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-rw-r--r--arch/um/kernel/trap_kern.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/um/kernel/trap_kern.c b/arch/um/kernel/trap_kern.c
index d20361dcd127..87cc6fd76ced 100644
--- a/arch/um/kernel/trap_kern.c
+++ b/arch/um/kernel/trap_kern.c
@@ -85,8 +85,7 @@ survive:
pte = pte_offset_kernel(pmd, address);
} while(!pte_present(*pte));
err = 0;
- *pte = pte_mkyoung(*pte);
- if(pte_write(*pte)) *pte = pte_mkdirty(*pte);
+ WARN_ON(!pte_young(*pte) || (is_write && !pte_dirty(*pte)));
flush_tlb_page(vma, address);
out:
up_read(&mm->mmap_sem);