From: "J. R. Okajima" <hooanon05@yahoo.co.jp>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Nick Piggin <npiggin@kernel.dk>,
LKML <linux-kernel@vger.kernel.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
linux-fsdevel@vger.kernel.org, u.kleine-koenig@pengutronix.de,
"Ramirez Luna, Omar" <omar.ramirez@ti.com>
Subject: Re: [PATCH] fs: Work around NFS wreckage
Date: Thu, 13 Jan 2011 23:10:45 +0900 [thread overview]
Message-ID: <8952.1294927845@jrobl> (raw)
In-Reply-To: <alpine.LFD.2.00.1101131436070.2678@localhost6.localdomain6>
Thomas Gleixner:
> The dcache scalability work broke NFS root filesystems.
:::
> Check for parent equal dentry and skip the nested lock to avoid the
> deadlock. I'm sure this is the wrong fix, but at least it "works" :)
With this patch, can you unmount it cleanly?
It skips incrementing d_count for both dentries.
Do we need at least one?
J. R. Okajima
next prev parent reply other threads:[~2011-01-13 14:11 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-13 13:54 [PATCH] fs: Work around NFS wreckage Thomas Gleixner
2011-01-13 14:10 ` J. R. Okajima [this message]
2011-01-13 15:17 ` Uwe Kleine-König
2011-01-14 1:30 ` J. R. Okajima
2011-01-13 16:41 ` Thomas Gleixner
2011-01-14 1:01 ` Nick Piggin
2011-01-14 9:29 ` Thomas Gleixner
2011-01-14 9:47 ` Sedat Dilek
2011-01-14 15:47 ` Linus Torvalds
2011-01-14 16:40 ` Thomas Gleixner
2011-01-14 21:44 ` Nick Piggin
2011-01-13 14:12 ` Uwe Kleine-König
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