From: Jesper Nilsson <Jesper.Nilsson@axis.com>
To: Arnd Bergmann <arnd@arndb.de>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
John Kacur <jkacur@redhat.com>,
Frederic Weisbecker <fweisbec@gmail.com>,
linux-cris-kernel <linux-cris-kernel@axis.com>
Subject: Re: [PATCH 07/12] cris: autoconvert trivial BKL users to private mutex
Date: Fri, 30 Jul 2010 19:20:05 +0200 [thread overview]
Message-ID: <20100730172005.GE9784@axis.com> (raw)
In-Reply-To: <1278883143-29035-8-git-send-email-arnd@arndb.de>
On Sun, Jul 11, 2010 at 11:18:58PM +0200, Arnd Bergmann wrote:
> All these files use the big kernel lock in a trivial
> way to serialize their private file operations,
> typically resulting from an earlier semi-automatic
> pushdown from VFS.
>
> None of these drivers appears to want to lock against
> other code, and they all use the BKL as the top-level
> lock in their file operations, meaning that there
> is no lock-order inversion problem.
>
> Consequently, we can remove the BKL completely,
> replacing it with a per-file mutex in every case.
> Using a scripted approach means we can avoid
> typos.
Thanks, added to the cris-tree.
/^JN - Jesper Nilsson
--
Jesper Nilsson -- jesper.nilsson@axis.com
next prev parent reply other threads:[~2010-07-30 17:20 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-11 21:18 [PATCH 00/12] autoconvert trivial BKL users to private mutex Arnd Bergmann
2010-07-11 21:18 ` [PATCH 01/12] staging: " Arnd Bergmann
2010-07-13 8:27 ` Martyn Welch
2010-07-13 11:46 ` Arnd Bergmann
2010-07-11 21:18 ` [PATCH 02/12] isdn: " Arnd Bergmann
2010-07-13 3:35 ` David Miller
2010-07-11 21:18 ` [PATCH 03/12] scsi: " Arnd Bergmann
2010-07-11 21:18 ` [PATCH 04/12] media: " Arnd Bergmann
2010-07-11 21:18 ` [PATCH 05/12] usb: " Arnd Bergmann
2010-07-11 21:18 ` [PATCH 06/12] net: " Arnd Bergmann
2010-07-13 3:35 ` David Miller
2010-07-11 21:18 ` [PATCH 07/12] cris: " Arnd Bergmann
2010-07-30 17:20 ` Jesper Nilsson [this message]
2010-07-11 21:18 ` [PATCH 08/12] sbus: " Arnd Bergmann
2010-07-21 6:37 ` David Miller
2010-07-11 21:19 ` [PATCH 09/12] mtd: " Arnd Bergmann
2010-07-11 21:19 ` [PATCH 10/12] mac: " Arnd Bergmann
2010-07-11 21:19 ` [PATCH 11/12] ipmi: " Arnd Bergmann
2010-07-11 21:19 ` [PATCH 12/12] drivers: " Arnd Bergmann
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