Meanwhile, rename related helpers. No functional change is intended.
Signed-off-by: Yi Liu
Reviewed-by: Kevin Tian
Reviewed-by: Eric Auger
---
virt/kvm/vfio.c | 115
1 file changed, 58 insertions(+), 57 deletions(-)
diff --git a/virt/kvm/vfio.c b/virt/kvm/vfio.c
index 8bac308ba630..857d6ba349e1 100644
--- a/virt/kvm/vfio.c
+++ b/virt/kvm/vfio.c
@@ -21,7 +21,7 @@
#include
#endif
-struct kvm_vfio_group {
+struct kvm_vfio_file {
struct list_head node;
struct file *file;
#ifdef CONFIG_SPAPR_TCE_IOMMU
@@ -30,7 +30,7 @@ struct kvm_vfio_group {
};
struct kvm_vfio {
- struct list_head group_list;
+ struct list_head file_list;
struct mutex lock;
bool noncoherent;
};
@@ -98,34 +98,35 @@ static struct iommu_group *kvm_vfio_file_iommu_group(struct
file *file)
}
static void kvm_spapr_tce_release_vfio_group(struct kvm *kvm,
-struct kvm_vfio_group *kvg)
+struct kvm_vfio_file *kvf)
{
- if (WARN_ON_ONCE(!kvg->iommu_group))
+ if (WARN_ON_ONCE(!kvf->iommu_group))
return;
- kvm_spapr_tce_release_iommu_group(kvm, kvg->iommu_group);
- iommu_group_put(kvg->iommu_group);
- kvg->iommu_group = NULL;
+ kvm_spapr_tce_release_iommu_group(kvm, kvf->iommu_group);
+ iommu_group_put(kvf->iommu_group);
+ kvf->iommu_group = NULL;
}
#endif
/*
- * Groups can use the same or different IOMMU domains. If the same then
- * adding a new group may change the coherency of groups we've previously
- * been told about. We don't want to care about any of that so we retest
- * each group and bail as soon as we find one that's noncoherent. This
- * means we only ever [un]register_noncoherent_dma once for the whole device.
+ * Groups/devices can use the same or different IOMMU domains. If the same
+ * then adding a new group/device may change the coherency of groups/devices
+ * we've previously been told about. We don't want to care about any of
+ * that so we retest each group/device and bail as soon as we find one that's
+ * noncoherent. This means we only ever [un]register_noncoherent_dma once
+ * for the whole device.
*/
static void kvm_vfio_update_coherency(struct kvm_device *dev)
{
struct kvm_vfio *kv = dev->private;
bool noncoherent = false;
- struct kvm_vfio_group *kvg;
+ struct kvm_vfio_file *kvf;
mutex_lock(&kv->lock);
- list_for_each_entry(kvg, &kv->group_list, node) {
- if (!kvm_vfio_file_enforced_coherent(kvg->file)) {
+ list_for_each_entry(kvf, &kv->file_list, node) {
+ if (!kvm_vfio_file_enforced_coherent(kvf->file)) {
noncoherent = true;
break;
}
@@ -143,10 +144,10 @@ static void kvm_vfio_update_coherency(struct kvm_device
*dev)
mutex_unlock(&kv->lock);
}
-static int kvm_vfio_group_add(struct kvm_device *dev, unsigned int fd)
+static int kvm_vfio_file_add(struct kvm_device *dev, unsigned int fd)
{
struct kvm_vfio *kv = dev->private;
- struct kvm_vfio_group *kvg;
+ struct kvm_vfio_file *kvf;
struct file *filp;
int ret;
@@ -162,27 +163,27 @@ static int kvm_vfio_group_add(struct kvm_device *dev,
unsigned int fd)
mutex_lock(&kv->lock);
- list_for_each_entry(kvg, &kv->group_list, node) {
- if (kvg->file == filp) {
+ list_for_each_entry(kvf, &kv->file_list, node) {
+ if (kvf->file == filp) {
ret = -EEXIST;
goto err_unlock;
}
}
- kvg = kzalloc(sizeof(*kvg), GFP_KERNEL_ACCOUNT);
- if (!kvg) {
+ kvf = kzalloc(sizeof(*kvf), GFP_KERNEL_ACCOUNT);
+ if (!kvf) {
ret = -ENOMEM;
goto err_unlock;
}
- kvg->file = filp;
- list_add_tail(&kvg->node, &kv->group_list);
+ kvf->file = filp;
+ list_add_tail(&kvf->node, &kv->file_list);
kvm_arch_start_assignment(dev->kvm);
mutex_unlock(&kv->lock);
- kvm_vfio_file_set_kvm(kvg->file, dev->kvm);
+ kvm_vfio_file_set_kvm(kvf->file, dev->kvm);
kvm_vfio_update_coherency(dev);
return 0;
@@ -193,10 +194,10 @@ static int kvm_vfio_group_add(struct kvm_device *dev,
unsigned int fd)
return ret;
}
-static int kvm_vfio_group_del(struct kvm_device *dev, unsigned int fd)
+static int kvm_vfio_file_del(struct kvm_device *dev, unsigned int fd)
{
struct kvm_vfio *kv = dev->private;
- struct kvm_vfio_group *kvg;
+ struct kvm_vfio_file *kvf;
struct fd f;
int ret;
@@ -208,18 +209,18 @@ static int kvm_vfio_group_del(struct kvm_device *dev,
unsigned int fd)
mutex_lock(&kv->lock);
- list_for_each_entry(kvg, &kv->group_list, node) {
-
