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

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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: SeongJae Park <sj@kernel.org>
Signed-off-by: Quanmin Yan <yanquanmin1@huawei.com>
Reviewed-by: SeongJae 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: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
SeongJae Park 2025-08-28 10:12:36 -07:00 committed by Andrew Morton
parent 51a1ebd3a2
commit ec1d5bab06
1 changed files with 8 additions and 7 deletions
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15
mm/damon/paddr.c
View File

@ -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: