On Fri, Jun 04, 2021 at 07:40:16PM +0000, Liam Howlett wrote:
> do_munmap() does not take the mmap_write_lock(). vm_munmap() should be
> used instead.
also, do_munmap was unexported for MMU builds back in 2012 by commit
17d1587f553d.
Reviewed-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
> Signed-off-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx>
> ---
> mm/nommu.c | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/mm/nommu.c b/mm/nommu.c
> index 0997ca38c2bd..3a93d4054810 100644
> --- a/mm/nommu.c
> +++ b/mm/nommu.c
> @@ -1501,7 +1501,6 @@ int do_munmap(struct mm_struct *mm, unsigned long start, size_t len, struct list
> delete_vma(mm, vma);
> return 0;
> }
> -EXPORT_SYMBOL(do_munmap);
>
> int vm_munmap(unsigned long addr, size_t len)
> {
> --
> 2.30.2
>
