From: Trond Myklebust <trond.myklebust@fys.uio.no>
To: "Peter J. Braam" <braam@clusterfs.com>
Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org
Subject: Re: tmpfs, NFS, file handles
Date: 20 Feb 2002 20:42:50 +0100 [thread overview]
Message-ID: <shsk7t82b45.fsf@charged.uio.no> (raw)
In-Reply-To: <20020220094649.X25738@lustre.cfs> <3C73D548.648C5D64@mandrakesoft.com> <20020220122116.C28913@lustre.cfs>
In-Reply-To: <20020220122116.C28913@lustre.cfs>
>>>>> " " == Peter J Braam <braam@clusterfs.com> writes:
> Would the following also work?
> - have a 32 bit counter: set inode->i_ino to count++
That is exactly what iunique() does except that it also checks for
uniqueness and allows you to specify a minimum value. Sooner or later
your 32-bit counter will wrap round...
> - up the generation number each time the counter warps.
> Between boot cycles NFS could still get confused, that might be
> helped by setting the initial generation to the system time.
Yep. That is what the 'fat' filesystem does.
Cheers,
Trond
next prev parent reply other threads:[~2002-02-20 19:43 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-02-20 16:46 tmpfs, NFS, file handles Peter J. Braam
2002-02-20 16:56 ` Jeff Garzik
2002-02-20 19:21 ` Peter J. Braam
2002-02-20 19:42 ` Trond Myklebust [this message]
2002-02-20 22:53 ` Neil Brown
2002-02-21 4:43 ` David Chow
2002-02-21 5:04 ` Neil Brown
[not found] ` <3C790FB2.50503@rcn.com.hk>
2002-02-24 21:49 ` Neil Brown
2002-02-21 7:40 ` Christoph Rohland
-- strict thread matches above, loose matches on Subject: below --
2002-02-21 16:16 Lever, Charles
2002-02-21 22:58 ` Neil Brown
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