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mm/sl[ao]b: always track caller in kmalloc_(node_)track_caller()
Now, we track caller if tracing or slab debugging is enabled. If they are disabled, we could save one argument passing overhead by calling __kmalloc(_node)(). But, I think that it would be marginal. Furthermore, default slab allocator, SLUB, doesn't use this technique so I think that it's okay to change this situation. After this change, we can turn on/off CONFIG_DEBUG_SLAB without full kernel build and remove some complicated '#if' defintion. It looks more benefitial to me. Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com> Acked-by: Christoph Lameter <cl@linux.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: David Rientjes <rientjes@google.com> Cc: Zhang Yanfei <zhangyanfei@cn.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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07f361b2be
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3 changed files with 0 additions and 42 deletions
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@ -549,37 +549,15 @@ static inline void *kcalloc(size_t n, size_t size, gfp_t flags)
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* allocator where we care about the real place the memory allocation
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* request comes from.
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*/
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#if defined(CONFIG_DEBUG_SLAB) || defined(CONFIG_SLUB) || \
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(defined(CONFIG_SLAB) && defined(CONFIG_TRACING)) || \
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(defined(CONFIG_SLOB) && defined(CONFIG_TRACING))
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extern void *__kmalloc_track_caller(size_t, gfp_t, unsigned long);
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#define kmalloc_track_caller(size, flags) \
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__kmalloc_track_caller(size, flags, _RET_IP_)
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#else
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#define kmalloc_track_caller(size, flags) \
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__kmalloc(size, flags)
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#endif /* DEBUG_SLAB */
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#ifdef CONFIG_NUMA
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/*
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* kmalloc_node_track_caller is a special version of kmalloc_node that
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* records the calling function of the routine calling it for slab leak
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* tracking instead of just the calling function (confusing, eh?).
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* It's useful when the call to kmalloc_node comes from a widely-used
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* standard allocator where we care about the real place the memory
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* allocation request comes from.
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*/
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#if defined(CONFIG_DEBUG_SLAB) || defined(CONFIG_SLUB) || \
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(defined(CONFIG_SLAB) && defined(CONFIG_TRACING)) || \
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(defined(CONFIG_SLOB) && defined(CONFIG_TRACING))
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extern void *__kmalloc_node_track_caller(size_t, gfp_t, int, unsigned long);
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#define kmalloc_node_track_caller(size, flags, node) \
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__kmalloc_node_track_caller(size, flags, node, \
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_RET_IP_)
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#else
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#define kmalloc_node_track_caller(size, flags, node) \
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__kmalloc_node(size, flags, node)
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#endif
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#else /* CONFIG_NUMA */
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