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

[Yinghai Lu]

On Thu, Mar 13, 2008 at 7:58 PM, Johannes Weiner <hannes@xxxxxxxxxxxx> wrote:
> Hi,
>
>
>  KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> 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...

YH
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