diff options
| -rw-r--r-- | drivers/md/dm-log.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/md/dm-log.c b/drivers/md/dm-log.c index 33d80721667..ba98bf57c7c 100644 --- a/drivers/md/dm-log.c +++ b/drivers/md/dm-log.c @@ -447,7 +447,7 @@ static int disk_resume(struct dirty_log *log) if (r) return r; - /* set or clear any new bits */ + /* set or clear any new bits -- device has grown */ if (lc->sync == NOSYNC) for (i = lc->header.nr_regions; i < lc->region_count; i++) /* FIXME: amazingly inefficient */ @@ -457,6 +457,10 @@ static int disk_resume(struct dirty_log *log) /* FIXME: amazingly inefficient */ log_clear_bit(lc, lc->clean_bits, i); + /* clear any old bits -- device has shrunk */ + for (i = lc->region_count; i % (sizeof(*lc->clean_bits) << BYTE_SHIFT); i++) + log_clear_bit(lc, lc->clean_bits, i); + /* 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); |