Commit 0e93e8bf authored by SeongJae Park's avatar SeongJae Park Committed by Andrew Morton
Browse files

mm/damon/paddr: use a separate function for 'DAMOS_PAGEOUT' handling 

This commit moves code for 'DAMOS_PAGEOUT' handling of the physical
address space monitoring operations set to a separate function so that its
caller, 'damon_pa_apply_scheme()', can be more easily extended for
additional DAMOS actions later.

Link: https://lkml.kernel.org/r/20220613192301.8817-4-sj@kernel.org


Signed-off-by: default avatarSeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent c364f9af

mm/damon/paddr.c

+14 −6
Original line number Diff line number Diff line
@@ -204,16 +204,11 @@ static unsigned int damon_pa_check_accesses(struct damon_ctx *ctx) 
	return max_nr_accesses;

}



static unsigned long damon_pa_apply_scheme(struct damon_ctx *ctx,

		struct damon_target *t, struct damon_region *r,

		struct damos *scheme)

static unsigned long damon_pa_pageout(struct damon_region *r)

{

	unsigned long addr, applied;

	LIST_HEAD(page_list);



	if (scheme->action != DAMOS_PAGEOUT)

		return 0;



	for (addr = r->ar.start; addr < r->ar.end; addr += PAGE_SIZE) {

		struct page *page = damon_get_page(PHYS_PFN(addr));
@@ -238,6 +233,19 @@ static unsigned long damon_pa_apply_scheme(struct damon_ctx *ctx, 
	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)

{

	switch (scheme->action) {

	case DAMOS_PAGEOUT:

		return damon_pa_pageout(r);

	default:

		break;

	}

	return 0;

}



static int damon_pa_scheme_score(struct damon_ctx *context,

		struct damon_target *t, struct damon_region *r,

		struct damos *scheme)