linux-kernel - Re: [PATCH v1 5/6] bio: add a helper calculating nr segments to alloc

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Message-ID: <20201215010023.GG632069@dread.disaster.area>
Date:   Tue, 15 Dec 2020 12:00:23 +1100
From:   Dave Chinner <david@...morbit.com>
To:     Pavel Begunkov <asml.silence@...il.com>
Cc:     linux-block@...r.kernel.org, Jens Axboe <axboe@...nel.dk>,
        Christoph Hellwig <hch@...radead.org>,
        Matthew Wilcox <willy@...radead.org>,
        Ming Lei <ming.lei@...hat.com>,
        Johannes Weiner <hannes@...xchg.org>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        "Darrick J . Wong" <darrick.wong@...cle.com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>,
        Jonathan Corbet <corbet@....net>, linux-xfs@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, io-uring@...r.kernel.org,
        linux-kernel@...r.kernel.org, target-devel@...r.kernel.org,
        linux-scsi@...r.kernel.org, linux-doc@...r.kernel.org
Subject: Re: [PATCH v1 5/6] bio: add a helper calculating nr segments to alloc

On Tue, Dec 15, 2020 at 12:20:24AM +0000, Pavel Begunkov wrote:
> A preparation patch. It adds a simple helper which abstracts out number
> of segments we're allocating for a bio from iov_iter_npages().

Preparation for what? bio_iov_vecs_to_alloc() doesn't seem to be
used outside this specific patch, so it's not clear what it's
actually needed for...

Cheers,

Dave.
-- 
Dave Chinner
david@...morbit.com