This patch series renames bdrv_co_drain to bdrv_co_drain_begin and adds a new bdrv_co_drain_end callback to match bdrv_drained_begin/end and drained_begin/end of BdrvChild. This is needed because the throttle driver (block/throttle.c) needs a way to mark the end of the drain in order to toggle io_limits_disabled correctly.
Based-on: <20170918202529.28379-1-el13...@mail.ntua.gr> "block/throttle-groups.c: allocate RestartData on the heap" Which fixes a coroutine crash in block/throttle-groups.c v2: add doc for callbacks and change order of request polling for completion [Stefan] Manos Pitsidianakis (3): block: add bdrv_co_drain_end callback block: rename bdrv_co_drain to bdrv_co_drain_begin block/throttle.c: add bdrv_co_drain_begin/end callbacks include/block/block_int.h | 8 +++++++- block/io.c | 48 +++++++++++++++++++++++++++++++++-------------- block/qed.c | 6 +++--- block/throttle.c | 18 ++++++++++++++++++ 4 files changed, 62 insertions(+), 18 deletions(-) -- 2.11.0