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From: David Sterba <dsterba@suse.cz>
To: Christoph Hellwig <hch@lst.de>
Cc: Chris Mason <clm@fb.com>, Josef Bacik <josef@toxicpanda.com>,
	David Sterba <dsterba@suse.com>,
	"Darrick J. Wong" <djwong@kernel.org>,
	linux-btrfs@vger.kernel.org, linux-xfs@vger.kernel.org,
	linux-fsdevel@vger.kernel.org
Subject: Re: reduce memory allocation in the btrfs direct I/O path
Date: Thu, 5 May 2022 17:55:29 +0200	[thread overview]
Message-ID: <20220505155529.GY18596@suse.cz> (raw)
In-Reply-To: <20220504162342.573651-1-hch@lst.de>

On Wed, May 04, 2022 at 09:23:37AM -0700, Christoph Hellwig wrote:
> Hi all,
> 
> this series adds two minor improvements to iomap that allow btrfs
> to avoid a memory allocation per read/write system call and another
> one per submitted bio.  I also have at last two other pending uses
> for the iomap functionality later on, so they are not really btrfs
> specific either.

The series is reasonably short so I'd like to add it to 5.20 queue,
provided that the iomap patches get acked by Darrick. Any fixups I'd
rather fold into my local branch, no need to resend unless there are
significant updates.

  parent reply	other threads:[~2022-05-05 15:59 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-04 16:23 reduce memory allocation in the btrfs direct I/O path Christoph Hellwig
2022-05-04 16:23 ` [PATCH 1/5] iomap: allow the file system to provide a bio_set for direct I/O Christoph Hellwig
2022-05-05 15:38   ` Darrick J. Wong
2022-05-04 16:23 ` [PATCH 2/5] iomap: add per-iomap_iter private data Christoph Hellwig
2022-05-05  8:06   ` Nikolay Borisov
2022-05-05 15:06     ` Christoph Hellwig
2022-05-05 15:41   ` Darrick J. Wong
2022-05-05 15:45     ` Christoph Hellwig
2022-05-05 16:32       ` Darrick J. Wong
2022-05-05 18:15         ` Christoph Hellwig
2022-05-05 18:18           ` Darrick J. Wong
2022-05-04 16:23 ` [PATCH 3/5] btrfs: add a btrfs_dio_rw wrapper Christoph Hellwig
2022-05-04 16:23 ` [PATCH 4/5] btrfs: allocate dio_data on stack Christoph Hellwig
2022-05-04 16:23 ` [PATCH 5/5] btrfs: allocate the btrfs_dio_private as part of the iomap dio bio Christoph Hellwig
2022-05-05  8:12   ` Nikolay Borisov
2022-05-05 15:07     ` Christoph Hellwig
2022-05-05 15:20       ` David Sterba
2022-05-05 15:52   ` David Sterba
2022-05-05  8:33 ` reduce memory allocation in the btrfs direct I/O path Nikolay Borisov
2022-05-05 15:55 ` David Sterba [this message]
2022-05-06 17:18   ` Darrick J. Wong
2022-05-07  5:26     ` Christoph Hellwig
2022-05-09 18:46       ` David Sterba
2022-05-10  3:33         ` Darrick J. Wong

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