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Merge branch 'core-debugobjects-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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Pull debugobjects fix from Ingo Molnar:
 "A single commit making debugobjects interact better with kmemleak"

* 'core-debugobjects-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  debugobjects: Make kmemleak ignore debug objects
This commit is contained in:
Linus Torvalds 2017-09-04 08:11:52 -07:00
commit fea1543760
2 changed files with 4 additions and 1 deletions
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2
init/main.c
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@ -651,8 +651,8 @@ asmlinkage __visible void __init start_kernel(void)
} }
#endif #endif
page_ext_init(); page_ext_init();
debug_objects_mem_init();
kmemleak_init(); kmemleak_init();
debug_objects_mem_init();
setup_per_cpu_pageset(); setup_per_cpu_pageset();
numa_policy_init(); numa_policy_init();
if (late_time_init) if (late_time_init)

3
lib/debugobjects.c
View file

@ -18,6 +18,7 @@
#include <linux/debugfs.h> #include <linux/debugfs.h>
#include <linux/slab.h> #include <linux/slab.h>
#include <linux/hash.h> #include <linux/hash.h>
#include <linux/kmemleak.h>
#define ODEBUG_HASH_BITS 14 #define ODEBUG_HASH_BITS 14
#define ODEBUG_HASH_SIZE (1 << ODEBUG_HASH_BITS) #define ODEBUG_HASH_SIZE (1 << ODEBUG_HASH_BITS)
@ -110,6 +111,7 @@ static void fill_pool(void)
if (!new) if (!new)
return; return;
kmemleak_ignore(new);
raw_spin_lock_irqsave(&pool_lock, flags); raw_spin_lock_irqsave(&pool_lock, flags);
hlist_add_head(&new->node, &obj_pool); hlist_add_head(&new->node, &obj_pool);
debug_objects_allocated++; debug_objects_allocated++;
@ -1080,6 +1082,7 @@ static int __init debug_objects_replace_static_objects(void)
obj = kmem_cache_zalloc(obj_cache, GFP_KERNEL); obj = kmem_cache_zalloc(obj_cache, GFP_KERNEL);
if (!obj) if (!obj)
goto free; goto free;
kmemleak_ignore(obj);
hlist_add_head(&obj->node, &objects); hlist_add_head(&obj->node, &objects);
} }