linux-kernel - Re: [RFC] free

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Message-ID: <CAMuHMdUGkVcUOH4VUXiuoa6eGVQEA+QRDEop3GrEOEWz8GeNig@mail.gmail.com>
Date:	Tue, 22 Dec 2015 09:21:14 +0100
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Al Viro <viro@...iv.linux.org.uk>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [RFC] free_pages stuff

On Tue, Dec 22, 2015 at 3:22 AM, Al Viro <viro@...iv.linux.org.uk> wrote:
>> And if the code really explicitly wants a page (or set of aligned pages)
>> for some vm reason, I suspect having the cast there isn't a bad thing. It's
>> clearly not just a random pointer allocation if the bit pattern of the
>> pointer matters.
>
> BTW, I'm not sure we don't have code that would assume that
> kmalloc(PAGE_SIZE,...) always returns something PAGE_SIZE-aligned.

Yeah, needs-to-be-PAGE_SIZE-aligned is probably one of the main
reasons of not calling kmalloc().

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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