Re: [PATCH v5 01/16] md/raid456: covert macro define of STRIPE_* as members of struct r5conf

[Yufen Yu <yuyufen@huawei.com>]

On 2020/7/6 17:09, Guoqing Jiang wrote:
> On 7/2/20 2:06 PM, Yufen Yu wrote:
>> @@ -2509,10 +2532,11 @@ static void raid5_end_read_request(struct bio * bi)
>>                */
>>               pr_info_ratelimited(
>>                   "md/raid:%s: read error corrected (%lu sectors at %llu on %s)\n",
>> -                mdname(conf->mddev), STRIPE_SECTORS,
>> +                mdname(conf->mddev),
>> +                conf->stripe_sectors,
> 
> The conf->stripe_sectors is printed with %lu format.
> 
>> ot allow a suitable chunk size */
>>           return ERR_PTR(-EINVAL);
>> diff --git a/drivers/md/raid5.h b/drivers/md/raid5.h
>> index f90e0704bed9..e36cf71e8465 100644
>> --- a/drivers/md/raid5.h
>> +++ b/drivers/md/raid5.h
>> @@ -472,32 +472,12 @@ struct disk_info {
>>    */
>>   #define NR_STRIPES        256
>> -#define STRIPE_SIZE        PAGE_SIZE
>> -#define STRIPE_SHIFT        (PAGE_SHIFT - 9)
>> -#define STRIPE_SECTORS        (STRIPE_SIZE>>9)
>>   #define    IO_THRESHOLD        1
>>   #define BYPASS_THRESHOLD    1
>>   #define NR_HASH            (PAGE_SIZE / sizeof(struct hlist_head))
>>   #define HASH_MASK        (NR_HASH - 1)
>>   #define MAX_STRIPE_BATCH    8
> 
> [...]
> 
>>     return NULL;
>> -}
>> -
>>   /* NOTE NR_STRIPE_HASH_LOCKS must remain below 64.
>>    * This is because we sometimes take all the spinlocks
>>    * and creating that much locking depth can cause
>> @@ -574,6 +554,9 @@ struct r5conf {
>>       int            raid_disks;
>>       int            max_nr_stripes;
>>       int            min_nr_stripes;
>> +    unsigned int    stripe_size;
>> +    unsigned int    stripe_shift;
>> +    unsigned int    stripe_sectors;
> 
> So you need to define it with "unsigned long".

Yes, I will revise it.

Thanks,
Yufen