Commit ec1d5bab authored by SeongJae Park's avatar SeongJae Park Committed by Andrew Morton
Browse files

mm/damon/paddr: support addr_unit for MIGRATE_{HOT,COLD} 

Add support of addr_unit for DAMOS_MIGRATE_HOT and DAMOS_MIGRATE_COLD
action handling from the DAMOS operation implementation for the physical
address space.

Link: https://lkml.kernel.org/r/20250828171242.59810-6-sj@kernel.org


Signed-off-by: default avatarSeongJae Park <sj@kernel.org>
Signed-off-by: default avatarQuanmin Yan <yanquanmin1@huawei.com>
Reviewed-by: default avatarSeongJae Park <sj@kernel.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: ze zuo <zuoze1@huawei.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent 51a1ebd3

mm/damon/paddr.c

+8 −7
Original line number Diff line number Diff line
@@ -256,15 +256,16 @@ static unsigned long damon_pa_deactivate_pages(struct damon_region *r, 
			sz_filter_passed);

}



static unsigned long damon_pa_migrate(struct damon_region *r, struct damos *s,

static unsigned long damon_pa_migrate(struct damon_region *r,

		unsigned long addr_unit, struct damos *s,

		unsigned long *sz_filter_passed)

{

	unsigned long addr, applied;

	phys_addr_t addr, applied;

	LIST_HEAD(folio_list);

	struct folio *folio;



	addr = r->ar.start;

	while (addr < r->ar.end) {

	addr = damon_pa_phys_addr(r->ar.start, addr_unit);

	while (addr < damon_pa_phys_addr(r->ar.end, addr_unit)) {

		folio = damon_get_folio(PHYS_PFN(addr));

		if (damon_pa_invalid_damos_folio(folio, s)) {

			addr += PAGE_SIZE;
@@ -274,7 +275,7 @@ static unsigned long damon_pa_migrate(struct damon_region *r, struct damos *s, 
		if (damos_pa_filter_out(s, folio))

			goto put_folio;

		else

			*sz_filter_passed += folio_size(folio);

			*sz_filter_passed += folio_size(folio) / addr_unit;



		if (!folio_isolate_lru(folio))

			goto put_folio;
@@ -286,7 +287,7 @@ static unsigned long damon_pa_migrate(struct damon_region *r, struct damos *s, 
	applied = damon_migrate_pages(&folio_list, s->target_nid);

	cond_resched();

	s->last_applied = folio;

	return applied * PAGE_SIZE;

	return damon_pa_core_addr(applied * PAGE_SIZE, addr_unit);

}



static unsigned long damon_pa_stat(struct damon_region *r, struct damos *s,
@@ -332,7 +333,7 @@ static unsigned long damon_pa_apply_scheme(struct damon_ctx *ctx, 
				sz_filter_passed);

	case DAMOS_MIGRATE_HOT:

	case DAMOS_MIGRATE_COLD:

		return damon_pa_migrate(r, scheme, sz_filter_passed);

		return damon_pa_migrate(r, aunit, scheme, sz_filter_passed);

	case DAMOS_STAT:

		return damon_pa_stat(r, scheme, sz_filter_passed);

	default: