mm: deduplicate mm_get_unmapped_area()

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

Link: https://lkml.kernel.org/r/20250627160739.2124768-1-peterx@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Reviewed-by: Pedro Falcato <pfalcato@suse.de>
Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Dev Jain <dev.jain@arm.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: "Liam R. Howlett" <Liam.Howlett@oracle.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Jann Horn <jannh@google.com>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/mm/mmap.c b/mm/mmap.c
index 8f92cf10b65631c6a9ba80749bb2e93bd13b51b3..74072369e8fde3f4094427b89ddc81fa9e3f2a9f 100644 (file)
--- 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);