* [Qemu-devel] [PATCH] qcow2: Restore L1 entry on l2_allocate failure
@ 2010-06-07 14:46 Kevin Wolf
0 siblings, 0 replies; only message in thread
From: Kevin Wolf @ 2010-06-07 14:46 UTC (permalink / raw)
To: qemu-devel; +Cc: kwolf
If writing the L1 table to disk failed, we need to restore its old content in
memory to avoid inconsistencies.
Reported-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@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
^ permalink raw reply related [flat|nested] only message in thread
only message in thread, other threads:[~2010-06-07 14:46 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2010-06-07 14:46 [Qemu-devel] [PATCH] qcow2: Restore L1 entry on l2_allocate failure Kevin Wolf
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).