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2024-02-19 890e1df1bec891d9203724541e81f8fbe5183388

 kernel/mm/userfaultfd.c
..
..
@@ -63,7 +63,7 @@
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 	pte_t _dst_pte, *dst_pte;
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 	bool writable = dst_vma->vm_flags & VM_WRITE;
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 	bool vm_shared = dst_vma->vm_flags & VM_SHARED;
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-	bool page_in_cache = page->mapping;
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+	bool page_in_cache = page_mapping(page);
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 	spinlock_t *ptl;
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 	struct inode *inode;
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 	pgoff_t offset, max_off;