Commit 18ece75d authored by Nirmoy Das's avatar Nirmoy Das Committed by Christian König
Browse files

drm/mm: fix hole size comparison 



Fixes: 0cdea445 ("drm/mm: optimize rb_hole_addr rbtree search")

Signed-off-by: default avatarNirmoy Das <nirmoy.das@amd.com>
Reported-by: default avatarChristian König <christian.koenig@amd.com>
Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarChristian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/367726/
parent ba931cfd

drivers/gpu/drm/drm_mm.c

+2 −2
Original line number Diff line number Diff line
@@ -407,7 +407,7 @@ next_hole_high_addr(struct drm_mm_node *entry, u64 size) 
		left_node = rb_entry(left_rb_node,

				     struct drm_mm_node, rb_hole_addr);

		if ((left_node->subtree_max_hole < size ||

		     entry->size == entry->subtree_max_hole) &&

		     HOLE_SIZE(entry) == entry->subtree_max_hole) &&

		    parent_rb_node && parent_rb_node->rb_left != rb_node)

			return rb_hole_addr_to_node(parent_rb_node);

	}
@@ -447,7 +447,7 @@ next_hole_low_addr(struct drm_mm_node *entry, u64 size) 
		right_node = rb_entry(right_rb_node,

				      struct drm_mm_node, rb_hole_addr);

		if ((right_node->subtree_max_hole < size ||

		     entry->size == entry->subtree_max_hole) &&

		     HOLE_SIZE(entry) == entry->subtree_max_hole) &&

		    parent_rb_node && parent_rb_node->rb_right != rb_node)

			return rb_hole_addr_to_node(parent_rb_node);

	}