From: Jaegeuk Kim <jaegeuk@kernel.org>
To: Bart Van Assche <bvanassche@acm.org>
Cc: Damien Le Moal <dlemoal@kernel.org>, hch <hch@lst.de>,
Johannes Thumshirn <Johannes.Thumshirn@wdc.com>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
Nitesh Shetty <nj.shetty@samsung.com>,
Javier Gonzalez <javier.gonz@samsung.com>,
Matthew Wilcox <willy@infradead.org>,
Keith Busch <kbusch@kernel.org>, Keith Busch <kbusch@meta.com>,
"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
"linux-nvme@lists.infradead.org" <linux-nvme@lists.infradead.org>,
"linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
"io-uring@vger.kernel.org" <io-uring@vger.kernel.org>,
"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>,
"joshi.k@samsung.com" <joshi.k@samsung.com>
Subject: Re: [PATCHv10 0/9] write hints with nvme fdp, scsi streams
Date: Wed, 11 Dec 2024 21:21:44 +0000 [thread overview]
Message-ID: <Z1oCaLF8-xclgFB_@google.com> (raw)
In-Reply-To: <97ed9def-7dfd-4170-9e60-6c081da409bc@acm.org>
On 12/11, Bart Van Assche wrote:
> On 12/10/24 8:07 PM, Damien Le Moal wrote:
> > But for F2FS, the conventional unit is used for metadata and the other zoned LU
> > for data. How come copying from one to the other can be useful ?
>
> Hi Damien,
>
> What you wrote is correct in general. If a conventional and zoned LU are
> combined, data is only written to the conventional LU once the zoned LU
> is full. The data on the conventional LU may be migrated to the zoned LU
> during garbage collection. This is why copying from the conventional LU
> to the zoned LU is useful.
>
> Jaegeuk, please correct me if I got this wrong.
Bart is correct. It doesn't make sense forcing to use conventional LU for
metadata only, but shows the remaining conventional LU space to user as well.
In order to do that, we exploited the multi-partition support in F2FS by
aligning the section to zoned partition offset simply.
>
> Bart.
next prev parent reply other threads:[~2024-12-11 21:21 UTC|newest]
Thread overview: 105+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-29 15:19 [PATCHv10 0/9] write hints with nvme fdp, scsi streams Keith Busch
2024-10-29 15:19 ` [PATCHv10 1/9] block: use generic u16 for write hints Keith Busch
2024-10-29 17:21 ` Bart Van Assche
2024-10-29 15:19 ` [PATCHv10 2/9] block: introduce max_write_hints queue limit Keith Busch
2024-10-29 15:19 ` [PATCHv10 3/9] statx: add write hint information Keith Busch
2024-10-29 15:19 ` [PATCHv10 4/9] block: allow ability to limit partition write hints Keith Busch
2024-10-29 15:23 ` Christoph Hellwig
2024-10-29 17:25 ` Bart Van Assche
2024-10-30 4:46 ` Christoph Hellwig
2024-10-30 20:11 ` Keith Busch
2024-10-30 20:26 ` Bart Van Assche
2024-10-30 20:37 ` Keith Busch
2024-10-30 21:15 ` Bart Van Assche
2024-10-29 15:19 ` [PATCHv10 5/9] block, fs: add write hint to kiocb Keith Busch
2024-10-29 15:19 ` [PATCHv10 6/9] io_uring: enable per-io hinting capability Keith Busch
2024-11-07 2:09 ` Jens Axboe
2024-10-29 15:19 ` [PATCHv10 7/9] block: export placement hint feature Keith Busch
2024-10-29 15:19 ` [PATCHv10 9/9] scsi: set permanent stream count in block limits Keith Busch
2024-10-29 15:26 ` Christoph Hellwig
2024-10-29 15:34 ` Keith Busch
