On Fri, Jul 15, 2016 at 05:22:49PM -0600, Eric Blake wrote: > Allow NBD to pass a byte-aligned discard request over the wire. > > Prerequisite: Kevin's block branch merged with current qemu.git master, > plus my work on auto-fragmenting (v3 at the moment): > https://lists.gnu.org/archive/html/qemu-devel/2016-07/msg03550.html > > Also available as a tag at: > git fetch git://repo.or.cz/qemu/ericb.git nbd-discard-v2 > > This is a merge of two series both posted before soft freeze, both > of which had initial positive review with only a few changes needed: > byte-based block discard > https://lists.gnu.org/archive/html/qemu-devel/2016-06/msg06491.html > Switch raw NBD to byte-based > https://lists.gnu.org/archive/html/qemu-devel/2016-06/msg07030.html > > I'd still hoping for one other series to make it into 2.7, based > on being posted prior to soft freeze: > nbd: efficient write zeroes > https://lists.gnu.org/archive/html/qemu-devel/2016-06/msg07463.html > > Changes since v1: > - rebase to latest master (several contextual conflicts) > - fix bug with aio_pdiscard using a stack variable qiov after > its scope ends > - tweak raw_bsd to remain sector-based if probing occurred > > 001/19:[----] [--] 'block: Convert bdrv_co_discard() to byte-based' > 002/19:[0004] [FC] 'block: Convert bdrv_discard() to byte-based' > 003/19:[0034] [FC] 'block: Switch BlockRequest to byte-based' > 004/19:[0008] [FC] 'block: Convert bdrv_aio_discard() to byte-based' > 005/19:[----] [--] 'block: Convert BB interface to byte-based discards' > 006/19:[----] [--] 'raw-posix: Switch paio_submit() to byte-based' > 007/19:[----] [--] 'rbd: Switch rbd_start_aio() to byte-based' > 008/19:[----] [--] 'block: Convert .bdrv_aio_discard() to byte-based' > 009/19:[----] [--] 'block: Add .bdrv_co_pdiscard() driver callback' > 010/19:[----] [-C] 'blkreplay: Switch .bdrv_co_discard() to byte-based' > 011/19:[----] [--] 'gluster: Switch .bdrv_co_discard() to byte-based' > 012/19:[----] [--] 'iscsi: Switch .bdrv_co_discard() to byte-based' > 013/19:[----] [--] 'nbd: Switch .bdrv_co_discard() to byte-based' > 014/19:[----] [--] 'qcow2: Switch .bdrv_co_discard() to byte-based' > 015/19:[----] [-C] 'raw_bsd: Switch .bdrv_co_discard() to byte-based' > 016/19:[----] [--] 'sheepdog: Switch .bdrv_co_discard() to byte-based' > 017/19:[----] [--] 'block: Kill .bdrv_co_discard()' > 018/19:[----] [--] 'nbd: Convert to byte-based interface' > 019/19:[0028] [FC] 'raw_bsd: Convert to byte-based interface' > > Eric Blake (19): > block: Convert bdrv_co_discard() to byte-based > block: Convert bdrv_discard() to byte-based > block: Switch BlockRequest to byte-based > block: Convert bdrv_aio_discard() to byte-based > block: Convert BB interface to byte-based discards > raw-posix: Switch paio_submit() to byte-based > rbd: Switch rbd_start_aio() to byte-based > block: Convert .bdrv_aio_discard() to byte-based > block: Add .bdrv_co_pdiscard() driver callback > blkreplay: Switch .bdrv_co_discard() to byte-based > gluster: Switch .bdrv_co_discard() to byte-based > iscsi: Switch .bdrv_co_discard() to byte-based > nbd: Switch .bdrv_co_discard() to byte-based > qcow2: Switch .bdrv_co_discard() to byte-based > raw_bsd: Switch .bdrv_co_discard() to byte-based > sheepdog: Switch .bdrv_co_discard() to byte-based > block: Kill .bdrv_co_discard() > nbd: Convert to byte-based interface > raw_bsd: Convert to byte-based interface > > block/nbd-client.h | 11 ++- > include/block/block.h | 10 +-- > include/block/block_int.h | 8 +-- > include/block/nbd.h | 1 - > include/sysemu/block-backend.h | 9 ++- > block/blkreplay.c | 8 +-- > block/block-backend.c | 22 +++--- > block/gluster.c | 14 ++-- > block/io.c | 154 > ++++++++++++++++++++--------------------- > block/iscsi.c | 18 +++-- > block/mirror.c | 5 +- > block/nbd-client.c | 41 ++++++----- > block/nbd.c | 24 +++---- > block/qcow2-refcount.c | 4 +- > block/qcow2.c | 10 +-- > block/raw-posix.c | 24 +++---- > block/raw-win32.c | 19 ++--- > block/raw_bsd.c | 53 ++++++++------ > block/rbd.c | 29 ++++---- > block/sheepdog.c | 17 +++-- > hw/block/xen_disk.c | 7 +- > hw/ide/core.c | 6 +- > hw/scsi/scsi-disk.c | 8 +-- > nbd/server.c | 19 ++--- > qemu-io-cmds.c | 3 +- > block/trace-events | 4 +- > 26 files changed, 260 insertions(+), 268 deletions(-) > > -- > 2.5.5 > >
Thanks, applied to my block tree: https://github.com/stefanha/qemu/commits/block Stefan
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