* [Qemu-devel] [5289] Do not allow AIO to be inited multiple times
@ 2008-09-22 14:49 Anthony Liguori
0 siblings, 0 replies; only message in thread
From: Anthony Liguori @ 2008-09-22 14:49 UTC (permalink / raw)
To: qemu-devel
Revision: 5289
http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=5289
Author: aliguori
Date: 2008-09-22 14:49:01 +0000 (Mon, 22 Sep 2008)
Log Message:
-----------
Do not allow AIO to be inited multiple times
This prevents two signalfd() threads from being spawned. This problem was
originally spotted by Blue Swirl.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Modified Paths:
--------------
trunk/block-raw-posix.c
Modified: trunk/block-raw-posix.c
===================================================================
--- trunk/block-raw-posix.c 2008-09-22 01:39:29 UTC (rev 5288)
+++ trunk/block-raw-posix.c 2008-09-22 14:49:01 UTC (rev 5289)
@@ -511,6 +511,9 @@
{
sigset_t mask;
+ if (aio_initialized)
+ return;
+
aio_initialized = 1;
/* Make sure to block AIO signal */
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2008-09-22 14:49 [Qemu-devel] [5289] Do not allow AIO to be inited multiple times Anthony Liguori
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