linux-kernel - Re: [PATCH] fs: Work around NFS wreckage

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Date:	Fri, 14 Jan 2011 10:30:44 +0900
From:	"J. R. Okajima" <hooanon05@...oo.co.jp>
To:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Nick Piggin <npiggin@...nel.dk>,
	LKML <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-fsdevel@...r.kernel.org,
	"Ramirez Luna, Omar" <omar.ramirez@...com>
Subject: Re: [PATCH] fs: Work around NFS wreckage


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
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