[PATCH v2 18/23] mm: update vma_supports_mlock() to use new VMA flags

Lorenzo Stoakes (Oracle)
2026-03-16T13:11:16Z

We now have the ability to test all of this using the new vma_flags_t
approach, so let's do so.

Signed-off-by: Lorenzo Stoakes (Oracle) <ljs@kernel.org>
---
mm/internal.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/mm/internal.h b/mm/internal.h
index 80d8651441a7..708d240b4198 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -1252,7 +1252,9 @@ static inline struct file *maybe_unlock_mmap_for_io(struct vm_fault *vmf,

static inline bool vma_supports_mlock(const struct vm_area_struct *vma)
{
- if (vma->vm_flags & (VM_SPECIAL | VM_DROPPABLE))
+ if (vma_test_any_mask(vma, VMA_SPECIAL_FLAGS))
+ return false;
+ if (vma_test_single_mask(vma, VMA_DROPPABLE))
return false;
if (vma_is_dax(vma) || is_vm_hugetlb_page(vma))
return false;
--
2.53.0