From: Fam Zheng <famz@redhat.com>
Date: Fri, 24 Nov 2017 08:53:51 +0000 (+0800)
Subject: qemu-options: Mention locking option of file driver
X-Git-Tag: v2.11.0-rc3~1^2~7
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=1878eaff9bdeece4546d4f9587e6c75ab0b79b8b;p=thirdparty%2Fqemu.git

qemu-options: Mention locking option of file driver

Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---

diff --git a/qemu-options.hx b/qemu-options.hx
index 3728e9b4ddf..f11c4ac960f 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -693,6 +693,10 @@ This is the protocol-level block driver for accessing regular files.
 The path to the image file in the local filesystem
 @item aio
 Specifies the AIO backend (threads/native, default: threads)
+@item locking
+Specifies whether the image file is protected with Linux OFD / POSIX locks. The
+default is to use the Linux Open File Descriptor API if available, otherwise no
+lock is applied.  (auto/on/off, default: auto)
 @end table
 Example:
 @example