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From: Fam Zheng <famz@redhat.com>
Date: Tue, 24 Mar 2015 09:23:48 +0800
Message-Id: <1427160230-4489-1-git-send-email-famz@redhat.com>
Subject: [Qemu-devel] [PATCH v2 0/2] block: Fix unaligned zero write
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To: qemu-devel@nongnu.org
Cc: Kevin Wolf <kwolf@redhat.com>, pl@kamp.de, qemu-block@nongnu.org, Stefan Hajnoczi <stefanha@redhat.com>, qemu-stable@nongnu.org

This fixes a segfault when doing unaligned zero write to an image that is 4k
aligned.

v2: Don't drop the unset of UNMAP flag. [Stefan, Peter]

Reproducer:

    $ (echo "open -o file.align=4k blkdebug::img"; echo "write -z 512 1024") | qemu-io

Fam Zheng (2):
  block: Fix unaligned zero write
  qemu-iotests: Test unaligned 4k zero write

 block.c                    | 45 ++++++++++++++++++++++++++++++++++++++------
 tests/qemu-iotests/033     | 47 +++++++++++++++++++++++++++++-----------------
 tests/qemu-iotests/033.out | 26 +++++++++++++++++++++++++
 3 files changed, 95 insertions(+), 23 deletions(-)

-- 
1.9.3