linux-kernel - Re: [PATCH 1/3] mm: userfaultfd: add new UFFDIO

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Message-ID: <ZGadwEDlsvIxnsvq@x1n>
Date:   Thu, 18 May 2023 17:50:56 -0400
From:   Peter Xu <peterx@...hat.com>
To:     Axel Rasmussen <axelrasmussen@...gle.com>
Cc:     Jiaqi Yan <jiaqiyan@...gle.com>,
        James Houghton <jthoughton@...gle.com>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Christian Brauner <brauner@...nel.org>,
        David Hildenbrand <david@...hat.com>,
        Hongchen Zhang <zhanghongchen@...ngson.cn>,
        Huang Ying <ying.huang@...el.com>,
        "Liam R. Howlett" <Liam.Howlett@...cle.com>,
        Miaohe Lin <linmiaohe@...wei.com>,
        "Mike Rapoport (IBM)" <rppt@...nel.org>,
        Nadav Amit <namit@...are.com>,
        Naoya Horiguchi <naoya.horiguchi@....com>,
        Shuah Khan <shuah@...nel.org>,
        ZhangPeng <zhangpeng362@...wei.com>,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, linux-kselftest@...r.kernel.org,
        Anish Moorthy <amoorthy@...gle.com>
Subject: Re: [PATCH 1/3] mm: userfaultfd: add new UFFDIO_SIGBUS ioctl

On Thu, May 18, 2023 at 05:38:14PM -0400, Peter Xu wrote:
> If with uffd, perhaps avoid calling it sigbus? As we have FEATURE_SIGBUS
> and I'm afraid it'll cause confusion.  UFFDIO_HWPOISON may sound more
> suitable?

Or UFFDIO_POISON (to identify it from real hw poisons)..

-- 
Peter Xu