this series migrates the qemu rbd driver from the old aio emulation
to native coroutines and adds write zeroes support which is important
for block operations.
To achive this we first bump the librbd requirement to the already
outdated luminous release of ceph to get rid of some wrappers and
ifdef'ry in the code.
V2->V3:
- this patch is now rebased on top of current master
- Patch 1: only use cc.links and not cc.run to not break
cross-compiling. [Kevin]
Since Qemu 6.1 its okay to rely on librbd >= 12.x since RHEL-7
support was dropped [Daniel]
- Patch 4: dropped
- Patch 5: store BDS in RBDTask and use bdrv_get_aio_context() [Kevin]
V1->V2:
- this patch is now rebased on top of current master with Paolos
upcoming fixes for the meson.build script included:
- meson: accept either shared or static libraries if --disable-static
- meson: honor --enable-rbd if cc.links test fails
- Patch 1: adjusted to meson.build script
- Patch 2: unchanged
- Patch 3: new patch
- Patch 4: do not implement empty detach_aio_context callback [Jason]
- Patch 5: - fix aio completion cleanup in error case [Jason]
- return error codes from librbd
- Patch 6: - add support for thick provisioning [Jason]
- do not set write zeroes alignment
- Patch 7: new patch
Peter Lieven (6):
block/rbd: bump librbd requirement to luminous release
block/rbd: store object_size in BDRVRBDState
block/rbd: update s->image_size in qemu_rbd_getlength
block/rbd: migrate from aio to coroutines
block/rbd: add write zeroes support
block/rbd: drop qemu_rbd_refresh_limits
block/rbd.c | 408 ++++++++++++++++------------------------------------
meson.build | 7 +-
2 files changed, 128 insertions(+), 287 deletions(-)
--
2.17.1