mm/nommu: unexport do_munmap()

howlett · torvalds · commit db1d9152c91a · 2021-06-30T20:47:30.000-07:00
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>
diff --git 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)
 {

Original file line number	Diff line number	Diff line change
`@@ -1501,7 +1501,6 @@ int do_munmap(struct mm_struct *mm, unsigned long start, size_t len, struct list`
`1501`	`1501`	`delete_vma(mm, vma);`
`1502`	`1502`	`return 0;`
`1503`	`1503`	`}`
`1504`		`-EXPORT_SYMBOL(do_munmap);`
`1505`	`1504`
`1506`	`1505`	`int vm_munmap(unsigned long addr, size_t len)`
`1507`	`1506`	`{`