vfio/hisi: 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: Yishai Hadas <yishaih@nvidia.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20230108154427.32609-5-yishaih@nvidia.comSigned-off-by: Alex Williamson <alex.williamson@redhat.com>

drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c

@@ -744,7 +744,7 @@ hisi_acc_vf_pci_resume(struct hisi_acc_vf_core_device *hisi_acc_vdev)
 {
 	struct hisi_acc_vf_migration_file *migf;
 
-	migf = kzalloc(sizeof(*migf), GFP_KERNEL);
+	migf = kzalloc(sizeof(*migf), GFP_KERNEL_ACCOUNT);
 	if (!migf)
 		return ERR_PTR(-ENOMEM);
 
@@ -863,7 +863,7 @@ hisi_acc_open_saving_migf(struct hisi_acc_vf_core_device *hisi_acc_vdev)
 	struct hisi_acc_vf_migration_file *migf;
 	int ret;
 
-	migf = kzalloc(sizeof(*migf), GFP_KERNEL);
+	migf = kzalloc(sizeof(*migf), GFP_KERNEL_ACCOUNT);
 	if (!migf)
 		return ERR_PTR(-ENOMEM);