2024-10-29 15:37 ` Christoph Hellwig
2024-10-29 15:38 ` Keith Busch
2024-10-29 15:53 ` Christoph Hellwig
2024-10-29 16:22 ` Keith Busch
2024-10-30 4:55 ` Christoph Hellwig
2024-10-30 15:41 ` Keith Busch
2024-10-30 15:45 ` Christoph Hellwig
2024-10-30 15:48 ` Keith Busch
2024-10-30 15:50 ` Christoph Hellwig
2024-10-30 16:42 ` Keith Busch
2024-10-30 16:57 ` Christoph Hellwig
2024-10-30 17:05 ` Keith Busch
2024-10-30 17:15 ` Christoph Hellwig
2024-10-30 17:23 ` Keith Busch
2024-10-30 22:32 ` Keith Busch
2024-10-31 8:19 ` Hans Holmberg
2024-10-31 13:02 ` Christoph Hellwig
2024-10-31 14:06 ` Keith Busch
2024-11-01 7:16 ` Hans Holmberg
2024-11-01 8:19 ` Javier González
2024-11-01 14:49 ` Keith Busch
2024-11-06 14:26 ` Hans Holmberg
2024-10-30 16:59 ` Bart Van Assche
2024-10-30 17:14 ` Christoph Hellwig
2024-10-30 17:44 ` Bart Van Assche
2024-11-01 1:03 ` Jaegeuk Kim
2024-10-29 17:18 ` Bart Van Assche
2024-10-30 5:42 ` Christoph Hellwig
2024-10-29 15:24 ` [PATCHv10 0/9] write hints with nvme fdp, scsi streams Christoph Hellwig
[not found] ` <20241029151922.459139-9-kbusch@meta.com>
2024-10-30 0:24 ` [PATCHv10 8/9] nvme: enable FDP support Chaitanya Kulkarni
2024-11-05 15:50 ` [PATCHv10 0/9] write hints with nvme fdp, scsi streams Christoph Hellwig
2024-11-06 18:36 ` Keith Busch
2024-11-07 20:36 ` Keith Busch
2024-11-08 14:18 ` Christoph Hellwig
2024-11-08 15:51 ` Keith Busch
2024-11-08 16:54 ` Matthew Wilcox
2024-11-08 17:43 ` Javier Gonzalez
2024-11-08 18:51 ` Bart Van Assche
2024-11-11 9:31 ` Javier Gonzalez
2024-11-11 17:45 ` Bart Van Assche
2024-11-12 13:52 ` Nitesh Shetty
2024-11-19 2:03 ` Martin K. Petersen
2024-11-25 23:21 ` Bart Van Assche
2024-11-27 2:54 ` Martin K. Petersen
2024-11-27 18:42 ` Bart Van Assche
2024-11-27 20:14 ` Martin K. Petersen
2024-11-27 21:06 ` Bart Van Assche
2024-11-28 2:09 ` Martin K. Petersen
2024-11-28 8:51 ` Damien Le Moal
2024-11-29 6:19 ` Christoph Hellwig
2024-11-29 6:23 ` Damien Le Moal
2024-11-28 3:24 ` Christoph Hellwig
2024-11-28 15:21 ` Keith Busch
2024-11-28 16:40 ` Christoph Hellwig
2024-12-05 8:03 ` Nitesh Shetty
2024-12-05 20:37 ` Martin K. Petersen
2024-12-10 0:58 ` Bart Van Assche
2024-12-10 2:20 ` Martin K. Petersen
2024-12-10 9:53 ` Nitesh Shetty
2024-12-10 21:58 ` Bart Van Assche
2024-12-10 19:41 ` Bart Van Assche
2024-12-11 9:36 ` Nitesh Shetty
2024-12-11 17:27 ` Bart Van Assche
2024-12-11 19:38 ` Martin K. Petersen
2024-12-10 7:12 ` Christoph Hellwig
2024-12-10 8:05 ` Johannes Thumshirn
2024-12-10 10:58 ` hch
2024-12-10 19:21 ` Bart Van Assche
2024-12-11 4:07 ` Damien Le Moal
2024-12-11 21:06 ` Bart Van Assche
2024-12-11 21:21 ` Jaegeuk Kim [this message]
2024-12-11 19:41 ` Martin K. Petersen
2024-12-09 22:13 ` Bart Van Assche
2024-12-09 23:13 ` Damien Le Moal
2024-12-09 23:31 ` Matthew Wilcox
2024-12-10 0:22 ` Bart Van Assche
2024-11-11 6:51 ` Christoph Hellwig
2024-11-11 9:30 ` Javier Gonzalez
2024-11-11 9:37 ` Johannes Thumshirn
2024-11-11 9:41 ` Javier Gonzalez
2024-11-11 9:42 ` hch
2024-11-11 9:43 ` Johannes Thumshirn
2024-11-11 10:37 ` Javier Gonzalez
2024-11-11 6:49 ` Christoph Hellwig
2024-11-11 6:48 ` Christoph Hellwig
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