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Message-ID: <20200721234619.GC643353@iweiny-DESK2.sc.intel.com>
Date: Tue, 21 Jul 2020 16:46:20 -0700
From: Ira Weiny <ira.weiny@...el.com>
To: Tang Yizhou <tangyizhou@...wei.com>
Cc: linux-mm@...ck.org, linux-next@...r.kernel.org,
linux-kernel@...r.kernel.org, akpm@...ux-foundation.org
Subject: Re: [PATCH -next] mm/gup.c: Fix the comment of return value for
populate_vma_page_range()
On Mon, Jul 20, 2020 at 11:43:03AM +0800, Tang Yizhou wrote:
> The return value of populate_vma_page_range() is consistent with
> __get_user_pages(), and so is the function comment of return value.
>
> Signed-off-by: Tang Yizhou <tangyizhou@...wei.com>
Reviewed-by: Ira Weiny <ira.weiny@...el.com>
> ---
> mm/gup.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/mm/gup.c b/mm/gup.c
> index 2cc5eba44362..a55f1ec712e9 100644
> --- a/mm/gup.c
> +++ b/mm/gup.c
> @@ -1386,7 +1386,8 @@ static __always_inline long __get_user_pages_locked(struct mm_struct *mm,
> *
> * This takes care of mlocking the pages too if VM_LOCKED is set.
> *
> - * return 0 on success, negative error code on error.
> + * Return either number of pages pinned in the vma, or a negative error
> + * code on error.
> *
> * vma->vm_mm->mmap_lock must be held.
> *
> --
> 2.17.1
>
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