Remove the now unnecessary ifdef in mm/damon/vaddr.c as well.
Signed-off-by: James Houghton <jthoughton@xxxxxxxxxx>
Reviewed-by: Jason Gunthorpe <jgg@xxxxxxxxxx>
Acked-by: David Hildenbrand <david@xxxxxxxxxx>
---
Notes:
This patch is originally from this series[1]. I've split up the MM and
KVM bits of the series, and I have already sent the MGLRU changes
here[2]. That leaves this small cleanup for DAMON.
[1]: https://lore.kernel.org/kvm/20240926013506.860253-1-jthoughton@xxxxxxxxxx/
[2]: https://lore.kernel.org/kvm/20241019012940.3656292-1-jthoughton@xxxxxxxxxx/
include/linux/mmu_notifier.h | 7 +++++++
mm/damon/vaddr.c | 2 --
2 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/include/linux/mmu_notifier.h b/include/linux/mmu_notifier.h
index d39ebb10caeb..e2dd57ca368b 100644
--- a/include/linux/mmu_notifier.h
+++ b/include/linux/mmu_notifier.h
@@ -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)
{
diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c
index 08cfd22b5249..821990d0141a 100644
--- a/mm/damon/vaddr.c
+++ b/mm/damon/vaddr.c
@@ -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);
base-commit: b5d43fad926a3f542cd06f3c9d286f6f489f7129
--
2.47.0.105.g07ac214952-goog
