x86/apic: Try to spread IRQ vectors to different priority levels

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When assigning a new vector it is primarially done by adding 8
to the previously given out vector number. Hence, two
consequently allocated vector numbers would likely fall into the
same priority level. Try to spread vector numbers to different
priority levels better by changing the step from 8 to 16.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Link: http://lkml.kernel.org/r/20120607131514.GD4759@dhcp-26-207.brq.redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

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Alexander Gordeev 2012-06-07 15:15:15 +02:00 • committed by Ingo Molnar

parent 9d8e106676

commit 1bccd58bff

1 changed files with 3 additions and 4 deletions

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arch/x86/kernel/apic/io_apic.c

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