smalloc: use optimized ffz()

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

diff --git a/smalloc.c b/smalloc.c
index 6cbf59cf320a0eb0fcf1bf9166f6b581bfe0c983..0a86c43b0f17d58a5aa69587f92eff1d4f39c279 100644 (file)
--- a/smalloc.c
+++ b/smalloc.c
@@ -12,7 +12,7 @@
 #include <limits.h>
 
 #include "mutex.h"
-#include "lib/ffz.h"
+#include "arch/arch.h"
 
 #define MP_SAFE                        /* define to make thread safe */
 #define SMALLOC_REDZONE                /* define to detect memory corruption */
@@ -178,7 +178,7 @@ static int find_next_zero(int word, int start)
 {
        assert(word != -1U);
        word >>= (start + 1);
-       return __ffs(~word) + start + 1;
+       return ffz(word) + start + 1;
 }
 
 static int add_pool(struct pool *pool, unsigned int alloc_size)