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-rw-r--r--include/linux/hugetlb.h5
-rw-r--r--mm/hugetlb.c7
2 files changed, 8 insertions, 4 deletions
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index d3acecc5db4b..236ec7b63c54 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -1268,10 +1268,7 @@ static inline bool __vma_shareable_lock(struct vm_area_struct *vma)
return (vma->vm_flags & VM_MAYSHARE) && vma->vm_private_data;
}
-static inline bool __vma_private_lock(struct vm_area_struct *vma)
-{
- return (!(vma->vm_flags & VM_MAYSHARE)) && vma->vm_private_data;
-}
+bool __vma_private_lock(struct vm_area_struct *vma);
/*
* Safe version of huge_pte_offset() to check the locks. See comments
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 1169ef2f2176..6feb3e0630d1 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -1182,6 +1182,13 @@ static int is_vma_resv_set(struct vm_area_struct *vma, unsigned long flag)
return (get_vma_private_data(vma) & flag) != 0;
}
+bool __vma_private_lock(struct vm_area_struct *vma)
+{
+ return !(vma->vm_flags & VM_MAYSHARE) &&
+ get_vma_private_data(vma) & ~HPAGE_RESV_MASK &&
+ is_vma_resv_set(vma, HPAGE_RESV_OWNER);
+}
+
void hugetlb_dup_vma_private(struct vm_area_struct *vma)
{
VM_BUG_ON_VMA(!is_vm_hugetlb_page(vma), vma);