diff options
| author | Kevin Wolf <kwolf@redhat.com> | 2010-10-28 16:16:00 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2010-11-04 13:54:37 +0100 |
| commit | 1c02e2a17104fe7fc11893125864dc0daf1e6d5b (patch) | |
| tree | 856838c21e8b45c9305b642d7b6e9339bc634600 | |
| parent | 4a4111851fa75bc91028a26eb75dcdd136d9032d (diff) | |
qcow2: Invalidate cache after failed read
The cache content may be destroyed after a failed read, better not use it any
more.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
| -rw-r--r-- | block/qcow2-cluster.c | 1 | ||||
| -rw-r--r-- | block/qcow2-refcount.c | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/block/qcow2-cluster.c b/block/qcow2-cluster.c index 4f7dc59b76..b0402087cf 100644 --- a/block/qcow2-cluster.c +++ b/block/qcow2-cluster.c @@ -188,6 +188,7 @@ static int l2_load(BlockDriverState *bs, uint64_t l2_offset, ret = bdrv_pread(bs->file, l2_offset, *l2_table, s->l2_size * sizeof(uint64_t)); if (ret < 0) { + qcow2_l2_cache_reset(bs); return ret; } diff --git a/block/qcow2-refcount.c b/block/qcow2-refcount.c index 0efb6760cb..a10453c875 100644 --- a/block/qcow2-refcount.c +++ b/block/qcow2-refcount.c @@ -103,6 +103,7 @@ static int load_refcount_block(BlockDriverState *bs, ret = bdrv_pread(bs->file, refcount_block_offset, s->refcount_block_cache, s->cluster_size); if (ret < 0) { + s->refcount_block_cache_offset = 0; return ret; } |