netdev - RE: [PATCH 6/8] iommu/intel: Add a gfp parameter to alloc_pgtable

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Date:   Tue, 17 Jan 2023 03:35:08 +0000
From:   "Tian, Kevin" <kevin.tian@...el.com>
To:     Jason Gunthorpe <jgg@...dia.com>,
        Lu Baolu <baolu.lu@...ux.intel.com>,
        Joerg Roedel <joro@...tes.org>,
        Matthew Rosato <mjrosato@...ux.ibm.com>,
        Robin Murphy <robin.murphy@....com>
CC:     Alex Williamson <alex.williamson@...hat.com>,
        "ath10k@...ts.infradead.org" <ath10k@...ts.infradead.org>,
        "ath11k@...ts.infradead.org" <ath11k@...ts.infradead.org>,
        Christian Borntraeger <borntraeger@...ux.ibm.com>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        "iommu@...ts.linux.dev" <iommu@...ts.linux.dev>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>,
        "linux-media@...r.kernel.org" <linux-media@...r.kernel.org>,
        "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
        "linux-remoteproc@...r.kernel.org" <linux-remoteproc@...r.kernel.org>,
        "linux-s390@...r.kernel.org" <linux-s390@...r.kernel.org>,
        "linux-stm32@...md-mailman.stormreply.com" 
        <linux-stm32@...md-mailman.stormreply.com>,
        "linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
        "linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "nouveau@...ts.freedesktop.org" <nouveau@...ts.freedesktop.org>,
        Niklas Schnelle <schnelle@...ux.ibm.com>,
        "virtualization@...ts.linux-foundation.org" 
        <virtualization@...ts.linux-foundation.org>
Subject: RE: [PATCH 6/8] iommu/intel: Add a gfp parameter to
 alloc_pgtable_page()

> From: Jason Gunthorpe <jgg@...dia.com>
> Sent: Saturday, January 7, 2023 12:43 AM
> 
> @@ -2676,7 +2676,7 @@ static int copy_context_table(struct intel_iommu
> *iommu,
>  			if (!old_ce)
>  				goto out;
> 
> -			new_ce = alloc_pgtable_page(iommu->node);
> +			new_ce = alloc_pgtable_page(iommu->node,
> GFP_KERNEL);

GFP_ATOMIC