From: Arjan van de Ven <arjan@linux.intel.com>
Date: Mon, 4 Feb 2013 22:44:33 +0000 (-0800)
Subject: NVMe: Use round_jiffies_relative() for the periodic, once-per-second timer
X-Git-Tag: v3.10-rc1~21^2~21
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=acb7aa0db09b8abd38abeb84334a8a27a52fbb1b;p=pandora-kernel.git

NVMe: Use round_jiffies_relative() for the periodic, once-per-second timer

The nvme driver has a "once per second" event where the management kthread
wakes up the system and then reschedules itself for 1 second later.
For power efficiency reasons, I'd like this timer to happen together
with other wakeups in the system.

This patch makes the schedule_timeout() call in the kthread use
round_jiffies_relative(), causing the wakeup to at least align with other
"once per X seconds" events in the kernel.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Tested-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
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