From owner-freebsd-hackers  Sun Aug 15 19:29: 5 1999
Delivered-To: freebsd-hackers@freebsd.org
Received: from assaris.sics.se (assaris.sics.se [193.10.66.108])
	by hub.freebsd.org (Postfix) with ESMTP id 52AC314BE1
	for <hackers@FreeBSD.ORG>; Sun, 15 Aug 1999 19:29:01 -0700 (PDT)
	(envelope-from assar@sics.se)
Received: (from assar@localhost) by assaris.sics.se (8.9.3/8.7.3) id EAA07342; Mon, 16 Aug 1999 04:30:16 +0200 (CEST)
To: John Polstra <jdp@polstra.com>
Cc: hackers@FreeBSD.ORG
Subject: Re: Getting device and inode number from a vnode
References: <XFMail.990815145645.jdp@polstra.com>
Mime-Version: 1.0 (generated by tm-edit 7.68)
Content-Type: text/plain; charset=US-ASCII
From: Assar Westerlund <assar@sics.se>
Date: 16 Aug 1999 04:30:15 +0200
In-Reply-To: John Polstra's message of "Sun, 15 Aug 1999 14:56:45 -0700 (PDT)"
Message-ID: <5lhfm0lao7.fsf@assaris.sics.se>
Lines: 17
X-Mailer: Gnus v5.5/Emacs 19.34
Sender: owner-freebsd-hackers@FreeBSD.ORG
Precedence: bulk
X-Loop: FreeBSD.ORG

John Polstra <jdp@polstra.com> writes:
> 1. I have a pointer to a vnode and I want to get the corresponding
> dev_t and inode number.  Is there a non-sleazy way to do that other
> than calling vn_stat?

I think you just want to call VOP_GETATTR(vp, vap, cred, proc) and
then look at vap->va_fsid and vap->va_fileid.

> 2. The first action of vn_stat is to call VOP_GETATTR.  VOP_GETATTR(9)
> says, "The file should not be locked on entry."  But when stat calls
> vn_stat, the vnode is locked.  Which is correct -- or doesn't it
> matter?

According to vnode_if.src getattr shouldn't change the locked status
of a vnode.

/assar


To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-hackers" in the body of the message