linux-kernel - Re: How Linux /proc filesystem convert a fd to the actual pathname?

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Date:	Tue, 21 Aug 2007 14:03:58 +0800
From:	"Kevin Hao" <haokexin@...il.com>
To:	"Xin Zhao" <uszhaoxin@...il.com>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>
Subject: Re: How Linux /proc filesystem convert a fd to the actual pathname?

> I am curious how Linux convert an fd to the pathname?  Does it
> recursively walk back from current dentry to the root?
Using d_path.
> Can someone point me to the right place in the kernel where this
> functionality is implemented?
do_proc_readlink may be the function you want.
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