Re: [PATCH 01/35] lmb: prepare x86 to use lmb to replace early_res

From: Yinghai Lu
Date: Fri May 14 2010 - 12:20:44 EST


On 05/14/2010 01:09 AM, Benjamin Herrenschmidt wrote:
> On Thu, 2010-05-13 at 23:19 -0700, Yinghai wrote:
>
>>> If we expose LMB_ERROR then all lmb calls that can fail should
>>>
>> return
>>
>>> that. However, the API calls all return 0 instead. Changing that
>>>
>> means
>>
>>> fixing all callers.
>>>
>> ok will stop use LMB_ERROR out lib/lmb.c
>>
>> will go back to use -1ULL for x86 path.
>>
> No. That is not the point. Read the rest of my email !
>
> We need to -sanitize- those errors. _Maybe_ exposing LMB_ERROR is the
> right way to do so, but in that case, we need to make -all- function use
> the same error code. Right now, some fail with 0 and some with
> LMB_ERROR.
>

will check what is effects for changing all to LMB_ERROR

> You are also not responding to my other comments such as:
>
>
>>> I'm also not too happy with exposing lmb_add_region(). Why would you
>>> ever need to expose it ? Just call lmb_reserve() if you want to
>>>
>> reserve
>>
>>> something. lmb_add_region() is an internal function and has no
>>>
>> business
>>
>>> being used outside of the main lmb.c file.
>>>
in other mail. and updated version in the git dropped that
lmb_add_region exposing.

Thanks

Yinghai
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