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Date: Fri, 2 May 2014 14:41:07 +0100 From: Catalin Marinas <catalin.marinas@....com> To: linux-kernel@...r.kernel.org, linux-mm@...ck.org Cc: Andrew Morton <akpm@...ux-foundation.org>, Johannes Weiner <hannes@...xchg.org> Subject: [PATCH 3/6] lib: 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@....com> Cc: Andrew Morton <akpm@...ux-foundation.org> Cc: Johannes Weiner <hannes@...xchg.org> --- lib/radix-tree.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/lib/radix-tree.c b/lib/radix-tree.c index 9599aa72d7a0..5297f8e09096 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> @@ -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); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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