On Wed, Apr 3, 2013 at 6:43 PM, Glauber Costa <glommer@xxxxxxxxxxxxx> wrote:
> On 04/03/2013 02:11 PM, Sha Zhengju wrote:
>>> > +unsigned long
>>> > +memcg_zone_reclaimable_pages(struct mem_cgroup *memcg, struct zone *zone)
>>> > +{
>>> > + int nid = zone_to_nid(zone);
>>> > + int zid = zone_idx(zone);
>>> > + unsigned long val;
>>> > +
>>> > + val = mem_cgroup_zone_nr_lru_pages(memcg, nid, zid, LRU_ALL_FILE);
>>> > + if (do_swap_account)
>> IMHO May get_nr_swap_pages() be more appropriate here?
>>
>
> This is a per-memcg number, how would get_nr_swap_pages() help us here?
>
I meant to add get_nr_swap_pages() as the if-judgement, that is:
if (do_swap_account && get_nr_swap_pages())
....
since anon pages becomes unreclaimable if swap space is used up.
Thanks,
Sha
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