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

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Message-ID: <CAM_iQpUoLwar3wYUe-3i5tgSB4e9HF__QKSht2yxVYP_MmUqyQ@mail.gmail.com>
Date:	Wed, 13 Jul 2011 19:22:18 +0800
From:	Américo Wang <xiyou.wangcong@...il.com>
To:	Michal Marek <mmarek@...e.cz>
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 Wed, Jul 13, 2011 at 5:21 PM, Michal Marek <mmarek@...e.cz> wrote:
> 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).

Hmm, this is reasonable. Then I am fine with this patch.

Thanks for explanation!
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