Re: [PATCH] mm: memblock: Fix arguments passed to memblock_set_node()

["Jiaxun Yang" <jiaxun.yang@flygoat.com>]

在2025年4月25日周五 下午3:18，David Woodhouse写道：
[...]

Hi David & co,
>
>
> I did a quick grep for memblock_set_node() callers, and the one in
> szmem() in arch/mips/loongson64/init.c looks odd.
>
>        /* set nid for reserved memory */
>        memblock_set_node((u64)node << 44, (u64)(node + 1) << 44,
>                        &memblock.reserved, node);
>
> At first glance I suspect the 'size' should just be (1<<44) or maybe it
> should be inside the loop over the memmap, and called with mem_start,
> mem_size each time?

You are right, it should be (1 << 44), it is an oversight when I was
converting MIPS private boot allocator to memblock.

>
> And why are we calling memblock_reserve() for what appears to be a
> single system-wide vgabios_addr, repeatedly each time szmem() is called
> for a different NUMA node?

Alas this should be done only for node 0.

Thanks

>
>
> 附件:
> * smime.p7s

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- Jiaxun