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| author | Fam Zheng | 2017-04-05 08:44:24 +0200 |
|---|---|---|
| committer | Fam Zheng | 2017-04-11 14:07:15 +0200 |
| commit | aabf591007a83dc6520329bce929570115849286 (patch) | |
| tree | f951eea607ecebecae95238d0f9e347d01cea572 /include/exec | |
| parent | block: Make bdrv_parent_drained_begin/end public (diff) | |
| download | qemu-aabf591007a83dc6520329bce929570115849286.tar.gz qemu-aabf591007a83dc6520329bce929570115849286.tar.xz qemu-aabf591007a83dc6520329bce929570115849286.zip | |
block: Quiesce old aio context during bdrv_set_aio_context
The fact that the bs->aio_context is changing can confuse the dataplane
iothread, because of the now fine granularity aio context lock.
bdrv_drain should rather be a bdrv_drained_begin/end pair, but since
bs->aio_context is changing, we can just use aio_disable_external and
bdrv_parent_drained_begin.
Reported-by: Ed Swierk <eswierk@skyportsystems.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'include/exec')
0 files changed, 0 insertions, 0 deletions