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>
(cherry picked from commit 68dba0bf455e60061bb3c9c40ef0d82916372664)
---
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 b7a5b35..8c67e3c 100644
--- a/block/qcow2-cluster.c
+++ b/block/qcow2-cluster.c
@@ -266,6 +266,7 @@ static uint64_t *l2_allocate(BlockDriverState *bs, int
l1_index)
return l2_table;
fail:
+ s->l1_table[l1_index] = old_l2_offset;
qcow2_l2_cache_reset(bs);
return NULL;
}
--
1.7.1.1
