From: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
To: Christoph Hellwig <hch@infradead.org>, Jan Kara <jack@suse.cz>
Cc: linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org
Subject: Re: [RFC 2/3] ext2: Convert ext2 regular file buffered I/O to use iomap
Date: Thu, 23 Nov 2023 01:56:21 +0530 [thread overview]
Message-ID: <87msv5r0uq.fsf@doe.com> (raw)
In-Reply-To: <ZV399sCMq+p57Yh3@infradead.org>
Christoph Hellwig <hch@infradead.org> writes:
> On Wed, Nov 22, 2023 at 01:29:46PM +0100, Jan Kara wrote:
>> writeback bit set. XFS plays the revalidation sequence counter games
>> because of this so we'd have to do something similar for ext2. Not that I'd
>> care as much about ext2 writeback performance but it should not be that
>> hard and we'll definitely need some similar solution for ext4 anyway. Can
>> you give that a try (as a followup "performance improvement" patch).
>
> Darrick has mentioned that he is looking into lifting more of the
> validation sequence counter validation into iomap.
>
> In the meantime I have a series here that at least maps multiple blocks
> inside a folio in a single go, which might be worth trying with ext2 as
> well:
>
> http://git.infradead.org/users/hch/misc.git/shortlog/refs/heads/iomap-map-multiple-blocks
Sure, thanks for providing details. I will check this.
-ritesh
next prev parent reply other threads:[~2023-11-22 20:26 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <cover.1700506526.git.ritesh.list@gmail.com>
2023-11-20 19:05 ` [RFC 1/3] ext2: Fix ki_pos update for DIO buffered-io fallback case Ritesh Harjani (IBM)
2023-11-21 4:39 ` Christoph Hellwig
2023-11-21 5:36 ` Ritesh Harjani
2023-11-22 6:51 ` Christoph Hellwig
2023-11-20 19:05 ` [RFC 2/3] ext2: Convert ext2 regular file buffered I/O to use iomap Ritesh Harjani (IBM)
2023-11-20 20:00 ` Matthew Wilcox
2023-11-21 4:44 ` Christoph Hellwig
2023-11-21 5:56 ` Ritesh Harjani
2023-11-21 6:08 ` Christoph Hellwig
2023-11-21 6:15 ` Ritesh Harjani
2023-11-22 12:29 ` Jan Kara
2023-11-22 13:11 ` Christoph Hellwig
2023-11-22 20:26 ` Ritesh Harjani [this message]
2023-11-30 3:24 ` Ritesh Harjani
2023-11-30 4:22 ` Matthew Wilcox
2023-11-30 4:37 ` Ritesh Harjani
2023-11-30 4:30 ` Christoph Hellwig
2023-11-30 5:27 ` Ritesh Harjani
2023-11-30 8:22 ` Zhang Yi
2023-11-30 7:45 ` Ritesh Harjani
2023-11-30 10:18 ` Jan Kara
2023-11-30 10:59 ` Ritesh Harjani
2023-11-30 14:08 ` Jan Kara
2023-11-30 15:50 ` Ritesh Harjani
2023-11-30 16:01 ` Jan Kara
2023-11-30 16:03 ` Matthew Wilcox
2023-12-01 23:09 ` Dave Chinner
2023-12-05 15:22 ` Ritesh Harjani
2023-12-07 8:58 ` Jan Kara
2023-11-22 22:26 ` Dave Chinner
2023-11-23 4:09 ` Darrick J. Wong
2023-11-23 7:09 ` Christoph Hellwig
2023-11-29 5:37 ` Darrick J. Wong
2023-11-29 6:32 ` Christoph Hellwig
2023-11-29 9:19 ` Dave Chinner
2023-11-23 7:02 ` Christoph Hellwig
2023-11-22 20:25 ` Ritesh Harjani
2023-11-20 19:05 ` [RFC 3/3] ext2: Enable large folio support Ritesh Harjani (IBM)
2023-11-20 20:00 ` Matthew Wilcox
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