Hi:
On 2021/2/10 15:24, Miaohe Lin wrote:
> There is no need to use a new local variable ret2 to get the return value
> of handle_userfault(). Use ret directly to make code more succinct.
>
> Signed-off-by: Miaohe Lin <[email protected]>
friendly ping in case it's forgotten. :)
> ---
> mm/huge_memory.c | 8 +++-----
> 1 file changed, 3 insertions(+), 5 deletions(-)
>
> diff --git a/mm/huge_memory.c b/mm/huge_memory.c
> index 395c75111d33..caf552834dbb 100644
> --- a/mm/huge_memory.c
> +++ b/mm/huge_memory.c
> @@ -624,14 +624,12 @@ static vm_fault_t __do_huge_pmd_anonymous_page(struct
> vm_fault *vmf,
>
> /* Deliver the page fault to userland */
> if (userfaultfd_missing(vma)) {
> - vm_fault_t ret2;
> -
> spin_unlock(vmf->ptl);
> put_page(page);
> pte_free(vma->vm_mm, pgtable);
> - ret2 = handle_userfault(vmf, VM_UFFD_MISSING);
> - VM_BUG_ON(ret2 & VM_FAULT_FALLBACK);
> - return ret2;
> + ret = handle_userfault(vmf, VM_UFFD_MISSING);
> + VM_BUG_ON(ret & VM_FAULT_FALLBACK);
> + return ret;
> }
>
> entry = mk_huge_pmd(page, vma->vm_page_prot);
>
