Here is v2 of the nbd improvements series. It is based on Kevin's
block branch, currently at 2168851.
Compared to v1, I reordered the patches in more logical blocks.
Patches 1-4 touch sheepdog, patches 5-8 (including Stefan bdrv_flush
patch, rebased) touch the generic block layer, patches 9-15 touch NBD.
I also implemented multiple in-flight requests for the NBD client. The
server is still serial, so there's not much benefit, but I checked that
all code paths are hit. The changes are easy and actually cleanup the
code compared to v1. However, it requires making discard asynchronous,
because the client has to cope with getting other replies before the
one for discard. This is patch 8.
I didn't include the two patches already in the block branch.
v1->v2:
moved coroutine send/recv functions out of qemu-coroutine.c
block: added support for co_discard and aio_discard
nbd: added support for multiple in-flight requests
Paolo Bonzini (14):
sheepdog: add coroutine_fn markers
add socket_set_block
sheepdog: move coroutine send/recv function to generic code
coroutine-io: handle zero returns from recv
block: group together the plugging of synchronous IO emulation
block: add bdrv_co_flush support
block: add bdrv_co_discard and bdrv_aio_discard support
nbd: fix error handling in the server
nbd: add support for NBD_CMD_FLUSH
nbd: add support for NBD_CMD_FLAG_FUA
nbd: add support for NBD_CMD_TRIM
nbd: switch to asynchronous operation
nbd: split requests
nbd: allow multiple in-flight requests
Stefan Hajnoczi (1):
block: emulate .bdrv_flush() using .bdrv_aio_flush()
block.c | 228 +++++++++++++++++++++++++++++++++++++----
block.h | 3 +
block/blkdebug.c | 6 -
block/blkverify.c | 9 --
block/nbd.c | 292 ++++++++++++++++++++++++++++++++++++++++++++++-------
block/qcow.c | 6 -
block/qcow2.c | 19 ----
block/qed.c | 6 -
block/raw-posix.c | 18 ----
block/sheepdog.c | 239 ++++++--------------------------------------
block_int.h | 10 ++-
cutils.c | 183 +++++++++++++++++++++++++++++++++
nbd.c | 66 ++++++++++--
oslib-posix.c | 7 ++
oslib-win32.c | 6 +
qemu-common.h | 30 ++++++
qemu_socket.h | 1 +
trace-events | 1 +
18 files changed, 786 insertions(+), 344 deletions(-)
--
1.7.6
