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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2017-10-13 21:26:13 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2017-10-16 20:44:19 +0100 |
| commit | f1fa4f442c82eb875babb88399a6b69efce7b453 (patch) | |
| tree | 60ac898b028aba4348202034b75562a207b0c446 /drivers/gpu/drm/i915/i915_gem_shrinker.c | |
| parent | e4ffc83d3fa7e51390a94303e06356d2d1d5b5ee (diff) | |
| download | linux-f1fa4f442c82eb875babb88399a6b69efce7b453.tar.gz | |
drm/i915: Refactor testing obj->mm.pages
Since we occasionally stuff an error pointer into obj->mm.pages for a semi-permanent or even permanent failure, we have to be more careful and not just test against NULL when deciding if the object has a complete set of its concurrent pages. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171013202621.7276-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_shrinker.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_shrinker.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_shrinker.c b/drivers/gpu/drm/i915/i915_gem_shrinker.c index 74002b2d1b6f..b5c87d89777b 100644 --- a/drivers/gpu/drm/i915/i915_gem_shrinker.c +++ b/drivers/gpu/drm/i915/i915_gem_shrinker.c @@ -97,7 +97,7 @@ static bool swap_available(void) static bool can_release_pages(struct drm_i915_gem_object *obj) { - if (!obj->mm.pages) + if (!i915_gem_object_has_pages(obj)) return false; /* Consider only shrinkable ojects. */ @@ -129,7 +129,7 @@ static bool unsafe_drop_pages(struct drm_i915_gem_object *obj) { if (i915_gem_object_unbind(obj) == 0) __i915_gem_object_put_pages(obj, I915_MM_SHRINKER); - return !READ_ONCE(obj->mm.pages); + return !i915_gem_object_has_pages(obj); } /** @@ -247,7 +247,7 @@ i915_gem_shrink(struct drm_i915_private *dev_priv, /* May arrive from get_pages on another bo */ mutex_lock_nested(&obj->mm.lock, I915_MM_SHRINKER); - if (!obj->mm.pages) { + if (!i915_gem_object_has_pages(obj)) { __i915_gem_object_invalidate(obj); list_del_init(&obj->global_link); count += obj->base.size >> PAGE_SHIFT; @@ -413,7 +413,7 @@ i915_gem_shrinker_oom(struct notifier_block *nb, unsigned long event, void *ptr) */ unbound = bound = unevictable = 0; list_for_each_entry(obj, &dev_priv->mm.unbound_list, global_link) { - if (!obj->mm.pages) + if (!i915_gem_object_has_pages(obj)) continue; if (!can_release_pages(obj)) @@ -422,7 +422,7 @@ i915_gem_shrinker_oom(struct notifier_block *nb, unsigned long event, void *ptr) unbound += obj->base.size >> PAGE_SHIFT; } list_for_each_entry(obj, &dev_priv->mm.bound_list, global_link) { - if (!obj->mm.pages) + if (!i915_gem_object_has_pages(obj)) continue; if (!can_release_pages(obj)) |