From patchwork Thu Jul 29 07:34:47 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yongji Xie X-Patchwork-Id: 12407949 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 B1B84C4320E for ; Thu, 29 Jul 2021 07:36:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9B7D661057 for ; Thu, 29 Jul 2021 07:36:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234861AbhG2HgN (ORCPT ); Thu, 29 Jul 2021 03:36:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46612 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234780AbhG2HgJ (ORCPT ); Thu, 29 Jul 2021 03:36:09 -0400 Received: from mail-pj1-x1030.google.com (mail-pj1-x1030.google.com [IPv6:2607:f8b0:4864:20::1030]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B9BE1C0613CF for ; Thu, 29 Jul 2021 00:36:03 -0700 (PDT) Received: by mail-pj1-x1030.google.com with SMTP id m10-20020a17090a34cab0290176b52c60ddso7955254pjf.4 for ; Thu, 29 Jul 2021 00:36:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=omwDqSVrMraB8zPCmbagpNybYhuwUgLxPSaQSPVKs0I=; b=naBlQMPkB/0DkelUJr1LWVocrdIW6Peexm/f7/BA/529HP7dXnwA1mEQRpxsTu/nyt 5tSNHUAPj0I23nUM3cEaLX7W0FcfFZ/nIw/hTE0AbmJOLKU6x4Our6Q4VO6WxlOJJCEK v75eCTZ2rkY4QZ4y+7yLjNGET7/dDbliCxmVK70acQ5r5hI7NYOBP6q5q2H55CRB27Yw JgDWvRBoG8Q2BXzdSiM0/OI45aNpXQyYEVdGOMn/e2B4DUPsbSxolGo9ZcFYLJ9z3d2g n1NF1lN2f4dqSTn2d4cGD5EJW0DwNvhKakHLHdWUFAi1yGntoi8qBSZfWJo845VSX0hW z1jA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=omwDqSVrMraB8zPCmbagpNybYhuwUgLxPSaQSPVKs0I=; b=lCrxARNjytY7y7TKHGII4hTtdalNMDm3Jgbgw1keziyDo7nSArvVPRzog/FsjZgux3 6xhnPBjR9CukBk1+bc9+g0IdB4+z3w4UXyVsMqd97fm6tU5zU2iu+YT3HiLR2MscQok3 1gwg4nPeLbm+qhs6IChao+1x9fTwvL2ftPbgvGYg4/0YslDxt+bMws/gn2EsI+qGkEuL A9JSBrUUqHiSALywwutPsCjla2MzdGNmrkjjnwldNaJobI0v7VH7aMUB+R7HBr+wueX8 3i/ccAdI+fH5vZ/hMJDcsSj7X1rw5iXJDvEchFwe7rMJFRYlXiOspM0PbXCJ4w3vPzsK CR5w== X-Gm-Message-State: AOAM533SxGGMhHXU30y3hbNjtO8F2JXO5ZYeFoCTw/UM3Igh5qjjzQ52 jm9BR+who+ibBkzC6YFGIWR7 X-Google-Smtp-Source: ABdhPJxHbuy/f6Ntcbrd8G6sqB1/UuTPykG+LdmRwbmQ8qaXm3ieni6kdT8Dl8Ys4/OxQN2NjqkIeA== X-Received: by 2002:aa7:9a4e:0:b029:32b:34a7:2e4e with SMTP id x14-20020aa79a4e0000b029032b34a72e4emr3941364pfj.20.1627544163282; Thu, 29 Jul 2021 00:36:03 -0700 (PDT) Received: from localhost ([139.177.225.253]) by smtp.gmail.com with ESMTPSA id k198sm2457702pfd.148.2021.07.29.00.36.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 29 Jul 2021 00:36:02 -0700 (PDT) From: Xie Yongji To: mst@redhat.com, jasowang@redhat.com, stefanha@redhat.com, sgarzare@redhat.com, parav@nvidia.com, hch@infradead.org, christian.brauner@canonical.com, rdunlap@infradead.org, willy@infradead.org, viro@zeniv.linux.org.uk, axboe@kernel.dk, bcrl@kvack.org, corbet@lwn.net, mika.penttila@nextfour.com, dan.carpenter@oracle.com, joro@8bytes.org, gregkh@linuxfoundation.org, zhe.he@windriver.com, xiaodong.liu@intel.com, joe@perches.com Cc: songmuchun@bytedance.com, virtualization@lists.linux-foundation.org, netdev@vger.kernel.org, kvm@vger.kernel.org, linux-fsdevel@vger.kernel.org, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org Subject: [PATCH v10 01/17] iova: Export alloc_iova_fast() and free_iova_fast() Date: Thu, 29 Jul 2021 15:34:47 +0800 Message-Id: <20210729073503.187-2-xieyongji@bytedance.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210729073503.187-1-xieyongji@bytedance.com> References: <20210729073503.187-1-xieyongji@bytedance.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Export alloc_iova_fast() and free_iova_fast() so that some modules can use it to improve iova allocation efficiency. Signed-off-by: Xie Yongji --- drivers/iommu/iova.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/iommu/iova.c b/drivers/iommu/iova.c index b6cf5f16123b..3941ed6bb99b 100644 --- a/drivers/iommu/iova.c +++ b/drivers/iommu/iova.c @@ -521,6 +521,7 @@ alloc_iova_fast(struct iova_domain *iovad, unsigned long size, return new_iova->pfn_lo; } +EXPORT_SYMBOL_GPL(alloc_iova_fast); /** * free_iova_fast - free iova pfn range into rcache @@ -538,6 +539,7 @@ free_iova_fast(struct iova_domain *iovad, unsigned long pfn, unsigned long size) free_iova(iovad, pfn); } +EXPORT_SYMBOL_GPL(free_iova_fast); #define fq_ring_for_each(i, fq) \ for ((i) = (fq)->head; (i) != (fq)->tail; (i) = ((i) + 1) % IOVA_FQ_SIZE)