Commit 4a6c971a authored by Yishai Hadas's avatar Yishai Hadas Committed by Alex Williamson
Browse files

vfio/fsl-mc: Use GFP_KERNEL_ACCOUNT for userspace persistent allocations 



Use GFP_KERNEL_ACCOUNT for userspace persistent allocations.

The GFP_KERNEL_ACCOUNT option lets the memory allocator know that this
is untrusted allocation triggered from userspace and should be a subject
of kmem accounting, and as such it is controlled by the cgroup
mechanism.

Signed-off-by: default avatarYishai Hadas <yishaih@nvidia.com>
Reviewed-by: default avatarJason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20230108154427.32609-6-yishaih@nvidia.com


Signed-off-by: default avatarAlex Williamson <alex.williamson@redhat.com>
parent cb8285b8

drivers/vfio/fsl-mc/vfio_fsl_mc.c

+1 −1
Original line number Diff line number Diff line
@@ -28,7 +28,7 @@ static int vfio_fsl_mc_open_device(struct vfio_device *core_vdev) 
	int i;



	vdev->regions = kcalloc(count, sizeof(struct vfio_fsl_mc_region),

				GFP_KERNEL);

				GFP_KERNEL_ACCOUNT);

	if (!vdev->regions)

		return -ENOMEM;

drivers/vfio/fsl-mc/vfio_fsl_mc_intr.c

+2 −2
Original line number Diff line number Diff line
@@ -29,7 +29,7 @@ static int vfio_fsl_mc_irqs_allocate(struct vfio_fsl_mc_device *vdev) 


	irq_count = mc_dev->obj_desc.irq_count;



	mc_irq = kcalloc(irq_count, sizeof(*mc_irq), GFP_KERNEL);

	mc_irq = kcalloc(irq_count, sizeof(*mc_irq), GFP_KERNEL_ACCOUNT);

	if (!mc_irq)

		return -ENOMEM;
@@ -77,7 +77,7 @@ static int vfio_set_trigger(struct vfio_fsl_mc_device *vdev, 
	if (fd < 0) /* Disable only */

		return 0;



	irq->name = kasprintf(GFP_KERNEL, "vfio-irq[%d](%s)",

	irq->name = kasprintf(GFP_KERNEL_ACCOUNT, "vfio-irq[%d](%s)",

			    hwirq, dev_name(&vdev->mc_dev->dev));

	if (!irq->name)

		return -ENOMEM;