linux-kernel - Re: [RFC PATCH -v4 00/14] fsnotify, dnotify, and inotify

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Message-ID: <20081222232125.GA25334@infradead.org>
Date:	Mon, 22 Dec 2008 18:21:25 -0500
From:	Christoph Hellwig <hch@...radead.org>
To:	"C. Scott Ananian" <cscott@...top.org>
Cc:	Al Viro <viro@...iv.linux.org.uk>, Eric Paris <eparis@...hat.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH -v4 00/14] fsnotify, dnotify, and inotify

On Mon, Dec 22, 2008 at 06:08:08PM -0500, C. Scott Ananian wrote:
> That's not correct, as /proc/self/fd/<num> and the getcwd syscall make
> clear.

No.  These take a file descriptor into account, which _does_ have a
unique path.

> struct inode has a i_dentry member, and via its d_parent links
> you can reconstruct the path, as __d_path in fs/dcache.c does.

reconstruct _a_ path inside the same filesystem, ignoring which link is
wanted, and inside which mount.

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