[PULL 29/42] vfio/migration: Add vfio_add_bytes_transferred()

["Cédric Le Goater" <clg@redhat.com>]

From: "Maciej S. Szmigiero" <maciej.szmigiero@oracle.com>

This way bytes_transferred can also be incremented in other translation
units than migration.c.

Signed-off-by: Maciej S. Szmigiero <maciej.szmigiero@oracle.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/d1fbc27ac2417b49892f354ba20f6c6b3f7209f8.1741124640.git.maciej.szmigiero@oracle.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
---
 include/hw/vfio/vfio-common.h | 1 +
 hw/vfio/migration.c           | 7 ++++++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/include/hw/vfio/vfio-common.h b/include/hw/vfio/vfio-common.h
index ac35136a11051b079cd9d04e6becd344a0e0f7e7..5c84ebb0029853bf408ffb7d308a603435bd234b 100644
--- a/include/hw/vfio/vfio-common.h
+++ b/include/hw/vfio/vfio-common.h
@@ -274,6 +274,7 @@ void vfio_unblock_multiple_devices_migration(void);
 bool vfio_viommu_preset(VFIODevice *vbasedev);
 int64_t vfio_mig_bytes_transferred(void);
 void vfio_reset_bytes_transferred(void);
+void vfio_mig_add_bytes_transferred(unsigned long val);
 bool vfio_device_state_is_running(VFIODevice *vbasedev);
 bool vfio_device_state_is_precopy(VFIODevice *vbasedev);
 
diff --git a/hw/vfio/migration.c b/hw/vfio/migration.c
index 5532787be63b9925a70202536a7f5796ea1fc8d1..51c056e152aae694ecc1b590c1a94dd8e5277c4a 100644
--- a/hw/vfio/migration.c
+++ b/hw/vfio/migration.c
@@ -391,7 +391,7 @@ static ssize_t vfio_save_block(QEMUFile *f, VFIOMigration *migration)
     qemu_put_be64(f, VFIO_MIG_FLAG_DEV_DATA_STATE);
     qemu_put_be64(f, data_size);
     qemu_put_buffer(f, migration->data_buffer, data_size);
-    qatomic_add(&bytes_transferred, data_size);
+    vfio_mig_add_bytes_transferred(data_size);
 
     trace_vfio_save_block(migration->vbasedev->name, data_size);
 
@@ -1021,6 +1021,11 @@ void vfio_reset_bytes_transferred(void)
     qatomic_set(&bytes_transferred, 0);
 }
 
+void vfio_mig_add_bytes_transferred(unsigned long val)
+{
+    qatomic_add(&bytes_transferred, val);
+}
+
 /*
  * Return true when either migration initialized or blocker registered.
  * Currently only return false when adding blocker fails which will
-- 
2.48.1