linux-kernel - Re: [PATCH] copy_file_range.2: Update cross-filesystem support for 5.12

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Date:   Tue, 11 May 2021 04:34:47 +1200
From:   "Michael Kerrisk (man-pages)" <mtk.manpages@...il.com>
To:     Amir Goldstein <amir73il@...il.com>
Cc:     mtk.manpages@...il.com, Alejandro Colomar <alx.manpages@...il.com>,
        linux-man <linux-man@...r.kernel.org>,
        Luis Henriques <lhenriques@...e.de>,
        Greg KH <gregkh@...uxfoundation.org>,
        Anna Schumaker <anna.schumaker@...app.com>,
        Jeff Layton <jlayton@...nel.org>,
        Steve French <sfrench@...ba.org>,
        Miklos Szeredi <miklos@...redi.hu>,
        Trond Myklebust <trond.myklebust@...merspace.com>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        "Darrick J. Wong" <darrick.wong@...cle.com>,
        Dave Chinner <dchinner@...hat.com>,
        Nicolas Boichat <drinkcat@...omium.org>,
        Ian Lance Taylor <iant@...gle.com>,
        Luis Lozano <llozano@...omium.org>,
        Andreas Dilger <adilger@...ger.ca>,
        Olga Kornievskaia <aglo@...ch.edu>,
        Christoph Hellwig <hch@...radead.org>,
        ceph-devel <ceph-devel@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        CIFS <linux-cifs@...r.kernel.org>,
        samba-technical <samba-technical@...ts.samba.org>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        Linux NFS Mailing List <linux-nfs@...r.kernel.org>,
        Walter Harms <wharms@....de>
Subject: Re: [PATCH] copy_file_range.2: Update cross-filesystem support for
 5.12

Hi Amir,

On 5/10/21 4:26 PM, Amir Goldstein wrote:
> On Mon, May 10, 2021 at 3:01 AM Michael Kerrisk (man-pages)
> <mtk.manpages@...il.com> wrote:
>>
>> Hi Alex,
>>
>> On 5/10/21 9:39 AM, Alejandro Colomar wrote:
>>> Linux 5.12 fixes a regression.
> 
> Nope.
> That never happened:
> https://lore.kernel.org/linux-fsdevel/8735v4tcye.fsf@suse.de/
> 
>>>
>>> Cross-filesystem (introduced in 5.3) copies were buggy.
>>>
>>> Move the statements documenting cross-fs to BUGS.
>>> Kernels 5.3..5.11 should be patched soon.
>>>
>>> State version information for some errors related to this.
>>
>> Thanks. Patch applied.
> 
> I guess that would need to be reverted...

Thanks for catching that. I had not pushed the patch, so 
I'll just drop it.

Cheers,

Michael


-- 
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/