linux-kernel - Re: [PATCH] kbuild: Do not write to builddir in modules

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Message-ID: <4E1D6396.1070200@suse.cz>
Date:	Wed, 13 Jul 2011 11:21:26 +0200
From:	Michal Marek <mmarek@...e.cz>
To:	Américo Wang <xiyou.wangcong@...il.com>
Cc:	Christian Kujau <lists@...dbynature.de>,
	linux-kernel@...r.kernel.org, linux-kbuild@...r.kernel.org
Subject: Re: [PATCH] kbuild: Do not write to builddir in modules_install

On 13.7.2011 03:05, Américo Wang wrote:
> On Tue, Jul 12, 2011 at 7:39 PM, Michal Marek<mmarek@...e.cz>  wrote:
>> Let depmod.sh create a temporary directory in /tmp instead of writing to
>> the build directory as root. The mktemp utility should be available on
>> any recent system (and there is already scripts/gen_initramfs_list.sh
>> relying on it).
>>
>
> Hmm, why not use $objtree/.tmp_depmod?

That's how it was done before and it's broken. make modules_install is 
usually ran as root and there is no guarantee that root has write access 
to the build directory (it can be on nfs).

Michal
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