Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1ff100d76ff76477a2ead3aac94d04f2e891f44e
Commit:     1ff100d76ff76477a2ead3aac94d04f2e891f44e
Parent:     d340d89087534e8b12e1b6ed1c1569dd892b5465
Author:     john stultz <[EMAIL PROTECTED]>
AuthorDate: Mon Mar 26 21:32:19 2007 -0800
Committer:  Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Tue Mar 27 09:05:15 2007 -0700

    [PATCH] correct slow acpi_pm rating
    
    On Bob's machine clocksource is selecting PIT over the ACPI PM timer,
    because he has the PIIX4 bug.  That bug drops the ACPI PM timers rating
    to the same as the PIT, so that's why you're getting the PIT.
    
    Realistically, the PIT is much slower then even the triple read ACPI PM,
    so the de-ranking code is probably dropping it too far.
    
    So don't drop ACPI PM quite so low if we see the PIIX4 bug.
    
    Signed-off-by: John Stultz <[EMAIL PROTECTED]>
    Cc: Bob Tracy <[EMAIL PROTECTED]>
    Cc: Ingo Molnar <[EMAIL PROTECTED]>
    Cc: Thomas Gleixner <[EMAIL PROTECTED]>
    Cc: Andi Kleen <[EMAIL PROTECTED]>
    Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
    Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
 drivers/clocksource/acpi_pm.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/clocksource/acpi_pm.c b/drivers/clocksource/acpi_pm.c
index d42060e..5ac309e 100644
--- a/drivers/clocksource/acpi_pm.c
+++ b/drivers/clocksource/acpi_pm.c
@@ -90,7 +90,7 @@ __setup("acpi_pm_good", acpi_pm_good_setup);
 static inline void acpi_pm_need_workaround(void)
 {
        clocksource_acpi_pm.read = acpi_pm_read_slow;
-       clocksource_acpi_pm.rating = 110;
+       clocksource_acpi_pm.rating = 120;
 }
 
 /*
-
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