diff options
| author | Maarten Lankhorst <maarten.lankhorst@linux.intel.com> | 2017-12-20 12:35:44 +0300 |
|---|---|---|
| committer | Maarten Lankhorst <maarten.lankhorst@linux.intel.com> | 2017-12-20 17:30:17 +0300 |
| commit | 8d44e9e69aacecd522bb2797eb2febc5c6c46558 (patch) | |
| tree | 6bfeb81401e996cbb2dc431f9fcca7f73f99cb1a | |
| parent | 48c9571c34b153abc1c4f2b431fa74490b671943 (diff) | |
| download | linux-8d44e9e69aacecd522bb2797eb2febc5c6c46558.tar.xz | |
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>
| -rw-r--r-- | drivers/gpu/drm/drm_fb_helper.c | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/drm_framebuffer.c | 2 | ||||
| -rw-r--r-- | include/drm/drm_framebuffer.h | 6 |
3 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index 4a61e1aef41b..035784ddd133 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -1896,6 +1896,7 @@ static int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper, if (ret < 0) return ret; + strcpy(fb_helper->fb->comm, "[fbcon]"); return 0; } diff --git a/drivers/gpu/drm/drm_framebuffer.c b/drivers/gpu/drm/drm_framebuffer.c index d63d4c2ac4c8..5a13ff29f4f0 100644 --- a/drivers/gpu/drm/drm_framebuffer.c +++ b/drivers/gpu/drm/drm_framebuffer.c @@ -664,6 +664,7 @@ int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, INIT_LIST_HEAD(&fb->filp_head); fb->funcs = funcs; + strcpy(fb->comm, current->comm); ret = __drm_mode_object_add(dev, &fb->base, DRM_MODE_OBJECT_FB, false, drm_framebuffer_free); @@ -978,6 +979,7 @@ void drm_framebuffer_print_info(struct drm_printer *p, unsigned int indent, struct drm_format_name_buf format_name; unsigned int i; + drm_printf_indent(p, indent, "allocated by = %s\n", fb->comm); drm_printf_indent(p, indent, "refcount=%u\n", drm_framebuffer_read_refcount(fb)); drm_printf_indent(p, indent, "format=%s\n", 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 */ |