Commit 01e7ee33 authored by SeongJae Park's avatar SeongJae Park Committed by Andrew Morton
Browse files

mm/damon/paddr: support addr_unit for DAMOS_STAT 

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

Link: https://lkml.kernel.org/r/20250828171242.59810-7-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 ec1d5bab

mm/damon/paddr.c

+7 −6
Original line number Diff line number Diff line
@@ -290,17 +290,18 @@ static unsigned long damon_pa_migrate(struct damon_region *r, 
	return damon_pa_core_addr(applied * PAGE_SIZE, addr_unit);

}



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

static unsigned long damon_pa_stat(struct damon_region *r,

		unsigned long addr_unit, struct damos *s,

		unsigned long *sz_filter_passed)

{

	unsigned long addr;

	phys_addr_t addr;

	struct folio *folio;



	if (!damos_ops_has_filter(s))

		return 0;



	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;
@@ -308,7 +309,7 @@ static unsigned long damon_pa_stat(struct damon_region *r, struct damos *s, 
		}



		if (!damos_pa_filter_out(s, folio))

			*sz_filter_passed += folio_size(folio);

			*sz_filter_passed += folio_size(folio) / addr_unit;

		addr += folio_size(folio);

		folio_put(folio);

	}
@@ -335,7 +336,7 @@ static unsigned long damon_pa_apply_scheme(struct damon_ctx *ctx, 
	case DAMOS_MIGRATE_COLD:

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

	case DAMOS_STAT:

		return damon_pa_stat(r, scheme, sz_filter_passed);

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

	default:

		/* DAMOS actions that not yet supported by 'paddr'. */

		break;