diff mbox series

[v2,08/10] iommu/intel: Use GFP_KERNEL in sleepable contexts

Message ID 8-v2-ce66f632bd0d+484-iommu_map_gfp_jgg@nvidia.com (mailing list archive)
State New, archived
Headers show
Series Let iommufd charge IOPTE allocations to the memory cgroup | expand

Commit Message

Jason Gunthorpe Jan. 18, 2023, 6 p.m. UTC 
These contexts are sleepable, so use the proper annotation. The GFP_ATOMIC
was added mechanically in the prior patches.

Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
---
 drivers/iommu/intel/iommu.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Tian, Kevin Jan. 19, 2023, 3:52 a.m. UTC | #1 
> From: Jason Gunthorpe <jgg@nvidia.com>
> Sent: Thursday, January 19, 2023 2:01 AM
> 
> These contexts are sleepable, so use the proper annotation. The
> GFP_ATOMIC
> was added mechanically in the prior patches.
> 
> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Baolu Lu Jan. 19, 2023, noon UTC | #2 
On 2023/1/19 2:00, Jason Gunthorpe wrote:
> These contexts are sleepable, so use the proper annotation. The GFP_ATOMIC
> was added mechanically in the prior patches.
> 
> Signed-off-by: Jason Gunthorpe<jgg@nvidia.com>

Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>

Best regards,
baolu
diff mbox series

Patch

diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c
index e95f7703ce7b83..a1a66798e1f06c 100644
--- a/drivers/iommu/intel/iommu.c
+++ b/drivers/iommu/intel/iommu.c
@@ -2372,7 +2372,7 @@  static int iommu_domain_identity_map(struct dmar_domain *domain,
 
 	return __domain_mapping(domain, first_vpfn,
 				first_vpfn, last_vpfn - first_vpfn + 1,
-				DMA_PTE_READ|DMA_PTE_WRITE, GFP_ATOMIC);
+				DMA_PTE_READ|DMA_PTE_WRITE, GFP_KERNEL);
 }
 
 static int md_domain_init(struct dmar_domain *domain, int guest_width);
@@ -2680,7 +2680,7 @@  static int copy_context_table(struct intel_iommu *iommu,
 			if (!old_ce)
 				goto out;
 
-			new_ce = alloc_pgtable_page(iommu->node, GFP_ATOMIC);
+			new_ce = alloc_pgtable_page(iommu->node, GFP_KERNEL);
 			if (!new_ce)
 				goto out_unmap;