From: David Hildenbrand Date: Mon, 1 Sep 2025 15:03:57 +0000 (+0200) Subject: block: update comment of "struct bio_vec" regarding nth_page() X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=6b7cc2bff046b06f2d038132552b5b04f8717f90;p=users%2Fjedix%2Flinux-maple.git block: update comment of "struct bio_vec" regarding nth_page() Ever since commit 858c708d9efb ("block: move the bi_size update out of __bio_try_merge_page"), page_is_mergeable() no longer exists, and the logic in bvec_try_merge_page() is now a simple page pointer comparison. Link: https://lkml.kernel.org/r/20250901150359.867252-37-david@redhat.com Signed-off-by: David Hildenbrand Reviewed-by: Lorenzo Stoakes Signed-off-by: Andrew Morton --- diff --git a/include/linux/bvec.h b/include/linux/bvec.h index 0a80e1f9aa20..3fc0efa0825b 100644 --- a/include/linux/bvec.h +++ b/include/linux/bvec.h @@ -22,11 +22,8 @@ struct page; * @bv_len: Number of bytes in the address range. * @bv_offset: Start of the address range relative to the start of @bv_page. * - * The following holds for a bvec if n * PAGE_SIZE < bv_offset + bv_len: - * - * nth_page(@bv_page, n) == @bv_page + n - * - * This holds because page_is_mergeable() checks the above property. + * All pages within a bio_vec starting from @bv_page are contiguous and + * can simply be iterated (see bvec_advance()). */ struct bio_vec { struct page *bv_page;