linux-kernel - Re: [PATCH -V14 04/11] vfs: Allow handle based open on symlinks

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Date:	Thu, 8 Jul 2010 01:23:03 +1000
From:	Nick Piggin <npiggin@...e.de>
To:	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
Cc:	hch@...radead.org, viro@...iv.linux.org.uk, adilger@....com,
	corbet@....net, serue@...ibm.com, neilb@...e.de,
	hooanon05@...oo.co.jp, bfields@...ldses.org,
	linux-fsdevel@...r.kernel.org, sfrench@...ibm.com,
	philippe.deniel@....FR, linux-kernel@...r.kernel.org
Subject: Re: [PATCH -V14 04/11] vfs: Allow handle based open on symlinks

On Tue, Jun 15, 2010 at 10:42:54PM +0530, Aneesh Kumar K.V wrote:
> The patch update may_open to allow handle based open on symlinks.
> The file handle based API use file descritor returned from open_by_handle_at
> to do different file system operations. To find the link target name we
> need to get a file descriptor on symlinks.

This is a pretty big change, isn't it? Have you looked through vfs to
ensure this is actually OK? I was just looking at remount,ro code, for
example, and it seems to assume only writable open files on ISREG
files.

Is this restricted to RDONLY? Really, it should be O_NONE...


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