linux-kernel - Re: [PATCH -V18 04/13] vfs: Allow handle based open on symlinks

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Message-ID: <m3bp8xs61a.fsf@linux.vnet.ibm.com>
Date:	Fri, 20 Aug 2010 20:08:41 +0530
From:	"Aneesh Kumar K. V" <aneesh.kumar@...ux.vnet.ibm.com>
To:	Christoph Hellwig <hch@...radead.org>
Cc:	hch@...radead.org, viro@...iv.linux.org.uk, adilger@....com,
	corbet@....net, neilb@...e.de, npiggin@...e.de,
	hooanon05@...oo.co.jp, bfields@...ldses.org, miklos@...redi.hu,
	linux-fsdevel@...r.kernel.org, sfrench@...ibm.com,
	philippe.deniel@....FR, linux-kernel@...r.kernel.org
Subject: Re: [PATCH -V18 04/13] vfs: Allow handle based open on symlinks

On Fri, 20 Aug 2010 04:30:57 -0400, Christoph Hellwig <hch@...radead.org> wrote:
> Suddenly getting an file pointer for a symlink which could never happen
> before is a really bad idea.  Just add a proper readlink_by_handle
> system call, similar to what's done in the XFS interface.

It is not just readlink that we would need. We would require

   sys_handle_readlink, sys_handle_stat64, sys_handle_link, sys_handle_chown,
   sys_handle_setxattr, sys_handle_getxattr, sys_handle_listxattr,
   sys_handle_removexattr, sys_handle_utimes, compat_sys_handle_utimes

I have most of the changes done, so if we are ok adding all these
new syscalls i can post the patch series.

-aneesh

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