Commit 628e1b8c authored by James Houghton's avatar James Houghton Committed by Andrew Morton
Browse files

mm: add missing mmu_notifier_clear_young for !MMU_NOTIFIER 

Remove the now unnecessary ifdef in mm/damon/vaddr.c as well.

Link: https://lkml.kernel.org/r/20241021160212.9935-1-jthoughton@google.com


Signed-off-by: default avatarJames Houghton <jthoughton@google.com>
Reviewed-by: default avatarJason Gunthorpe <jgg@nvidia.com>
Acked-by: default avatarDavid Hildenbrand <david@redhat.com>
Reviewed-by: default avatarSeongJae Park <sj@kernel.org>
Reviewed-by: default avatarOscar Salvador <osalvador@suse.de>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent 3f1f947a

include/linux/mmu_notifier.h

+7 −0
Original line number Diff line number Diff line
@@ -606,6 +606,13 @@ static inline int mmu_notifier_clear_flush_young(struct mm_struct *mm, 
	return 0;

}



static inline int mmu_notifier_clear_young(struct mm_struct *mm,

					   unsigned long start,

					   unsigned long end)

{

	return 0;

}



static inline int mmu_notifier_test_young(struct mm_struct *mm,

					  unsigned long address)

{

mm/damon/vaddr.c

+0 −2
Original line number Diff line number Diff line
@@ -353,11 +353,9 @@ static void damon_hugetlb_mkold(pte_t *pte, struct mm_struct *mm, 
		set_huge_pte_at(mm, addr, pte, entry, psize);

	}



#ifdef CONFIG_MMU_NOTIFIER

	if (mmu_notifier_clear_young(mm, addr,

				     addr + huge_page_size(hstate_vma(vma))))

		referenced = true;

#endif /* CONFIG_MMU_NOTIFIER */



	if (referenced)

		folio_set_young(folio);