From: Paul Mundt <lethal@linux-sh.org>
To: Katsuya MATSUBARA <matsu@igel.co.jp>
Cc: linux-kernel@vger.kernel.org, linuxsh-dev@lists.sourceforge.net
Subject: Re: [PATCH] sh: replace mutexes which are used in SH-4 user page copy/clear functions in 2.6.22.X
Date: Fri, 17 Aug 2007 00:32:47 +0900 [thread overview]
Message-ID: <20070816153247.GB13927@linux-sh.org> (raw)
In-Reply-To: <20070814.170816.143307233.matsu@igel.co.jp>
On Tue, Aug 14, 2007 at 05:08:16PM +0900, Katsuya MATSUBARA wrote:
> sh: replace mutexes which are used in SH-4 user page copy/clear
> functions in 2.6.22.X
>
> This patch replaces mutexes in copy_user_pages() and clear_user_pages()
> for SH-4 in 2.6.22.X. A 2.6.22.X kernel with CONFIG_PREEMPT_VOLUNTARY=y
> shows the following error because mutexes are sleepable.
>
This has already been fixed in current git by kmap_coherent(), including
reclaiming the beginning of P3 space for vmalloc.
prev parent reply other threads:[~2007-08-16 15:34 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-14 8:08 [PATCH] sh: replace mutexes which are used in SH-4 user page copy/clear functions in 2.6.22.X Katsuya MATSUBARA
2007-08-16 15:32 ` Paul Mundt [this message]
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