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authorVenki Pallipadi <venkatesh.pallipadi@intel.com>2007-07-21 11:10:44 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-21 21:37:10 -0400
commit22293e5806f58a9682267139678a5cc117fd3dcf (patch)
tree63f1961afb05a4757f9716ab2339f40b1f28f3b2 /arch/i386
parent459029541d857258dfa9ad29e443d287a74c36fe (diff)
x86: round_jiffies() for i386 and x86-64 non-critical/corrected MCE polling
This helps to reduce the frequency at which the CPU must be taken out of a lower-power state. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Acked-by: Tim Hockin <thockin@hockin.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/i386')
-rw-r--r--arch/i386/kernel/cpu/mcheck/non-fatal.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/i386/kernel/cpu/mcheck/non-fatal.c b/arch/i386/kernel/cpu/mcheck/non-fatal.c
index 6b5d3518a1c0..bf39409b3838 100644
--- a/arch/i386/kernel/cpu/mcheck/non-fatal.c
+++ b/arch/i386/kernel/cpu/mcheck/non-fatal.c
@@ -57,7 +57,7 @@ static DECLARE_DELAYED_WORK(mce_work, mce_work_fn);
57static void mce_work_fn(struct work_struct *work) 57static void mce_work_fn(struct work_struct *work)
58{ 58{
59 on_each_cpu(mce_checkregs, NULL, 1, 1); 59 on_each_cpu(mce_checkregs, NULL, 1, 1);
60 schedule_delayed_work(&mce_work, MCE_RATE); 60 schedule_delayed_work(&mce_work, round_jiffies_relative(MCE_RATE));
61} 61}
62 62
63static int __init init_nonfatal_mce_checker(void) 63static int __init init_nonfatal_mce_checker(void)
@@ -82,7 +82,7 @@ static int __init init_nonfatal_mce_checker(void)
82 /* 82 /*
83 * Check for non-fatal errors every MCE_RATE s 83 * Check for non-fatal errors every MCE_RATE s
84 */ 84 */
85 schedule_delayed_work(&mce_work, MCE_RATE); 85 schedule_delayed_work(&mce_work, round_jiffies_relative(MCE_RATE));
86 printk(KERN_INFO "Machine check exception polling timer started.\n"); 86 printk(KERN_INFO "Machine check exception polling timer started.\n");
87 return 0; 87 return 0;
88} 88}