linux-kernel - Re: [PATCH v4 10/10] userfaultfd: update documentation to mention shmem minor faults

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Message-ID: <alpine.LSU.2.11.2104261924270.2998@eggly.anvils>
Date:   Mon, 26 Apr 2021 19:27:27 -0700 (PDT)
From:   Hugh Dickins <hughd@...gle.com>
To:     Axel Rasmussen <axelrasmussen@...gle.com>
cc:     Alexander Viro <viro@...iv.linux.org.uk>,
        Andrea Arcangeli <aarcange@...hat.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Hugh Dickins <hughd@...gle.com>,
        Jerome Glisse <jglisse@...hat.com>,
        Joe Perches <joe@...ches.com>,
        Lokesh Gidra <lokeshgidra@...gle.com>,
        Mike Kravetz <mike.kravetz@...cle.com>,
        Mike Rapoport <rppt@...ux.vnet.ibm.com>,
        Peter Xu <peterx@...hat.com>, Shaohua Li <shli@...com>,
        Shuah Khan <shuah@...nel.org>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Wang Qing <wangqing@...o.com>, linux-api@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-kselftest@...r.kernel.org, linux-mm@...ck.org,
        Brian Geffon <bgeffon@...gle.com>,
        "Dr . David Alan Gilbert" <dgilbert@...hat.com>,
        Mina Almasry <almasrymina@...gle.com>,
        Oliver Upton <oupton@...gle.com>
Subject: Re: [PATCH v4 10/10] userfaultfd: update documentation to mention
 shmem minor faults

On Tue, 20 Apr 2021, Axel Rasmussen wrote:

> Generally, the documentation we wrote for hugetlbfs-based minor faults
> still all applies. The only missing piece is to mention the new feature
> flag which indicates that the kernel supports this for shmem as well.
> 
> Signed-off-by: Axel Rasmussen <axelrasmussen@...gle.com>

Acked-by: Hugh Dickins <hughd@...gle.com>

(but could be folded into the one which defines UFFD_FEATURE_MINOR_SHMEM)

> ---
>  Documentation/admin-guide/mm/userfaultfd.rst | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)