Re: [PATCH v16 21/22] mm/pgdat: remove pgdat lru_lock

Alex Shi
2020-07-18T14:17:48Z

在 2020/7/18 上午5:09, Alexander Duyck 写道:
>> diff --git a/mm/page_alloc.c b/mm/page_alloc.c
>> index e028b87ce294..4d7df42b32d6 100644
>> --- a/mm/page_alloc.c
>> +++ b/mm/page_alloc.c
>> @@ -6721,7 +6721,6 @@ static void __meminit pgdat_init_internals(struct pglist_data *pgdat)
>> init_waitqueue_head(&pgdat->pfmemalloc_wait);
>>
>> pgdat_page_ext_init(pgdat);
>> - spin_lock_init(&pgdat->lru_lock);
>> lruvec_init(&pgdat->__lruvec);
>> }
>>
> This patch would probably make more sense as part of patch 18 since
> you removed all of the users of this field there.

yes, I just want to a bit of sense of ceremony to remove this huge big lock. :)