Commit ce80b067 authored Jun 06, 2014 by Catalin Marinas Committed by Linus Torvalds Jun 06, 2014

lib/radix-tree.c: update the kmemleak stack trace for radix tree allocations



Since radix_tree_preload() stack trace is not always useful for
debugging an actual radix tree memory leak, this patch updates the
kmemleak allocation stack trace in the radix_tree_node_alloc() function.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent ffe2c748

lib/radix-tree.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -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>
		@@ -200,6 +201,11 @@ radix_tree_node_alloc(struct radix_tree_root *root)
		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);

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