From patchwork Tue Jul 13 08:46:40 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yongji Xie X-Patchwork-Id: 12373163 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 A7BAEC11F6A for ; Tue, 13 Jul 2021 08:47:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8E45860725 for ; Tue, 13 Jul 2021 08:47:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234891AbhGMIuT (ORCPT ); Tue, 13 Jul 2021 04:50:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50098 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234855AbhGMIuQ (ORCPT ); Tue, 13 Jul 2021 04:50:16 -0400 Received: from mail-pg1-x536.google.com (mail-pg1-x536.google.com [IPv6:2607:f8b0:4864:20::536]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 03433C0613EF for ; Tue, 13 Jul 2021 01:47:27 -0700 (PDT) Received: by mail-pg1-x536.google.com with SMTP id k20so14024081pgg.7 for ; Tue, 13 Jul 2021 01:47:26 -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=NFS9sf7oZs6OfC3ePyWxWOFYPRWYuHJEmSuowU4+A/AN9SkO5oklzsdY2KXu8XLaK/ RtjCDzBNyMsdIgaq+gdMB7X3iSEzGHSn43PT3yYRI1O50eXo3lcMJohxW+FjS73Fgzhz cByWfSfvdlPZnHSM2paax8FVHByTKAKS59DKXws2obexLNMYBSz4JwJpnlbAFJbXemnl muonmUyFpQcCa6tNLtEtmhQrzdudI5qv9lDhSdlcAC7ix0U02RmFBKcz7hR6i8/sr/Il miY9BiEVBFNOzq9HdHWN3Ltqrr/qolEO7tzr92l33+PTeqr/Mh3jyfO+z8sDGyszPXwg lRGg== 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=Bqk4husQiaJotbgWse18viU7TXlwsDudskeZ5TBTmoBTbUhkGDwSAXrXYKAM86MWla wrsFl0kxHfjeSOJdr9CSACjqPuYwNx7rp969UU22qq6cH1g6Jsnh3msIMNEKRWVM1EYr e67+gHMKMxInzy6Q7ohh2ypAAQfyXcaaE1sn+62Igu6hP0ZGD7Zimc9LlyyG5OESyyCF 863J46bPJSDEY3XbvT9SsJnl1yjFfSWNGGtWZvuiwSM5K5jFYAGLpkv3pxvzEzaPMIqa BDRlcalbDQ0+7RVFvLWDphe34g2JaqgUu8th91c5JtN268Al8RUrzWa5veXHaTEFZZi9 IdUA== X-Gm-Message-State: AOAM533abWUvfw/d6gN+8e4GqZNh9/bfHIpu0OeyB2cYPhZDViRjc6fs Xkv0eKRiBlKMnsFomu0d22rP X-Google-Smtp-Source: ABdhPJy1XC0KnBeCN6bWa8CB2iE99dOa7TYAMnl/f4lHXuMSNKXTJU6n9g1wg0BApWWsX8PXSpPEXw== X-Received: by 2002:a63:1266:: with SMTP id 38mr3331831pgs.154.1626166046577; Tue, 13 Jul 2021 01:47:26 -0700 (PDT) Received: from localhost ([139.177.225.253]) by smtp.gmail.com with ESMTPSA id j21sm18231301pfn.35.2021.07.13.01.47.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 13 Jul 2021 01:47:26 -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 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 v9 01/17] iova: Export alloc_iova_fast() and free_iova_fast() Date: Tue, 13 Jul 2021 16:46:40 +0800 Message-Id: <20210713084656.232-2-xieyongji@bytedance.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210713084656.232-1-xieyongji@bytedance.com> References: <20210713084656.232-1-xieyongji@bytedance.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@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)