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mm/damon/paddr: remove folio_sz field from damon_pa_access_chk_result

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DAMON physical address space monitoring operations set gets and saves size
of the folio for a given physical address inside rmap walks, but it can be
directly caluclated outside of the walks.  Remove the 'folio_sz' field
from 'damon_pa_access_chk_result struct' and calculate the size directly
from outside of the walks.

Link: https://lkml.kernel.org/r/20230109213335.62525-6-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 21:33:34 +00:00 committed by Andrew Morton
parent af40e35a99
commit 397b0c3a58
1 changed files with 1 additions and 6 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

7
mm/damon/paddr.c
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@ -80,8 +80,6 @@ static void damon_pa_prepare_access_checks(struct damon_ctx *ctx)
} }
struct damon_pa_access_chk_result { struct damon_pa_access_chk_result {
/* size of the folio for the access checked physical memory address */
unsigned long folio_sz;
bool accessed; bool accessed;
}; };
@ -92,7 +90,6 @@ static bool __damon_pa_young(struct folio *folio, struct vm_area_struct *vma,
DEFINE_FOLIO_VMA_WALK(pvmw, folio, vma, addr, 0); DEFINE_FOLIO_VMA_WALK(pvmw, folio, vma, addr, 0);
result->accessed = false; result->accessed = false;
result->folio_sz = PAGE_SIZE;
while (page_vma_mapped_walk(&pvmw)) { while (page_vma_mapped_walk(&pvmw)) {
addr = pvmw.address; addr = pvmw.address;
if (pvmw.pte) { if (pvmw.pte) {
@ -104,7 +101,6 @@ static bool __damon_pa_young(struct folio *folio, struct vm_area_struct *vma,
result->accessed = pmd_young(*pvmw.pmd) || result->accessed = pmd_young(*pvmw.pmd) ||
!folio_test_idle(folio) || !folio_test_idle(folio) ||
mmu_notifier_test_young(vma->vm_mm, addr); mmu_notifier_test_young(vma->vm_mm, addr);
result->folio_sz = HPAGE_PMD_SIZE;
#else #else
WARN_ON_ONCE(1); WARN_ON_ONCE(1);
#endif /* CONFIG_TRANSPARENT_HUGEPAGE */ #endif /* CONFIG_TRANSPARENT_HUGEPAGE */
@ -123,7 +119,6 @@ static bool damon_pa_young(unsigned long paddr, unsigned long *folio_sz)
{ {
struct folio *folio = damon_get_folio(PHYS_PFN(paddr)); struct folio *folio = damon_get_folio(PHYS_PFN(paddr));
struct damon_pa_access_chk_result result = { struct damon_pa_access_chk_result result = {
.folio_sz = PAGE_SIZE,
.accessed = false, .accessed = false,
}; };
struct rmap_walk_control rwc = { struct rmap_walk_control rwc = {
@ -158,7 +153,7 @@ static bool damon_pa_young(unsigned long paddr, unsigned long *folio_sz)
folio_put(folio); folio_put(folio);
out: out:
*folio_sz = result.folio_sz; *folio_sz = folio_size(folio);
return result.accessed; return result.accessed;
} }