Messages in this thread | | | Date | Fri, 8 Mar 2013 23:22:43 -0800 | Subject | Re: [PATCH v2 12/26] x86, irq: Add realloc_irq_and_cfg_at() | From | Yinghai Lu <> |
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On Fri, Mar 8, 2013 at 11:53 AM, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> wrote: >> + * irq_realloc_desc - allocate irq descriptor for irq that is already reserved > > Which begs the question - why was it not allocated when it was reserved?
The reasons for not allocating them during reserving: 1. only several pins in ioapic are used, allocate for them pin, will waste memory for not used one. 2. relocate later could make sure irq_desc is allocated on local node ram.
Thanks
Yinghai
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