From: Keith Busch <[email protected]>
To: Pierre Labat <[email protected]>
Cc: Christoph Hellwig <[email protected]>, Keith Busch <[email protected]>,
"[email protected]" <[email protected]>,
"[email protected]" <[email protected]>,
"[email protected]" <[email protected]>,
"[email protected]" <[email protected]>,
"[email protected]" <[email protected]>,
"[email protected]" <[email protected]>,
"[email protected]" <[email protected]>
Subject: Re: [EXT] Re: [PATCHv11 00/10] block write streams with nvme fdp
Date: Mon, 9 Dec 2024 10:25:12 -0700 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <DS0PR08MB85414C2FDCFE1F98424C0366AB3C2@DS0PR08MB8541.namprd08.prod.outlook.com>
On Mon, Dec 09, 2024 at 05:14:16PM +0000, Pierre Labat wrote:
> I was under the impression that passing write hints via fcntl() on any
> legacy filesystem stays. The hint is attached to the inode, and the fs
> simply picks it up from there when sending it down with write related
> to that inode.
> Aka per file write hint.
>
> I am right?
Nothing is changing with respect to those write hints as a result of
this series, if that's what you mean. The driver hadn't been checking
the write hint before, and this patch set continues that pre-existing
behavior. For this series, the driver utilizes a new field:
"write_stream".
Mapping the inode write hint to an FDP stream for other filesystems
remains an open topic to follow on later.
next prev parent reply other threads:[~2024-12-09 17:25 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-06 1:52 [PATCHv11 00/10] block write streams with nvme fdp Keith Busch
2024-12-06 1:52 ` [PATCHv11 01/10] fs: add a write stream field to the kiocb Keith Busch
2024-12-06 1:53 ` [PATCHv11 02/10] io_uring: protection information enhancements Keith Busch
[not found] ` <CGME20241206095739epcas5p1ee968cb92c9d4ceb25a79ad80521601f@epcas5p1.samsung.com>
2024-12-06 9:49 ` Anuj Gupta
2024-12-06 1:53 ` [PATCHv11 03/10] io_uring: add write stream attribute Keith Busch
[not found] ` <CGME20241206100326epcas5p17d4dad663ccc6c6f40cfab98437e63f3@epcas5p1.samsung.com>
2024-12-06 9:55 ` Anuj Gupta
2024-12-06 12:44 ` Kanchan Joshi
2024-12-06 16:53 ` Keith Busch
2024-12-06 1:53 ` [PATCHv11 04/10] block: add a bi_write_stream field Keith Busch
2024-12-06 1:53 ` [PATCHv11 05/10] block: introduce max_write_streams queue limit Keith Busch
2024-12-06 1:53 ` [PATCHv11 06/10] block: introduce a write_stream_granularity " Keith Busch
2024-12-06 1:53 ` [PATCHv11 07/10] block: expose write streams for block device nodes Keith Busch
[not found] ` <CGME20241206091949epcas5p14a01e4cfe614ddd04e23b84f8f1036d5@epcas5p1.samsung.com>
2024-12-06 9:11 ` Nitesh Shetty
2024-12-06 1:53 ` [PATCHv11 08/10] nvme: add a nvme_get_log_lsi helper Keith Busch
2024-12-06 1:53 ` [PATCHv11 09/10] nvme: register fdp queue limits Keith Busch
2024-12-06 5:26 ` kernel test robot
2024-12-06 1:53 ` [PATCHv11 10/10] nvme: use fdp streams if write stream is provided Keith Busch
2024-12-06 13:18 ` kernel test robot
2024-12-06 2:18 ` [PATCHv11 00/10] block write streams with nvme fdp Keith Busch
2024-12-09 12:51 ` Christoph Hellwig
2024-12-09 15:57 ` Keith Busch
2024-12-09 17:14 ` [EXT] " Pierre Labat
2024-12-09 17:25 ` Keith Busch [this message]
2024-12-09 17:35 ` Pierre Labat
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