diff options
Diffstat (limited to 'fs/ext3/bitmap.c')
| -rw-r--r-- | fs/ext3/bitmap.c | 18 |
1 files changed, 6 insertions, 12 deletions
diff --git a/fs/ext3/bitmap.c b/fs/ext3/bitmap.c index 5b4ba3e246e..ef9c643e8e9 100644 --- a/fs/ext3/bitmap.c +++ b/fs/ext3/bitmap.c @@ -7,20 +7,14 @@ * Universite Pierre et Marie Curie (Paris VI) */ -#include <linux/buffer_head.h> -#include "bitmap.h" +#include "ext3.h" -static int nibblemap[] = {4, 3, 3, 2, 3, 2, 2, 1, 3, 2, 2, 1, 2, 1, 1, 0}; +#ifdef EXT3FS_DEBUG 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 */ + |