Re: [PATCH] mm: make reserve_bootmem can crossed the nodes

[Johannes Weiner <hannes@saeurebad.de>]

Hi,

"Yinghai Lu" <yhlu.kernel@gmail.com> writes:

> On Thu, Mar 13, 2008 at 7:58 PM, Johannes Weiner <hannes@saeurebad.de> wrote:
>> Hi,
>>
>>
>>  KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> writes:
>>
>>  > Background:
>>  > - reserve_bootmem is called for *reserve* memory before bootmem allocator.
>>  > - It specifies <address, size>.
>>  > - Because <addrees, size> are argments, memory hole in <address, size> is not
>>  >   problem here.
>>  >
>>  > Before change,
>>  > - reseve_bootmem() only works for Node(0)
>>  >
>>  > After change
>>  > - reserve_bootmem() works on sutiable nodes for <address, size>
>>  > - It can spread accross among prural nodes.
>>
>>  After the change it will iterate over all nodes, reserving the range
>>  `address to address+size' on each of them.
>
>  +     /* out of range */
>  +     if (addr >= bdata->node_boot_start && addr < bdata->last_success)
>  +             return;
>
> out of range will bail out...

Sorry, I did not see that.

	Hannes