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Subject[PATCH v2 05/11] mm/migration: use helper function vma_lookup() in add_page_for_migration
Date
We could use helper function vma_lookup() to lookup the needed vma to
simplify the code.

Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
---
mm/migrate.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/migrate.c b/mm/migrate.c
index b16c561a9a4b..eb1c736750da 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -1614,8 +1614,8 @@ static int add_page_for_migration(struct mm_struct *mm, unsigned long addr,

mmap_read_lock(mm);
err = -EFAULT;
- vma = find_vma(mm, addr);
- if (!vma || addr < vma->vm_start || !vma_migratable(vma))
+ vma = vma_lookup(mm, addr);
+ if (!vma || !vma_migratable(vma))
goto out;

/* FOLL_DUMP to ignore special (like zero) pages */
--
2.23.0
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