linux-kernel - [PATCH] x86: use round_jiffies() for the corruption check timer

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Message-ID: <20080920203544.53a5148e@infradead.org>
Date:	Sat, 20 Sep 2008 20:35:44 -0700
From:	Arjan van de Ven <arjan@...radead.org>
To:	mingo@...e.hu
Cc:	linux-kernel@...r.kernel.org, Hugh Dickins <hugh@...itas.com>,
	Jeremy Fitzhardinge <jeremy.fitzhardinge@...rix.com>
Subject: [PATCH] x86: use round_jiffies() for the corruption check timer


From: Arjan van de Ven <arjan@...ux.intel.com>
Date: Sat, 20 Sep 2008 20:32:43 -0700
Subject: [PATCH] x86: use round_jiffies() for the corruption check timer

the exact timing of the corruption check isn't too important (it's once a
minute timer), use round_jiffies() to align it and avoid extra wakeups.

Signed-off-by: Arjan van de Ven <arjan@...ux.intel.com>
CC: Hugh Dickins <hugh@...itas.com>
CC: Jeremy Fitzhardinge <jeremy.fitzhardinge@...rix.com>
---
 arch/x86/kernel/setup.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index d5bd679..a9998cb 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -715,7 +715,7 @@ void check_for_bios_corruption(void)
 static void periodic_check_for_corruption(unsigned long data)
 {
 	check_for_bios_corruption();
-	mod_timer(&periodic_check_timer, jiffies + corruption_check_period*HZ);
+	mod_timer(&periodic_check_timer, round_jiffies(jiffies + corruption_check_period*HZ));
 }
 
 void start_periodic_check_for_corruption(void)
-- 
1.5.5.1



-- 
Arjan van de Ven 	Intel Open Source Technology Centre
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