Commit 3ba09632 authored Aug 16, 2019 by Matthew Auld Committed by Chris Wilson Aug 16, 2019

drm/i915/buddy: use kmemleak_update_trace



Since nodes are cached in a free-list, and potentially marked as free
without actually being destroyed, thus allowing them to be
opportunistically re-allocated, we should apply kmemleak_update_trace
every time a node is given a new owner and marked as allocated, to aid
in debugging.

Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190816105357.14340-2-matthew.auld@intel.com

parent 665c1c21

drivers/gpu/drm/i915/i915_buddy.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -3,6 +3,7 @@
		* Copyright © 2019 Intel Corporation
		*/

		#include <linux/kmemleak.h>
		#include <linux/slab.h>

		#include "i915_buddy.h"
		@@ -304,6 +305,7 @@ i915_buddy_alloc(struct i915_buddy_mm *mm, unsigned int order)
		}

		mark_allocated(block);
		kmemleak_update_trace(block);
		return block;

		out_free:

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