From 7d0c7ee94d4a1be41b650b7192210b8edc4c7235 Mon Sep 17 00:00:00 2001
From: Catalin Marinas <catalin.marinas@arm.com>
Date: Wed, 9 May 2012 16:55:19 +0100
Subject: [PATCH] kmemleak: Fix the kmemleak tracking of the percpu areas with
!SMP
Kmemleak tracks the percpu allocations via a specific API and the
originally allocated areas must be removed from kmemleak (via
kmemleak_free). The code was already doing this for SMP systems.
Reported-by: Sami Liedes <sami.liedes@iki.fi>
Cc: Tejun Heo <tj@kernel.org>
Cc: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
mm/percpu.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/mm/percpu.c b/mm/percpu.c
index ac5c626b44a9a..bb4be7435ce34 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -1895,6 +1895,8 @@ void __init setup_per_cpu_areas(void)
fc = __alloc_bootmem(unit_size, PAGE_SIZE, __pa(MAX_DMA_ADDRESS));
if (!ai || !fc)
panic("Failed to allocate memory for percpu areas.");
+ /* kmemleak tracks the percpu allocations separately */
+ kmemleak_free(fc);
ai->dyn_size = unit_size;
ai->unit_size = unit_size;
--
2.39.5