Merge tag 'parisc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6
[firefly-linux-kernel-4.4.55.git] / drivers / md / dm-log.c
index 65ebaebf502bdbc6e35f0cec1272589e2e5e000e..627d19186d5a1719f1780aaa21f7406edf6e99fd 100644 (file)
@@ -571,16 +571,6 @@ static void disk_dtr(struct dm_dirty_log *log)
        destroy_log_context(lc);
 }
 
-static int count_bits32(uint32_t *addr, unsigned size)
-{
-       int count = 0, i;
-
-       for (i = 0; i < size; i++) {
-               count += hweight32(*(addr+i));
-       }
-       return count;
-}
-
 static void fail_log_device(struct log_c *lc)
 {
        if (lc->log_dev_failed)
@@ -629,7 +619,8 @@ static int disk_resume(struct dm_dirty_log *log)
 
        /* copy clean across to sync */
        memcpy(lc->sync_bits, lc->clean_bits, size);
-       lc->sync_count = count_bits32(lc->clean_bits, lc->bitset_uint32_count);
+       lc->sync_count = memweight(lc->clean_bits,
+                               lc->bitset_uint32_count * sizeof(uint32_t));
        lc->sync_search = 0;
 
        /* set the correct number of regions in the header */