dm snapshot: fix hung bios when copy error occurs

[pandora-kernel.git] / drivers / md / dm-snap-persistent.c

diff --git a/drivers/md/dm-snap-persistent.c b/drivers/md/dm-snap-persistent.c
index 75c182b..6215f34 100644 (file)
--- a/drivers/md/dm-snap-persistent.c
+++ b/drivers/md/dm-snap-persistent.c
@@ -646,7 +646,7 @@ static int persistent_prepare_exception(struct dm_exception_store *store,
 }
 
 static void persistent_commit_exception(struct dm_exception_store *store,
-                                       struct dm_exception *e,
+                                       struct dm_exception *e, int valid,
                                        void (*callback) (void *, int success),
                                        void *callback_context)
 {
@@ -655,6 +655,9 @@ static void persistent_commit_exception(struct dm_exception_store *store,
        struct core_exception ce;
        struct commit_callback *cb;
 
+       if (!valid)
+               ps->valid = 0;
+
        ce.old_chunk = e->old_chunk;
        ce.new_chunk = e->new_chunk;
        write_exception(ps, ps->current_committed++, &ce);