linux-kernel - Re: [PATCH 3/17] afs: convert afs_dir_get_page to read_kmap

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Message-ID: <5c49b0ed0704121123x341d10afxfdf6930b4b26417b@mail.gmail.com>
Date:	Thu, 12 Apr 2007 11:23:03 -0700
From:	"Nate Diller" <nate.diller@...il.com>
To:	"David Howells" <dhowells@...hat.com>
Cc:	"Andrew Morton" <akpm@...l.org>,
	"Alexander Viro" <viro@...iv.linux.org.uk>,
	"Christoph Hellwig" <hch@...radead.org>,
	"Roman Zippel" <zippel@...ux-m68k.org>,
	"Mikulas Patocka" <mikulas@...ax.karlin.mff.cuni.cz>,
	"David Woodhouse" <dwmw2@...radead.org>,
	"Dave Kleikamp" <shaggy@...tin.ibm.com>,
	"Anton Altaparmakov" <aia21@...tab.net>,
	"Evgeniy Dushistov" <dushistov@...l.ru>,
	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	reiserfs-dev@...esys.com
Subject: Re: [PATCH 3/17] afs: convert afs_dir_get_page to read_kmap_page

On 4/12/07, David Howells <dhowells@...hat.com> wrote:
> Nate Diller <nate.diller@...il.com> wrote:
>
> > -static struct page *afs_dir_get_page(struct inode *dir, unsigned long index)
>
> NAK.  This conflicts with my AFS security patches, and eliminates any way of
> passing the key through to readpage().

Hmmm you're right.  Is your security work going into the next -mm?  If
so, I'll just re-base this cleanup patch on that ... at the very least
I want to get rid of afs_dir_put_page().  Also, did you consider
passing the key pointer directly and modifying the readpage actor to
simply cast the pointer back, like read_mapping_page(mapping, page,
(struct file *)key)?  It seems like a waste to allocate a whole file
struct on the stack just for the ->private field.

Andrew in the mean time just disregard this patch.

NATE
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