From: Al Viro <viro@ZenIV.linux.org.uk>
To: Miklos Szeredi <miklos@szeredi.hu>
Cc: weigelt@metux.de, linux-kernel@vger.kernel.org
Subject: Re: VFS + path walktrough
Date: Mon, 5 May 2008 18:40:48 +0100 [thread overview]
Message-ID: <20080505174048.GP5882@ZenIV.linux.org.uk> (raw)
In-Reply-To: <E1Jt4Ye-0006hz-9i@pomaz-ex.szeredi.hu>
On Mon, May 05, 2008 at 07:33:00PM +0200, Miklos Szeredi wrote:
> > This is still wrong. We not just pass the pathname to filesystem (note
> > that you still need to deal with symlinks),
>
> Symlinks are easy: filesystem just needs to *stop* the resolution the
> moment it finds one.
That assumes you see types of objects as you do multi-step walk...
> > Take a look at 9P walk - it does *not* give
> > you anything resembling stat, you just get qids of intermediates.
>
> Which is exactly what's needed to populate the dentry tree, no?
No - you need inodes as well (i.e. as the absolute least you want
mode and ownership). Which is to say, you need to issue stat on
each component in such situation anyway. Not a win...
next prev parent reply other threads:[~2008-05-05 17:40 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-05 12:40 VFS + path walktrough Enrico Weigelt
2008-05-05 13:06 ` Enrico Weigelt
2008-05-05 13:13 ` Al Viro
2008-05-05 13:43 ` Enrico Weigelt
2008-05-05 15:35 ` Al Viro
2008-05-05 16:43 ` Miklos Szeredi
2008-05-05 17:03 ` Miklos Szeredi
2008-05-05 17:14 ` Al Viro
2008-05-05 17:33 ` Miklos Szeredi
2008-05-05 17:40 ` Al Viro [this message]
2008-05-05 18:03 ` Miklos Szeredi
2008-05-05 18:31 ` Miklos Szeredi
2008-05-05 20:16 ` Trond Myklebust
2008-05-05 20:35 ` Miklos Szeredi
2008-05-05 18:50 ` Enrico Weigelt
2008-05-05 18:23 ` Enrico Weigelt
2008-05-05 18:34 ` Al Viro
2008-05-05 19:02 ` Enrico Weigelt
2008-05-05 19:09 ` Al Viro
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