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Date:	Fri, 2 Jan 2009 15:53:45 -0500
From:	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
To:	Eduard - Gabriel Munteanu <eduard.munteanu@...ux360.ro>
Cc:	Pekka Enberg <penberg@...helsinki.fi>,
	Dipankar Sarma <dipankar@...ibm.com>,
	Alexey Dobriyan <adobriyan@...il.com>,
	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] kmemtrace: Use tracepoints instead of markers.

* Eduard - Gabriel Munteanu (eduard.munteanu@...ux360.ro) wrote:
> kmemtrace now uses tracepoints instead of markers. We no longer need to
> use format specifiers. Also dropped kmemtrace_mark_alloc_node(), since
> it's easy to pass -1 as the NUMA node without providing a needless and
> long-named variant of the same function.
> 
> Signed-off-by: Eduard - Gabriel Munteanu <eduard.munteanu@...ux360.ro>
> ---
>  include/linux/kmemtrace.h |   76 +++++++++-----------------------------------
>  include/linux/slab_def.h  |   11 +++---
>  include/linux/slub_def.h  |   16 +++++-----
>  lib/Kconfig.debug         |    2 +-
>  mm/kmemtrace.c            |   50 ++++++++++++++---------------
>  mm/slab.c                 |   27 ++++++++--------
>  mm/slob.c                 |   32 +++++++++---------
>  mm/slub.c                 |   36 ++++++++++----------
>  8 files changed, 103 insertions(+), 147 deletions(-)
> 
> diff --git a/include/linux/kmemtrace.h b/include/linux/kmemtrace.h
> index 5bea8ea..7b38245 100644
> --- a/include/linux/kmemtrace.h
> +++ b/include/linux/kmemtrace.h
> @@ -9,8 +9,8 @@
>  
>  #ifdef __KERNEL__
>  
> +#include <linux/tracepoint.h>
>  #include <linux/types.h>
> -#include <linux/marker.h>
>  
>  enum kmemtrace_type_id {
>  	KMEMTRACE_TYPE_KMALLOC = 0,	/* kmalloc() or kfree(). */
> @@ -18,67 +18,23 @@ enum kmemtrace_type_id {
>  	KMEMTRACE_TYPE_PAGES,		/* __get_free_pages() and friends. */
>  };
>  
> -#ifdef CONFIG_KMEMTRACE
> -
>  extern void kmemtrace_init(void);
>  
> -static inline void kmemtrace_mark_alloc_node(enum kmemtrace_type_id type_id,

Why do you need the enum kmemtrace_type_id type_id exactly ? Can you
remove this parameter by adding more specific tracepoints ?

> -					     unsigned long call_site,
> -					     const void *ptr,
> -					     size_t bytes_req,
> -					     size_t bytes_alloc,
> -					     gfp_t gfp_flags,
> -					     int node)
> -{
> -	trace_mark(kmemtrace_alloc, "type_id %d call_site %lu ptr %lu "
> -		   "bytes_req %lu bytes_alloc %lu gfp_flags %lu node %d",
> -		   type_id, call_site, (unsigned long) ptr,
> -		   (unsigned long) bytes_req, (unsigned long) bytes_alloc,
> -		   (unsigned long) gfp_flags, node);
> -}
> -
> -static inline void kmemtrace_mark_free(enum kmemtrace_type_id type_id,
> -				       unsigned long call_site,
> -				       const void *ptr)
> -{
> -	trace_mark(kmemtrace_free, "type_id %d call_site %lu ptr %lu",
> -		   type_id, call_site, (unsigned long) ptr);
> -}
> -
> -#else /* CONFIG_KMEMTRACE */
> -
> -static inline void kmemtrace_init(void)
> -{
> -}
> -
> -static inline void kmemtrace_mark_alloc_node(enum kmemtrace_type_id type_id,
> -					     unsigned long call_site,
> -					     const void *ptr,
> -					     size_t bytes_req,
> -					     size_t bytes_alloc,
> -					     gfp_t gfp_flags,
> -					     int node)
> -{
> -}
> -
> -static inline void kmemtrace_mark_free(enum kmemtrace_type_id type_id,
> -				       unsigned long call_site,
> -				       const void *ptr)
> -{
> -}
> -
> -#endif /* CONFIG_KMEMTRACE */
> -
> -static inline void kmemtrace_mark_alloc(enum kmemtrace_type_id type_id,
> -					unsigned long call_site,
> -					const void *ptr,
> -					size_t bytes_req,
> -					size_t bytes_alloc,
> -					gfp_t gfp_flags)
> -{
> -	kmemtrace_mark_alloc_node(type_id, call_site, ptr,
> -				  bytes_req, bytes_alloc, gfp_flags, -1);
> -}
> +DEFINE_TRACE(kmemtrace_alloc,
> +	     TPPROTO(enum kmemtrace_type_id type_id,
> +		     unsigned long call_site,
> +		     const void *ptr,
> +		     size_t bytes_req,
> +		     size_t bytes_alloc,
> +		     gfp_t gfp_flags,
> +		     int node),
> +	     TPARGS(type_id, call_site, ptr,
> +		    bytes_req, bytes_alloc, gfp_flags, node));
> +DEFINE_TRACE(kmemtrace_free,
> +	     TPPROTO(enum kmemtrace_type_id type_id,
> +		     unsigned long call_site,
> +		     const void *ptr),
> +	     TPARGS(type_id, call_site, ptr));
>  
>  #endif /* __KERNEL__ */
>  
> diff --git a/include/linux/slab_def.h b/include/linux/slab_def.h
> index 7555ce9..e5a8b60 100644
> --- a/include/linux/slab_def.h
> +++ b/include/linux/slab_def.h
> @@ -76,8 +76,9 @@ found:
>  
>  		ret = kmem_cache_alloc_notrace(cachep, flags);
>  
> -		kmemtrace_mark_alloc(KMEMTRACE_TYPE_KMALLOC, _THIS_IP_, ret,
> -				     size, slab_buffer_size(cachep), flags);
> +		trace_kmemtrace_alloc(KMEMTRACE_TYPE_KMALLOC, _THIS_IP_, ret,
> +				      size, slab_buffer_size(cachep),

You'll probably want to give "cachep" as parameter and do the
slab_buffer_size(cachep) within the probe to remove unneeded code from
the caller site.

> +				      flags, -1);
>  
>  		return ret;
>  	}
> @@ -134,9 +135,9 @@ found:
>  
>  		ret = kmem_cache_alloc_node_notrace(cachep, flags, node);
>  
> -		kmemtrace_mark_alloc_node(KMEMTRACE_TYPE_KMALLOC, _THIS_IP_,
> -					  ret, size, slab_buffer_size(cachep),
> -					  flags, node);
> +		trace_kmemtrace_alloc(KMEMTRACE_TYPE_KMALLOC, _THIS_IP_,
> +				      ret, size, slab_buffer_size(cachep),
> +				      flags, node);
>  
>  		return ret;
>  	}
> diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
> index dc28432..ce69c68 100644
> --- a/include/linux/slub_def.h
> +++ b/include/linux/slub_def.h
> @@ -220,8 +220,8 @@ static __always_inline void *kmalloc_large(size_t size, gfp_t flags)
>  	unsigned int order = get_order(size);
>  	void *ret = (void *) __get_free_pages(flags | __GFP_COMP, order);
>  
> -	kmemtrace_mark_alloc(KMEMTRACE_TYPE_KMALLOC, _THIS_IP_, ret,
> -			     size, PAGE_SIZE << order, flags);
> +	trace_kmemtrace_alloc(KMEMTRACE_TYPE_KMALLOC, _THIS_IP_, ret,
> +			      size, PAGE_SIZE << order, flags, -1);

Same here for order.

Why do you need to pass -1 ? Can you have a more specific tracepoint
instead ?

