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mm/damon/paddr: rename 'damon_pa_access_chk_result->page_sz' to 'folio_sz'

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DAMON's physical address space monitoring operations set is using folio
now.  Rename 'damon_pa_access_chk_result->page_sz' to reflect the fact.

Link: https://lkml.kernel.org/r/20230109213335.62525-5-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
SeongJae Park 2023-01-09 21:33:33 +00:00 committed by Andrew Morton
parent 7477d7560c
commit af40e35a99
1 changed files with 11 additions and 10 deletions
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21
mm/damon/paddr.c
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@ -80,7 +80,8 @@ static void damon_pa_prepare_access_checks(struct damon_ctx *ctx)
}
struct damon_pa_access_chk_result {
unsigned long page_sz;
/* size of the folio for the access checked physical memory address */
unsigned long folio_sz;
bool accessed;
};
@ -91,7 +92,7 @@ static bool __damon_pa_young(struct folio *folio, struct vm_area_struct *vma,
DEFINE_FOLIO_VMA_WALK(pvmw, folio, vma, addr, 0);
result->accessed = false;
result->page_sz = PAGE_SIZE;
result->folio_sz = PAGE_SIZE;
while (page_vma_mapped_walk(&pvmw)) {
addr = pvmw.address;
if (pvmw.pte) {
@ -103,7 +104,7 @@ static bool __damon_pa_young(struct folio *folio, struct vm_area_struct *vma,
result->accessed = pmd_young(*pvmw.pmd) ||
!folio_test_idle(folio) ||
mmu_notifier_test_young(vma->vm_mm, addr);
result->page_sz = HPAGE_PMD_SIZE;
result->folio_sz = HPAGE_PMD_SIZE;
#else
WARN_ON_ONCE(1);
#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
@ -118,11 +119,11 @@ static bool __damon_pa_young(struct folio *folio, struct vm_area_struct *vma,
return !result->accessed;
}
static bool damon_pa_young(unsigned long paddr, unsigned long *page_sz)
static bool damon_pa_young(unsigned long paddr, unsigned long *folio_sz)
{
struct folio *folio = damon_get_folio(PHYS_PFN(paddr));
struct damon_pa_access_chk_result result = {
.page_sz = PAGE_SIZE,
.folio_sz = PAGE_SIZE,
.accessed = false,
};
struct rmap_walk_control rwc = {
@ -157,25 +158,25 @@ static bool damon_pa_young(unsigned long paddr, unsigned long *page_sz)
folio_put(folio);
out:
*page_sz = result.page_sz;
*folio_sz = result.folio_sz;
return result.accessed;
}
static void __damon_pa_check_access(struct damon_region *r)
{
static unsigned long last_addr;
static unsigned long last_page_sz = PAGE_SIZE;
static unsigned long last_folio_sz = PAGE_SIZE;
static bool last_accessed;
/* If the region is in the last checked page, reuse the result */
if (ALIGN_DOWN(last_addr, last_page_sz) ==
ALIGN_DOWN(r->sampling_addr, last_page_sz)) {
if (ALIGN_DOWN(last_addr, last_folio_sz) ==
ALIGN_DOWN(r->sampling_addr, last_folio_sz)) {
if (last_accessed)
r->nr_accesses++;
return;
}
last_accessed = damon_pa_young(r->sampling_addr, &last_page_sz);
last_accessed = damon_pa_young(r->sampling_addr, &last_folio_sz);
if (last_accessed)
r->nr_accesses++;