From: Christoph Hellwig <hch@lst.de>
To: Damien Le Moal <dlemoal@kernel.org>
Cc: Hannes Reinecke <hare@suse.de>, Christoph Hellwig <hch@lst.de>,
Nitesh Shetty <nj.shetty@samsung.com>,
Jens Axboe <axboe@kernel.dk>, Jonathan Corbet <corbet@lwn.net>,
Alasdair Kergon <agk@redhat.com>,
Mike Snitzer <snitzer@kernel.org>,
Mikulas Patocka <mpatocka@redhat.com>,
Keith Busch <kbusch@kernel.org>, Sagi Grimberg <sagi@grimberg.me>,
Chaitanya Kulkarni <kch@nvidia.com>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Christian Brauner <brauner@kernel.org>, Jan Kara <jack@suse.cz>,
martin.petersen@oracle.com, bvanassche@acm.org,
david@fromorbit.com, damien.lemoal@opensource.wdc.com,
anuj20.g@samsung.com, joshi.k@samsung.com,
nitheshshetty@gmail.com, gost.dev@samsung.com,
linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-doc@vger.kernel.org, dm-devel@lists.linux.dev,
linux-nvme@lists.infradead.org, linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH v20 00/12] Implement copy offload support
Date: Wed, 5 Jun 2024 10:14:07 +0200 [thread overview]
Message-ID: <20240605081407.GA18688@lst.de> (raw)
In-Reply-To: <5441b256-494a-4344-89fd-ee8c5a073f8b@kernel.org>
On Tue, Jun 04, 2024 at 04:39:25PM +0900, Damien Le Moal wrote:
> > But I wasn't aware that this approach is limited to copying within a
> > single block devices; that would be quite pointless indeed.
>
> Not pointless for any FS doing CoW+Rebalancing of block groups (e.g. btrfs) and
> of course GC for FSes on zoned devices. But for this use case, an API allowing
> multiple sources and one destination would be better.
Yes.
next prev parent reply other threads:[~2024-06-05 8:14 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-04 4:32 [PATCH v20 00/12] Implement copy offload support Christoph Hellwig
2024-06-04 7:16 ` Hannes Reinecke
2024-06-04 7:39 ` Damien Le Moal
2024-06-05 8:14 ` Christoph Hellwig [this message]
[not found] <CGME20240520102747epcas5p33497a911ca70c991e5da8e22c5d1336b@epcas5p3.samsung.com>
2024-05-20 10:20 ` Nitesh Shetty
2024-05-20 22:54 ` Bart Van Assche
2024-06-01 5:47 ` Christoph Hellwig
2024-06-03 10:53 ` Nitesh Shetty
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