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List: qemu-block
Subject: [Qemu-block] [PATCH 0/3] block/stream: get rid of the base
From: Andrey Shinkevich <andrey.shinkevich () virtuozzo ! com>
Date: 2019-03-29 13:29:11
Message-ID: 1553866154-257311-1-git-send-email-andrey.shinkevich () virtuozzo ! com
[Download RAW message or body]
This series introduces a bottom intermediate node that eliminates the
dependency on the base that may change while stream job is running.
It happens when stream/commit parallel jobs are running on the same
backing chain. The base node of the stream job may be a top node of
the parallel commit job and can change before the stream job is
completed. We avoid that dependency by introducing the bottom node.
Discussed in the e-mail thread with the message ID
<1550762799-830661-1-git-send-email-andrey.shinkevich@virtuozzo.com>
Andrey Shinkevich (3):
block: include base when checking image chain for block allocation
block/stream: refactor stream_run: drop goto
block/stream: introduce a bottom node
block/io.c | 39 +++++++++++++++++++++++----
block/stream.c | 69 +++++++++++++++++++++++------------------------
block/trace-events | 2 +-
blockdev.c | 10 ++++++-
include/block/block.h | 5 +++-
include/block/block_int.h | 6 ++---
tests/qemu-iotests/245 | 4 +--
7 files changed, 87 insertions(+), 48 deletions(-)
--
1.8.3.1
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