* @DAMOS_HUGEPAGE: Call ``madvise()`` for the region with MADV_HUGEPAGE.
* @DAMOS_NOHUGEPAGE: Call ``madvise()`` for the region with MADV_NOHUGEPAGE.
* @DAMOS_LRU_PRIO: Prioritize the region on its LRU lists.
+ * @DAMOS_LRU_DEPRIO: Deprioritize the region on its LRU lists.
* @DAMOS_STAT: Do nothing but count the stat.
* @NR_DAMOS_ACTIONS: Total number of DAMOS actions
*/
DAMOS_HUGEPAGE,
DAMOS_NOHUGEPAGE,
DAMOS_LRU_PRIO,
+ DAMOS_LRU_DEPRIO,
DAMOS_STAT, /* Do nothing but only record the stat */
NR_DAMOS_ACTIONS,
};
return applied * PAGE_SIZE;
}
+static unsigned long damon_pa_deactivate_pages(struct damon_region *r)
+{
+ unsigned long addr, applied = 0;
+
+ for (addr = r->ar.start; addr < r->ar.end; addr += PAGE_SIZE) {
+ struct page *page = damon_get_page(PHYS_PFN(addr));
+
+ if (!page)
+ continue;
+ deactivate_page(page);
+ put_page(page);
+ applied++;
+ }
+ return applied * PAGE_SIZE;
+}
+
static unsigned long damon_pa_apply_scheme(struct damon_ctx *ctx,
struct damon_target *t, struct damon_region *r,
struct damos *scheme)
return damon_pa_pageout(r);
case DAMOS_LRU_PRIO:
return damon_pa_mark_accessed(r);
+ case DAMOS_LRU_DEPRIO:
+ return damon_pa_deactivate_pages(r);
default:
break;
}
return damon_pageout_score(context, r, scheme);
case DAMOS_LRU_PRIO:
return damon_hot_score(context, r, scheme);
+ case DAMOS_LRU_DEPRIO:
+ return damon_pageout_score(context, r, scheme);
default:
break;
}