diff options
| author |   Andi Kleen <ak@suse.de> | 2006-09-26 10:52:40 +0200 |
|---|---|---|
| committer |   Andi Kleen <andi@basil.nowhere.org> | 2006-09-26 10:52:40 +0200 |
| commit | a15da49debaf7f09460a886b0ecd08588410715e (patch) | |
| tree | 685ed022695ff03cec167c6690815e08191a803c /include/asm-x86_64/pda.h | |
| parent | [PATCH] Remove experimental mark of kexec (diff) | |
| download | linux-dev-a15da49debaf7f09460a886b0ecd08588410715e.tar.xz linux-dev-a15da49debaf7f09460a886b0ecd08588410715e.zip | |
[PATCH] Fix idle notifiers
Previously exit_idle would be called more often than enter_idle
Now instead of using complicated tests just keep track of it
using the per CPU variable as a flip flop. I moved the idle state into the
PDA to make the access more efficient.
Original bug report and an initial patch from Stephane Eranian,
but redone by AK.
Cc: Stephane Eranian <eranian@hpl.hp.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Diffstat (limited to 'include/asm-x86_64/pda.h')
| -rw-r--r-- | include/asm-x86_64/pda.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/asm-x86_64/pda.h b/include/asm-x86_64/pda.h index 531f48a6c3af..14996d962bac 100644 --- a/include/asm-x86_64/pda.h +++ b/include/asm-x86_64/pda.h @@ -25,7 +25,8 @@ struct x8664_pda { int nodenumber; /* number of current node */ unsigned int __softirq_pending; unsigned int __nmi_count; /* number of NMI on this CPUs */ - int mmu_state; + short mmu_state; + short isidle; struct mm_struct *active_mm; unsigned apic_timer_irqs; } ____cacheline_aligned_in_smp; |