Re: [RFC PATCH] sparse_irq aka dyn_irq

[Yinghai Lu <yinghai@kernel.org>]

Andrew Morton wrote:
> On Mon, 10 Nov 2008 10:40:33 +0100 Ingo Molnar <mingo@elte.hu> wrote:
> 
>>>>> @@ -987,6 +988,8 @@ void __init mem_init(void)
>>>>>
>>>>>       set_highmem_pages_init();
>>>>>
>>>>> +     after_bootmem = 1;
>>>> this hack can go away once we have a proper percpu_alloc() that can be
>>>> used early enough.
>>> where is that fancy patch? current percpu_alloc(), will keep big 
>>> pointer in array..., instead of put that pointer in percpu_area
>>>
>>> 64bit has that after_bootmem already.
>> or at least introduce a "bootmem agnostic" allocator instead of 
>> open-coding the after_bootmem flag.
>>
>> Something like:
>>
>>   early_kzalloc()
>>
>> ?
>>
>> Andrew, any preferences?
> 
> My mind reading ain't what it was, and this after_bootmem flag is
> write-only in this patch.
> 
> So what's all this about?

if i use alloc_bootmem to get some memory, and later after_bootmem, can I use kfree to free it?

YH