From: Jianhui Zhou <jianhuizzzzz@gmail.com>
To: SeongJae Park <sj@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
jane.chu@oracle.com, Muchun Song <muchun.song@linux.dev>,
Oscar Salvador <osalvador@suse.de>,
Mike Rapoport <rppt@kernel.org>,
David Hildenbrand <david@kernel.org>,
Peter Xu <peterx@redhat.com>,
Andrea Arcangeli <aarcange@redhat.com>,
Mike Kravetz <mike.kravetz@oracle.com>,
Hugh Dickins <hughd@google.com>,
Sidhartha Kumar <sidhartha.kumar@oracle.com>,
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 v4] mm/userfaultfd: fix hugetlb fault mutex hash calculation
Date: Wed, 25 Mar 2026 14:07:19 +0800 [thread overview]
Message-ID: <CAEgWzV5vp7bfr8=W6aVXNBFqxd9nVc-BGtG1jFUXJ_-+WWmPPg@mail.gmail.com> (raw)
In-Reply-To: <20260325010618.85366-1-sj@kernel.org>
On Tue, Mar 25, 2026 at 01:06:00AM +0000, SeongJae Park wrote:
> Seems userfaulfd.c is the only caller of the new helper function. Why don't
> you define the function in userfaultfd.c ?
I kept hugetlb_linear_page_index() in include/linux/hugetlb.h because
this is hugetlb-specific logic, not userfaultfd-specific logic.
The goal was simply to avoid open-coding the hugetlb index conversion
outside hugetlb code and to make the unit change explicit at the call site.
next prev parent reply other threads:[~2026-03-25 6:07 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
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 [this message]
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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