linux-kernel - which signal is sent to freeze process?

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Message-ID: <A3258B497F1C1441AD36A2E8B45FD6285507A5@scsmsx412.amr.corp.intel.com>
Date:	Wed, 18 Jul 2007 16:42:02 -0700
From:	"Agarwal, Lomesh" <lomesh.agarwal@...el.com>
To:	<linux-kernel@...r.kernel.org>
Subject: which signal is sent to freeze process?

My understanding is that Linux kernel sends a signal to freeze processes
during suspend2ram operation. Which signal is used to achieve this?
The problem I am facing is that some of the system calls are failing
with EINTR errno during suspend operation and I want to install a signal
handler for freeze signal with SA_RESTART flag. That should make the
kernel to retry the system calls. Right?

Thanks,
Lomesh
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