On Mon, Oct 3, 2011 at 12:24, KAMEZAWA Hiroyuki
<kamezawa.hiroyu@jp.fujitsu.com> wrote:
> On Sun, 2 Oct 2011 21:57:07 +0800
> Wei Yang <weiyang.kernel@gmail.com> wrote:
>
>> Dear experts,
>>
>> I am viewing the source code of __release_region() in kernel/resource.c.
>> And I have one comment for the performance issue.
>>
>> For example, we have a resource tree like this.
>> 10-89
>>    20-79
>>        30-49
>>        55-59
>>        60-64
>>        65-69
>>    80-89
>> 100-279
>>
>> If the caller wants to release a region of [50,59], the original code will

                                             ^^^^^^^
Do you really mean [50,59]?

I don't think that's allowed, as the tree has [55,59], so you would release a
larger region that allocated.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds