linux-kernel - Re: [PATCH 1/8] block: move bvec iterator into include/linux/bvec

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Date:	Tue, 29 Mar 2016 00:26:17 -0700
From:	Christoph Hellwig <hch@...radead.org>
To:	Ming Lei <ming.lei@...onical.com>
Cc:	Jens Axboe <axboe@...nel.dk>, linux-kernel@...r.kernel.org,
	linux-block@...r.kernel.org, Christoph Hellwig <hch@...radead.org>,
	Al Viro <viro@...iv.linux.org.uk>,
	Anton Altaparmakov <anton@...era.com>, xfs@....sgi.com,
	Dave Chinner <david@...morbit.com>, drbd-dev@...ts.linbit.com,
	Philipp Reisner <philipp.reisner@...bit.com>,
	Lars Ellenberg <lars.ellenberg@...bit.com>,
	Boaz Harrosh <boaz@...xistor.com>
Subject: Re: [PATCH 1/8] block: move bvec iterator into
 include/linux/bvec_iter.h

> --- a/include/linux/bio.h
> +++ b/include/linux/bio.h
> @@ -31,6 +31,7 @@
>  
>  /* struct bio, bio_vec and BIO_* flags are defined in blk_types.h */
>  #include <linux/blk_types.h>
> +#include <linux/bvec_iter.h>
>  
>  #define BIO_DEBUG
>  
> @@ -40,10 +41,6 @@
>  #define BIO_BUG_ON
>  #endif
>  
> -#define BIO_MAX_PAGES		256
> -#define BIO_MAX_SIZE		(BIO_MAX_PAGES << PAGE_CACHE_SHIFT)
> -#define BIO_MAX_SECTORS		(BIO_MAX_SIZE >> 9)

I see no reason why these should be moved out of bio.h.

Otherwise this looks fine to me.