diff options
| -rw-r--r-- | include/asm-x86_64/hardirq.h | 3 | ||||
| -rw-r--r-- | include/linux/hardirq.h | 7 |
2 files changed, 9 insertions, 1 deletions
diff --git a/include/asm-x86_64/hardirq.h b/include/asm-x86_64/hardirq.h index 64a65ce2f41..95d5e090ed8 100644 --- a/include/asm-x86_64/hardirq.h +++ b/include/asm-x86_64/hardirq.h @@ -6,6 +6,9 @@ #include <asm/pda.h> #include <asm/apic.h> +/* We can have at most NR_VECTORS irqs routed to a cpu at a time */ +#define MAX_HARDIRQS_PER_CPU NR_VECTORS + #define __ARCH_IRQ_STAT 1 #define local_softirq_pending() read_pda(__softirq_pending) diff --git a/include/linux/hardirq.h b/include/linux/hardirq.h index 50d8b5744cf..612472aaa79 100644 --- a/include/linux/hardirq.h +++ b/include/linux/hardirq.h @@ -28,11 +28,16 @@ #ifndef HARDIRQ_BITS #define HARDIRQ_BITS 12 + +#ifndef MAX_HARDIRQS_PER_CPU +#define MAX_HARDIRQS_PER_CPU NR_IRQS +#endif + /* * The hardirq mask has to be large enough to have space for potentially * all IRQ sources in the system nesting on a single CPU. */ -#if (1 << HARDIRQ_BITS) < NR_IRQS +#if (1 << HARDIRQ_BITS) < MAX_HARDIRQS_PER_CPU # error HARDIRQ_BITS is too low! #endif #endif |