linux-kernel - Re: [PATCH v7 13/13] dm: add non power of 2 zoned target

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Message-ID: <92c922ed-cc04-6e55-9c12-81a43332b318@samsung.com>
Date:   Thu, 16 Jun 2022 12:28:44 +0200
From:   Pankaj Raghav <p.raghav@...sung.com>
To:     Randy Dunlap <rdunlap@...radead.org>, <hch@....de>,
        <snitzer@...hat.com>, <damien.lemoal@...nsource.wdc.com>,
        <axboe@...nel.dk>
CC:     <bvanassche@....org>, <linux-kernel@...r.kernel.org>,
        <jiangbo.365@...edance.com>, <hare@...e.de>, <pankydev8@...il.com>,
        <dm-devel@...hat.com>, <jonathan.derrick@...ux.dev>,
        <gost.dev@...sung.com>, <dsterba@...e.com>, <jaegeuk@...nel.org>,
        <linux-nvme@...ts.infradead.org>, <Johannes.Thumshirn@....com>,
        <linux-block@...r.kernel.org>,
        Damien Le Moal <damien.lemoal@....com>
Subject: Re: [PATCH v7 13/13] dm: add non power of 2 zoned target

On 2022-06-15 21:54, Randy Dunlap wrote:
> Hi--
> 
> On 6/15/22 03:19, Pankaj Raghav wrote:
> 
>> ---
>>  drivers/md/Kconfig                |   9 +
>>  drivers/md/Makefile               |   2 +
>>  drivers/md/dm-zone.c              |   9 +
>>  drivers/md/dm-zoned-npo2-target.c | 268 ++++++++++++++++++++++++++++++
>>  4 files changed, 288 insertions(+)
>>  create mode 100644 drivers/md/dm-zoned-npo2-target.c
>>
>> diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig
>> index 998a5cfdb..773314536 100644
>> --- a/drivers/md/Kconfig
>> +++ b/drivers/md/Kconfig
>> @@ -518,6 +518,15 @@ config DM_FLAKEY
>>  	help
>>  	 A target that intermittently fails I/O for debugging purposes.
>>  
>> +config DM_ZONED_NPO2
>> +	tristate "Zoned non power of 2 target"
> 
> 	         "Zoned non-power-of-2 target"
> 
>> +	depends on BLK_DEV_DM
>> +	depends on BLK_DEV_ZONED
>> +	help
>> +	A target that converts a zoned device with non power of 2 zone size to
> 
> 	                                           non-power-of-2 zone size to
> 
>> +	be power of 2. This is done by introducing gaps in between the zone
>> +	capacity and the power of 2 zone size.
> 
> All help text should be indented with one tab and 2 spaces
> according to Documentation/process/coding-style.rst.
> 
>> +
>>  config DM_VERITY
>>  	tristate "Verity target support"
>>  	depends on BLK_DEV_DM
> 
> [snip]
> 
>> +
>> +MODULE_DESCRIPTION(DM_NAME " non power 2 zoned target");
> 
>                                 non-power-of-2
> 
>> +MODULE_AUTHOR("Pankaj Raghav <p.raghav@...sung.com>");
>> +MODULE_LICENSE("GPL");
>> +
> 
Thanks Randy. Fixed.