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drm/i915/buddy: use kmemleak_update_trace

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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
This commit is contained in:
Matthew Auld 2019-08-16 11:53:57 +01:00 committed by Chris Wilson
parent 665c1c2166
commit 3ba09632ce
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/i915/i915_buddy.c
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@ -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: