From 3ba09632ce8bd42d1e4b57a6a423dcab937e211b Mon Sep 17 00:00:00 2001
From: Matthew Auld <matthew.auld@intel.com>
Date: Fri, 16 Aug 2019 11:53:57 +0100
Subject: drm/i915/buddy: use kmemleak_update_trace
Git-commit: 3ba09632ce8bd42d1e4b57a6a423dcab937e211b
Patch-mainline: v5.4-rc1
References: bsc#1152489
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
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/gpu/drm/i915/i915_buddy.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_buddy.c b/drivers/gpu/drm/i915/i915_buddy.c
index 5995247fdf76..fe1871d7c126 100644
--- a/drivers/gpu/drm/i915/i915_buddy.c
+++ b/drivers/gpu/drm/i915/i915_buddy.c
@@ -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:
--
2.28.0