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-rw-r--r--lib/radix-tree.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/lib/radix-tree.c b/lib/radix-tree.c
index 9599aa72d7a0..3291a8e37490 100644
--- a/lib/radix-tree.c
+++ b/lib/radix-tree.c
@@ -27,6 +27,7 @@
#include <linux/radix-tree.h>
#include <linux/percpu.h>
#include <linux/slab.h>
+#include <linux/kmemleak.h>
#include <linux/notifier.h>
#include <linux/cpu.h>
#include <linux/string.h>
@@ -194,12 +195,17 @@ radix_tree_node_alloc(struct radix_tree_root *root)
* succeed in getting a node here (and never reach
* kmem_cache_alloc)
*/
- rtp = &__get_cpu_var(radix_tree_preloads);
+ rtp = this_cpu_ptr(&radix_tree_preloads);
if (rtp->nr) {
ret = rtp->nodes[rtp->nr - 1];
rtp->nodes[rtp->nr - 1] = NULL;
rtp->nr--;
}
+ /*
+ * Update the allocation stack trace as this is more useful
+ * for debugging.
+ */
+ kmemleak_update_trace(ret);
}
if (ret == NULL)
ret = kmem_cache_alloc(radix_tree_node_cachep, gfp_mask);
@@ -250,14 +256,14 @@ static int __radix_tree_preload(gfp_t gfp_mask)
int ret = -ENOMEM;
preempt_disable();
- rtp = &__get_cpu_var(radix_tree_preloads);
+ rtp = this_cpu_ptr(&radix_tree_preloads);
while (rtp->nr < ARRAY_SIZE(rtp->nodes)) {
preempt_enable();
node = kmem_cache_alloc(radix_tree_node_cachep, gfp_mask);
if (node == NULL)
goto out;
preempt_disable();
- rtp = &__get_cpu_var(radix_tree_preloads);
+ rtp = this_cpu_ptr(&radix_tree_preloads);
if (rtp->nr < ARRAY_SIZE(rtp->nodes))
rtp->nodes[rtp->nr++] = node;
else
@@ -1296,7 +1302,6 @@ static inline void radix_tree_shrink(struct radix_tree_root *root)
/**
* __radix_tree_delete_node - try to free node after clearing a slot
* @root: radix tree root
- * @index: index key
* @node: node containing @index
*
* After clearing the slot at @index in @node from radix tree