linux-kernel - Re: [GIT PULL] Rename page_offset() to page

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Date:   Sat, 11 Apr 2020 15:09:35 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Matthew Wilcox <willy@...radead.org>
Cc:     linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        Linux-MM <linux-mm@...ck.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [GIT PULL] Rename page_offset() to page_pos()

On Sat, Apr 11, 2020 at 3:06 PM Matthew Wilcox <willy@...radead.org> wrote:
>
> But we _have_ an offset_in_page() and it doesn't take a struct page
> argument.

.. it doesn't take a struct page argument because a struct page always
has one compile-time fixed size.

The only reason you seem to want to get the new interface is because
you want to change that fact.

So yes, you'd have to change the _existing_ offset_in_page() to take
that extra "which page" argument.

That's not confusing.

             Linus