From b0f8c44f30e58c3aaaaaf864d5c3d3cc2e8a4c2d Mon Sep 17 00:00:00 2001
From: Colin Cross <ccross@android.com>
Date: Mon, 6 May 2013 23:50:19 +0000
Subject: [PATCH] nanosleep: use freezable blocking call

Avoid waking up every thread sleeping in a nanosleep call during
suspend and resume by calling a freezable blocking call.  Previous
patches modified the freezer to avoid sending wakeups to threads
that are blocked in freezable blocking calls.

This call was selected to be converted to a freezable call because
it doesn't hold any locks or release any resources when interrupted
that might be needed by another freezing task or a kernel driver
during suspend, and is a common site where idle userspace tasks are
blocked.

Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
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