X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=fs%2Fext3%2Fbitmap.c;h=ef9c643e8e9d5ff75703227ec9f81f0684340246;hb=e97a72ece87ace539de7da25fa5d3327e728042b;hp=909d13e265603dd24e3e1c2d143e87f7beda4202;hpb=94fb175c0414902ad9dbd956addf3a5feafbc85b;p=karo-tx-linux.git

diff --git a/fs/ext3/bitmap.c b/fs/ext3/bitmap.c
index 909d13e26560..ef9c643e8e9d 100644
--- a/fs/ext3/bitmap.c
+++ b/fs/ext3/bitmap.c
@@ -11,19 +11,9 @@
 
 #ifdef EXT3FS_DEBUG
 
-static const int nibblemap[] = {4, 3, 3, 2, 3, 2, 2, 1, 3, 2, 2, 1, 2, 1, 1, 0};
-
 unsigned long ext3_count_free (struct buffer_head * map, unsigned int numchars)
 {
-	unsigned int i;
-	unsigned long sum = 0;
-
-	if (!map)
-		return (0);
-	for (i = 0; i < numchars; i++)
-		sum += nibblemap[map->b_data[i] & 0xf] +
-			nibblemap[(map->b_data[i] >> 4) & 0xf];
-	return (sum);
+	return numchars * BITS_PER_BYTE - memweight(map->b_data, numchars);
 }
 
 #endif  /*  EXT3FS_DEBUG  */