If writing the L1 table to disk failed, we need to restore its old content in
memory to avoid inconsistencies.
Reported-by: Juan Quintela <quint...@redhat.com>
Signed-off-by: Kevin Wolf <kw...@redhat.com>
---
block/qcow2-cluster.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/block/qcow2-cluster.c b/block/qcow2-cluster.c
index 03a9f25..5760ad6 100644
--- a/block/qcow2-cluster.c
+++ b/block/qcow2-cluster.c
@@ -285,6 +285,7 @@ static int l2_allocate(BlockDriverState *bs, int l1_index,
uint64_t **table)
return 0;
fail:
+ s->l1_table[l1_index] = old_l2_offset;
qcow2_l2_cache_reset(bs);
return ret;
}
--
1.6.6.1
