From db1d9152c91acf2fef2eb16718a0aafee60dde30 Mon Sep 17 00:00:00 2001
From: Liam Howlett <liam.howlett@oracle.com>
Date: Wed, 30 Jun 2021 18:52:17 -0700
Subject: [PATCH] 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@Oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 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)
 {