diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/md/dm-snap.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c index eb7291a8420..462750c6631 100644 --- a/drivers/md/dm-snap.c +++ b/drivers/md/dm-snap.c @@ -1080,6 +1080,13 @@ static int snapshot_map(struct dm_target *ti, struct bio *bio, goto out_unlock; } + e = lookup_exception(&s->complete, chunk); + if (e) { + free_pending_exception(pe); + remap_exception(s, e, bio, chunk); + goto out_unlock; + } + pe = __find_pending_exception(s, pe, chunk); if (!pe) { __invalidate_snapshot(s, -ENOMEM); @@ -1226,6 +1233,12 @@ static int __origin_write(struct list_head *snapshots, struct bio *bio) goto next_snapshot; } + e = lookup_exception(&snap->complete, chunk); + if (e) { + free_pending_exception(pe); + goto next_snapshot; + } + pe = __find_pending_exception(snap, pe, chunk); if (!pe) { __invalidate_snapshot(snap, -ENOMEM); |