>  
>  	return ret;
>  }
> @@ -242,9 +242,9 @@ static __always_inline void *kmalloc(size_t size, gfp_t flags)
>  
>  			ret = kmem_cache_alloc_notrace(s, flags);
>  
> -			kmemtrace_mark_alloc(KMEMTRACE_TYPE_KMALLOC,
> -					     _THIS_IP_, ret,
> -					     size, s->size, flags);
> +			trace_kmemtrace_alloc(KMEMTRACE_TYPE_KMALLOC,
> +					      _THIS_IP_, ret,
> +					      size, s->size, flags, -1);
>  

Pass s as parameter and do the s->size dereference within the probe.

The same applies to many other caller sites below.

Mathieu

>  			return ret;
>  		}
> @@ -283,9 +283,9 @@ static __always_inline void *kmalloc_node(size_t size, gfp_t flags, int node)
>  
>  		ret = kmem_cache_alloc_node_notrace(s, flags, node);
>  
> -		kmemtrace_mark_alloc_node(KMEMTRACE_TYPE_KMALLOC,
> -					  _THIS_IP_, ret,
> -					  size, s->size, flags, node);
> +		trace_kmemtrace_alloc(KMEMTRACE_TYPE_KMALLOC,
> +				      _THIS_IP_, ret,
> +				      size, s->size, flags, node);
>  
>  		return ret;
>  	}
> diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
> index b5417e2..9cf8eb8 100644
> --- a/lib/Kconfig.debug
> +++ b/lib/Kconfig.debug
> @@ -805,7 +805,7 @@ config FIREWIRE_OHCI_REMOTE_DMA
>  
>  config KMEMTRACE
>  	bool "Kernel memory tracer (kmemtrace)"
> -	depends on RELAY && DEBUG_FS && MARKERS
> +	depends on RELAY && DEBUG_FS && TRACEPOINTS
>  	help
>  	  kmemtrace provides tracing for slab allocator functions, such as
>  	  kmalloc, kfree, kmem_cache_alloc, kmem_cache_free etc.. Collected
> diff --git a/mm/kmemtrace.c b/mm/kmemtrace.c
> index 2a70a80..7bc81b2 100644
> --- a/mm/kmemtrace.c
> +++ b/mm/kmemtrace.c
> @@ -58,8 +58,13 @@ struct kmemtrace_stats_alloc {
>  	s32		numa_node;
>  } __attribute__ ((__packed__));
>  
> -static void kmemtrace_probe_alloc(void *probe_data, void *call_data,
> -				  const char *format, va_list *args)
> +static void kmemtrace_probe_alloc(enum kmemtrace_type_id type_id,
> +				  unsigned long call_site,
> +				  const void *ptr,
> +				  size_t bytes_req,
> +				  size_t bytes_alloc,
> +				  gfp_t gfp_flags,
> +				  int node)
>  {
>  	unsigned long flags;
>  	struct kmemtrace_event *ev;
> @@ -81,25 +86,26 @@ static void kmemtrace_probe_alloc(void *probe_data, void *call_data,
>  
>  	ev = buf;
>  	ev->event_id = KMEMTRACE_EVENT_ALLOC;
> -	ev->type_id = va_arg(*args, int);
> +	ev->type_id = type_id;
>  	ev->event_size = sizeof(struct kmemtrace_event) +
>  			 sizeof(struct kmemtrace_stats_alloc);
>  	ev->seq_num = atomic_add_return(1, &kmemtrace_seq_num);
> -	ev->call_site = va_arg(*args, unsigned long);
> -	ev->ptr = va_arg(*args, unsigned long);
> +	ev->call_site = call_site;
> +	ev->ptr = (unsigned long) ptr;
>  
>  	stats = buf + sizeof(struct kmemtrace_event);
