diff options
Diffstat (limited to 'drivers/md/dm-log.c')
| -rw-r--r-- | drivers/md/dm-log.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/md/dm-log.c b/drivers/md/dm-log.c index 666a80e3602e..315e36a96b6f 100644 --- a/drivers/md/dm-log.c +++ b/drivers/md/dm-log.c @@ -677,13 +677,26 @@ static int core_flush(struct dm_dirty_log *log) static int disk_flush(struct dm_dirty_log *log) { - int r; - struct log_c *lc = (struct log_c *) log->context; + int r, i; + struct log_c *lc = log->context; /* only write if the log has changed */ if (!lc->touched_cleaned && !lc->touched_dirtied) return 0; + if (lc->touched_cleaned && log->flush_callback_fn && + log->flush_callback_fn(lc->ti)) { + /* + * At this point it is impossible to determine which + * regions are clean and which are dirty (without + * re-reading the log off disk). So mark all of them + * dirty. + */ + lc->flush_failed = 1; + for (i = 0; i < lc->region_count; i++) + log_clear_bit(lc, lc->clean_bits, i); + } + r = rw_header(lc, WRITE); if (r) fail_log_device(lc); |