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authorCatalin Marinas <catalin.marinas@arm.com>2009-06-11 13:22:39 +0100
committerCatalin Marinas <catalin.marinas@arm.com>2009-06-11 17:03:28 +0100
commit3c7b4e6b8be4c16f1e6e5c558e33b7ff0db2dfaf (patch)
tree3722fc5220bf8d611def5618758b05160ff05312 /init
parent991ec02cdca33b03a132a0cacfe6f0aa0be9aa8d (diff)
downloadlinux-linaro-stable-3c7b4e6b8be4c16f1e6e5c558e33b7ff0db2dfaf.tar.gz
kmemleak: Add the base support
This patch adds the base support for the kernel memory leak detector. It traces the memory allocation/freeing in a way similar to the Boehm's conservative garbage collector, the difference being that the unreferenced objects are not freed but only shown in /sys/kernel/debug/kmemleak. Enabling this feature introduces an overhead to memory allocations. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Ingo Molnar <mingo@elte.hu> Acked-by: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'init')
-rw-r--r--init/main.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/init/main.c b/init/main.c
index bb7dc57eee36..9d759d68d7a0 100644
--- a/init/main.c
+++ b/init/main.c
@@ -56,6 +56,7 @@
#include <linux/debug_locks.h>
#include <linux/debugobjects.h>
#include <linux/lockdep.h>
+#include <linux/kmemleak.h>
#include <linux/pid_namespace.h>
#include <linux/device.h>
#include <linux/kthread.h>
@@ -603,6 +604,7 @@ asmlinkage void __init start_kernel(void)
/* init some links before init_ISA_irqs() */
early_irq_init();
init_IRQ();
+ prio_tree_init();
pidhash_init();
init_timers();
hrtimers_init();
@@ -654,6 +656,7 @@ asmlinkage void __init start_kernel(void)
cpu_hotplug_init();
kmem_cache_init();
kmemtrace_init();
+ kmemleak_init();
debug_objects_mem_init();
idr_init_cache();
setup_per_cpu_pageset();
@@ -663,7 +666,6 @@ asmlinkage void __init start_kernel(void)
calibrate_delay();
pidmap_init();
pgtable_cache_init();
- prio_tree_init();
anon_vma_init();
#ifdef CONFIG_X86
if (efi_enabled)