Linux RAID subsystem development
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From: Yufen Yu <yuyufen@huawei.com>
To: Song Liu <song@kernel.org>
Cc: linux-raid <linux-raid@vger.kernel.org>,
	NeilBrown <neilb@suse.com>,
	Guoqing Jiang <guoqing.jiang@cloud.ionos.com>,
	Coly Li <colyli@suse.de>, Xiao Ni <xni@redhat.com>,
	Hou Tao <houtao1@huawei.com>
Subject: Re: [PATCH v3 01/11] md/raid5: add CONFIG_MD_RAID456_STRIPE_SHIFT to set STRIPE_SIZE
Date: Fri, 29 May 2020 16:42:58 +0800	[thread overview]
Message-ID: <7eb45e9f-c99c-cb78-9362-8f1b7513292f@huawei.com> (raw)
In-Reply-To: <CAPhsuW7JLcWDEwEcN-6c+NHhMD1qrPtPNPa-k8y9SX3bVX_FzA@mail.gmail.com>



On 2020/5/28 22:23, Song Liu wrote:
> On Wed, May 27, 2020 at 6:20 AM Yufen Yu <yuyufen@huawei.com> wrote:
>>
> [...]
>> diff --git a/drivers/md/raid5.h b/drivers/md/raid5.h
>> index f90e0704bed9..b25f107dafc7 100644
>> --- a/drivers/md/raid5.h
>> +++ b/drivers/md/raid5.h
>> @@ -472,7 +472,9 @@ struct disk_info {
>>    */
>>
>>   #define NR_STRIPES             256
>> -#define STRIPE_SIZE            PAGE_SIZE
>> +#define CONFIG_STRIPE_SIZE     (CONFIG_MD_RAID456_STRIPE_SHIFT << 9)
>> +#define STRIPE_SIZE            \
>> +       (CONFIG_STRIPE_SIZE > PAGE_SIZE ? PAGE_SIZE : CONFIG_STRIPE_SIZE)
>>   #define STRIPE_SHIFT           (PAGE_SHIFT - 9)
> 
> I think we also need to update STRIPE_SHIFT.
> 
Yeah, I forgot to update it. Thanks for catching this.

Thanks,
Yufen

  reply	other threads:[~2020-05-29  8:42 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-27 13:19 [PATCH v3 00/11] md/raid5: set STRIPE_SIZE as a configurable value Yufen Yu
2020-05-27 13:19 ` [PATCH v3 01/11] md/raid5: add CONFIG_MD_RAID456_STRIPE_SHIFT to set STRIPE_SIZE Yufen Yu
2020-05-27 13:54   ` Guoqing Jiang
2020-05-27 23:30     ` John Stoffel
2020-05-28  6:17     ` Yufen Yu
2020-05-27 15:16   ` Xiao Ni
2020-05-28  6:29     ` Yufen Yu
2020-05-27 20:21   ` kbuild test robot
2020-05-28 14:23   ` Song Liu
2020-05-29  8:42     ` Yufen Yu [this message]
2020-05-27 13:19 ` [PATCH v3 02/11] md/raid5: add a member of r5pages for struct stripe_head Yufen Yu
2020-05-27 13:19 ` [PATCH v3 03/11] md/raid5: allocate and free pages of r5pages Yufen Yu
2020-05-27 13:19 ` [PATCH v3 04/11] md/raid5: set correct page offset for bi_io_vec in ops_run_io() Yufen Yu
2020-05-27 13:19 ` [PATCH v3 05/11] md/raid5: set correct page offset for async_copy_data() Yufen Yu
2020-05-27 13:19 ` [PATCH v3 06/11] md/raid5: add new xor function to support different page offset Yufen Yu
2020-05-27 13:19 ` [PATCH v3 07/11] md/raid5: add offset array in scribble buffer Yufen Yu
2020-05-27 13:19 ` [PATCH v3 08/11] md/raid5: compute xor with correct page offset Yufen Yu
2020-05-27 13:19 ` [PATCH v3 09/11] md/raid6: let syndrome computor support different " Yufen Yu
2020-05-27 13:19 ` [PATCH v3 10/11] md/raid6: compute syndrome with correct " Yufen Yu
2020-05-27 13:19 ` [PATCH v3 11/11] raid6test: adaptation with syndrome function Yufen Yu
2020-05-28 14:10 ` [PATCH v3 00/11] md/raid5: set STRIPE_SIZE as a configurable value Song Liu
2020-05-28 14:28   ` Song Liu
2020-05-29  9:32     ` Yufen Yu
2020-05-28 22:07 ` Guoqing Jiang
2020-05-29 11:49   ` Yufen Yu
2020-05-29 12:22     ` Guoqing Jiang
2020-05-30  2:15       ` Yufen Yu
2020-06-01 14:02         ` Guoqing Jiang
2020-06-02  6:59           ` Song Liu
2020-06-04 13:17             ` Yufen Yu

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