| commit | fe5258a503a87e69be37c9ac48799e293809386e | |
| author | Kevin Wolf <kwolf@redhat.com> | |
| Thu, 6 Sep 2018 15:43:49 +0000 (6 17:43 +0200) | ||
| committer | Kevin Wolf <kwolf@redhat.com> | |
| Tue, 25 Sep 2018 13:50:15 +0000 (25 15:50 +0200) | ||
| tree | f1e8d9d5a1951f345ddf8b8c1df663ea7d93b41e | treesnapshot (tar.gz zip) |
| parent | aa1361d54aac43094b98024b8b6c804eb6e41661 | commitdiff |
block-backend: Add .drained_poll callback
A bdrv_drain operation must ensure that all parents are quiesced, this
includes BlockBackends. Otherwise, callbacks called by requests that are
completed on the BDS layer, but not quite yet on the BlockBackend layer
could still create new requests.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
A bdrv_drain operation must ensure that all parents are quiesced, this
includes BlockBackends. Otherwise, callbacks called by requests that are
completed on the BDS layer, but not quite yet on the BlockBackend layer
could still create new requests.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
| block/block-backend.c | diffblobblamehistory |