From: Christoph Hellwig <hch@lst.de>
To: Jens Axboe <axboe@kernel.dk>
Cc: "Christoph Hellwig" <hch@lst.de>,
"Javier González" <javier.gonz@samsung.com>,
"Keith Busch" <kbusch@kernel.org>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
"Kanchan Joshi" <joshi.k@samsung.com>,
hare@suse.de, sagi@grimberg.me, brauner@kernel.org,
viro@zeniv.linux.org.uk, jack@suse.cz, jaegeuk@kernel.org,
bcrl@kvack.org, dhowells@redhat.com, bvanassche@acm.org,
asml.silence@gmail.com, linux-nvme@lists.infradead.org,
linux-fsdevel@vger.kernel.org, io-uring@vger.kernel.org,
linux-block@vger.kernel.org, linux-aio@kvack.org,
gost.dev@samsung.com, vishak.g@samsung.com
Subject: Re: [PATCH v7 0/3] FDP and per-io hints
Date: Mon, 14 Oct 2024 08:21:25 +0200 [thread overview]
Message-ID: <20241014062125.GA21033@lst.de> (raw)
In-Reply-To: <5e9f7f1c-48fd-477f-b4ba-c94e6b50b56f@kernel.dk>
On Fri, Oct 11, 2024 at 11:08:26AM -0600, Jens Axboe wrote:
>
> I think that last argument is a straw man - for any kind of interface
> like this, we've ALWAYS just had the rule that any per-whatever
> overrides the generic setting.
And exactly that is the problem. For file systems we can't support
that sanely. So IFF you absolutely want the per-I/O hints we need
an opt in by the file operations. I've said that at least twice
in this discussion before, but as everyone likes to have political
discussions instead of technical ones no one replied to that.
next prev parent reply other threads:[~2024-10-14 6:21 UTC|newest]
Thread overview: 86+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20240930182052epcas5p37edefa7556b87c3fbb543275756ac736@epcas5p3.samsung.com>
2024-09-30 18:13 ` [PATCH v7 0/3] FDP and per-io hints Kanchan Joshi
[not found] ` <CGME20240930182056epcas5p33f823c00caadf9388b509bafcad86f3d@epcas5p3.samsung.com>
2024-09-30 18:13 ` [PATCH v7 1/3] nvme: enable FDP support Kanchan Joshi
2024-10-02 18:37 ` Bart Van Assche
2024-10-03 12:55 ` Christoph Hellwig
[not found] ` <CGME20240930182100epcas5p31a010c225f3c76aa4dc54fced32abd2a@epcas5p3.samsung.com>
2024-09-30 18:13 ` [PATCH v7 2/3] block, fs: restore kiocb based write hint processing Kanchan Joshi
[not found] ` <CGME20240930182103epcas5p4c9e91ca3cdf20e900b1425ae45fef81d@epcas5p4.samsung.com>
2024-09-30 18:13 ` [PATCH v7 3/3] io_uring: enable per-io hinting capability Kanchan Joshi
2024-10-02 14:26 ` Pavel Begunkov
2024-10-17 14:58 ` Kanchan Joshi
2024-10-02 18:29 ` Bart Van Assche
2024-10-01 9:20 ` [PATCH v7 0/3] FDP and per-io hints Christoph Hellwig
2024-10-01 15:58 ` James R. Bergsten
2024-10-01 16:18 ` Jens Axboe
2024-10-02 7:51 ` Christoph Hellwig
2024-10-02 15:03 ` Jens Axboe
2024-10-02 15:13 ` Christoph Hellwig
2024-10-02 15:17 ` Keith Busch
2024-10-02 15:19 ` Christoph Hellwig
2024-10-02 15:33 ` Keith Busch
2024-10-03 12:51 ` Christoph Hellwig
2024-10-02 15:47 ` Martin K. Petersen
2024-10-02 18:34 ` Bart Van Assche
2024-10-03 12:55 ` Christoph Hellwig
2024-10-03 21:48 ` Keith Busch
2024-10-03 22:00 ` Bart Van Assche
2024-10-03 22:12 ` Jens Axboe
2024-10-03 22:17 ` Keith Busch
2024-10-04 6:21 ` Javier González
2024-10-04 6:24 ` Christoph Hellwig
2024-10-04 6:59 ` Javier González
2024-10-04 12:32 ` Christoph Hellwig
2024-10-07 11:29 ` Javier González
2024-10-08 12:27 ` Christoph Hellwig
2024-10-03 12:54 ` Christoph Hellwig
2024-10-03 22:14 ` Jens Axboe
2024-10-04 5:31 ` Christoph Hellwig
2024-10-04 6:18 ` Javier González
2024-10-04 6:27 ` Christoph Hellwig
2024-10-04 6:52 ` Javier González
2024-10-04 12:30 ` Christoph Hellwig
2024-10-07 10:10 ` Javier González
2024-10-08 10:06 ` Hans Holmberg
2024-10-09 14:36 ` Javier Gonzalez
2024-10-10 6:40 ` Hans Holmberg
2024-10-10 7:13 ` Javier Gonzalez
2024-10-10 9:20 ` Christoph Hellwig
2024-10-10 12:22 ` Javier Gonzalez
2024-10-11 8:56 ` Christoph Hellwig
2024-10-11 12:21 ` Javier Gonzalez
2024-10-11 16:59 ` Keith Busch
2024-10-10 10:46 ` Hans Holmberg
[not found] ` <CGME20241010122734eucas1p1e20a5263a4d69db81b50b8b03608fad1@eucas1p1.samsung.com>
2024-10-10 12:27 ` Javier Gonzalez
2024-10-11 8:59 ` Christoph Hellwig
2024-10-08 12:25 ` Christoph Hellwig
2024-10-08 14:44 ` Keith Busch
2024-10-09 9:28 ` Christoph Hellwig
2024-10-09 15:06 ` Keith Busch
[not found] ` <CGME20241010070738eucas1p2057209e5f669f37ca586ad4a619289ed@eucas1p2.samsung.com>
2024-10-10 7:07 ` Javier González
2024-10-10 9:13 ` Christoph Hellwig
2024-10-10 11:59 ` Javier González
2024-10-11 9:02 ` Christoph Hellwig
2024-10-11 17:08 ` Jens Axboe
2024-10-14 6:21 ` Christoph Hellwig [this message]
2024-10-14 7:02 ` Javier Gonzalez
2024-10-14 7:47 ` Christoph Hellwig
2024-10-14 9:08 ` Javier Gonzalez
2024-10-14 11:50 ` Christoph Hellwig
2024-10-15 3:07 ` Javier Gonzalez
2024-10-15 5:30 ` Christoph Hellwig
2024-10-10 9:10 ` Christoph Hellwig
2024-10-09 16:28 ` Nitesh Shetty
2024-10-02 15:22 ` Jens Axboe
2024-10-01 16:23 ` Keith Busch
2024-10-02 7:49 ` Christoph Hellwig
2024-10-02 14:56 ` Keith Busch
2024-10-02 15:00 ` Jens Axboe
2024-10-03 0:20 ` Bart Van Assche
2024-10-15 5:50 ` Christoph Hellwig
2024-10-15 15:09 ` Keith Busch
2024-10-15 15:22 ` Christoph Hellwig
2024-10-17 14:35 ` Kanchan Joshi
2024-10-17 15:23 ` Christoph Hellwig
2024-10-17 15:44 ` Keith Busch
2024-10-17 15:46 ` Christoph Hellwig
2024-10-17 16:06 ` Keith Busch
2024-10-17 16:15 ` Bart Van Assche
2024-10-17 16:23 ` Keith Busch
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