Messages in this thread Patch in this message | | | From | Ming Lei <> | Subject | [PATCH v1 27/27] mm: page_io.c: use bio_get_base_vec() | Date | Thu, 14 Apr 2016 20:02:45 +0800 |
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Signed-off-by: Ming Lei <tom.leiming@gmail.com> --- mm/page_io.c | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-)
diff --git a/mm/page_io.c b/mm/page_io.c index cd92e3d..1ced9d3 100644 --- a/mm/page_io.c +++ b/mm/page_io.c @@ -43,7 +43,14 @@ static struct bio *get_swap_bio(gfp_t gfp_flags, void end_swap_bio_write(struct bio *bio) { - struct page *page = bio->bi_io_vec[0].bv_page; + /* + * Single bvec bio. + * + * For accessing page pointed to by the 1st bvec, it + * works too after multipage bvecs. + */ + struct bio_vec *bvec = bio_get_base_vec(bio); + struct page *page = bvec->bv_page; if (bio->bi_error) { SetPageError(page); @@ -116,7 +123,14 @@ static void swap_slot_free_notify(struct page *page) static void end_swap_bio_read(struct bio *bio) { - struct page *page = bio->bi_io_vec[0].bv_page; + /* + * Single bvec bio. + * + * For accessing page pointed to by the 1st bvec, it + * works too after multipage bvecs. + */ + struct bio_vec *bvec = bio_get_base_vec(bio); + struct page *page = bvec->bv_page; if (bio->bi_error) { SetPageError(page); -- 1.9.1
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