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[Qemu-block] [PATCH 0/4] active-mirror: support unaligned guest operatio
From: |
Vladimir Sementsov-Ogievskiy |
Subject: |
[Qemu-block] [PATCH 0/4] active-mirror: support unaligned guest operations |
Date: |
Thu, 12 Sep 2019 18:13:34 +0300 |
Commit 9adc1cb49af8d fixed a bug about unaligned (to dirty bitmap
granularity) guest writes (and discards) by simply requesting
corresponding alignment on mirror-top filter. However forcing large
alignment obviously decreases performance of unaligned requests.
So it's time for a new solution which is in 03. And 04 reverts
9adc1cb49af8d.
Vladimir Sementsov-Ogievskiy (4):
block/mirror: simplify do_sync_target_write
block/block-backend: add blk_co_pwritev_part
block/mirror: support unaligned write in active mirror
Revert "mirror: Only mirror granularity-aligned chunks"
include/sysemu/block-backend.h | 4 +
block/block-backend.c | 17 +++-
block/mirror.c | 153 +++++++++++++--------------------
3 files changed, 78 insertions(+), 96 deletions(-)
--
2.21.0
- [Qemu-block] [PATCH 0/4] active-mirror: support unaligned guest operations,
Vladimir Sementsov-Ogievskiy <=