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[Qemu-block] [PATCH v11 0/2] mirror: Improve zero write and discard

From: Fam Zheng
Subject: [Qemu-block] [PATCH v11 0/2] mirror: Improve zero write and discard
Date: Wed, 3 Feb 2016 09:52:19 +0800

v11: Rebase. The only difference is the "file" parameter of

Patch 1 rewrites mirror_iteration. Patch 2 is a small DRY cleaning up.

The main benefit is copying unallocated sectors (both zeroed and discarded)
doesn't go through the iov setup loop, as they don't need it.

Fam Zheng (2):
  mirror: Rewrite mirror_iteration
  mirror: Add mirror_wait_for_io

 block/mirror.c             | 353 +++++++++++++++++++++++++++------------------
 tests/qemu-iotests/109.out |  80 +++++-----
 trace-events               |   1 -
 3 files changed, 252 insertions(+), 182 deletions(-)


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