[PATCH 15/28] mm/mmap: Change vm_brk_flags() to use mm_populate_vma()

From: Liam R. Howlett
Date: Thu Dec 10 2020 - 12:06:59 EST


Skip searching for the vma to populate after creating it by passing in a pointer.

Signed-off-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx>
---
mm/mmap.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/mmap.c b/mm/mmap.c
index ec2e92b03f9d1..dc7a742fbe131 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -3026,10 +3026,10 @@ int vm_brk_flags(unsigned long addr, unsigned long request, unsigned long flags)
// This vma left intentionally blank.
mas_walk(&mas);
ret = do_brk_flags(&mas, &vma, addr, len, flags);
- populate = ((mm->def_flags & VM_LOCKED) != 0);
mmap_write_unlock(mm);
+ populate = ((mm->def_flags & VM_LOCKED) != 0);
if (populate && !ret)
- mm_populate(addr, len);
+ mm_populate_vma(vma, addr, addr + len);
return ret;
}
EXPORT_SYMBOL(vm_brk_flags);
--
2.28.0