Re: [-mm PATCH 4/9] Memory controller memory accounting (v4)

[Vaidyanathan Srinivasan]

YAMAMOTO Takashi wrote:
>> +	lock_meta_page(page);
>> +	/*
>> +	 * Check if somebody else beat us to allocating the meta_page
>> +	 */
>> +	race_mp = page_get_meta_page(page);
>> +	if (race_mp) {
>> +		kfree(mp);
>> +		mp = race_mp;
>> +		atomic_inc(&mp->ref_cnt);
>> +		res_counter_uncharge(&mem->res, 1);
>> +		goto done;
>> +	}
> 
> i think you need css_put here.

Thats correct. We do need css_put in this path.

Thanks,
Vaidy

> YAMAMOTO Takashi
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