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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: 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>
pull/1354/merge
SeongJae Park 2025-08-28 10:12:37 -07:00 committed by Andrew Morton
parent ec1d5bab06
commit 01e7ee33a0
1 changed files with 7 additions and 6 deletions
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13
mm/damon/paddr.c
View File

@ -290,17 +290,18 @@ put_folio:
return damon_pa_core_addr(applied * PAGE_SIZE, addr_unit); 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 *sz_filter_passed)
{ {
unsigned long addr; phys_addr_t addr;
struct folio *folio; struct folio *folio;
if (!damos_ops_has_filter(s)) if (!damos_ops_has_filter(s))
return 0; return 0;
addr = r->ar.start; addr = damon_pa_phys_addr(r->ar.start, addr_unit);
while (addr < r->ar.end) { while (addr < damon_pa_phys_addr(r->ar.end, addr_unit)) {
folio = damon_get_folio(PHYS_PFN(addr)); folio = damon_get_folio(PHYS_PFN(addr));
if (damon_pa_invalid_damos_folio(folio, s)) { if (damon_pa_invalid_damos_folio(folio, s)) {
addr += PAGE_SIZE; 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)) 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); addr += folio_size(folio);
folio_put(folio); folio_put(folio);
} }
@ -335,7 +336,7 @@ static unsigned long damon_pa_apply_scheme(struct damon_ctx *ctx,
case DAMOS_MIGRATE_COLD: case DAMOS_MIGRATE_COLD:
return damon_pa_migrate(r, aunit, scheme, sz_filter_passed); return damon_pa_migrate(r, aunit, scheme, sz_filter_passed);
case DAMOS_STAT: case DAMOS_STAT:
return damon_pa_stat(r, scheme, sz_filter_passed); return damon_pa_stat(r, aunit, scheme, sz_filter_passed);
default: default:
/* DAMOS actions that not yet supported by 'paddr'. */ /* DAMOS actions that not yet supported by 'paddr'. */
break; break;