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From: John Garry <john.g.garry@oracle.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: Theodore Ts'o <tytso@mit.edu>,
	lsf-pc@lists.linux-foundation.org, linux-fsdevel@vger.kernel.org,
	linux-mm <linux-mm@kvack.org>,
	Luis Chamberlain <mcgrof@kernel.org>,
	"Martin K. Petersen" <martin.petersen@oracle.com>,
	Matthew Wilcox <willy@infradead.org>,
	Dave Chinner <david@fromorbit.com>,
	linux-kernel@vger.kernel.org
Subject: Re: [LSF/MM/BPF TOPIC] untorn buffered writes
Date: Tue, 28 May 2024 12:09:02 +0100	[thread overview]
Message-ID: <0b65cccc-b39a-4121-ac0d-52d49c85632b@oracle.com> (raw)
In-Reply-To: <ZlW4o4O9saBw5Xjr@infradead.org>

On 28/05/2024 11:57, Christoph Hellwig wrote:
> On Tue, May 28, 2024 at 10:21:15AM +0100, John Garry wrote:
>> If so, I am not sure if a mmap interface would work for DB usecase, like
>> PostgreSQL. I can ask.
> Databases really should be using direct I/O for various reasons.  And if
> Postgres still isn't doing that we shouldn't work around that in the
> kernel.

As I understand, direct IO support for that DB is a work-in-progress, 
but if and ever it is completed I don't know.

Regardless, my plan is to work towards direct IO kernel support now.




      reply	other threads:[~2024-05-28 11:09 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-02-28  6:12 [LSF/MM/BPF TOPIC] untorn buffered writes Theodore Ts'o
2024-02-28 11:38 ` [Lsf-pc] " Amir Goldstein
2024-02-28 20:21   ` Theodore Ts'o
2024-02-28 14:11 ` Matthew Wilcox
2024-02-28 23:33   ` Theodore Ts'o
2024-02-29  1:07     ` Dave Chinner
2024-02-28 16:06 ` John Garry
2024-02-28 23:24   ` Theodore Ts'o
2024-02-29 16:28     ` John Garry
2024-02-29 21:21       ` Ritesh Harjani
2024-02-29  0:52 ` Dave Chinner
2024-03-11  8:42 ` John Garry
2024-05-15 19:54 ` John Garry
2024-05-22 21:56   ` Luis Chamberlain
2024-05-23 11:59     ` John Garry
2024-06-01  9:33       ` Theodore Ts'o
2024-06-11 15:23         ` John Garry
2024-05-23 12:59   ` Christoph Hellwig
2024-05-28  9:21     ` John Garry
2024-05-28 10:57       ` Christoph Hellwig
2024-05-28 11:09         ` John Garry [this message]

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