From: Johannes Thumshirn <Johannes.Thumshirn@wdc.com>
To: Damien Le Moal <Damien.LeMoal@wdc.com>,
"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
Jens Axboe <axboe@kernel.dk>
Subject: Re: [PATCH v2 8/9] null_blk: Allow controlling max_hw_sectors limit
Date: Wed, 11 Nov 2020 08:22:06 +0000 [thread overview]
Message-ID: <SN4PR0401MB359885017B4CDDE95E64C1A29BE80@SN4PR0401MB3598.namprd04.prod.outlook.com> (raw)
In-Reply-To: 20201111051648.635300-9-damien.lemoal@wdc.com
On 11/11/2020 06:17, Damien Le Moal wrote:
> Add the module option and configfs attribute max_sectors to allow
> configuring the maximum size of a command issued to a null_blk device.
> This allows exercising the block layer BIO splitting with different
> limits than the default BLK_SAFE_MAX_SECTORS. This is also useful for
> testing the zone append write path of file systems as the max_hw_sectors
> limit value is also used for the max_zone_append_sectors limit.
Oh this sounds super useful for zonefs-tests and xfstests
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
next prev parent reply other threads:[~2020-11-11 8:22 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-11 5:16 [PATCH v2 0/9] null_blk fixes, improvements and cleanup Damien Le Moal
2020-11-11 5:16 ` [PATCH v2 1/9] null_blk: Fix zone size initialization Damien Le Moal
2020-11-11 8:05 ` Christoph Hellwig
2020-11-11 8:06 ` Johannes Thumshirn
2020-11-11 5:16 ` [PATCH v2 2/9] null_blk: Fail zone append to conventional zones Damien Le Moal
2020-11-11 8:06 ` Christoph Hellwig
2020-11-11 8:07 ` Johannes Thumshirn
2020-11-11 5:16 ` [PATCH v2 3/9] null_blk: Align max_hw_sectors to blocksize Damien Le Moal
2020-11-11 8:06 ` Christoph Hellwig
2020-11-11 8:19 ` Damien Le Moal
2020-11-11 5:16 ` [PATCH v2 4/9] null_blk: improve zone locking Damien Le Moal
2020-11-11 8:11 ` Christoph Hellwig
2020-11-11 8:20 ` Damien Le Moal
2020-11-11 8:18 ` Johannes Thumshirn
2020-11-11 5:16 ` [PATCH v2 5/9] null_blk: Improve implicit zone close Damien Le Moal
2020-11-11 5:16 ` [PATCH v2 6/9] null_blk: cleanup discard handling Damien Le Moal
2020-11-11 8:13 ` Christoph Hellwig
2020-11-11 5:16 ` [PATCH v2 7/9] null_blk: discard zones on reset Damien Le Moal
2020-11-11 8:14 ` Christoph Hellwig
2020-11-11 8:19 ` Johannes Thumshirn
2020-11-11 5:16 ` [PATCH v2 8/9] null_blk: Allow controlling max_hw_sectors limit Damien Le Moal
2020-11-11 8:14 ` Christoph Hellwig
2020-11-11 8:22 ` Johannes Thumshirn [this message]
2020-11-11 8:23 ` Damien Le Moal
2020-11-11 5:16 ` [PATCH v2 9/9] null_blk: Move driver into its own directory Damien Le Moal
2020-11-11 7:52 ` Johannes Thumshirn
2020-11-11 6:04 ` [PATCH v2 0/9] null_blk fixes, improvements and cleanup Damien Le Moal
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