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| author | Venki Pallipadi | 2007-07-21 17:10:44 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2007-07-22 03:37:10 +0200 |
| commit | 22293e5806f58a9682267139678a5cc117fd3dcf (patch) | |
| tree | 63f1961afb05a4757f9716ab2339f40b1f28f3b2 /arch/x86_64/kernel/mce.c | |
| parent | i386: add reference to the arguments (diff) | |
| download | kernel-qcow2-linux-22293e5806f58a9682267139678a5cc117fd3dcf.tar.gz kernel-qcow2-linux-22293e5806f58a9682267139678a5cc117fd3dcf.tar.xz kernel-qcow2-linux-22293e5806f58a9682267139678a5cc117fd3dcf.zip | |
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/x86_64/kernel/mce.c')
| -rw-r--r-- | arch/x86_64/kernel/mce.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/x86_64/kernel/mce.c b/arch/x86_64/kernel/mce.c index 7c8ab423abe3..4d8450ee3635 100644 --- a/arch/x86_64/kernel/mce.c +++ b/arch/x86_64/kernel/mce.c @@ -375,7 +375,8 @@ static void mcheck_timer(struct work_struct *work) if (mce_notify_user()) { next_interval = max(next_interval/2, HZ/100); } else { - next_interval = min(next_interval*2, check_interval*HZ); + next_interval = min(next_interval*2, + (int)round_jiffies_relative(check_interval*HZ)); } schedule_delayed_work(&mcheck_work, next_interval); @@ -428,7 +429,8 @@ static __init int periodic_mcheck_init(void) { next_interval = check_interval * HZ; if (next_interval) - schedule_delayed_work(&mcheck_work, next_interval); + schedule_delayed_work(&mcheck_work, + round_jiffies_relative(next_interval)); idle_notifier_register(&mce_idle_notifier); return 0; } @@ -720,7 +722,8 @@ static void mce_restart(void) on_each_cpu(mce_init, NULL, 1, 1); next_interval = check_interval * HZ; if (next_interval) - schedule_delayed_work(&mcheck_work, next_interval); + schedule_delayed_work(&mcheck_work, + round_jiffies_relative(next_interval)); } static struct sysdev_class mce_sysclass = { |