On Tue, May 02 2017, Christoph Hellwig wrote:
>> diff --git a/include/linux/bio.h b/include/linux/bio.h
>> index d1b04b0e99cf..0975da6bebd9 100644
>> --- a/include/linux/bio.h
>> +++ b/include/linux/bio.h
>> @@ -373,8 +373,10 @@ static inline struct bio *bio_next_split(struct bio *bio, int sectors,
>> return bio_split(bio, sectors, gfp, bs);
>> }
>>
>> -extern struct bio_set *bioset_create(unsigned int, unsigned int);
>> -extern struct bio_set *bioset_create_nobvec(unsigned int, unsigned int);
>> +extern struct bio_set *bioset_create(unsigned int, unsigned int, int flags);
>> +enum {
>> + BIOSET_NEED_BVECS = BIT(0),
>> +};
>
> I really hate the BIT macro as it obsfucates what's going on.
So post a patch to remove it from the tree.
I happen to like it, but I wouldn't fight for it.
>
> Why not just
>
> BIOSET_NEED_BVECS = (1 << 0),
>
> which is a lot more intuitive.
>
> Otherwise looks fine to me:
>
> Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Thanks,
NeilBrown
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