netdev - [PATCH v3 10/10] iommu/s390: Use GFP

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Message-Id: <10-v3-76b587fe28df+6e3-iommu_map_gfp_jgg@nvidia.com>
Date:   Mon, 23 Jan 2023 16:36:03 -0400
From:   Jason Gunthorpe <jgg@...dia.com>
To:     Lu Baolu <baolu.lu@...ux.intel.com>,
        Joerg Roedel <joro@...tes.org>,
        Kevin Tian <kevin.tian@...el.com>,
        Matthew Rosato <mjrosato@...ux.ibm.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: [PATCH v3 10/10] iommu/s390: Use GFP_KERNEL in sleepable contexts

These contexts are sleepable, so use the proper annotation. The GFP_ATOMIC
was added mechanically in the prior patches.

Reviewed-by: Niklas Schnelle <schnelle@...ux.ibm.com>
Reviewed-by: Matthew Rosato <mjrosato@...ux.ibm.com>
Signed-off-by: Jason Gunthorpe <jgg@...dia.com>
---
 arch/s390/pci/pci_dma.c    | 2 +-
 drivers/iommu/s390-iommu.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/s390/pci/pci_dma.c b/arch/s390/pci/pci_dma.c
index 2f6d05d6da4f76..2d9b01d7ca4c5c 100644
--- a/arch/s390/pci/pci_dma.c
+++ b/arch/s390/pci/pci_dma.c
@@ -579,7 +579,7 @@ int zpci_dma_init_device(struct zpci_dev *zdev)
 
 	spin_lock_init(&zdev->iommu_bitmap_lock);
 
-	zdev->dma_table = dma_alloc_cpu_table(GFP_ATOMIC);
+	zdev->dma_table = dma_alloc_cpu_table(GFP_KERNEL);
 	if (!zdev->dma_table) {
 		rc = -ENOMEM;
 		goto out;
diff --git a/drivers/iommu/s390-iommu.c b/drivers/iommu/s390-iommu.c
index 654ec4411fe36c..7dcfffed260e6b 100644
--- a/drivers/iommu/s390-iommu.c
+++ b/drivers/iommu/s390-iommu.c
@@ -52,7 +52,7 @@ static struct iommu_domain *s390_domain_alloc(unsigned domain_type)
 	if (!s390_domain)
 		return NULL;
 
-	s390_domain->dma_table = dma_alloc_cpu_table(GFP_ATOMIC);
+	s390_domain->dma_table = dma_alloc_cpu_table(GFP_KERNEL);
 	if (!s390_domain->dma_table) {
 		kfree(s390_domain);
 		return NULL;
-- 
2.39.0