> -	stats->bytes_req = va_arg(*args, unsigned long);
> -	stats->bytes_alloc = va_arg(*args, unsigned long);
> -	stats->gfp_flags = va_arg(*args, unsigned long);
> -	stats->numa_node = va_arg(*args, int);
> +	stats->bytes_req = bytes_req;
> +	stats->bytes_alloc = bytes_alloc;
> +	stats->gfp_flags = gfp_flags;
> +	stats->numa_node = node;
>  
>  failed:
>  	local_irq_restore(flags);
>  }
>  
> -static void kmemtrace_probe_free(void *probe_data, void *call_data,
> -				 const char *format, va_list *args)
> +static void kmemtrace_probe_free(enum kmemtrace_type_id type_id,
> +				 unsigned long call_site,
> +				 const void *ptr)
>  {
>  	unsigned long flags;
>  	struct kmemtrace_event *ev;
> @@ -115,11 +121,11 @@ static void kmemtrace_probe_free(void *probe_data, void *call_data,
>  	 * C99 does not guarantee the rvalues evaluation order.
>  	 */
>  	ev->event_id = KMEMTRACE_EVENT_FREE;
> -	ev->type_id = va_arg(*args, int);
> +	ev->type_id = type_id;
>  	ev->event_size = sizeof(struct kmemtrace_event);
>  	ev->seq_num = atomic_add_return(1, &kmemtrace_seq_num);
> -	ev->call_site = va_arg(*args, unsigned long);
> -	ev->ptr = va_arg(*args, unsigned long);
> +	ev->call_site = call_site;
> +	ev->ptr = (unsigned long) ptr;
>  
>  failed:
>  	local_irq_restore(flags);
> @@ -173,26 +179,18 @@ static int kmemtrace_start_probes(void)
>  {
>  	int err;
>  
> -	err = marker_probe_register("kmemtrace_alloc", "type_id %d "
> -				    "call_site %lu ptr %lu "
> -				    "bytes_req %lu bytes_alloc %lu "
> -				    "gfp_flags %lu node %d",
> -				    kmemtrace_probe_alloc, NULL);
> +	err = register_trace_kmemtrace_alloc(kmemtrace_probe_alloc);
>  	if (err)
>  		return err;
> -	err = marker_probe_register("kmemtrace_free", "type_id %d "
> -				    "call_site %lu ptr %lu",
> -				    kmemtrace_probe_free, NULL);
> +	err = register_trace_kmemtrace_free(kmemtrace_probe_free);
>  
>  	return err;
>  }
>  
>  static void kmemtrace_stop_probes(void)
>  {
> -	marker_probe_unregister("kmemtrace_alloc",
> -				kmemtrace_probe_alloc, NULL);
> -	marker_probe_unregister("kmemtrace_free",
> -				kmemtrace_probe_free, NULL);
> +	unregister_trace_kmemtrace_alloc(kmemtrace_probe_alloc);
> +	unregister_trace_kmemtrace_free(kmemtrace_probe_free);
>  }
>  
>  static int kmemtrace_enabled_get(void *data, u64 *val)
> diff --git a/mm/slab.c b/mm/slab.c
> index 1fcb32b..74d405d 100644
> --- a/mm/slab.c
> +++ b/mm/slab.c
> @@ -3624,8 +3624,9 @@ void *kmem_cache_alloc(struct kmem_cache *cachep, gfp_t flags)
>  {
>  	void *ret = __cache_alloc(cachep, flags, __builtin_return_address(0));
>  
> -	kmemtrace_mark_alloc(KMEMTRACE_TYPE_CACHE, _RET_IP_, ret,
> -			     obj_size(cachep), cachep->buffer_size, flags);
> +	trace_kmemtrace_alloc(KMEMTRACE_TYPE_CACHE, _RET_IP_, ret,
