From patchwork Tue Jun 8 16:05:56 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 12307413 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 6FE25C4743D for ; Tue, 8 Jun 2021 16:07:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 571856120F for ; Tue, 8 Jun 2021 16:07:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232198AbhFHQJU (ORCPT ); Tue, 8 Jun 2021 12:09:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53056 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232800AbhFHQIk (ORCPT ); Tue, 8 Jun 2021 12:08:40 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CAF11C061787; Tue, 8 Jun 2021 09:06:47 -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=HwW7/FcNSPjoRVBBgiBQclHiHBGFA68ApXQNMgI7IuU=; b=ZySEe4D5FHucQqfuf1IfwHVuKW WEHowatN5Tz2b3Z9grV/ImybjMv//WEMk+nNaqsU/kHB1CkTwBz9uwV6tqL+NLTC16eFXX4KUjdlm KNe+VlkXw296qZipYK9wua0s0mArIUMI5dTf7VnXNQACY7jfkA0ecBfVzsyPgispTyntJziaW50av bxo55suRvkOWzp3BY6bVQf82DwObcQ9EC8uIvE37Y8razpBbm9ai7HDfedZaZTWb5CjY0Y0uFMxvS xqYCerXgjUgMWiaesg9WqaPvdlFa/PXNUX/k+E9vjO/L20OtCWESv7G+isYWlB5y2kI5cj2BK3k6N RoH6CpdA==; 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 1lqeFQ-009Rge-Pv; Tue, 08 Jun 2021 16:06:37 +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 09/16] ps3disk: use memcpy_{from,to}_bvec Date: Tue, 8 Jun 2021 18:05:56 +0200 Message-Id: <20210608160603.1535935-10-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 the bvec helpers instead of open coding the copy. Signed-off-by: Christoph Hellwig Signed-off-by: Ira Weiny --- drivers/block/ps3disk.c | 19 +++---------------- 1 file changed, 3 insertions(+), 16 deletions(-) diff --git a/drivers/block/ps3disk.c b/drivers/block/ps3disk.c index ba3ece56cbb3..f2eb0225814f 100644 --- a/drivers/block/ps3disk.c +++ b/drivers/block/ps3disk.c @@ -84,26 +84,13 @@ static void ps3disk_scatter_gather(struct ps3_storage_device *dev, unsigned int offset = 0; struct req_iterator iter; struct bio_vec bvec; - unsigned int i = 0; - size_t size; - void *buf; rq_for_each_segment(bvec, req, iter) { - unsigned long flags; - dev_dbg(&dev->sbd.core, "%s:%u: bio %u: %u sectors from %llu\n", - __func__, __LINE__, i, bio_sectors(iter.bio), - iter.bio->bi_iter.bi_sector); - - size = bvec.bv_len; - buf = bvec_kmap_irq(&bvec, &flags); if (gather) - memcpy(dev->bounce_buf+offset, buf, size); + memcpy_from_bvec(dev->bounce_buf + offset, &bvec); else - memcpy(buf, dev->bounce_buf+offset, size); - offset += size; - flush_kernel_dcache_page(bvec.bv_page); - bvec_kunmap_irq(buf, &flags); - i++; + memcpy_to_bvec(&bvec, dev->bounce_buf + offset); + offset += bvec.bv_len; } }