1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Common Primitives for Data Access Monitoring
4  *
5  * Author: SeongJae Park <sj@kernel.org>
6  */
7 
8 #include <linux/damon.h>
9 #include <linux/random.h>
10 
11 /* Get a random number in [l, r) */
12 #define damon_rand(l, r) (l + prandom_u32_max(r - l))
13 
14 struct page *damon_get_page(unsigned long pfn);
15 
16 void damon_ptep_mkold(pte_t *pte, struct mm_struct *mm, unsigned long addr);
17 void damon_pmdp_mkold(pmd_t *pmd, struct mm_struct *mm, unsigned long addr);
18 
19 int damon_pageout_score(struct damon_ctx *c, struct damon_region *r,
20 			struct damos *s);
21