[PATCH] mm: Deduplicate mm_get_unmapped_area()

[Peter Xu]

Essentially it sets vm_flags==0 for mm_get_unmapped_area_vmflags().  Use
the helper instead to dedup the lines.

Cc: "Liam R. Howlett" <Liam.Howlett@xxxxxxxxxx>
Cc: Lorenzo Stoakes <lorenzo.stoakes@xxxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Jann Horn <jannh@xxxxxxxxxx>
Cc: Pedro Falcato <pfalcato@xxxxxxx>
Reviewed-by: Jason Gunthorpe <jgg@xxxxxxxxxx>
Reviewed-by: Oscar Salvador <osalvador@xxxxxxx>
Reviewed-by: Zi Yan <ziy@xxxxxxxxxx>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@xxxxxxxxxx>
Reviewed-by: Pedro Falcato <pfalcato@xxxxxxx>
Acked-by: David Hildenbrand <david@xxxxxxxxxx>
Signed-off-by: Peter Xu <peterx@xxxxxxxxxx>
---
 mm/mmap.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/mm/mmap.c b/mm/mmap.c
index 8f92cf10b656..74072369e8fd 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -871,9 +871,8 @@ mm_get_unmapped_area(struct mm_struct *mm, struct file *file,
 		     unsigned long addr, unsigned long len,
 		     unsigned long pgoff, unsigned long flags)
 {
-	if (test_bit(MMF_TOPDOWN, &mm->flags))
-		return arch_get_unmapped_area_topdown(file, addr, len, pgoff, flags, 0);
-	return arch_get_unmapped_area(file, addr, len, pgoff, flags, 0);
+	return mm_get_unmapped_area_vmflags(mm, file, addr, len,
+					    pgoff, flags, 0);
 }
 EXPORT_SYMBOL(mm_get_unmapped_area);
 
-- 
2.49.0