From: Gregory Price <gourry@gourry.net>
To: Zi Yan <ziy@nvidia.com>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
kernel-team@meta.com, akpm@linux-foundation.org, vbabka@suse.cz,
surenb@google.com, mhocko@suse.com, jackmanb@google.com,
hannes@cmpxchg.org, richard.weiyang@gmail.com, osalvador@suse.de,
rientjes@google.com, david@redhat.com, joshua.hahnjy@gmail.com,
fvdl@google.com
Subject: Re: [PATCH v5] page_alloc: allow migration of smaller hugepages during contig_alloc
Date: Thu, 18 Dec 2025 16:07:50 -0500 [thread overview]
Message-ID: <aURtJj-krJxqLefP@gourry-fedora-PF4VCD3F> (raw)
In-Reply-To: <0E77F151-99B0-4F67-814A-4D79439C9A88@nvidia.com>
On Thu, Dec 18, 2025 at 02:45:37PM -0500, Zi Yan wrote:
> On 18 Dec 2025, at 14:08, Gregory Price wrote:
>
> Why not do hugetlb search when non-hugetlb fails in pfn_range_valid_contig()
> and give hugetlb_search result in an input parameter? Something like
>
Short discussion with Johannes - it's not worth trying to do any kind of
filtering, but we can at least optimize for the case where we don't
actually find any hugetlb regions (preventing a retry for no reason).
So I'll ship a v6 with a mild improvement.
~Gregory
prev parent reply other threads:[~2025-12-18 21:08 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-18 19:08 Gregory Price
2025-12-18 19:35 ` Johannes Weiner
2025-12-18 23:38 ` Gregory Price
2025-12-18 19:45 ` Zi Yan
2025-12-18 20:42 ` Gregory Price
2025-12-18 21:17 ` Zi Yan
2025-12-18 21:32 ` Gregory Price
2025-12-18 21:07 ` Gregory Price [this message]
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