Re: [PATCH 2/2] fs/dcache: Make negative dentries easier to be reclaimed

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On 08/28/2018 06:13 PM, Matthew Wilcox wrote:
> On Tue, Aug 28, 2018 at 01:19:40PM -0400, Waiman Long wrote:
>> @@ -134,7 +135,7 @@ bool list_lru_add(struct list_lru *lru, struct list_head *item)
>>  	spin_lock(&nlru->lock);
>>  	if (list_empty(item)) {
>>  		l = list_lru_from_kmem(nlru, item, &memcg);
>> -		list_add_tail(item, &l->list);
>> +		(add_tail ? list_add_tail : list_add)(item, &l->list);
>>  		/* Set shrinker bit if the first element was added */
>>  		if (!l->nr_items++)
>>  			memcg_set_shrinker_bit(memcg, nid,
> That's not OK.  Write it out properly, ie:
>
> 		if (add_tail)
> 			list_add_tail(item, &l->list);
> 		else
> 			list_add(item, &l->list);
>
Yes, I can rewrite it. What is the problem with the abbreviated form?

Cheers,
Longman




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