diff options
| author | Liam Howlett <[email protected]> | 2021-06-28 19:39:38 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2021-06-29 10:53:52 -0700 |
| commit | 46e6b31d4617612e47daeb7b4b6350b116349f6d (patch) | |
| tree | dd7c0f43d6ef1efbc37b2e1f028e76a95781a996 | |
| parent | 9016ddeddf8510f79b4c5816855cdd244e84ad7f (diff) | |
lib/test_hmm: use vma_lookup() in dmirror_migrate()
Use vma_lookup() to find the VMA at a specific address. As vma_lookup()
will return NULL if the address is not within any VMA, the start address
no longer needs to be validated.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Liam R. Howlett <[email protected]>
Reviewed-by: Laurent Dufour <[email protected]>
Acked-by: David Hildenbrand <[email protected]>
Acked-by: Davidlohr Bueso <[email protected]>
Cc: Geert Uytterhoeven <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
| -rw-r--r-- | lib/test_hmm.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/lib/test_hmm.c b/lib/test_hmm.c index 80a78877bd93..15f2e2db77bc 100644 --- a/lib/test_hmm.c +++ b/lib/test_hmm.c @@ -686,9 +686,8 @@ static int dmirror_migrate(struct dmirror *dmirror, mmap_read_lock(mm); for (addr = start; addr < end; addr = next) { - vma = find_vma(mm, addr); - if (!vma || addr < vma->vm_start || - !(vma->vm_flags & VM_READ)) { + vma = vma_lookup(mm, addr); + if (!vma || !(vma->vm_flags & VM_READ)) { ret = -EINVAL; goto out; } |