From: Christoph Hellwig <hch@lst.de>
To: Arnd Bergmann <arnd@arndb.de>
Cc: linux-kernel@vger.kernel.org, John Kacur <jkacur@redhat.com>,
Frederic Weisbecker <fweisbec@gmail.com>,
Matthew Wilcox <willy@linux.intel.com>,
Christoph Hellwig <hch@lst.de>,
Trond Myklebust <trond.myklebust@fys.uio.no>,
"J. Bruce Fields" <bfields@fieldses.org>,
Miklos Szeredi <mszeredi@suse.cz>, Ingo Molnar <mingo@redhat.com>,
linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH 2/3] Remove BKL from fs/locks.c
Date: Sun, 11 Jul 2010 00:01:10 +0200 [thread overview]
Message-ID: <20100710220110.GA13380@lst.de> (raw)
In-Reply-To: <1278798701-11171-3-git-send-email-arnd@arndb.de>
On Sat, Jul 10, 2010 at 11:51:40PM +0200, Arnd Bergmann wrote:
> From: Matthew Wilcox <willy@linux.intel.com>
>
> I've taken a patch originally written by Matthew Wilcox and
> ported it to the current version. Unfortunately, the change
> conflicts with the use of lockd, which still heavily uses
> the big kernel lock.
>
> As a workaround, I've made the behaviour configurable,
> it either uses the BKL when it's enabled or a spinlock
> when the BKL (and consequently nfs and lockd) are
> disabled.
Defintively not something we want in mainline. But keep poking
the nfs guys to sort the lockd mess out for real.
next prev parent reply other threads:[~2010-07-10 22:01 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-10 21:51 [PATCH 0/3] further BKL removal Arnd Bergmann
2010-07-10 21:51 ` [PATCH 2/3] Remove BKL from fs/locks.c Arnd Bergmann
2010-07-10 22:01 ` Christoph Hellwig [this message]
2010-07-11 10:31 ` Arnd Bergmann
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