X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=lib%2Fffz.h;h=eef612d1a136106feacc4d65939da21f3fcefa26;hb=02975b649c986efbafdb76b3ddff998634610e3f;hp=7fc7d4567ef155035527e9bc5c5751feafd5d9d9;hpb=064c636d364fab601a908e040d3aa5eaf2775694;p=fio.git

diff --git a/lib/ffz.h b/lib/ffz.h
index 7fc7d456..eef612d1 100644
--- a/lib/ffz.h
+++ b/lib/ffz.h
@@ -1,10 +1,16 @@
 #ifndef FIO_FFZ_H
 #define FIO_FFZ_H
 
-static inline int __ffs(int word)
+static inline int __ffs(unsigned long word)
 {
 	int r = 0;
 
+#if BITS_PER_LONG == 64
+	if ((word & 0xffffffff) == 0) {
+		r += 32;
+		word >>= 32;
+	}
+#endif
 	if (!(word & 0xffff)) {
 		word >>= 16;
 		r += 16;
@@ -29,9 +35,9 @@ static inline int __ffs(int word)
 	return r;
 }
 
-static inline int ffz(unsigned int bitmask)
+static inline int ffz(unsigned long bitmask)
 {
-	return ffs(~bitmask);
+	return __ffs(~bitmask);
 }
 
 #endif