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From: Christoph Hellwig <[email protected]>
To: Kanchan Joshi <[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], Keith Busch <[email protected]>
Subject: Re: [PATCHv11 0/9] write hints with nvme fdp and scsi streams
Date: Tue, 12 Nov 2024 14:34:39 +0100	[thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>

On Tue, Nov 12, 2024 at 06:56:25PM +0530, Kanchan Joshi wrote:
> IMO, passthrough propagation of hints/streams should continue to remain 
> the default behavior as it applies on multiple filesystems. And more 
> active placement by FS should rather be enabled by some opt in (e.g., 
> mount option). Such opt in will anyway be needed for other reasons (like 
> regression avoidance on a broken device).

I feel like banging my head against the wall.  No, passing through write
streams is simply not acceptable without the file system being in
control.  I've said and explained this in detail about a dozend times
and the file system actually needing to do data separation for it's own
purpose doesn't go away by ignoring it.


  reply	other threads:[~2024-11-12 13:34 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-11-08 19:36 [PATCHv11 0/9] write hints with nvme fdp and scsi streams Keith Busch
2024-11-08 19:36 ` [PATCHv11 1/9] block: use generic u16 for write hints Keith Busch
2024-11-08 19:36 ` [PATCHv11 2/9] block: introduce max_write_hints queue limit Keith Busch
2024-11-08 19:36 ` [PATCHv11 3/9] statx: add write hint information Keith Busch
2024-11-08 19:36 ` [PATCHv11 4/9] block: allow ability to limit partition write hints Keith Busch
2024-11-08 19:36 ` [PATCHv11 5/9] block, fs: add write hint to kiocb Keith Busch
2024-11-08 19:36 ` [PATCHv11 6/9] io_uring: enable per-io hinting capability Keith Busch
2024-11-08 19:36 ` [PATCHv11 7/9] block: export placement hint feature Keith Busch
2024-11-11 10:29 ` [PATCHv11 0/9] write hints with nvme fdp and scsi streams Christoph Hellwig
2024-11-11 16:27   ` Keith Busch
2024-11-11 16:34     ` Christoph Hellwig
2024-11-12 13:26   ` Kanchan Joshi
2024-11-12 13:34     ` Christoph Hellwig [this message]
2024-11-12 14:25       ` Keith Busch
2024-11-12 16:50         ` Christoph Hellwig
2024-11-12 17:19           ` Christoph Hellwig
2024-11-12 18:18         ` [EXT] " Pierre Labat
2024-11-13  4:47           ` Christoph Hellwig
2024-11-13 23:51             ` Dave Chinner
2024-11-14  3:09               ` Martin K. Petersen
2024-11-14  6:07               ` Christoph Hellwig
2024-11-15 16:28                 ` Keith Busch
2024-11-15 16:53                   ` Christoph Hellwig
2024-11-18 23:37                     ` Keith Busch
2024-11-19  7:15                       ` Christoph Hellwig
2024-11-20 17:21                         ` Darrick J. Wong
2024-11-20 18:11                           ` Keith Busch
2024-11-21  7:17                             ` Christoph Hellwig

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