linux-kernel - [PATCH] hrtimer: Remove overly verbose "switch to high res mode" message

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Message-ID: <ada1vlw126s.fsf_-_@cisco.com>
Date:	Thu, 24 Sep 2009 14:07:55 -0700
From:	Roland Dreier <rdreier@...co.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Thomas Gleixner <tglx@...utronix.de>, linux-kernel@...r.kernel.org
Subject: [PATCH] hrtimer: Remove overly verbose "switch to high res mode" message

On big systems, printing <number of CPUs> copies of

    Switched to high resolution mode on CPU nnn

clutters up the kernel log for minimal gain.  Just get rid of them.

Signed-off-by: Roland Dreier <rolandd@...co.com>
---
 > Yeah. The switched-to message could be eliminated altogether.

easy enough...

 kernel/hrtimer.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)

diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c
index e5d98ce..4267279 100644
--- a/kernel/hrtimer.c
+++ b/kernel/hrtimer.c
@@ -720,8 +720,6 @@ static int hrtimer_switch_to_hres(void)
 	/* "Retrigger" the interrupt to get things going */
 	retrigger_next_event(NULL);
 	local_irq_restore(flags);
-	printk(KERN_DEBUG "Switched to high resolution mode on CPU %d\n",
-	       smp_processor_id());
 	return 1;
 }
 
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