From 44ab39de9525e4fe8b78f05a8cf5312e1478de94 Mon Sep 17 00:00:00 2001 From: "Liam R. Howlett" Date: Tue, 16 Mar 2021 15:56:41 -0400 Subject: [PATCH] um tlb rcu fix Signed-off-by: Liam R. Howlett --- arch/um/kernel/tlb.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/um/kernel/tlb.c b/arch/um/kernel/tlb.c index 670d130e6e862..a6ab30cd7d08a 100644 --- a/arch/um/kernel/tlb.c +++ b/arch/um/kernel/tlb.c @@ -593,6 +593,7 @@ void flush_tlb_mm(struct mm_struct *mm) struct vm_area_struct *vma; MA_STATE(mas, &mm->mm_mt, 0, 0); + /* Must hold mm_mt lock already */ mas_for_each(&mas, vma, ULONG_MAX) fix_range(mm, vma->vm_start, vma->vm_end, 0); } @@ -603,6 +604,7 @@ void force_flush_all(void) struct vm_area_struct *vma; MA_STATE(mas, &mm->mm_mt, 0, 0); + /* Must hold mm_mt lock already */ mas_for_each(&mas, vma, ULONG_MAX) fix_range(mm, vma->vm_start, vma->vm_end, 1); } -- 2.50.1