From: Dave Jones <davej@redhat.com>
Date: Fri, 28 Apr 2006 01:39:24 +0000 (-0700)
Subject: [PATCH] Avoid printing pointless tsc skew msgs
X-Git-Tag: v2.6.17-rc4~129
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7f5910ecabd3a36b9c06f73e33b673ccf150f3b4;p=linux-2.6

[PATCH] Avoid printing pointless tsc skew msgs

These messages are kinda silly..

CPU#0 had 0 usecs TSC skew, fixed it up.
CPU#1 had 0 usecs TSC skew, fixed it up.

inspired from: http://bugzilla.kernel.org/attachment.cgi?id=7713&action=view

Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/arch/i386/kernel/smpboot.c b/arch/i386/kernel/smpboot.c
index a6969903f2..825b2b4ca7 100644
--- a/arch/i386/kernel/smpboot.c
+++ b/arch/i386/kernel/smpboot.c
@@ -313,7 +313,9 @@ static void __init synchronize_tsc_bp (void)
 			if (tsc_values[i] < avg)
 				realdelta = -realdelta;
 
-			printk(KERN_INFO "CPU#%d had %ld usecs TSC skew, fixed it up.\n", i, realdelta);
+			if (realdelta > 0)
+				printk(KERN_INFO "CPU#%d had %ld usecs TSC "
+					"skew, fixed it up.\n", i, realdelta);
 		}
 
 		sum += delta;