netdev - Re: [PATCH 01/23] block: factor out a bvec_set

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Message-ID: <3347557.1675074816@warthog.procyon.org.uk>
Date:   Mon, 30 Jan 2023 10:33:36 +0000
From:   David Howells <dhowells@...hat.com>
To:     Christoph Hellwig <hch@....de>
Cc:     dhowells@...hat.com, Jens Axboe <axboe@...nel.dk>,
        Ilya Dryomov <idryomov@...il.com>,
        "Michael S. Tsirkin" <mst@...hat.com>,
        Jason Wang <jasowang@...hat.com>,
        Minchan Kim <minchan@...nel.org>,
        Sergey Senozhatsky <senozhatsky@...omium.org>,
        Keith Busch <kbusch@...nel.org>,
        Sagi Grimberg <sagi@...mberg.me>,
        Chaitanya Kulkarni <kch@...dia.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Marc Dionne <marc.dionne@...istor.com>,
        Xiubo Li <xiubli@...hat.com>, Steve French <sfrench@...ba.org>,
        Trond Myklebust <trond.myklebust@...merspace.com>,
        Anna Schumaker <anna@...nel.org>,
        Mike Marshall <hubcap@...ibond.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
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Subject: Re: [PATCH 01/23] block: factor out a bvec_set_page helper

Christoph Hellwig <hch@....de> wrote:

> +static inline void bvec_set_page(struct bio_vec *bv, struct page *page,
> +		unsigned int len, unsigned int offset)

Could you swap len and offset around?  It reads better offset first.  You move
offset into the page and then do something with len bytes.

David