drm/framebuffer: Print task that allocated the fb in debug info.

This is is very useful to finding sources of leaked framebufers.
The fbcon fb is annotated with [fbcon], to give it a better name
than kworker.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171220093545.613-3-maarten.lankhorst@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 6 insertions, 0 deletions

diff --git a/include/drm/drm_framebuffer.h b/include/drm/drm_framebuffer.h
index dccb897951ba..c50502c656e5 100644
--- a/include/drm/drm_framebuffer.h
+++ b/include/drm/drm_framebuffer.h
@@ -121,6 +121,12 @@ struct drm_framebuffer {
          * @base: base modeset object structure, contains the reference count.
          */
         struct drm_mode_object base;
+
+        /**
+         * @comm: Name of the process allocating the fb, used for fb dumping.
+         */
+        char comm[TASK_COMM_LEN];
+
         /**
          * @format: framebuffer format information
          */