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From 47c794c7f8010caf97447badfb059fc8fd6aa89f Mon Sep 17 00:00:00 2001
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From: Fam Zheng <famz@redhat.com>
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Date: Thu, 30 Nov 2017 09:25:43 +0100
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Subject: [PATCH 06/36] qemu-options: Mention locking option of file driver
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RH-Author: Fam Zheng <famz@redhat.com>
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Message-id: <20171130092544.19231-5-famz@redhat.com>
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Patchwork-id: 78018
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O-Subject: [RHV7.5 qemu-kvm-ma PATCH 4/5] qemu-options: Mention locking option of file driver
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Bugzilla: 1494210
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RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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RH-Acked-by: Jeffrey Cody <jcody@redhat.com>
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RH-Acked-by: John Snow <jsnow@redhat.com>
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Signed-off-by: Fam Zheng <famz@redhat.com>
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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(cherry picked from commit 1878eaff9bdeece4546d4f9587e6c75ab0b79b8b)
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Signed-off-by: Fam Zheng <famz@redhat.com>
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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qemu-options.hx | 4 ++++
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1 file changed, 4 insertions(+)
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diff --git a/qemu-options.hx b/qemu-options.hx
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index 50ba50e..5878359 100644
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--- a/qemu-options.hx
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+++ b/qemu-options.hx
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@@ -693,6 +693,10 @@ This is the protocol-level block driver for accessing regular files.
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The path to the image file in the local filesystem
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@item aio
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Specifies the AIO backend (threads/native, default: threads)
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+@item locking
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+Specifies whether the image file is protected with Linux OFD / POSIX locks. The
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+default is to use the Linux Open File Descriptor API if available, otherwise no
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+lock is applied. (auto/on/off, default: auto)
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@end table
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Example:
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@example
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--
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1.8.3.1
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