From: mturquette@linaro.org (Mike Turquette)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] clk: Really fix deadlock with mmap_sem
Date: Fri, 12 Dec 2014 15:24:16 -0800 [thread overview]
Message-ID: <20141212232416.20398.58297@quantum> (raw)
In-Reply-To: <20141212230543.GX11285@n2100.arm.linux.org.uk>
Quoting Russell King - ARM Linux (2014-12-12 15:05:43)
> On Fri, Dec 12, 2014 at 03:04:16PM -0800, Stephen Boyd wrote:
> > Commit 6314b6796e3c (clk: Don't hold prepare_lock across debugfs
> > creation, 2014-09-04) forgot to update one place where we hold
> > the prepare_lock while creating debugfs directories. This means
> > we still have the chance of a deadlock that the commit was trying
> > to fix. Actually fix it by moving the debugfs creation outside
> > the prepare_lock.
> >
> > Reported-by: Russell King - ARM Linux <linux@arm.linux.org.uk>
>
> Please use "Russell King <rmk+kernel@arm.linux.org.uk>" rather than this
> address, thanks.
Applied to clk-next and fixed up the email address locally.
Regards,
Mike
>
> --
> FTTC broadband for 0.8mile line: currently at 9.5Mbps down 400kbps up
> according to speedtest.net.
WARNING: multiple messages have this Message-ID (diff)
From: Mike Turquette <mturquette@linaro.org>
To: Russell King - ARM Linux <linux@arm.linux.org.uk>,
"Stephen Boyd" <sboyd@codeaurora.org>
Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] clk: Really fix deadlock with mmap_sem
Date: Fri, 12 Dec 2014 15:24:16 -0800 [thread overview]
Message-ID: <20141212232416.20398.58297@quantum> (raw)
In-Reply-To: <20141212230543.GX11285@n2100.arm.linux.org.uk>
Quoting Russell King - ARM Linux (2014-12-12 15:05:43)
> On Fri, Dec 12, 2014 at 03:04:16PM -0800, Stephen Boyd wrote:
> > Commit 6314b6796e3c (clk: Don't hold prepare_lock across debugfs
> > creation, 2014-09-04) forgot to update one place where we hold
> > the prepare_lock while creating debugfs directories. This means
> > we still have the chance of a deadlock that the commit was trying
> > to fix. Actually fix it by moving the debugfs creation outside
> > the prepare_lock.
> >
> > Reported-by: Russell King - ARM Linux <linux@arm.linux.org.uk>
>
> Please use "Russell King <rmk+kernel@arm.linux.org.uk>" rather than this
> address, thanks.
Applied to clk-next and fixed up the email address locally.
Regards,
Mike
>
> --
> FTTC broadband for 0.8mile line: currently at 9.5Mbps down 400kbps up
> according to speedtest.net.
next prev parent reply other threads:[~2014-12-12 23:24 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-12 23:04 [PATCH] clk: Really fix deadlock with mmap_sem Stephen Boyd
2014-12-12 23:04 ` Stephen Boyd
2014-12-12 23:05 ` Russell King - ARM Linux
2014-12-12 23:05 ` Russell King - ARM Linux
2014-12-12 23:24 ` Mike Turquette [this message]
2014-12-12 23:24 ` Mike Turquette
2014-12-12 23:26 ` Russell King - ARM Linux
2014-12-12 23:26 ` Russell King - ARM Linux
2014-12-16 1:18 ` Mike Turquette
2014-12-13 0:13 ` Thomas Gleixner
2014-12-13 0:13 ` Thomas Gleixner
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