From patchwork Tue Jun 15 14:13:22 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yongji Xie X-Patchwork-Id: 12321919 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 15610C48BE8 for ; Tue, 15 Jun 2021 14:16:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E6C3461482 for ; Tue, 15 Jun 2021 14:16:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231629AbhFOOSV (ORCPT ); Tue, 15 Jun 2021 10:18:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36982 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231357AbhFOORE (ORCPT ); Tue, 15 Jun 2021 10:17:04 -0400 Received: from mail-pj1-x102c.google.com (mail-pj1-x102c.google.com [IPv6:2607:f8b0:4864:20::102c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 19C9DC06114C for ; Tue, 15 Jun 2021 07:13:58 -0700 (PDT) Received: by mail-pj1-x102c.google.com with SMTP id s17-20020a17090a8811b029016e89654f93so1900886pjn.1 for ; Tue, 15 Jun 2021 07:13:58 -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=uqLi4n/sYt1V7zlXO7PEWrtyAjrct3aaeB0JWe6pldc=; b=hdxih8MIuJMG7DQ8ZmQrXh42xZ0vXefzPJ9Is4yeGeXwK9ruXKC6EBFn8DHqD+qX4B mXWvCicjq9IAlBh5wT9cKgIXtBv2V1Jt8Ml734PbO5KZR6ZfwAOwp2HqEzKJFVZ6LEjc jpr3DR3C7jV6q+xycSeDEyiUG5tdTsrQyhBszjQhllpSC6ihPrnYO3rbVtT0URaBUp8J Cbzhv1Hxb4BR27Ug0G/lD303gI6VNhL+3mm6r0pj60g/Lc5g3jB3iCJcKlWZyawmvu9X Mql527KcPIDMqPFgJV5a0yXFc8HVrjnBAmxl4aFB4nfYUtPTjOuU1i+1kYhrIB4V+EUy 44+Q== 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=uqLi4n/sYt1V7zlXO7PEWrtyAjrct3aaeB0JWe6pldc=; b=ptBLyi65i+OXE7IlsPiTjd2hfStCRkkQNjAnf0n8j90jEskYyTMqoHiQa85tZC5TCn JZ6VVQcKGjZoVrSG9KBCSnio/J4kqsDCxb9YZMtuRbHGAovATJuB+wWcvPWf7scSZdRN 7qj6Oz47eg6HYFnu4iPn938fIKK57DVAhkQOYHjMZH+ILQoeCtrAPQE7yr6cdytJI5Bo lo5LJTuCt2xis7mPfRlVTYibFXgpWxihaExyZzycIVTtdrMKsSJa5rSH7kHo8AKIg+NK T8z74wL8Ysh3/SOiGJnThLDkYETDU1k5XeP3fQFNd5ufXK6HTl7Ol011Vx4clDOkk6ie kmzA== X-Gm-Message-State: AOAM532X1uN/Z/5hiWnZvXQLfXyCXbJxvHj9unEMCjNgbgMhhrQtdGRS 8duxtCepbacnhGofk2IHtO0n X-Google-Smtp-Source: ABdhPJwxO854wUtIh12JMTHVMysUOJZdmysPCLLcn5itcs7UedE9FRLaM9NJQ6d/dAmz1Dc2dO9hng== X-Received: by 2002:a17:903:152:b029:10f:f6f7:ede5 with SMTP id r18-20020a1709030152b029010ff6f7ede5mr4636909plc.20.1623766437651; Tue, 15 Jun 2021 07:13:57 -0700 (PDT) Received: from localhost ([139.177.225.241]) by smtp.gmail.com with ESMTPSA id t14sm17322236pgm.9.2021.06.15.07.13.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 15 Jun 2021 07:13:57 -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 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 v8 01/10] iova: Export alloc_iova_fast() and free_iova_fast(); Date: Tue, 15 Jun 2021 22:13:22 +0800 Message-Id: <20210615141331.407-2-xieyongji@bytedance.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210615141331.407-1-xieyongji@bytedance.com> References: <20210615141331.407-1-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 b7ecd5b08039..59916b4b7fe9 100644 --- a/drivers/iommu/iova.c +++ b/drivers/iommu/iova.c @@ -518,6 +518,7 @@ 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 @@ -535,6 +536,7 @@ 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)