From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 33F88CA0FFD for ; Thu, 28 Aug 2025 00:23:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=nlMdFfkN5wxCpxlnpbLvAhVZuzPBmg7l/DogPRS+laI=; b=XDvxblvV78gCJG G/e44goy6czt0GLW3F0BSm+K19ULujIriYDiCN33sOAek+9UHdG0MR7hOX4hvvBjCNmzElOd4WAFM fBSF7drO9B1amvX6hecPeJ3MplyM9j1knf50F5XdP1UO0jC5EnHpVlztRXFC0vluK8oqcCCimNPIg 5ueR01tOTsKZvp3VnzchSlSfzKb8ZYkC1ucpZW4HK0hryjY6Acmi2ZMb4fC8SAY68WX1gw/S3oKo7 epGJb2GgRyQBzM0lpTcJ8pL2Ym1fxBZu5hhs4PvvRLIvcwr6epZFaCyyUevRYgAV63f+kokLi2ql1 rNTwNr6r9qaicLi4yfxg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1urQQS-0000000HLZC-2UPF; Thu, 28 Aug 2025 00:23:36 +0000 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1urONJ-0000000H1nu-1jWn for linux-riscv@lists.infradead.org; Wed, 27 Aug 2025 22:12:14 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1756332732; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Z7iPpUiW3LrFM0W3XrB+Z82uodwKTsefoCzXwhLbLUo=; b=Tmyz9Zo4pYxUiaO8a3dvuUCfkxlAcYYkY8eV0dPY07pPUrgJvmOatfGTzG44QbYMFWKlnM nSDS4hAGZAoMaDwcoWmxRNcLZ2gKKwR2718M58lKk4wAhaPshr6uTiks1+8HRImoZEUmfz sTuexLAjGKR0izOn+7uHimti15spZiY= Received: from mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (ec2-35-165-154-97.us-west-2.compute.amazonaws.com [35.165.154.97]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-636-ShHxITs4Pxeui_5CEKaCgA-1; Wed, 27 Aug 2025 18:12:10 -0400 X-MC-Unique: ShHxITs4Pxeui_5CEKaCgA-1 X-Mimecast-MFC-AGG-ID: ShHxITs4Pxeui_5CEKaCgA_1756332725 Received: from mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 8CFA218004D4; Wed, 27 Aug 2025 22:12:05 +0000 (UTC) Received: from t14s.redhat.com (unknown [10.22.80.195]) by mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 7D11F30001A5; Wed, 27 Aug 2025 22:11:48 +0000 (UTC) From: David Hildenbrand To: linux-kernel@vger.kernel.org Cc: David Hildenbrand , Alexander Potapenko , Andrew Morton , Brendan Jackman , Christoph Lameter , Dennis Zhou , Dmitry Vyukov , dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, iommu@lists.linux.dev, io-uring@vger.kernel.org, Jason Gunthorpe , Jens Axboe , Johannes Weiner , John Hubbard , kasan-dev@googlegroups.com, kvm@vger.kernel.org, "Liam R. Howlett" , Linus Torvalds , linux-arm-kernel@axis.com, linux-arm-kernel@lists.infradead.org, linux-crypto@vger.kernel.org, linux-ide@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mips@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mm@kvack.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-scsi@vger.kernel.org, Lorenzo Stoakes , Marco Elver , Marek Szyprowski , Michal Hocko , Mike Rapoport , Muchun Song , netdev@vger.kernel.org, Oscar Salvador , Peter Xu , Robin Murphy , Suren Baghdasaryan , Tejun Heo , virtualization@lists.linux.dev, Vlastimil Babka , wireguard@lists.zx2c4.com, x86@kernel.org, Zi Yan Subject: [PATCH v1 35/36] block: update comment of "struct bio_vec" regarding nth_page() Date: Thu, 28 Aug 2025 00:01:39 +0200 Message-ID: <20250827220141.262669-36-david@redhat.com> In-Reply-To: <20250827220141.262669-1-david@redhat.com> References: <20250827220141.262669-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250827_151213_524206_24E35F70 X-CRM114-Status: GOOD ( 11.52 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org 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. Signed-off-by: David Hildenbrand --- include/linux/bvec.h | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/include/linux/bvec.h b/include/linux/bvec.h index 0a80e1f9aa201..3fc0efa0825b1 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; -- 2.50.1 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv