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From: Jianhui Zhou <jianhuizzzzz@gmail.com>
To: "David Hildenbrand (Arm)" <david@kernel.org>
Cc: Muchun Song <muchun.song@linux.dev>,
	Oscar Salvador <osalvador@suse.de>,
	 Andrew Morton <akpm@linux-foundation.org>,
	Mike Rapoport <rppt@kernel.org>,  Peter Xu <peterx@redhat.com>,
	Andrea Arcangeli <aarcange@redhat.com>,
	 Mike Kravetz <mike.kravetz@oracle.com>,
	SeongJae Park <sj@kernel.org>,
	 Jonas Zhou <jonaszhou@zhaoxin.com>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	 stable@vger.kernel.org,
	syzbot+f525fd79634858f478e7@syzkaller.appspotmail.com
Subject: Re: [PATCH v2] mm/userfaultfd: fix hugetlb fault mutex hash calculation
Date: Tue, 10 Mar 2026 18:24:57 +0800	[thread overview]
Message-ID: <CAEgWzV6ZzVY=vz5=v=pMWYkanzd9q5XtRRjo35DHtCxrS66Nrw@mail.gmail.com> (raw)
In-Reply-To: <ae1bd46a-c5b6-4b74-b861-eefca84979ce@kernel.org>

On Mon, Mar 09, 2026 at 05:47:26PM +0100, David Hildenbrand wrote:
> It's hard to put my disgust about the terminology "hugecache" into
> words. Not your fault, but we should do better :)
>
> If you're starting to use that from other MM code then hugetlb.c, please
> find a better name.
>
> Further, I wonder whether we can avoid passing in "struct hstate *h" and
> simply call hstate_vma() internally.
>
> Something like the following to mimic linear_page_index() ?

Agreed. I'll add hugetlb_linear_page_index() in include/linux/hugetlb.h
with hstate_vma() called internally, and keep vma_hugecache_offset() as
a static function in mm/hugetlb.c untouched. Will send v4.

Thanks!


  reply	other threads:[~2026-03-10 10:24 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-06 14:03 [PATCH] mm/userfaultfd: fix hugetlb fault mutex hash calculation Jianhui Zhou
2026-03-06 16:53 ` Peter Xu
2026-03-07 13:37   ` 周建辉
2026-03-07 13:59   ` Jianhui Zhou
2026-03-07  3:27 ` SeongJae Park
2026-03-08 13:41   ` Jianhui Zhou
2026-03-08 22:57     ` SeongJae Park
2026-03-07 14:35 ` [PATCH v2] " Jianhui Zhou
2026-03-09  2:08   ` Hugh Dickins
2026-03-09  3:08     ` Jianhui Zhou
2026-03-09 16:47   ` David Hildenbrand (Arm)
2026-03-10 10:24     ` Jianhui Zhou [this message]
2026-03-09  3:30 ` [PATCH v3] " Jianhui Zhou
2026-03-10 11:05 ` [PATCH v4] " Jianhui Zhou
2026-03-10 19:47   ` jane.chu
2026-03-11 10:54     ` Jianhui Zhou
2026-03-25  0:03       ` Andrew Morton
2026-03-25  1:06         ` SeongJae Park
2026-03-25  6:07           ` Jianhui Zhou
2026-03-25  8:49             ` David Hildenbrand (Arm)
2026-03-25 19:08               ` Mike Rapoport
2026-03-25  8:49         ` David Hildenbrand (Arm)
2026-03-25 19:02           ` Mike Rapoport
2026-03-25 23:46           ` jane.chu
2026-03-26  9:18             ` David Hildenbrand (Arm)
2026-03-25 19:10         ` Mike Rapoport

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