Recent changes in NBD protocol allowed to use some commands without max_block restriction. Let's drop the restrictions.
NBD change is here: https://github.com/NetworkBlockDevice/nbd/commit/9f30fedb8699f151e7ef4ccc07e624330be3316b#diff-762fb7c670348da69cc9050ef58fe3ae v4: fix auto_no_fallback variable usage in 04: - initialize it - unset it on error Hope, it will fix bug reported by patchew Vladimir Sementsov-Ogievskiy (4): block: add max_pwrite_zeroes_fast to BlockLimits block/nbd: define new max_write_zero_fast limit block/io: refactor bdrv_co_do_pwrite_zeroes head calculation block/io: auto-no-fallback for write-zeroes include/block/block_int.h | 8 ++++++++ block/io.c | 40 +++++++++++++++++++++++++++++++++------ block/nbd.c | 1 + 3 files changed, 43 insertions(+), 6 deletions(-) -- 2.21.0