c = ceiling << (ceiling < CK_BACKOFF_CEILING);
 	return;
 }