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Date:      16 Aug 1999 04:30:15 +0200
From:      Assar Westerlund <assar@sics.se>
To:        John Polstra <jdp@polstra.com>
Cc:        hackers@FreeBSD.ORG
Subject:   Re: Getting device and inode number from a vnode
Message-ID:  <5lhfm0lao7.fsf@assaris.sics.se>
In-Reply-To: John Polstra's message of "Sun, 15 Aug 1999 14:56:45 -0700 (PDT)"
References:  <XFMail.990815145645.jdp@polstra.com>

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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


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