On 06/19/2013 03:10 PM, Andrew Morton wrote:
> On Wed, 19 Jun 2013 14:55:13 +0800 Chen Gang <gang.chen@xxxxxxxxxxx> wrote:
>
>> >
>> > 'lru' may be used without initialized, so need regressing part of the
>> > related patch.
>> >
>> > The related patch:
>> > "3abf380 mm: remove lru parameter from __lru_cache_add and lru_cache_add_lru"
>> >
>> > ...
>> >
>> > --- a/mm/vmscan.c
>> > +++ b/mm/vmscan.c
>> > @@ -595,6 +595,7 @@ redo:
>> > * unevictable page on [in]active list.
>> > * We know how to handle that.
>> > */
>> > + lru = !!TestClearPageActive(page) + page_lru_base_type(page);
>> > lru_cache_add(page);
>> > } else {
>> > /*
> That looks right. Why the heck didn't gcc-4.4.4 (at least) warn about it?
>
Sorry I don't know either, I find it by reading code, this time.
It is really necessary to continue analyzing why. In 2nd half of 2013, I
have planned to make some patches outside kernel but related with kernel
(e.g. LTP, gcc patches).
This kind of issue is a good chance for me to start in 2nd half of 2013
(start from next month).
So if no others reply for it, I will start analyzing it in the next
month, and plan to finish within a month (before 2013-07-31).
Welcome additional suggestions or completions.
Thanks.
--
Chen Gang
Asianux Corporation
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