drm/i915: Report the current number of bytes freed during oom

The shrinker reports the number of pages freed, but we try to log the
number of bytes - which leads to some nonsense values being reportedly
freed during oom.

Reported-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 2719c25..dd25a54 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -5259,7 +5259,7 @@ i915_gem_shrinker_oom(struct notifier_block *nb, unsigned long event, void *ptr)
        struct drm_device *dev = dev_priv->dev;
        struct drm_i915_gem_object *obj;
        unsigned long timeout = msecs_to_jiffies(5000) + 1;
-       unsigned long pinned, bound, unbound, freed;
+       unsigned long pinned, bound, unbound, freed_pages;
        bool was_interruptible;
        bool unlock;
 
@@ -5276,7 +5276,7 @@ i915_gem_shrinker_oom(struct notifier_block *nb, unsigned long event, void *ptr)
        was_interruptible = dev_priv->mm.interruptible;
        dev_priv->mm.interruptible = false;
 
-       freed = i915_gem_shrink_all(dev_priv);
+       freed_pages = i915_gem_shrink_all(dev_priv);
 
        dev_priv->mm.interruptible = was_interruptible;
 
@@ -5308,13 +5308,13 @@ i915_gem_shrinker_oom(struct notifier_block *nb, unsigned long event, void *ptr)
                mutex_unlock(&dev->struct_mutex);
 
        pr_info("Purging GPU memory, %lu bytes freed, %lu bytes still pinned.\n",
-               freed, pinned);
+               freed_pages << PAGE_SHIFT, pinned);
        if (unbound || bound)
                pr_err("%lu and %lu bytes still available in the "
                       "bound and unbound GPU page lists.\n",
                       bound, unbound);
 
-       *(unsigned long *)ptr += freed;
+       *(unsigned long *)ptr += freed_pages;
        return NOTIFY_DONE;
 }