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Subject[PATCH] mm/mremap:: Use vma_lookup() instead of find_vma()
Date
Using vma_lookup() verifies the address is contained in the found vma.
This results in easier to read the code.

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

diff --git a/mm/mremap.c b/mm/mremap.c
index 002eec83e91e..9d76da79594d 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -942,8 +942,8 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,

if (mmap_write_lock_killable(current->mm))
return -EINTR;
- vma = find_vma(mm, addr);
- if (!vma || vma->vm_start > addr) {
+ vma = vma_lookup(mm, addr);
+ if (!vma) {
ret = EFAULT;
goto out;
}
--
2.23.0
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