netdev - Re: [PATCH v2 09/10] iommu/s390: Push the gfp parameter to the kmem_cache

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Message-ID: <7eac2ce1-7ee9-7783-a9f2-9ec2f7019096@linux.ibm.com>
Date:   Thu, 19 Jan 2023 16:56:40 -0500
From:   Matthew Rosato <mjrosato@...ux.ibm.com>
To:     Jason Gunthorpe <jgg@...dia.com>,
        Lu Baolu <baolu.lu@...ux.intel.com>,
        Joerg Roedel <joro@...tes.org>,
        Kevin Tian <kevin.tian@...el.com>,
        Robin Murphy <robin.murphy@....com>
Cc:     Alex Williamson <alex.williamson@...hat.com>,
        ath10k@...ts.infradead.org, ath11k@...ts.infradead.org,
        Christian Borntraeger <borntraeger@...ux.ibm.com>,
        dri-devel@...ts.freedesktop.org, iommu@...ts.linux.dev,
        kvm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-arm-msm@...r.kernel.org, linux-media@...r.kernel.org,
        linux-rdma@...r.kernel.org, linux-remoteproc@...r.kernel.org,
        linux-s390@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-tegra@...r.kernel.org, linux-wireless@...r.kernel.org,
        netdev@...r.kernel.org, nouveau@...ts.freedesktop.org,
        Niklas Schnelle <schnelle@...ux.ibm.com>,
        virtualization@...ts.linux-foundation.org
Subject: Re: [PATCH v2 09/10] iommu/s390: Push the gfp parameter to the
 kmem_cache_alloc()'s

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 <schnelle@...ux.ibm.com>
> Signed-off-by: Jason Gunthorpe <jgg@...dia.com>
> ---
>  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 <mjrosato@...ux.ibm.com>