From patchwork Tue Jun 8 16:05:53 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 455923 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, URIBL_BLOCKED, 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 56E64C4743F for ; Tue, 8 Jun 2021 16:06:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 414E0610A2 for ; Tue, 8 Jun 2021 16:06:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233695AbhFHQIm (ORCPT ); Tue, 8 Jun 2021 12:08:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53010 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233009AbhFHQIb (ORCPT ); Tue, 8 Jun 2021 12:08:31 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1F7B5C06178B; Tue, 8 Jun 2021 09:06:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; 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=Mk3t3cc1dVJmc2zEEZkVa9al3zsN33BpE4gHRgqtU1Y=; b=UreAwxVUP0BWUHxcCK0Vw+j4kF i/rdKptDRuzF1e7gyv7Fc6ekV13PXAzj751RmNUQOrkx+ghsgsfSlq79Qaf6aQG9bgYOHGLLTYZCi kPIizTYkVUobsAJEfm/czCSbQMCkFHv7AYncsL/QnfiBh8D4ym9oPRXaHfixspZX+aNggIeTyw4XO IBBA4dy2Xi2REUldTmpBjboCS3IOenzkMKqidQBQuCmlFZTzRNUFVCXyyDVb8QelqUSc3/7iYwd6D pOppdn0pInKXRdEkHFW3cCgKA0fJUuC0cni43YsGPmqCeNe/AJovhdD8ZVRa1JKSDrjHo+qOLKfkY aP7ec0aw==; Received: from [2001:4bb8:192:ff5f:74ed:7c4f:a5ee:8dcb] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1lqeFH-009RdW-2S; Tue, 08 Jun 2021 16:06:27 +0000 From: Christoph Hellwig To: Jens Axboe Cc: Thomas Bogendoerfer , Geoff Levand , Ilya Dryomov , Dongsheng Yang , Mike Snitzer , 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 Subject: [PATCH 06/16] block: use memzero_page in zero_fill_bio Date: Tue, 8 Jun 2021 18:05:53 +0200 Message-Id: <20210608160603.1535935-7-hch@lst.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210608160603.1535935-1-hch@lst.de> References: <20210608160603.1535935-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: ceph-devel@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 --- 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);