Received: by 2002:a05:6a10:22f:0:0:0:0 with SMTP id 15csp976798pxk; Fri, 25 Sep 2020 02:59:26 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwg8EjfojaQkxSyUg0o4/hsSG8wQS7xCxTlRNIi4QDr0YV79k74WfAra5Jj9WXGsYdMrpYR X-Received: by 2002:a50:fc83:: with SMTP id f3mr426108edq.102.1601027966652; Fri, 25 Sep 2020 02:59:26 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1601027966; cv=none; d=google.com; s=arc-20160816; b=qZA/OcEcplziDpz2E0+6k38/qbKRDUV0dV8c3gTSzwkc3BW14I94DajSJeUj/mNjRG INkcS26dP4i4xQ47MSgwgxpDkLNVg0cax+TtL8vM2XtSd16r4focCU1TZdm+jZJX1Vii ETQwUhHwLeonxwjIiW+LEzBT/oe1zJkdZLutR5RMwoWrn7HE0iasR1NEvnQaGGeFrLVZ nzoDtA4buIW1UjptVfPStX5VON1kMza3y2FSHH4P2RZI5xfv/nn6R8H8OIo3Z40VYEBk LjRetW3T4iSIMPhRJfJ6AhktlFWpk3qb0AGDLbPRMqMtdFef8mokHBKYdZwet8Gy98fc vr2A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:mime-version:message-id:date:subject:cc:to:from; bh=O2+GzJxUvkfNNRiUUcmRg/og/kaSCl8k5ORA6z7c4F4=; b=CtAX2Zn1fTD4SNsumUe+ZTg5NPQ/oXDiMnKq1UIKnGIX3ep5PNTGthYFuha3NtixQ+ aHd3HEgPBUglPuFTTK8WpKrwMY754Wq+3YwvaMVToEoe6GUH2GLzpKL/UaMZHKx+ufHh fgprG0fGBHupBvx7kCfpTxwh3u4gCAjsDzwSyn8HLFarcGIsKFWKfDZbaUA3wPHvfLxj VRqX5d/2tQVLyopFMi9SVConehIpVC1Gy1gpZEWt/7aPue++ud87gcF3G3ThmRkwNRxx WNGC7il4VNLGkdkfwHD8RioJUzPgC0NEDRDcDUyJr9ycAe0R+7+BbGh43tXsu/hrQR/3 1pQw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id gj3si1485291ejb.728.2020.09.25.02.59.03; Fri, 25 Sep 2020 02:59:26 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727895AbgIYJ4F (ORCPT + 99 others); Fri, 25 Sep 2020 05:56:05 -0400 Received: from szxga06-in.huawei.com ([45.249.212.32]:38734 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727495AbgIYJ4B (ORCPT ); Fri, 25 Sep 2020 05:56:01 -0400 Received: from DGGEMS407-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id CF78663B340DED11E1FA; Fri, 25 Sep 2020 17:55:56 +0800 (CST) Received: from localhost.localdomain (10.69.192.58) by DGGEMS407-HUB.china.huawei.com (10.3.19.207) with Microsoft SMTP Server id 14.3.487.0; Fri, 25 Sep 2020 17:55:47 +0800 From: John Garry To: , CC: , , , , , , John Garry Subject: [PATCH 0/2] iommu/iova: Solve longterm IOVA issue Date: Fri, 25 Sep 2020 17:51:07 +0800 Message-ID: <1601027469-221812-1-git-send-email-john.garry@huawei.com> X-Mailer: git-send-email 2.8.1 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.69.192.58] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This series contains a patch to solve the longterm IOVA issue which leizhen originally tried to address at [0]. I also included the small optimisation from Cong Wang, which never seems to be have been accepted [1]. There was some debate of the other patches in that series, but this one is quite straightforward. @Cong Wang, Please resend your series if prefer I didn't upstream your patch. [0] https://lore.kernel.org/linux-iommu/20190815121104.29140-3-thunder.leizhen@huawei.com/ [1] https://lore.kernel.org/linux-iommu/4b74d40a-22d1-af53-fcb6-5d70183705a8@huawei.com/ Cong Wang (1): iommu: avoid taking iova_rbtree_lock twice John Garry (1): iommu/iova: Flush CPU rcache for when a depot fills drivers/iommu/iova.c | 33 ++++++++++++++++++++++----------- 1 file changed, 22 insertions(+), 11 deletions(-) -- 2.26.2