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

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Message-ID: <m3r5hqjb5f.fsf@linux.vnet.ibm.com>
Date:	Mon, 23 Aug 2010 08:19:48 +0530
From:	"Aneesh Kumar K. V" <aneesh.kumar@...ux.vnet.ibm.com>
To:	Neil Brown <neilb@...e.de>,
	Andreas Dilger <andreas.dilger@...cle.com>
Cc:	Al Viro <viro@...IV.linux.org.uk>,
	Christoph Hellwig <hch@...radead.org>,
	"adilger\@sun.com" <adilger@....com>,
	"corbet\@lwn.net" <corbet@....net>,
	"npiggin\@kernel.dk" <npiggin@...nel.dk>,
	"hooanon05\@yahoo.co.jp" <hooanon05@...oo.co.jp>,
	"bfields\@fieldses.org" <bfields@...ldses.org>,
	"miklos\@szeredi.hu" <miklos@...redi.hu>,
	"linux-fsdevel\@vger.kernel.org" <linux-fsdevel@...r.kernel.org>,
	"sfrench\@us.ibm.com" <sfrench@...ibm.com>,
	"philippe.deniel\@CEA.FR" <philippe.deniel@....FR>,
	"linux-kernel\@vger.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH -V18 04/13] vfs: Allow handle based open on symlinks

On Mon, 23 Aug 2010 09:06:04 +1000, Neil Brown <neilb@...e.de> wrote:
> [[ Following this approach I would like to avoid any filehandle-specific
> syscalls altogether.
> Just use a *at syscall with AT_FILE_HANDLE for filehandle lookup, and use
> getxattr('system:linux.file_handle') to get the filehandle for a given path.
> 
> Ofcourse we would need to at *at versions of the *xattr syscalls, but that is
> probably a good idea anyway.
> ]]

sys_setxattrat would take 7 arguments.

-aneesh
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