drm/exynos: add pid to g2d_runqueue_node

this patch adds pid to g2d_runqueue_node as member to identify
which process owns this node.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/gpu/drm/exynos/exynos_drm_g2d.c b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
index 1065e90d0919..dcbc4cb423be 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_g2d.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
@@ -122,6 +122,7 @@ struct g2d_runqueue_node {
         struct list_head        list;
         struct list_head        run_cmdlist;
         struct list_head        event_list;
+        pid_t                   pid;
         struct completion       complete;
         int                     async;
 };
@@ -679,6 +680,7 @@ int exynos_g2d_exec_ioctl(struct drm_device *drm_dev, void *data,
         }
 
         mutex_lock(&g2d->runqueue_mutex);
+        runqueue_node->pid = current->pid;
         list_add_tail(&runqueue_node->list, &g2d->runqueue);
         if (!g2d->runqueue_node)
                 g2d_exec_runqueue(g2d);