From: Liam Howlett <liam.howlett@xxxxxxxxxx> Subject: mm/nommu: unexport do_munmap() do_munmap() does not take the mmap_write_lock(). vm_munmap() should be used instead. Link: https://lkml.kernel.org/r/20210604194002.648037-1-Liam.Howlett@xxxxxxxxxx Signed-off-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx> Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Reviewed-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx> Reviewed-by: David Hildenbrand <david@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/nommu.c | 1 - 1 file changed, 1 deletion(-) --- a/mm/nommu.c~mm-nommu-unexport-do_munmap +++ a/mm/nommu.c @@ -1501,7 +1501,6 @@ erase_whole_vma: delete_vma(mm, vma); return 0; } -EXPORT_SYMBOL(do_munmap); int vm_munmap(unsigned long addr, size_t len) { _
