linux-kernel - Re: Where's the create() pointer?

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Message-ID: <20080119190249.GA4383@bleen.domain.actdsltmp>
Date:	Sat, 19 Jan 2008 12:02:49 -0700
From:	Justin Banks <justinb@...bone.com>
To:	Trond Myklebust <trond.myklebust@....uio.no>
Cc:	Justin Banks <justinb@...bone.com>, linux-kernel@...r.kernel.org
Subject: Re: Where's the create() pointer?

Trond Myklebust wrote
> 
> On Sat, 2008-01-19 at 08:07 -0700, Justin Banks wrote:
> > It's probably been this way for a long time, and I'm just noticing, but
> > I can't seem to find the create() (among others) pointer for NFS filesystems.
> > 
> > Specifically, If I look at sb->s_root->d_inode->i_op there's no create
> > there. How do I find it? I'm guessing that the ability to share mount
> > structures between multiple NFS mounts resulted in some kind of fake
> > superblock, but I just can't figure out where to find the functions.
> 
> Why would you want to do this in the first place?

I'm just looking at trapping new creates on NFS, and so I need to find
the pointer.

> Anyhow, to answer the question: sb->s_root is not guaranteed to be a
> real file on NFS. The real mountpoints are usually in the anonymous
> dentry list.

Okay, I'll look there, thanks.

-justinb

-- 
Justin Banks
BakBone Software
justinb@...bone.com
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