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Thu, 19 Jan 2023 21:56:45 GMT Received: from smtpav01.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id D8E7E5804B; Thu, 19 Jan 2023 21:56:44 +0000 (GMT) Received: from smtpav01.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 3A2C158055; Thu, 19 Jan 2023 21:56:41 +0000 (GMT) Received: from [9.160.87.67] (unknown [9.160.87.67]) by smtpav01.wdc07v.mail.ibm.com (Postfix) with ESMTP; Thu, 19 Jan 2023 21:56:41 +0000 (GMT) Message-ID: <7eac2ce1-7ee9-7783-a9f2-9ec2f7019096@linux.ibm.com> Date: Thu, 19 Jan 2023 16:56:40 -0500 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.6.0 Subject: Re: [PATCH v2 09/10] iommu/s390: Push the gfp parameter to the kmem_cache_alloc()'s Content-Language: en-US To: Jason Gunthorpe , Lu Baolu , Joerg Roedel , Kevin Tian , Robin Murphy Cc: Alex Williamson , ath10k@lists.infradead.org, ath11k@lists.infradead.org, Christian Borntraeger , dri-devel@lists.freedesktop.org, iommu@lists.linux.dev, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-media@vger.kernel.org, linux-rdma@vger.kernel.org, linux-remoteproc@vger.kernel.org, linux-s390@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-tegra@vger.kernel.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, nouveau@lists.freedesktop.org, Niklas Schnelle , virtualization@lists.linux-foundation.org References: <9-v2-ce66f632bd0d+484-iommu_map_gfp_jgg@nvidia.com> From: Matthew Rosato In-Reply-To: <9-v2-ce66f632bd0d+484-iommu_map_gfp_jgg@nvidia.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: a1NkOyV4AkAwQdPDo6-7oJAzOHK_-aAo X-Proofpoint-ORIG-GUID: V_h4SUwdpkFLvdx1u4mhG5SO4ES7urEl X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.122.1 definitions=2023-01-19_14,2023-01-19_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 impostorscore=0 bulkscore=0 clxscore=1011 adultscore=0 malwarescore=0 lowpriorityscore=0 mlxlogscore=853 priorityscore=1501 mlxscore=0 spamscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2301190181 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_EF,NICE_REPLY_A,RCVD_IN_MSPIKE_H2,SPF_HELO_NONE, SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org On 1/18/23 1:00 PM, Jason Gunthorpe wrote: > dma_alloc_cpu_table() and dma_alloc_page_table() are eventually called by > iommufd through s390_iommu_map_pages() and it should not be forced to > atomic. Thread the gfp parameter through the call chain starting from > s390_iommu_map_pages(). > > Reviewed-by: Niklas Schnelle > Signed-off-by: Jason Gunthorpe > --- > arch/s390/include/asm/pci_dma.h | 5 +++-- > arch/s390/pci/pci_dma.c | 31 +++++++++++++++++-------------- > drivers/iommu/s390-iommu.c | 15 +++++++++------ > 3 files changed, 29 insertions(+), 22 deletions(-) > Reviewed-by: Matthew Rosato