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authorKevin Wolf <kwolf@redhat.com>2015-12-22 16:10:32 +0100
committerKevin Wolf <kwolf@redhat.com>2016-01-20 13:36:23 +0100
commit140fd5a69cf19460b8daa8a9bb83bd869f6db14d (patch)
treeaa72e90f53710d4164d9d273a7935613872e6763
parentec6d891224f708b2cda2a1edf68ffc0ff1316fca (diff)
qcow2: Fix BDRV_O_INACTIVE handling in qcow2_invalidate_cache()
What qcow2_invalidate_cache() should do is close the image with BDRV_O_INACTIVE set and reopen it with the flag cleared. In fact, it used to do exactly the opposite: qcow2_close() relied on bs->open_flags, which is already updated to have cleared BDRV_O_INACTIVE at this point, whereas qcow2_open() was called with s->flags, which has the flag still set. Fix this. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
-rw-r--r--block/qcow2.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/block/qcow2.c b/block/qcow2.c
index bfc80ea2ff..0f8c485c2c 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -1719,7 +1719,7 @@ static void qcow2_close(BlockDriverState *bs)
/* else pre-write overlap checks in cache_destroy may crash */
s->l1_table = NULL;
- if (!(bs->open_flags & BDRV_O_INACTIVE)) {
+ if (!(s->flags & BDRV_O_INACTIVE)) {
qcow2_inactivate(bs);
}
@@ -1770,6 +1770,7 @@ static void qcow2_invalidate_cache(BlockDriverState *bs, Error **errp)
memset(s, 0, sizeof(BDRVQcow2State));
options = qdict_clone_shallow(bs->options);
+ flags &= ~BDRV_O_INACTIVE;
ret = qcow2_open(bs, options, flags, &local_err);
QDECREF(options);
if (local_err) {