linux-kernel - Re: [PATCH v1 2/8] block: make 'struct bvec_iter' not depend on CONFIG

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CACVXFVNtphY8bWrdMKcR7jYn5hD=H5H6jXrY111K0kZ8jJQHWw@mail.gmail.com>
Date:	Thu, 31 Mar 2016 09:02:59 +0800
From:	Ming Lei <ming.lei@...onical.com>
To:	Christoph Hellwig <hch@...radead.org>
Cc:	Jens Axboe <axboe@...com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-block@...r.kernel.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 v1 2/8] block: make 'struct bvec_iter' not depend on CONFIG_BLOCK

On Thu, Mar 31, 2016 at 1:19 AM, Christoph Hellwig <hch@...radead.org> wrote:
> On Thu, Mar 31, 2016 at 12:17:11AM +0800, Ming Lei wrote:
>> We will use bvec iterator to implement iterate_bvec(): lib/iov_iter.c.
>>
>> Reviewed-by: Christoph Hellwig <hch@....de>
>> Signed-off-by: Ming Lei <ming.lei@...onical.com>
>> ---
>>  include/linux/blk_types.h | 4 ++--
>>  1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
>> index 86a38ea..fd8527b 100644
>> --- a/include/linux/blk_types.h
>> +++ b/include/linux/blk_types.h
>> @@ -26,8 +26,6 @@ struct bio_vec {
>>       unsigned int    bv_offset;
>>  };
>>
>> -#ifdef CONFIG_BLOCK
>> -
>>  struct bvec_iter {
>>       sector_t                bi_sector;      /* device address in 512 byte
>>                                                  sectors */
>> @@ -39,6 +37,8 @@ struct bvec_iter {
>>                                                  current bvec */
>>  };
>
> I didn't catch this earlier, but shouldn't this also move to
> bvec_iter.h? Or maybe just create a linux/bvec.h for the bvec, bvec_iter
> and bvec iter macros given that those are the types used outside the
> block layer as well.

That way may cause trouble to blk_type.h because it needs bvec_iter,
then looks not good to always include bvec_iter.h into blk_type.h.

Thanks,
Ming