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charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Catalin, On 3/11/20 4:27 AM, Catalin Marinas wrote: > On Thu, Feb 06, 2020 at 12:01:19PM -0800, Hoan Tran wrote: >> Hi Will, >> >> On 2/6/20 2:23 AM, Will Deacon wrote: >>> On Mon, Feb 03, 2020 at 11:55:14AM -0800, Hoan Tran wrote: >>>> Some NUMA nodes have memory ranges that span other nodes. >>>> Even though a pfn is valid and between a node's start and end pfns, >>>> it may not reside on that node. >>>> >>>> This patch enables NODES_SPAN_OTHER_NODES config for NUMA to support >>>> this type of NUMA layout. >>>> >>>> Signed-off-by: Hoan Tran >>>> --- >>>> arch/arm64/Kconfig | 7 +++++++ >>>> 1 file changed, 7 insertions(+) >>>> >>>> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig >>>> index e688dfa..939d28f 100644 >>>> --- a/arch/arm64/Kconfig >>>> +++ b/arch/arm64/Kconfig >>>> @@ -959,6 +959,13 @@ config NEED_PER_CPU_EMBED_FIRST_CHUNK >>>> config HOLES_IN_ZONE >>>> def_bool y >>>> +# Some NUMA nodes have memory ranges that span other nodes. >>>> +# Even though a pfn is valid and between a node's start and end pfns, >>>> +# it may not reside on that node. >>>> +config NODES_SPAN_OTHER_NODES >>>> + def_bool y >>>> + depends on ACPI_NUMA >>>> + >>> >>> I thought we agreed to do this in the core code? >>> >>> https://lore.kernel.org/lkml/1562887528-5896-1-git-send-email-Hoan@os.amperecomputing.com >> >> Yes, but it looks like Thomas didn't agree to apply this patch into >> x86. >> >> https://lore.kernel.org/lkml/alpine.DEB.2.21.1907152042110.1767@nanos.tec.linutronix.de/ > > Was it a clear statement that such change will not make it to x86 or a > request for improving the patch or the description? I'd suggest you > update the x86 patch comment to include the rationale as per your reply > to Thomas and post a new version of the generic series. If Thomas (or > the mm folk) reject it again, we'll revisit the arm64-specific thread. Yes, I have just sent out a new patch for mm core. Regards Hoan > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel