diff options
| author | Stefan Hajnoczi <stefanha@redhat.com> | 2018-02-16 16:50:13 +0000 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2018-03-02 18:39:07 +0100 |
| commit | 33f2a7577787910bda161f428c904ac6a14b2454 (patch) | |
| tree | db049b4cacc288b6f3c5b7314baac4ea0ab25ffe /tests | |
| parent | 7719f3c968c59e1bcda7e177679dc765b59e578f (diff) | |
| download | qemu-33f2a7577787910bda161f428c904ac6a14b2454.zip qemu-33f2a7577787910bda161f428c904ac6a14b2454.tar.gz qemu-33f2a7577787910bda161f428c904ac6a14b2454.tar.bz2 | |
block: add BlockBackend->in_flight counter
BlockBackend currently relies on BlockDriverState->in_flight to track
requests for blk_drain(). There is a corner case where
BlockDriverState->in_flight cannot be used though: blk->root can be NULL
when there is no medium. This results in a segfault when the NULL
pointer is dereferenced.
Introduce a BlockBackend->in_flight counter for aio requests so it works
even when blk->root == NULL.
Based on a patch by Kevin Wolf <kwolf@redhat.com>.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'tests')
0 files changed, 0 insertions, 0 deletions