linux-kernel - Re: [RFC][PATCH 11/13] dump_skip(): dump_seek() replacement taking coredump

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Message-ID: <CAMuHMdXQ6fKfy8UdsAnui+_40LYKSMBSLenNZ797RswHtYa9Xw@mail.gmail.com>
Date:	Fri, 15 Nov 2013 12:11:18 +0100
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Al Viro <viro@....linux.org.uk>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux FS Devel <linux-fsdevel@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [RFC][PATCH 11/13] dump_skip(): dump_seek() replacement taking coredump_params

Hi Al,

On Wed, Oct 9, 2013 at 2:15 AM, Al Viro <viro@....linux.org.uk> wrote:
> --- a/fs/coredump.c
> +++ b/fs/coredump.c

> @@ -714,32 +706,25 @@ int dump_emit(struct coredump_params *cprm, const void *addr, int nr)
>  }
>  EXPORT_SYMBOL(dump_emit);
>
> -int dump_seek(struct file *file, loff_t off)
> +int dump_skip(struct coredump_params *cprm, size_t nr)
>  {
> -       int ret = 1;
> -
> +       static char zeroes[PAGE_SIZE];

Do we really need this to be static?

It's at the top of my v3.12.. bloat-o-meter report:

function                                     old     new   delta
static.zeroes                                  -    4096   +4096

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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