> > +struct kswapd {
> > + struct task_struct *kswapd_task;
> > + wait_queue_head_t kswapd_wait;
> > + struct mem_cgroup *kswapd_mem;
> > + pg_data_t *kswapd_pgdat;
> > +};
> > +
> > +#define MAX_KSWAPDS MAX_NUMNODES
> > +extern struct kswapd kswapds[MAX_KSWAPDS];
>
> This is potentially very large for a static structure. Can they not be
> dynamically allocated and kept on a list? Yes, there will be a list walk
> involved if yonu need a particular structure but that looks like it's a
> rare operation at this point.
Why can't we use normal workqueue mechanism?
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