linux-kernel - Re: [PATCH v13 0/7] fsdax: introduce fs query to support reflink

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Message-ID: <YmDxs1Hj4H/cu2sd@infradead.org>
Date:   Wed, 20 Apr 2022 22:54:59 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Dave Chinner <david@...morbit.com>
Cc:     Dan Williams <dan.j.williams@...el.com>,
        Shiyang Ruan <ruansy.fnst@...itsu.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-xfs <linux-xfs@...r.kernel.org>,
        Linux NVDIMM <nvdimm@...ts.linux.dev>,
        Linux MM <linux-mm@...ck.org>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        "Darrick J. Wong" <djwong@...nel.org>,
        Christoph Hellwig <hch@...radead.org>,
        Jane Chu <jane.chu@...cle.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Naoya Horiguchi <naoya.horiguchi@....com>
Subject: Re: [PATCH v13 0/7] fsdax: introduce fs query to support reflink

On Thu, Apr 21, 2022 at 02:35:02PM +1000, Dave Chinner wrote:
> Sure, I'm not a maintainer and just the stand-in patch shepherd for
> a single release. However, being unable to cleanly merge code we
> need integrated into our local subsystem tree for integration
> testing because a patch dependency with another subsystem won't gain
> a stable commit ID until the next merge window is .... distinctly
> suboptimal.

Yes.  Which is why we've taken a lot of mm patchs through other trees,
sometimes specilly crafted for that.  So I guess in this case we'll
just need to take non-trivial dependencies into the XFS tree, and just
deal with small merge conflicts for the trivial ones.