Re: [PATCH] Standard rules for AoE devices.

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On Tue, Dec 9, 2008 at 12:23, Ryan Thomas <ryan@xxxxxxxxxx> wrote:
> Kay Sievers wrote:
>> On Tue, Dec 9, 2008 at 04:07, Ryan Thomas <ryan@xxxxxxxxxx> wrote:
>>> Kay Sievers wrote:
>>>> On Tue, Dec 9, 2008 at 01:49, Marco d'Itri <md@xxxxxxxx> wrote:
>>>>> On Dec 09, Ryan Thomas <ryan@xxxxxxxxxx> wrote:
>>>>>
>>>>>> In the interest of standardizing udev rules, please consider the
>>>>>> following patch that adds udev rules for the ATA over Ethernet
>>>>>> character
>>>>>> and block devices.  The aoe module has been a long-time member of the
>>>>>> kernel and needs inclusion in the standard udev rules.
>>>>>
>>>>> Debian so far has used these rules which are more generic and much
>>>>> simpler. Are they incorrect in some way?
>>>>>
>>>>> # AOE character devices
>>>>> SUBSYSTEM=="aoe",               NAME="etherd/%k"
>>>>>
>>>>> SUBSYSTEM=="aoe",               MODE="0220",    GROUP="disk"
>>>>> SUBSYSTEM=="aoe", KERNEL=="err", MODE="0440",   GROUP="disk"
>>>>
>>>> That looks fine.
>>>>
>>>> I wonder why we have this comment:
>>>>  +# aoe block devices
>>>>  +SUBSYSTEM=="aoe", KERNEL=="etherd*",    NAME="%k", GROUP="disk"
>>>>
>>>> They can not be block devices if they have SUBSYSTEM=="aoe". Do the
>>>> etherd* devices belong into the subdir or not?
>>>>
>>>> We have:
>>>>  SUBSYSTEM=="aoe", NAME="etherd/%k", GROUP="disk"
>>>> in the current default rules.
>>>>
>>>> I guess doing:
>>>>  # ATA over Ethernet
>>>>  SUBSYSTEM=="aoe", NAME="etherd/%k", GROUP="disk", MODE="0220"
>>>>  SUBSYSTEM=="aoe", KERNEL=="err", MODE="0440"
>>>> would be all we need.
>>
>>> My previous patch should be backed out as you are right that it's not
>>> needed.
>>>
>>> A patch to the default rules to correct the mode on the etherd/err
>>> character
>>> device is all that is needed.
>>
>> Applied. Please check:
>>
>>  http://git.kernel.org/?p=linux/hotplug/udev.git;a=commitdiff;h=2fc635fb67dbd509f4ee532c8bf0d3885cc71989
>>
>> The block device are never moved to the subdir, they all just stay in
>> /dev, right?
>
> The block device does go in the subdir.  The kernel name for the block
> device is "etherd!eX.Y" which means that the subdir is automatically taken
> care of.

Ah, nice, so it should be fine.

The char devices should have done just the same '!' thing, then no
rule, besides the permissions would be needed. :)

Thanks,
Kay
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