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H A Dconfiguredcc38d1cce61e7d986e74dcd9bff2a5efc53a87c Mon Oct 11 13:31:15 CDT 2010 Marcelo Tosatti <mtosatti@redhat.com> signalfd compatibility

Port qemu-kvm's signalfd compat code.

commit 5a7fdd0abd7cd24dac205317a4195446ab8748b5
Author: Anthony Liguori <aliguori@us.ibm.com>
Date: Wed May 7 11:55:47 2008 -0500

Use signalfd() in io-thread

This patch reworks the IO thread to use signalfd() instead of sigtimedwait()
This will eliminate the need to use SIGIO everywhere.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>