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drm: Simplify drm_mm_clean()
Since commit ea7b1dd448
("drm: mm: track free areas implicitly"),
to test whether there are any nodes allocated within the range manager,
we merely have to ask whether the node_list is empty.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161222083641.2691-25-chris@chris-wilson.co.uk
This commit is contained in:
parent
c820186d5b
commit
ac9bb7b7d3
2 changed files with 14 additions and 19 deletions
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@ -872,22 +872,6 @@ bool drm_mm_scan_remove_block(struct drm_mm_node *node)
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}
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EXPORT_SYMBOL(drm_mm_scan_remove_block);
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/**
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* drm_mm_clean - checks whether an allocator is clean
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* @mm: drm_mm allocator to check
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*
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* Returns:
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* True if the allocator is completely free, false if there's still a node
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* allocated in it.
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*/
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bool drm_mm_clean(const struct drm_mm *mm)
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{
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const struct list_head *head = drm_mm_nodes(mm);
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return (head->next->next == head);
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}
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EXPORT_SYMBOL(drm_mm_clean);
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/**
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* drm_mm_init - initialize a drm-mm allocator
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* @mm: the drm_mm structure to initialize
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@ -928,10 +912,9 @@ EXPORT_SYMBOL(drm_mm_init);
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*/
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void drm_mm_takedown(struct drm_mm *mm)
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{
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if (WARN(!list_empty(drm_mm_nodes(mm)),
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if (WARN(!drm_mm_clean(mm),
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"Memory manager not clean during takedown.\n"))
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show_leaks(mm);
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}
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EXPORT_SYMBOL(drm_mm_takedown);
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@ -342,7 +342,19 @@ void drm_mm_remove_node(struct drm_mm_node *node);
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void drm_mm_replace_node(struct drm_mm_node *old, struct drm_mm_node *new);
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void drm_mm_init(struct drm_mm *mm, u64 start, u64 size);
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void drm_mm_takedown(struct drm_mm *mm);
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bool drm_mm_clean(const struct drm_mm *mm);
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/**
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* drm_mm_clean - checks whether an allocator is clean
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* @mm: drm_mm allocator to check
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*
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* Returns:
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* True if the allocator is completely free, false if there's still a node
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* allocated in it.
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*/
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static inline bool drm_mm_clean(const struct drm_mm *mm)
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{
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return list_empty(drm_mm_nodes(mm));
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}
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struct drm_mm_node *
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__drm_mm_interval_first(const struct drm_mm *mm, u64 start, u64 last);
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