On Mon, Mar 13, 2017 at 02:30:46PM +0100, Borislav Petkov wrote: >On Mon, Feb 06, 2017 at 11:35:29PM +0800, Wei Yang wrote: >> numa_nodemask_from_meminfo() is called to set bit according to >> numa_meminfo. While the only two places for this call is used to set proper >> bit to a copy of numa_nodes_parsed from numa_meminfo. With current code >> path, those numa node information in numa_meminfo is a subset of >> numa_nodes_parsed. So it is not necessary to set the bits again. >> >> The following is a code path analysis to prove the numa node information in >> numa_meminfo is a subset of numa_nodes_parsed. >> >> x86_numa_init() >> numa_init() >> Case 1 >> acpi_numa_init() >> acpi_parse_memory_affinity() >> numa_add_memblk() >> node_set(numa_nodes_parsed) >> acpi_parse_slit() >> numa_nodemask_from_meminfo() >> >> Case 2 >> amd_numa_init() >> numa_add_memblk() >> node_set(numa_nodes_parsed) >> >> Case 3 >> dummy_numa_init() >> node_set(numa_nodes_parsed) >> numa_add_memblk() >> >> numa_register_memblks() >> numa_nodemask_from_meminfo() > >What about of_numa_parse_memory_nodes() ? >
Hi, Borislav
Glad to see your comment.
Here is the only place who will invoke of_numa_parse_memory_nodes()
arm64_numa_init()
of_numa_init()
of_numa_parse_memory_nodes()
So this is an arm64 specific function.
In this patch, these numa_nodemask_from_meminfo only affects x86.
>--
>Regards/Gruss,
> Boris.
>
>Good mailing practices for 400: avoid top-posting and trim the reply.
--
Wei Yang
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