From: Andrew Morton <akpm@linux-foundation.org>
To: Muchun Song <muchun.song@linux.dev>
Cc: Huaisheng Ye <yehuaisheng@open-hieco.net>,
osalvador@suse.de, linux-mm@kvack.org, david@kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] mm/hugetlb: account for allowed nodes when gathering surplus pages
Date: Thu, 10 Sep 2026 15:20:26 -0700 [thread overview]
Message-ID: <20260910152026.5bcf5c5d7f1ecdcb0147ceaf@linux-foundation.org> (raw)
In-Reply-To: <8A0F6014-4E2C-4F07-9732-2DF32418B986@linux.dev>
On Thu, 10 Sep 2026 16:48:56 +0800 Muchun Song <muchun.song@linux.dev> wrote:
> > This fixes hugetlb mappings when, for example, a task runs with
> > MPOL_BIND on Node 1 while the existing free huge pages are on Node 0.
> >
> > Similar issue also could be found in ltp if the free pages of global pool
> > reside outside the nodes allowed by the application.
> > # cd ltp/testcases/kernel/mem/hugetlb/hugemmap/
> > # numactl --cpunodebind=0 --membind=1 ./hugemmap10
> >
> > Signed-off-by: Huaisheng Ye <yehuaisheng@open-hieco.net>
>
> Acked-by: Muchun Song <muchun.song@linux.dev>
Should we backport this?
If so, a Fixes: target would be helpful.
next prev parent reply other threads:[~2026-09-10 22:20 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-09 7:46 Huaisheng Ye
2026-09-10 8:48 ` Muchun Song
2026-09-10 22:20 ` Andrew Morton [this message]
2026-09-11 2:41 ` Muchun Song
2026-09-11 8:19 ` Huaisheng Ye
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