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SubjectRe: [PATCH 14/15] mm/swap: fix the comment of get_kernel_pages
On Fri, 13 May 2022 14:15:38 +0800 Miaohe Lin <linmiaohe@huawei.com> wrote:

> On 2022/5/12 21:45, David Hildenbrand wrote:
> > On 09.05.22 15:14, Miaohe Lin wrote:
> >> If no pages were pinned, 0 is returned in fact. Fix the corresponding
> >> comment.
> >>
> >> Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
> >> ---
> >> mm/swap.c | 4 ++--
> >> 1 file changed, 2 insertions(+), 2 deletions(-)
> >>
> >> diff --git a/mm/swap.c b/mm/swap.c
> >> index 6d2c37f781f8..236b37663a1a 100644
> >> --- a/mm/swap.c
> >> +++ b/mm/swap.c
> >> @@ -168,8 +168,8 @@ EXPORT_SYMBOL(put_pages_list);
> >> *
> >> * Returns number of pages pinned. This may be fewer than the number
> >> * requested. If nr_pages is 0 or negative, returns 0. If no pages
> >
> > Ehm, there is only "nr_segs", no "nr_pages" :/ Want to fix that up in
> > the same patch?
>
> Will do.

I also reflowed that comment to use more columns.

--- a/mm/swap.c~mm-swap-fix-the-comment-of-get_kernel_pages-fix
+++ a/mm/swap.c
@@ -166,10 +166,10 @@ EXPORT_SYMBOL(put_pages_list);
* @pages: array that receives pointers to the pages pinned.
* Should be at least nr_segs long.
*
- * Returns number of pages pinned. This may be fewer than the number
- * requested. If nr_pages is 0 or negative, returns 0. If no pages
- * were pinned, returns 0. Each page returned must be released with
- * a put_page() call when it is finished with.
+ * Returns number of pages pinned. This may be fewer than the number requested.
+ * If nr_segs is 0 or negative, returns 0. If no pages were pinned, returns 0.
+ * Each page returned must be released with a put_page() call when it is
+ * finished with.
*/
int get_kernel_pages(const struct kvec *kiov, int nr_segs, int write,
struct page **pages)
_
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