On 18/10/2022 11:49, Johannes Berg wrote:
From: Johannes Berg <johannes.b...@intel.com> Due to changes in the iteration, there are now lockdep checks indicating that we're missing locking here. Add the missing locking where it's needed. Signed-off-by: Johannes Berg <johannes.b...@intel.com> --- v2: use mmap_read_lock() v3: umm, yeah I'm an idiot, tested without rebuilding
Happens even to the best of us.
--- 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 ad449173a1a1..fa43bcd9ba0b 100644 --- a/arch/um/kernel/tlb.c +++ b/arch/um/kernel/tlb.c @@ -597,6 +597,8 @@ void force_flush_all(void) struct vm_area_struct *vma; VMA_ITERATOR(vmi, mm, 0);+ mmap_read_lock(mm);for_each_vma(vmi, vma) fix_range(mm, vma->vm_start, vma->vm_end, 1); + mmap_read_unlock(mm); }
Acked-By: Anton Ivanov <anton.iva...@cambridgegreys.com> -- Anton R. Ivanov Cambridgegreys Limited. Registered in England. Company Number 10273661 https://www.cambridgegreys.com/ _______________________________________________ linux-um mailing list linux-um@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-um
