linux-kernel - Re: [PATCH 1/9] Squashfs: move zlib decompression wrapper code into a separate file

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Message-Id: <20091207145705.cd30cae8.akpm@linux-foundation.org>
Date:	Mon, 7 Dec 2009 14:57:05 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Phillip Lougher <phillip@...gher.demon.co.uk>
Cc:	linux-embedded@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org, phillip.lougher@...il.com,
	tim.bird@...sony.com
Subject: Re: [PATCH 1/9] Squashfs: move zlib decompression wrapper code into
 a separate file

On Mon, 07 Dec 2009 02:25:08 +0000
Phillip Lougher <phillip@...gher.demon.co.uk> wrote:

> +++ b/fs/squashfs/zlib_wrapper.c
> @@ -0,0 +1,109 @@
> +/*
> + * Squashfs - a compressed read only filesystem for Linux
> + *
> + * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
> + * Phillip Lougher <phillip@...gher.demon.co.uk>
> + *
> + * This program is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU General Public License
> + * as published by the Free Software Foundation; either version 2,
> + * or (at your option) any later version.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + * GNU General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License
> + * along with this program; if not, write to the Free Software
> + * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
> + *
> + * zlib_wrapper.c
> + */
> +
> +
> +#include <linux/mutex.h>
> +#include <linux/buffer_head.h>
> +#include <linux/zlib.h>
> +
> +#include "squashfs_fs.h"
> +#include "squashfs_fs_sb.h"
> +#include "squashfs_fs_i.h"
> +#include "squashfs.h"
> +
> +int zlib_uncompress(struct squashfs_sb_info *msblk, void **buffer,
> +	struct buffer_head **bh, int b, int offset, int length, int srclength,
> +	int pages)

This isn't a very good function name.  zlib_uncompress() now becomes a
kernel-wide identifier, but it's part of squashfs, not part of zlib.

Maybe that gets fixed in a later patch.  If so, thwap me.
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