diff options
| author | Yinghai Lu <yinghai@kernel.org> | 2008-12-19 15:23:44 -0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-12-23 22:37:28 +0100 |
| commit | b77b881f21b29aa7efa668fde69ee3dc0372ae3f (patch) | |
| tree | a4039161e9bcab3e9c2fd2e2aa70fee16103857b /arch/x86/include/asm/irq.h | |
| parent | a7883dece6ef82097e6bdf19c1d0a20351e06056 (diff) | |
| download | lwn-b77b881f21b29aa7efa668fde69ee3dc0372ae3f.tar.gz lwn-b77b881f21b29aa7efa668fde69ee3dc0372ae3f.zip | |
x86: fix lguest used_vectors breakage, -v2
Impact: fix lguest, clean up
32-bit lguest used used_vectors to record vectors, but that model of
allocating vectors changed and got broken, after we changed vector
allocation to a per_cpu array.
Try enable that for 64bit, and the array is used for all vectors that
are not managed by vector_irq per_cpu array.
Also kill system_vectors[], that is now a duplication of the
used_vectors bitmap.
[ merged in cpus4096 due to io_apic.c cpumask changes. ]
[ -v2, fix build failure ]
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/include/asm/irq.h')
| -rw-r--r-- | arch/x86/include/asm/irq.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/irq.h b/arch/x86/include/asm/irq.h index 8766d30fb746..4bb732e45a85 100644 --- a/arch/x86/include/asm/irq.h +++ b/arch/x86/include/asm/irq.h @@ -46,5 +46,6 @@ extern void native_init_IRQ(void); /* Interrupt vector management */ extern DECLARE_BITMAP(used_vectors, NR_VECTORS); +extern int vector_used_by_percpu_irq(unsigned int vector); #endif /* _ASM_X86_IRQ_H */ |