> +			      obj_size(cachep), cachep->buffer_size,
> +			      flags, -1);
>  
>  	return ret;
>  }
> @@ -3686,9 +3687,9 @@ void *kmem_cache_alloc_node(struct kmem_cache *cachep, gfp_t flags, int nodeid)
>  	void *ret = __cache_alloc_node(cachep, flags, nodeid,
>  				       __builtin_return_address(0));
>  
> -	kmemtrace_mark_alloc_node(KMEMTRACE_TYPE_CACHE, _RET_IP_, ret,
> -				  obj_size(cachep), cachep->buffer_size,
> -				  flags, nodeid);
> +	trace_kmemtrace_alloc(KMEMTRACE_TYPE_CACHE, _RET_IP_, ret,
> +			      obj_size(cachep), cachep->buffer_size,
> +			      flags, nodeid);
>  
>  	return ret;
>  }
> @@ -3716,9 +3717,9 @@ __do_kmalloc_node(size_t size, gfp_t flags, int node, void *caller)
>  		return cachep;
>  	ret = kmem_cache_alloc_node_notrace(cachep, flags, node);
>  
> -	kmemtrace_mark_alloc_node(KMEMTRACE_TYPE_KMALLOC,
> -				  (unsigned long) caller, ret,
> -				  size, cachep->buffer_size, flags, node);
> +	trace_kmemtrace_alloc(KMEMTRACE_TYPE_KMALLOC,
> +			      (unsigned long) caller, ret,
> +			      size, cachep->buffer_size, flags, node);
>  
>  	return ret;
>  }
> @@ -3768,9 +3769,9 @@ static __always_inline void *__do_kmalloc(size_t size, gfp_t flags,
>  		return cachep;
>  	ret = __cache_alloc(cachep, flags, caller);
>  
> -	kmemtrace_mark_alloc(KMEMTRACE_TYPE_KMALLOC,
> -			     (unsigned long) caller, ret,
> -			     size, cachep->buffer_size, flags);
> +	trace_kmemtrace_alloc(KMEMTRACE_TYPE_KMALLOC,
> +			      (unsigned long) caller, ret,
> +			      size, cachep->buffer_size, flags, -1);
>  
>  	return ret;
>  }
> @@ -3816,7 +3817,7 @@ void kmem_cache_free(struct kmem_cache *cachep, void *objp)
>  	__cache_free(cachep, objp);
>  	local_irq_restore(flags);
>  
> -	kmemtrace_mark_free(KMEMTRACE_TYPE_CACHE, _RET_IP_, objp);
> +	trace_kmemtrace_free(KMEMTRACE_TYPE_CACHE, _RET_IP_, objp);
>  }
>  EXPORT_SYMBOL(kmem_cache_free);
>  
> @@ -3844,7 +3845,7 @@ void kfree(const void *objp)
>  	__cache_free(c, (void *)objp);
>  	local_irq_restore(flags);
>  
> -	kmemtrace_mark_free(KMEMTRACE_TYPE_KMALLOC, _RET_IP_, objp);
> +	trace_kmemtrace_free(KMEMTRACE_TYPE_KMALLOC, _RET_IP_, objp);
>  }
>  EXPORT_SYMBOL(kfree);
>  
> diff --git a/mm/slob.c b/mm/slob.c
> index 0f1a49f..15f812c 100644
> --- a/mm/slob.c
> +++ b/mm/slob.c
> @@ -477,9 +477,9 @@ void *__kmalloc_node(size_t size, gfp_t gfp, int node)
>  		*m = size;
>  		ret = (void *)m + align;
>  
> -		kmemtrace_mark_alloc_node(KMEMTRACE_TYPE_KMALLOC,
> -					  _RET_IP_, ret,
> -					  size, size + align, gfp, node);
> +		trace_kmemtrace_alloc(KMEMTRACE_TYPE_KMALLOC,
> +				      _RET_IP_, ret,
> +				      size, size + align, gfp, node);
>  	} else {
>  		unsigned int order = get_order(size);
>  
> @@ -490,9 +490,9 @@ void *__kmalloc_node(size_t size, gfp_t gfp, int node)
