Re: [RFC PATCH 29/34] power/swap: use bio_new in hib_submit_io

Rafael J. Wysocki
2021-01-28T10:22:57Z

On Thu, Jan 28, 2021 at 8:21 AM Chaitanya Kulkarni
<chaitanya.kulkarni@wdc.com> wrote:
>

Please explain in the changelog why making this change is a good idea.

> Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
> ---
> kernel/power/swap.c | 7 +++----
> 1 file changed, 3 insertions(+), 4 deletions(-)
>
> diff --git a/kernel/power/swap.c b/kernel/power/swap.c
> index c73f2e295167..e92e36c053a6 100644
> --- a/kernel/power/swap.c
> +++ b/kernel/power/swap.c
> @@ -271,13 +271,12 @@ static int hib_submit_io(int op, int op_flags, pgoff_t page_off, void *addr,
> struct hib_bio_batch *hb)
> {
> struct page *page = virt_to_page(addr);
> + sector_t sect = page_off * (PAGE_SIZE >> 9);
> struct bio *bio;
> int error = 0;
>
> - bio = bio_alloc(GFP_NOIO | __GFP_HIGH, 1);
> - bio->bi_iter.bi_sector = page_off * (PAGE_SIZE >> 9);
> - bio_set_dev(bio, hib_resume_bdev);
> - bio_set_op_attrs(bio, op, op_flags);
> + bio = bio_new(hib_resume_bdev, sect, op, op_flags, 1,
> + GFP_NOIO | __GFP_HIGH);
>
> if (bio_add_page(bio, page, PAGE_SIZE, 0) < PAGE_SIZE) {
> pr_err("Adding page to bio failed at %llu\n",
> --
> 2.22.1
>