linux-kernel - [PATCH v3 04/15] mm/slab_common: cleanup kmalloc_track

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Message-Id: <20220712133946.307181-5-42.hyeyoo@gmail.com>
Date:   Tue, 12 Jul 2022 13:39:34 +0000
From:   Hyeonggon Yoo <42.hyeyoo@...il.com>
To:     Christoph Lameter <cl@...ux.com>,
        Pekka Enberg <penberg@...nel.org>,
        David Rientjes <rientjes@...gle.com>,
        Joonsoo Kim <iamjoonsoo.kim@....com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Vlastimil Babka <vbabka@...e.cz>,
        Roman Gushchin <roman.gushchin@...ux.dev>,
        Hyeonggon Yoo <42.hyeyoo@...il.com>,
        Joe Perches <joe@...ches.com>,
        Vasily Averin <vasily.averin@...ux.dev>,
        Matthew WilCox <willy@...radead.org>
Cc:     linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: [PATCH v3 04/15] mm/slab_common: cleanup kmalloc_track_caller()

Make kmalloc_track_caller() wrapper of kmalloc_node_track_caller().

Signed-off-by: Hyeonggon Yoo <42.hyeyoo@...il.com>
Reviewed-by: Vlastimil Babka <vbabka@...e.cz>
---
 include/linux/slab.h | 17 ++++++++---------
 mm/slab.c            |  6 ------
 mm/slob.c            |  6 ------
 mm/slub.c            | 22 ----------------------
 4 files changed, 8 insertions(+), 43 deletions(-)

diff --git a/include/linux/slab.h b/include/linux/slab.h
index 4754c834b0e3..a0e57df3d5a4 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -651,6 +651,12 @@ static inline __alloc_size(1, 2) void *kcalloc(size_t n, size_t size, gfp_t flag
 	return kmalloc_array(n, size, flags | __GFP_ZERO);
 }
 
+void *__kmalloc_node_track_caller(size_t size, gfp_t flags, int node,
+				  unsigned long caller) __alloc_size(1);
+#define kmalloc_node_track_caller(size, flags, node) \
+	__kmalloc_node_track_caller(size, flags, node, \
+				    _RET_IP_)
+
 /*
  * kmalloc_track_caller is a special version of kmalloc that records the
  * calling function of the routine calling it for slab leak tracking instead
@@ -659,9 +665,9 @@ static inline __alloc_size(1, 2) void *kcalloc(size_t n, size_t size, gfp_t flag
  * allocator where we care about the real place the memory allocation
  * request comes from.
  */
-extern void *__kmalloc_track_caller(size_t size, gfp_t flags, unsigned long caller);
 #define kmalloc_track_caller(size, flags) \
-	__kmalloc_track_caller(size, flags, _RET_IP_)
+	__kmalloc_node_track_caller(size, flags, \
+				    NUMA_NO_NODE, _RET_IP_)
 
 static inline __alloc_size(1, 2) void *kmalloc_array_node(size_t n, size_t size, gfp_t flags,
 							  int node)
@@ -680,13 +686,6 @@ static inline __alloc_size(1, 2) void *kcalloc_node(size_t n, size_t size, gfp_t
 	return kmalloc_array_node(n, size, flags | __GFP_ZERO, node);
 }
 
-
-extern void *__kmalloc_node_track_caller(size_t size, gfp_t flags, int node,
-					 unsigned long caller) __alloc_size(1);
-#define kmalloc_node_track_caller(size, flags, node) \
-	__kmalloc_node_track_caller(size, flags, node, \
-			_RET_IP_)
-
 /*
  * Shortcuts
  */
diff --git a/mm/slab.c b/mm/slab.c
index 81804921c538..da2f6a5dd8fa 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -3665,12 +3665,6 @@ void *__kmalloc(size_t size, gfp_t flags)
 }
 EXPORT_SYMBOL(__kmalloc);
 
-void *__kmalloc_track_caller(size_t size, gfp_t flags, unsigned long caller)
-{
-	return __do_kmalloc(size, flags, caller);
-}
-EXPORT_SYMBOL(__kmalloc_track_caller);
-
 /**
  * kmem_cache_free - Deallocate an object
  * @cachep: The cache the allocation was from.
diff --git a/mm/slob.c b/mm/slob.c
index c54aad6b106c..80cdbe4f0d67 100644
--- a/mm/slob.c
+++ b/mm/slob.c
@@ -530,12 +530,6 @@ void *__kmalloc(size_t size, gfp_t gfp)
 }
 EXPORT_SYMBOL(__kmalloc);
 
-void *__kmalloc_track_caller(size_t size, gfp_t gfp, unsigned long caller)
-{
-	return __do_kmalloc_node(size, gfp, NUMA_NO_NODE, caller);
-}
-EXPORT_SYMBOL(__kmalloc_track_caller);
-
 void *__kmalloc_node_track_caller(size_t size, gfp_t gfp,
 					int node, unsigned long caller)
 {
diff --git a/mm/slub.c b/mm/slub.c
index a5b3a4484263..7c284535a62b 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -4904,28 +4904,6 @@ int __kmem_cache_create(struct kmem_cache *s, slab_flags_t flags)
 	return 0;
 }
 
-void *__kmalloc_track_caller(size_t size, gfp_t gfpflags, unsigned long caller)
-{
-	struct kmem_cache *s;
-	void *ret;
-
-	if (unlikely(size > KMALLOC_MAX_CACHE_SIZE))
-		return kmalloc_large(size, gfpflags);
-
-	s = kmalloc_slab(size, gfpflags);
-
-	if (unlikely(ZERO_OR_NULL_PTR(s)))
-		return s;
-
-	ret = slab_alloc(s, NULL, gfpflags, caller, size);
-
-	/* Honor the call site pointer we received. */
-	trace_kmalloc(caller, ret, s, size, s->size, gfpflags);
-
-	return ret;
-}
-EXPORT_SYMBOL(__kmalloc_track_caller);
-
 void *__kmalloc_node_track_caller(size_t size, gfp_t gfpflags,
 					int node, unsigned long caller)
 {
-- 
2.34.1