Re: [PATCH v1 01/14] block: introduce bio_segments_all()

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To: Ming Lei <tom.leiming@xxxxxxxxx>
Subject: Re: [PATCH v1 01/14] block: introduce bio_segments_all()
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Sat, 25 Feb 2017 10:22:16 -0800
Cc: Shaohua Li <shli@xxxxxxxxxx>, Jens Axboe <axboe@xxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, linux-raid@xxxxxxxxxxxxxxx, linux-block@xxxxxxxxxxxxxxx, Christoph Hellwig <hch@xxxxxxxxxxxxx>
In-reply-to: <1487950971-1131-2-git-send-email-tom.leiming@gmail.com>
User-agent: Mutt/1.7.1 (2016-10-04)

> +static inline unsigned bio_segments_all(struct bio *bio)
> +{
> +	WARN_ON_ONCE(bio_flagged(bio, BIO_CLONED));
> +
> +	return bio->bi_vcnt;
> +}

I don't think this helpers really adds any benefit.

Follow-Ups:
- Re: [PATCH v1 01/14] block: introduce bio_segments_all()
  - From: Ming Lei

References:
- [PATCH v1 00/14] md: cleanup on direct access to bvec table
  - From: Ming Lei
- [PATCH v1 01/14] block: introduce bio_segments_all()
  - From: Ming Lei

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