Commit 3271e27b authored by Johannes Berg's avatar Johannes Berg Committed by Richard Weinberger
Browse files

um: protect VMA iteration 



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: default avatarJohannes Berg <johannes.berg@intel.com>
Acked-By: default avatarAnton Ivanov <anton.ivanov@cambridgegreys.com>
Signed-off-by: default avatarRichard Weinberger <richard@nod.at>
parent e0820368

arch/um/kernel/tlb.c

+2 −0
Original line number Diff line number Diff line
@@ -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);

}