From patchwork Tue Jun 15 13:24:46 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 12321489 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 67874C48BDF for ; Tue, 15 Jun 2021 13:29:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 53D2761468 for ; Tue, 15 Jun 2021 13:29:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231545AbhFONbJ (ORCPT ); Tue, 15 Jun 2021 09:31:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54444 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231543AbhFONbC (ORCPT ); Tue, 15 Jun 2021 09:31:02 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0BAF3C0613A4; Tue, 15 Jun 2021 06:28:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=gCdUfdryXX9J3CwMxmwyJL5seb86z6Ov9FawmIkvAKE=; b=Kaaj+w5sQBoBqkokmlMCbw4thd Y7RDcQBgSPtWiunihfvmP4ESXOvhqtDJoTqJoE/9zJZprhgvpjDifd84KWd+McMZbcjtKZXFVlJUN jQg6z+ZJ54Tz4G17iB1ZeKnFbcbf9O+F+c28OwF/47Tcch64az3DF3QiXEebGtjAucaT1r0tIgSvE CY3C3GkjI8ZtiKGXJSYcKIMth7IL2aHU47vDbyksvE6tWslM8x9Dh1MmU4C3uNhLT/izjphPsnF20 CiWAlkUponb1AsZWsfz5+tjnNExbaWSCT5bk2MDSTan/yAXXEiELwPjfQkKmiuYUy/NJjXyM7lrBM oj39iSdw==; Received: from [2001:4bb8:19b:fdce:9045:1e63:20f0:ca9] (helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1lt96I-006o5s-Gs; Tue, 15 Jun 2021 13:27:36 +0000 From: Christoph Hellwig To: Jens Axboe , Thomas Gleixner Cc: Thomas Bogendoerfer , Geoff Levand , Ilya Dryomov , Dongsheng Yang , Mike Snitzer , "James E.J. Bottomley" , Ira Weiny , dm-devel@redhat.com, linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, ceph-devel@vger.kernel.org, linux-arch@vger.kernel.org, Chaitanya Kulkarni Subject: [PATCH 08/18] block: use memzero_page in zero_fill_bio Date: Tue, 15 Jun 2021 15:24:46 +0200 Message-Id: <20210615132456.753241-9-hch@lst.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210615132456.753241-1-hch@lst.de> References: <20210615132456.753241-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org Use memzero_bvec to zero each segment in the bio instead of manually mapping and zeroing the data. Signed-off-by: Christoph Hellwig Reviewed-by: Chaitanya Kulkarni Reviewed-by: Ira Weiny --- block/bio.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/block/bio.c b/block/bio.c index 44205dfb6b60..1d7abdb83a39 100644 --- a/block/bio.c +++ b/block/bio.c @@ -495,16 +495,11 @@ EXPORT_SYMBOL(bio_kmalloc); void zero_fill_bio(struct bio *bio) { - unsigned long flags; struct bio_vec bv; struct bvec_iter iter; - bio_for_each_segment(bv, bio, iter) { - char *data = bvec_kmap_irq(&bv, &flags); - memset(data, 0, bv.bv_len); - flush_dcache_page(bv.bv_page); - bvec_kunmap_irq(data, &flags); - } + bio_for_each_segment(bv, bio, iter) + memzero_bvec(&bv); } EXPORT_SYMBOL(zero_fill_bio);