Re: [PATCH 2/2] mm, vmstat: List total free blocks for each order in /proc/pagetypeinfo

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On 10/23/19 2:02 PM, Michal Hocko wrote:
> On Wed 23-10-19 13:34:23, Waiman Long wrote:
> [...]
>> @@ -1419,6 +1419,17 @@ static void pagetypeinfo_showfree_print(struct seq_file *m,
>>  		}
>>  		seq_putc(m, '\n');
>>  	}
>> +
>> +	/*
>> +	 * List total free blocks per order
>> +	 */
>> +	seq_printf(m, "Node %4d, zone %8s, total             ",
>> +		   pgdat->node_id, zone->name);
>> +	for (order = 0; order < MAX_ORDER; ++order) {
>> +		area = &(zone->free_area[order]);
>> +		seq_printf(m, "%6lu ", area->nr_free);
>> +	}
>> +	seq_putc(m, '\n');
> This is essentially duplicating /proc/buddyinfo. Do we really need that?

Yes, you are right. As the information is available elsewhere. I am fine
with dropping this.

Cheers,
Longman





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