Re: [PATCH 13/17] md: raid1: use bio_segments_all()

[Johannes Thumshirn]

On 02/16/2017 12:45 PM, Ming Lei wrote:
> @@ -998,7 +998,8 @@ static void alloc_behind_pages(struct bio *bio, struct r1bio *r1_bio)
>  {
>  	int i;
>  	struct bio_vec *bvec;
> -	struct bio_vec *bvecs = kzalloc(bio->bi_vcnt * sizeof(struct bio_vec),
> +	unsigned vcnt = bio_segments_all(bio);
> +	struct bio_vec *bvecs = kzalloc(vcnt * sizeof(struct bio_vec),
>  					GFP_NOIO);

Maybe use kcalloc() instead of kzalloc() with a multiplication.

Byte,
	Johannes
-- 
Johannes Thumshirn                                          Storage
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