From mboxrd@z Thu Jan  1 00:00:00 1970
From: "J. R. Okajima" <hooanon05@yahoo.co.jp>
Subject: Re: [PATCH] fs: Work around NFS wreckage
Date: Fri, 14 Jan 2011 10:30:44 +0900
Message-ID: <6610.1294968644@jrobl>
References: <alpine.LFD.2.00.1101131436070.2678@localhost6.localdomain6> <8952.1294927845@jrobl> <20110113151736.GW24920@pengutronix.de>
Cc: Thomas Gleixner <tglx@linutronix.de>,
	Nick Piggin <npiggin@kernel.dk>,
	LKML <linux-kernel@vger.kernel.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	linux-fsdevel@vger.kernel.org,
	"Ramirez Luna, Omar" <omar.ramirez@ti.com>
To: Uwe =?iso-8859-1?Q?Kleine-K=F6nig?=
	<u.kleine-koenig@pengutronix.de>
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Uwe Kleine-Knig:
> > With this patch, can you unmount it cleanly?
> > It skips incrementing d_count for both dentries.
> > Do we need at least one?
> If you tell me how to test that, I volunteer to try.
> Something involving pivot_root?

For example,
# mount host:/dir /nfs
# chroot /nfs
# umount /nfs

It is ok if /nfs is empty.


J. R. Okajima