From: Liam Howlett <liam.howlett@xxxxxxxxxx> Subject: arch/powerpc/kvm/book3s: use vma_lookup() in kvmppc_hv_setup_htab_rma() Using vma_lookup() removes the requirement to check if the address is within the returned vma. The code is easier to understand and more compact. Link: https://lkml.kernel.org/r/20210521174745.2219620-7-Liam.Howlett@xxxxxxxxxx Signed-off-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx> Reviewed-by: Laurent Dufour <ldufour@xxxxxxxxxxxxx> Acked-by: David Hildenbrand <david@xxxxxxxxxx> Acked-by: Davidlohr Bueso <dbueso@xxxxxxx> Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- arch/powerpc/kvm/book3s_hv.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/arch/powerpc/kvm/book3s_hv.c~arch-powerpc-kvm-book3s-use-vma_lookup-in-kvmppc_hv_setup_htab_rma +++ a/arch/powerpc/kvm/book3s_hv.c @@ -4758,8 +4758,8 @@ static int kvmppc_hv_setup_htab_rma(stru /* Look up the VMA for the start of this memory slot */ hva = memslot->userspace_addr; mmap_read_lock(kvm->mm); - vma = find_vma(kvm->mm, hva); - if (!vma || vma->vm_start > hva || (vma->vm_flags & VM_IO)) + vma = vma_lookup(kvm->mm, hva); + if (!vma || (vma->vm_flags & VM_IO)) goto up_out; psize = vma_kernel_pagesize(vma); _