>  			page->private = size;
>  		}
>  
> -		kmemtrace_mark_alloc_node(KMEMTRACE_TYPE_KMALLOC,
> -					  _RET_IP_, ret,
> -					  size, PAGE_SIZE << order, gfp, node);
> +		trace_kmemtrace_alloc(KMEMTRACE_TYPE_KMALLOC,
> +				      _RET_IP_, ret,
> +				      size, PAGE_SIZE << order, gfp, node);
>  	}
>  
>  	return ret;
> @@ -514,7 +514,7 @@ void kfree(const void *block)
>  	} else
>  		put_page(&sp->page);
>  
> -	kmemtrace_mark_free(KMEMTRACE_TYPE_KMALLOC, _RET_IP_, block);
> +	trace_kmemtrace_alloc(KMEMTRACE_TYPE_KMALLOC, _RET_IP_, block);
>  }
>  EXPORT_SYMBOL(kfree);
>  
> @@ -585,16 +585,16 @@ void *kmem_cache_alloc_node(struct kmem_cache *c, gfp_t flags, int node)
>  
>  	if (c->size < PAGE_SIZE) {
>  		b = slob_alloc(c->size, flags, c->align, node);
> -		kmemtrace_mark_alloc_node(KMEMTRACE_TYPE_CACHE,
> -					  _RET_IP_, b, c->size,
> -					  SLOB_UNITS(c->size) * SLOB_UNIT,
> -					  flags, node);
> +		trace_kmemtrace_alloc(KMEMTRACE_TYPE_CACHE,
> +				      _RET_IP_, b, c->size,
> +				      SLOB_UNITS(c->size) * SLOB_UNIT,
> +				      flags, node);
>  	} else {
>  		b = slob_new_page(flags, get_order(c->size), node);
> -		kmemtrace_mark_alloc_node(KMEMTRACE_TYPE_CACHE,
> -					  _RET_IP_, b, c->size,
> -					  PAGE_SIZE << get_order(c->size),
> -					  flags, node);
> +		trace_kmemtrace_alloc(KMEMTRACE_TYPE_CACHE,
> +				      _RET_IP_, b, c->size,
> +				      PAGE_SIZE << get_order(c->size),
> +				      flags, node);
>  	}
>  
>  	if (c->ctor)
> @@ -632,7 +632,7 @@ void kmem_cache_free(struct kmem_cache *c, void *b)
>  		__kmem_cache_free(b, c->size);
>  	}
>  
> -	kmemtrace_mark_free(KMEMTRACE_TYPE_CACHE, _RET_IP_, b);
> +	trace_kmemtrace_free(KMEMTRACE_TYPE_CACHE, _RET_IP_, b);
>  }
>  EXPORT_SYMBOL(kmem_cache_free);
>  
> diff --git a/mm/slub.c b/mm/slub.c
> index f756915..3a2ec3a 100644
> --- a/mm/slub.c
> +++ b/mm/slub.c
> @@ -1620,8 +1620,8 @@ void *kmem_cache_alloc(struct kmem_cache *s, gfp_t gfpflags)
>  {
>  	void *ret = slab_alloc(s, gfpflags, -1, _RET_IP_);
>  
> -	kmemtrace_mark_alloc(KMEMTRACE_TYPE_CACHE, _RET_IP_, ret,
> -			     s->objsize, s->size, gfpflags);
> +	trace_kmemtrace_alloc(KMEMTRACE_TYPE_CACHE, _RET_IP_, ret,
> +			      s->objsize, s->size, gfpflags, -1);
>  
>  	return ret;
>  }
> @@ -1640,8 +1640,8 @@ void *kmem_cache_alloc_node(struct kmem_cache *s, gfp_t gfpflags, int node)
>  {
>  	void *ret = slab_alloc(s, gfpflags, node, _RET_IP_);
>  
> -	kmemtrace_mark_alloc_node(KMEMTRACE_TYPE_CACHE, _RET_IP_, ret,
> -				  s->objsize, s->size, gfpflags, node);
> +	trace_kmemtrace_alloc(KMEMTRACE_TYPE_CACHE, _RET_IP_, ret,
> +			      s->objsize, s->size, gfpflags, node);
>  
>  	return ret;
>  }
> @@ -1766,7 +1766,7 @@ void kmem_cache_free(struct kmem_cache *s, void *x)
