> The upstream NBD protocol is proposing an extension for efficient > write zeroes; having a qemu implementation will be one of the reasons > to promote the proposal from experimental to standard: > https://github.com/yoe/nbd/blob/extension-write-zeroes/doc/proto.md > > v4 was here: > https://lists.gnu.org/archive/html/qemu-devel/2016-06/msg07463.html > > Prerequisites: > v3 Auto-fragment large transactions at the block layer: > https://lists.gnu.org/archive/html/qemu-devel/2016-07/msg03550.html > v2 byte-based block discard: > https://lists.gnu.org/archive/html/qemu-devel/2016-07/msg03592.html > > Also available as a tag at: > git fetch git://repo.or.cz/qemu/ericb.git nbd-zero-v5 > > changes since v4: > - patch 2 - Rebase to latest > - patch 6, 10 - Address review comments [Paolo] > - patch 14 - Update commit message to address review comments [Paolo]
I'm sorry, it's too late for 2.7 now. Paolo
