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| author | Yinghai Lu <yhlu.kernel@gmail.com> | 2008-08-19 20:50:09 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-10-16 16:52:32 +0200 |
| commit | 7f95ec9e4c12fd067febfd57532da1166d75d858 (patch) | |
| tree | b395b6776485f60e3f5d9d820ad665161ef76771 /include/linux/irq.h | |
| parent | 3060d6fe28570640c2d7d66d38b9eaa848c3b9e3 (diff) | |
| download | lwn-7f95ec9e4c12fd067febfd57532da1166d75d858.tar.gz lwn-7f95ec9e4c12fd067febfd57532da1166d75d858.zip | |
x86: move kstat_irqs from kstat to irq_desc
based on Eric's patch ...
together mold it with dyn_array for irq_desc, will allcate kstat_irqs for
nr_irq_desc alltogether if needed. -- at that point nr_cpus is known already.
v2: make sure system without generic_hardirqs works they don't have irq_desc
v3: fix merging
v4: [mingo@elte.hu] fix typo
[ mingo@elte.hu ] irq: build fix
fix:
arch/x86/xen/spinlock.c: In function 'xen_spin_lock_slow':
arch/x86/xen/spinlock.c:90: error: 'struct kernel_stat' has no member named 'irqs'
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/irq.h')
| -rw-r--r-- | include/linux/irq.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/irq.h b/include/linux/irq.h index 60c856aaac0f..cbf471aee1ce 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -158,6 +158,11 @@ struct irq_desc { struct irq_desc *next; struct timer_rand_state *timer_rand_state; #endif +#ifdef CONFIG_HAVE_DYN_ARRAY + unsigned int *kstat_irqs; +#else + unsigned int kstat_irqs[NR_CPUS]; +#endif irq_flow_handler_t handle_irq; struct irq_chip *chip; struct msi_desc *msi_desc; @@ -190,6 +195,8 @@ extern struct irq_desc *irq_to_desc(unsigned int irq); /* could be removed if we get rid of all irq_desc reference */ extern struct irq_desc irq_desc[NR_IRQS]; #endif +#define kstat_irqs_this_cpu(DESC) \ + ((DESC)->kstat_irqs[smp_processor_id()]) /* * Migration helpers for obsolete names, they will go away: |