[oe] invalidating udev cache, how?

[Tom Rini]

On Tue, Mar 03, 2009 at 08:24:44AM +0100, Koen Kooi wrote:
> On 03-03-09 06:11, Denys Dmytriyenko wrote:
>> On Thu, Dec 04, 2008 at 06:41:50PM +0100, Koen Kooi wrote:
>>> On 04-12-08 18:09, Mike (mwester) wrote:
>>>> Mike (mwester) wrote:
>>>>
>>>>> A slight improvement would be to make the dev.tar file dependent upon
>>>>> the bootargs; i.e. invalidate /etc/dev.tar file if the boot command line
>>>>> doesn't match the current command line.  This could be a very fast
>>>>> operation, just "cmp /proc/cmdline /etc/dev_cmdline" or similar.
>>>> As I consider this further, we could actually just save and compare
>>>> /proc/atags if that's present on the device in question (falling back to
>>>> /proc/cmdline if not present).  That would catch *any* changes passed in
>>>> to the kernel via the bootloader.
>>>>
>>>> Flashing a new kernel would seem to be another logical place to
>>>> invalidate the cache, so adding a comparison of "uname -rv" would be a
>>>> reasonable way to catch that.
>>> That should indeed take care of bootargs and kernel version changes. I'm
>>> still tempted to add option 2) to all that :)
>>
>> Sorry for bringing up this old discussion. Are there any plans to implement
>> the above checks in udev?
>
> Plans yes, time no :(

Can we make sure they're optional?

-- 
Tom Rini