From: "J. Bruce Fields" <bfields@fieldses.org>
To: linux-nfs@vger.kernel.org
Subject: Re: Does NFS4 need st_gen?
Date: Wed, 19 Oct 2011 13:15:51 -0400 [thread overview]
Message-ID: <20111019171551.GA32028@fieldses.org> (raw)
In-Reply-To: <87ipnlcbg8.fsf@inspiron.ap.columbia.edu>
On Wed, Oct 19, 2011 at 10:17:43AM -0400, Nikolaus Rath wrote:
> Does NFS4 still depend on inode generation numbers? I understand that
> earlier NFS versions used file handles based on inode and generation
> number, but it seems to me that this shouldn't be required anymore with
> the (stateful) NFS4.
Yes, it's true that NFSv4 has open and close operations, but filehandles
are still used a great deal outside of that, and clients are still
allowed to assume that the same filehandle always refers to the same
object.
http://www.ietf.org/rfc/rfc3530.txt, section 4.2.1:
"If two filehandles from the same server are equal, they MUST
refer to the same file."
--b.
next prev parent reply other threads:[~2011-10-19 17:15 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-19 14:17 Does NFS4 need st_gen? Nikolaus Rath
2011-10-19 17:15 ` J. Bruce Fields [this message]
2011-10-19 19:11 ` Nikolaus Rath
2011-10-20 12:02 ` J. Bruce Fields
2011-10-20 17:21 ` Nikolaus Rath
2011-10-20 19:57 ` J. Bruce Fields
2011-10-20 20:37 ` Nikolaus Rath
2011-10-21 0:07 ` Trond Myklebust
2011-10-21 13:54 ` Nikolaus Rath
2011-10-21 16:00 ` Trond Myklebust
2011-10-21 16:09 ` Nikolaus Rath
2011-10-21 17:10 ` Trond Myklebust
2011-10-21 17:44 ` Nikolaus Rath
2011-10-22 18:47 ` Boaz Harrosh
2011-10-22 18:59 ` Boaz Harrosh
2011-10-22 20:10 ` Nikolaus Rath
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