Re: [PATCH 5/6] scsi: use 64-bit value for 'max_luns'

From: Rusty Russell
Date: Tue Jul 08 2014 - 20:35:58 EST


Christoph Hellwig <hch@xxxxxxxxxxxxx> writes:
> On Tue, Jun 03, 2014 at 10:58:56AM +0200, Hannes Reinecke wrote:
>> Now that we're using 64-bit LUNs internally we need to increase
>> the size of max_luns to 64 bits, too.
>>
>> Signed-off-by: Hannes Reinecke <hare@xxxxxxx>
>> Reviewed-by: Christoph Hellwig <hch@xxxxxxxxxxxxx>
>> Reviewed-by: Ewan Milne <emilne@xxxxxxxxxx>
>
> I just noticed that this has changes to the module param code.
> These should be split into a separate patch and be ACKed by the modules
> maintainer. I'd still love to take the change through the SCSI tree to
> be able to get this into 3.17 easily.
>
> moduleparam changes below:
>
>> diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h
>> index 204a677..21e2ba6 100644
>> --- a/include/linux/moduleparam.h
>> +++ b/include/linux/moduleparam.h
>> @@ -381,6 +381,11 @@ extern int param_set_ulong(const char *val, const struct kernel_param *kp);
>> extern int param_get_ulong(char *buffer, const struct kernel_param *kp);
>> #define param_check_ulong(name, p) __param_check(name, p, unsigned long)
>>
>> +extern struct kernel_param_ops param_ops_ullong;
>> +extern int param_set_ullong(const char *val, const struct kernel_param *kp);
>> +extern int param_get_ullong(char *buffer, const struct kernel_param *kp);
>> +#define param_check_ullong(name, p) __param_check(name, p, unsigned long long)
>> +
>> extern struct kernel_param_ops param_ops_charp;
>> extern int param_set_charp(const char *val, const struct kernel_param *kp);
>> extern int param_get_charp(char *buffer, const struct kernel_param *kp);
>
>> diff --git a/kernel/params.c b/kernel/params.c
>> index b00142e..2b2a9dd 100644
>> --- a/kernel/params.c
>> +++ b/kernel/params.c
>> @@ -253,6 +253,7 @@ STANDARD_PARAM_DEF(int, int, "%i", kstrtoint);
>> STANDARD_PARAM_DEF(uint, unsigned int, "%u", kstrtouint);
>> STANDARD_PARAM_DEF(long, long, "%li", kstrtol);
>> STANDARD_PARAM_DEF(ulong, unsigned long, "%lu", kstrtoul);
>> +STANDARD_PARAM_DEF(ullong, unsigned long long, "%llu", kstrtoull);

Thanks Christoph!

Acked-by: Rusty Russell <rusty@xxxxxxxxxxxxxxx>

Cheers,
Rusty.
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