From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
To: qemu-block@nongnu.org
Cc: kwolf@redhat.com, fam@euphon.net, vsementsov@virtuozzo.com,
qemu-devel@nongnu.org, mreitz@redhat.com, stefanha@redhat.com,
den@openvz.org
Subject: [PATCH v2 0/6] nbd: reduce max_block restrictions
Date: Wed, 1 Apr 2020 18:01:06 +0300 [thread overview]
Message-ID: <20200401150112.9557-1-vsementsov@virtuozzo.com> (raw)
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
v2:
01: add Eric's r-b
02: keep INT_MAX limit for discard
03: s/max_pwrite_zeroes_no_fallback/max_pwrite_zeroes_fast/
(a bit shorter, so that if condition fit in one line)
default is changed to be max_pwrite_zeroes,
so blkdebug is unchanged and we need one more patch: 04
refactor max_write_zeroes calculation in bdrv_co_do_pwrite_zeroes,
prepare to last patch
04: new, actual change for nbd driver
05: reword commit message (fix -> refactoring) as I don't see bugs here. Keep an r-b
06: rewording, grammar [Eric]
rebase on 03 changes
Vladimir Sementsov-Ogievskiy (6):
block/nbd-client: drop max_block restriction from block_status
block/nbd-client: drop max_block restriction from discard
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 | 39 +++++++++++++++++++++++++++++++++------
block/nbd.c | 7 +++----
3 files changed, 44 insertions(+), 10 deletions(-)
--
2.21.0
next reply other threads:[~2020-04-01 15:03 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-01 15:01 Vladimir Sementsov-Ogievskiy [this message]
2020-04-01 15:01 ` [PATCH v2 1/6] block/nbd-client: drop max_block restriction from block_status Vladimir Sementsov-Ogievskiy
2020-04-01 15:01 ` [PATCH v2 2/6] block/nbd-client: drop max_block restriction from discard Vladimir Sementsov-Ogievskiy
2020-04-21 21:56 ` Eric Blake
2020-05-04 19:59 ` Eric Blake
2020-05-06 6:08 ` Vladimir Sementsov-Ogievskiy
2020-04-01 15:01 ` [PATCH v2 3/6] block: add max_pwrite_zeroes_fast to BlockLimits Vladimir Sementsov-Ogievskiy
2020-04-01 15:01 ` [PATCH v2 4/6] block/nbd: define new max_write_zero_fast limit Vladimir Sementsov-Ogievskiy
2020-04-01 15:01 ` [PATCH v2 5/6] block/io: refactor bdrv_co_do_pwrite_zeroes head calculation Vladimir Sementsov-Ogievskiy
2020-04-01 15:01 ` [PATCH v2 6/6] block/io: auto-no-fallback for write-zeroes Vladimir Sementsov-Ogievskiy
2020-04-01 16:52 ` [PATCH v2 0/6] nbd: reduce max_block restrictions no-reply
2020-04-03 5:12 ` Vladimir Sementsov-Ogievskiy
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