irq: initialize nr_irqs based on nr_cpu_ids
authorMike Travis <travis@sgi.com>
Sun, 11 Jan 2009 06:24:07 +0000 (22:24 -0800)
committerIngo Molnar <mingo@elte.hu>
Sun, 11 Jan 2009 18:13:38 +0000 (19:13 +0100)
commit9332fccdedf8e09448f3b69b624211ae879f6c45
tree81f74838f7c5388dc83a3cfd8009a22e223b4888
parent0fa0ebbf15addc1be8f73325d809c8547a9de304
irq: initialize nr_irqs based on nr_cpu_ids

Impact: Reduce memory usage.

This is the second half of the changes to make the irq_desc_ptrs be
variable sized based on nr_cpu_ids.  This is done by adding a new
"max_nr_irqs" macro to irq_vectors.h (and a dummy in irqnr.h) to
return a max NR_IRQS value based on NR_CPUS or nr_cpu_ids.

This necessitated moving the define of MAX_IO_APICS to a separate
file (asm/apicnum.h) so it could be included without the baggage
of the other asm/apicdef.h declarations.

Signed-off-by: Mike Travis <travis@sgi.com>
arch/x86/include/asm/apicdef.h
arch/x86/include/asm/apicnum.h [new file with mode: 0644]
arch/x86/include/asm/irq_vectors.h
include/linux/irqnr.h
kernel/irq/handle.c