From: Liam R. Howlett Date: Tue, 16 Mar 2021 19:56:41 +0000 (-0400) Subject: um tlb rcu fix X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=44ab39de9525e4fe8b78f05a8cf5312e1478de94;p=users%2Fjedix%2Flinux-maple.git um tlb rcu fix Signed-off-by: Liam R. Howlett --- diff --git a/arch/um/kernel/tlb.c b/arch/um/kernel/tlb.c index 670d130e6e86..a6ab30cd7d08 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); }