diff options
Diffstat (limited to 'volumes.c')
| -rw-r--r-- | volumes.c | 11 |
1 files changed, 8 insertions, 3 deletions
@@ -2154,9 +2154,14 @@ int write_raid56_with_parity(struct btrfs_fs_info *info, ebs[multi->num_stripes - 1] = p_eb; memcpy(p_eb->data, ebs[0]->data, stripe_len); for (j = 1; j < multi->num_stripes - 1; j++) { - for (i = 0; i < stripe_len; i += sizeof(unsigned long)) { - *(unsigned long *)(p_eb->data + i) ^= - *(unsigned long *)(ebs[j]->data + i); + for (i = 0; i < stripe_len; i += sizeof(u64)) { + u64 p_eb_data; + u64 ebs_data; + + p_eb_data = get_unaligned_64(p_eb->data + i); + ebs_data = get_unaligned_64(ebs[j]->data + i); + p_eb_data ^= ebs_data; + put_unaligned_64(p_eb_data, p_eb->data + i); } } } |