>  
>  	slab_free(s, page, x, _RET_IP_);
>  
> -	kmemtrace_mark_free(KMEMTRACE_TYPE_CACHE, _RET_IP_, x);
> +	trace_kmemtrace_free(KMEMTRACE_TYPE_CACHE, _RET_IP_, x);
>  }
>  EXPORT_SYMBOL(kmem_cache_free);
>  
> @@ -2694,8 +2694,8 @@ void *__kmalloc(size_t size, gfp_t flags)
>  
>  	ret = slab_alloc(s, flags, -1, _RET_IP_);
>  
> -	kmemtrace_mark_alloc(KMEMTRACE_TYPE_KMALLOC, _RET_IP_, ret,
> -			     size, s->size, flags);
> +	trace_kmemtrace_alloc(KMEMTRACE_TYPE_KMALLOC, _RET_IP_, ret,
> +			      size, s->size, flags, -1);
>  
>  	return ret;
>  }
> @@ -2721,10 +2721,10 @@ void *__kmalloc_node(size_t size, gfp_t flags, int node)
>  	if (unlikely(size > PAGE_SIZE)) {
>  		ret = kmalloc_large_node(size, flags, node);
>  
> -		kmemtrace_mark_alloc_node(KMEMTRACE_TYPE_KMALLOC,
> -					  _RET_IP_, ret,
> -					  size, PAGE_SIZE << get_order(size),
> -					  flags, node);
> +		trace_kmemtrace_alloc(KMEMTRACE_TYPE_KMALLOC,
> +				      _RET_IP_, ret,
> +				      size, PAGE_SIZE << get_order(size),
> +				      flags, node);
>  
>  		return ret;
>  	}
> @@ -2736,8 +2736,8 @@ void *__kmalloc_node(size_t size, gfp_t flags, int node)
>  
>  	ret = slab_alloc(s, flags, node, _RET_IP_);
>  
> -	kmemtrace_mark_alloc_node(KMEMTRACE_TYPE_KMALLOC, _RET_IP_, ret,
> -				  size, s->size, flags, node);
> +	trace_kmemtrace_alloc(KMEMTRACE_TYPE_KMALLOC, _RET_IP_, ret,
> +			      size, s->size, flags, node);
>  
>  	return ret;
>  }
> @@ -2798,7 +2798,7 @@ void kfree(const void *x)
>  	}
>  	slab_free(page->slab, page, object, _RET_IP_);
>  
> -	kmemtrace_mark_free(KMEMTRACE_TYPE_KMALLOC, _RET_IP_, x);
> +	trace_kmemtrace_free(KMEMTRACE_TYPE_KMALLOC, _RET_IP_, x);
>  }
>  EXPORT_SYMBOL(kfree);
>  
> @@ -3272,8 +3272,8 @@ void *__kmalloc_track_caller(size_t size, gfp_t gfpflags, unsigned long caller)
>  	ret = slab_alloc(s, gfpflags, -1, caller);
>  
>  	/* Honor the call site pointer we recieved. */
> -	kmemtrace_mark_alloc(KMEMTRACE_TYPE_KMALLOC, caller, ret, size,
> -			     s->size, gfpflags);
> +	trace_kmemtrace_alloc(KMEMTRACE_TYPE_KMALLOC, caller, ret, size,
> +			      s->size, gfpflags, -1);
>  
>  	return ret;
>  }
> @@ -3295,8 +3295,8 @@ void *__kmalloc_node_track_caller(size_t size, gfp_t gfpflags,
>  	ret = slab_alloc(s, gfpflags, node, caller);
>  
>  	/* Honor the call site pointer we recieved. */
> -	kmemtrace_mark_alloc_node(KMEMTRACE_TYPE_KMALLOC, caller, ret,
> -				  size, s->size, gfpflags, node);
> +	trace_kmemtrace_alloc(KMEMTRACE_TYPE_KMALLOC, caller, ret,
> +			      size, s->size, gfpflags, node);
>  
>  	return ret;
>  }
> -- 
> 1.6.0.6
> 

-- 
Mathieu Desnoyers
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68
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