- patches.suse/slab-handle-memoryless-nodes-v2a.patch: Refresh.

[linux-flexiantxendom0-3.2.10.git] / fs / hpfs / super.c

diff --git a/fs/hpfs/super.c b/fs/hpfs/super.c
index f2feaa0..cadc4ce 100644 (file)
--- a/fs/hpfs/super.c
+++ b/fs/hpfs/super.c
@@ -14,6 +14,7 @@
 #include <linux/magic.h>
 #include <linux/sched.h>
 #include <linux/smp_lock.h>
+#include <linux/bitmap.h>
 
 /* Mark the filesystem dirty, so that chkdsk checks it when os/2 booted */
 
@@ -115,15 +116,13 @@ static void hpfs_put_super(struct super_block *s)
 unsigned hpfs_count_one_bitmap(struct super_block *s, secno secno)
 {
        struct quad_buffer_head qbh;
-       unsigned *bits;
-       unsigned i, count;
-       if (!(bits = hpfs_map_4sectors(s, secno, &qbh, 4))) return 0;
-       count = 0;
-       for (i = 0; i < 2048 / sizeof(unsigned); i++) {
-               unsigned b; 
-               if (!bits[i]) continue;
-               for (b = bits[i]; b; b>>=1) count += b & 1;
-       }
+       unsigned long *bits;
+       unsigned count;
+
+       bits = hpfs_map_4sectors(s, secno, &qbh, 4);
+       if (!bits)
+               return 0;
+       count = bitmap_weight(bits, 2048 * BITS_PER_BYTE);
        hpfs_brelse4(&qbh);
        return count;
 }