From: John Garry <john.g.garry@oracle.com>
To: Christoph Hellwig <hch@lst.de>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Christian Brauner <brauner@kernel.org>
Cc: Jan Kara <jack@suse.cz>, Chandan Babu R <chandan.babu@oracle.com>,
"Darrick J. Wong" <djwong@kernel.org>,
Hongbo Li <lihongbo22@huawei.com>,
Ryusuke Konishi <konishi.ryusuke@gmail.com>,
linux-nilfs@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-xfs@vger.kernel.org
Subject: Re: [PATCH 2/5] fs: add STATX_DIO_READ_ALIGN
Date: Wed, 8 Jan 2025 10:09:06 +0000 [thread overview]
Message-ID: <8d8039f4-77ab-47f5-bf55-f2b54ff150f8@oracle.com> (raw)
In-Reply-To: <20250108085549.1296733-3-hch@lst.de>
On 08/01/2025 08:55, Christoph Hellwig wrote:
> Add a separate dio read align field, as many out of place write
> file systems can easily do reads aligned to the device sector size,
> but require bigger alignment for writes.
>
> This is usually papered over by falling back to buffered I/O for smaller
> writes and doing read-modify-write cycles, but performance for this
> sucks, so applications benefit from knowing the actual write alignment.
>
> Signed-off-by: Christoph Hellwig<hch@lst.de>
> Reviewed-by: Jan Kara<jack@suse.cz>
> Reviewed-by: Darrick J. Wong<djwong@kernel.org>
FWIW:
Reviewed-by: John Garry <john.g.garry@oracle.com>
next prev parent reply other threads:[~2025-01-08 10:09 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-01-08 8:55 add STATX_DIO_READ_ALIGN v2 Christoph Hellwig
2025-01-08 8:55 ` [PATCH 1/5] fs: reformat the statx definition Christoph Hellwig
2025-01-08 10:08 ` John Garry
2025-01-08 8:55 ` [PATCH 2/5] fs: add STATX_DIO_READ_ALIGN Christoph Hellwig
2025-01-08 10:09 ` John Garry [this message]
2025-01-08 8:55 ` [PATCH 3/5] xfs: cleanup xfs_vn_getattr Christoph Hellwig
2025-01-08 8:55 ` [PATCH 4/5] xfs: report the correct read/write dio alignment for reflinked inodes Christoph Hellwig
2025-01-08 10:10 ` John Garry
2025-01-08 10:13 ` John Garry
2025-01-08 15:18 ` Christoph Hellwig
2025-01-08 17:20 ` Darrick J. Wong
2025-01-08 17:53 ` Eric Biggers
2025-01-09 6:25 ` Christoph Hellwig
2025-01-08 8:55 ` [PATCH 5/5] xfs: report larger dio alignment for COW inodes Christoph Hellwig
2025-01-08 10:11 ` John Garry
2025-01-08 17:25 ` Darrick J. Wong
2025-01-08 8:59 ` [PATCH] statx.2: document STATX_DIO_READ_ALIGN Christoph Hellwig
2025-01-08 17:27 ` Darrick J. Wong
-- strict thread matches above, loose matches on Subject: below --
2025-01-09 8:31 add STATX_DIO_READ_ALIGN v3 Christoph Hellwig
2025-01-09 8:31 ` [PATCH 2/5] fs: add STATX_DIO_READ_ALIGN Christoph Hellwig
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