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Message-ID: <diqzo6z98eee.fsf@ackerleytng-ctop.c.googlers.com>
Date: Tue, 11 Feb 2025 01:21:29 +0000
From: Ackerley Tng <ackerleytng@...gle.com>
To: Jun Miao <jun.miao@...el.com>
Cc: tabba@...gle.com, quic_eberman@...cinc.com, roypat@...zon.co.uk, 
	jgg@...dia.com, peterx@...hat.com, david@...hat.com, rientjes@...gle.com, 
	fvdl@...gle.com, jthoughton@...gle.com, seanjc@...gle.com, 
	pbonzini@...hat.com, zhiquan1.li@...el.com, fan.du@...el.com, 
	isaku.yamahata@...el.com, muchun.song@...ux.dev, mike.kravetz@...cle.com, 
	erdemaktas@...gle.com, vannapurve@...gle.com, qperret@...gle.com, 
	jhubbard@...dia.com, willy@...radead.org, shuah@...nel.org, 
	brauner@...nel.org, bfoster@...hat.com, kent.overstreet@...ux.dev, 
	pvorel@...e.cz, rppt@...nel.org, richard.weiyang@...il.com, 
	anup@...infault.org, haibo1.xu@...el.com, ajones@...tanamicro.com, 
	vkuznets@...hat.com, maciej.wieczor-retman@...el.com, pgonda@...gle.com, 
	oliver.upton@...ux.dev, linux-kernel@...r.kernel.org, linux-mm@...ck.org, 
	kvm@...r.kernel.org, linux-kselftest@...r.kernel.org, linux-fsdevel@...ck.org, 
	jun.miao@...el.com
Subject: Re: [RFC PATCH 15/39] KVM: guest_memfd: hugetlb: allocate and
 truncate from hugetlb

Jun Miao <jun.miao@...el.com> writes:

> Hi Ackerley,
> Due to actual customer requirements(such as ByteDance), I have added 
> support for NUMA policy based on your foundation.
> Standing on the shoulders of giants, please correct me if there is 
> anyting wrong.
>
> --- Thanks Jun.miao
>
> <snip>

Hi Jun,

Thank you for your email and sorry about the delayed reply, haven't had
a chance to look at NUMA support.

Shivank Garg just posted a series for NUMA mempolicy support [1], which
is dependent on mmap() and then mbind(). Does that work for your use
case, or must you have mempolicy set up at guest_memfd creation time?


Ackerley

[1] https://lore.kernel.org/all/20250210063227.41125-1-shivankg@amd.com/T/