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Date: Thu, 14 Apr 2022 17:57:16 +0900
From: Hyeonggon Yoo <42.hyeyoo@...il.com>
To: Vlastimil Babka <vbabka@...e.cz>
Cc: Marco Elver <elver@...gle.com>,
Matthew WilCox <willy@...radead.org>,
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>,
Hyeonggon Yoo <42.hyeyoo@...il.com>,
Roman Gushchin <roman.gushchin@...ux.dev>, linux-mm@...ck.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v2 12/23] mm/slab_common: cleanup kmalloc()
Now that kmalloc() and kmalloc_node() do same job, make kmalloc()
wrapper of kmalloc_node().
Remove kmem_cache_alloc_trace() that is now unused.
Signed-off-by: Hyeonggon Yoo <42.hyeyoo@...il.com>
---
include/linux/slab.h | 93 +++++++++++++++-----------------------------
mm/slab.c | 16 --------
mm/slub.c | 12 ------
3 files changed, 32 insertions(+), 89 deletions(-)
diff --git a/include/linux/slab.h b/include/linux/slab.h
index eb457f20f415..ea168f8a248d 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -497,23 +497,10 @@ static __always_inline void kfree_bulk(size_t size, void **p)
}
#ifdef CONFIG_TRACING
-extern void *kmem_cache_alloc_trace(struct kmem_cache *s, gfp_t flags, size_t size)
- __assume_slab_alignment __alloc_size(3);
-
extern void *kmem_cache_alloc_node_trace(struct kmem_cache *s, gfp_t gfpflags,
int node, size_t size) __assume_slab_alignment
__alloc_size(4);
-
#else /* CONFIG_TRACING */
-static __always_inline __alloc_size(3) void *kmem_cache_alloc_trace(struct kmem_cache *s,
- gfp_t flags, size_t size)
-{
- void *ret = kmem_cache_alloc(s, flags);
-
- ret = kasan_kmalloc(s, ret, size, flags);
- return ret;
-}
-
static __always_inline void *kmem_cache_alloc_node_trace(struct kmem_cache *s, gfp_t gfpflags,
int node, size_t size)
{
@@ -532,6 +519,37 @@ static __always_inline void *kmalloc_large(size_t size, gfp_t flags)
return kmalloc_large_node(size, flags, NUMA_NO_NODE);
}
+#ifndef CONFIG_SLOB
+static __always_inline __alloc_size(1) void *kmalloc_node(size_t size, gfp_t flags, int node)
+{
+ if (__builtin_constant_p(size)) {
+ unsigned int index;
+
+ if (size > KMALLOC_MAX_CACHE_SIZE)
+ return kmalloc_large_node(size, flags, node);
+
+ index = kmalloc_index(size);
+
+ if (!index)
+ return ZERO_SIZE_PTR;
+
+ return kmem_cache_alloc_node_trace(
+ kmalloc_caches[kmalloc_type(flags)][index],
+ flags, node, size);
+ }
+ return __kmalloc_node(size, flags, node);
+}
+#else
+static __always_inline __alloc_size(1) void *kmalloc_node(size_t size, gfp_t flags, int node)
+{
+ if (__builtin_constant_p(size) && size > KMALLOC_MAX_CACHE_SIZE)
+ return kmalloc_large_node(size, flags, node);
+
+ return __kmalloc_node(size, flags, node);
+}
+#endif
+
+
/**
* kmalloc - allocate memory
* @size: how many bytes of memory are required.
@@ -588,55 +606,8 @@ static __always_inline void *kmalloc_large(size_t size, gfp_t flags)
*/
static __always_inline __alloc_size(1) void *kmalloc(size_t size, gfp_t flags)
{
- if (__builtin_constant_p(size)) {
-#ifndef CONFIG_SLOB
- unsigned int index;
-#endif
- if (size > KMALLOC_MAX_CACHE_SIZE)
- return kmalloc_large(size, flags);
-#ifndef CONFIG_SLOB
- index = kmalloc_index(size);
-
- if (!index)
- return ZERO_SIZE_PTR;
-
- return kmem_cache_alloc_trace(
- kmalloc_caches[kmalloc_type(flags)][index],
- flags, size);
-#endif
- }
- return __kmalloc(size, flags);
-}
-
-#ifndef CONFIG_SLOB
-static __always_inline __alloc_size(1) void *kmalloc_node(size_t size, gfp_t flags, int node)
-{
- if (__builtin_constant_p(size)) {
- unsigned int index;
-
- if (size > KMALLOC_MAX_CACHE_SIZE)
- return kmalloc_large_node(size, flags, node);
-
- index = kmalloc_index(size);
-
- if (!index)
- return ZERO_SIZE_PTR;
-
- return kmem_cache_alloc_node_trace(
- kmalloc_caches[kmalloc_type(flags)][index],
- flags, node, size);
- }
- return __kmalloc_node(size, flags, node);
-}
-#else
-static __always_inline __alloc_size(1) void *kmalloc_node(size_t size, gfp_t flags, int node)
-{
- if (__builtin_constant_p(size) && size > KMALLOC_MAX_CACHE_SIZE)
- return kmalloc_large_node(size, flags, node);
-
- return __kmalloc_node(size, flags, node);
+ return kmalloc_node(size, flags, NUMA_NO_NODE);
}
-#endif
/**
* kmalloc_array - allocate memory for an array.
diff --git a/mm/slab.c b/mm/slab.c
index c5ffe54c207a..b0aaca017f42 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -3507,22 +3507,6 @@ int kmem_cache_alloc_bulk(struct kmem_cache *s, gfp_t flags, size_t size,
}
EXPORT_SYMBOL(kmem_cache_alloc_bulk);
-#ifdef CONFIG_TRACING
-void *
-kmem_cache_alloc_trace(struct kmem_cache *cachep, gfp_t flags, size_t size)
-{
- void *ret;
-
- ret = slab_alloc(cachep, NULL, flags, size, _RET_IP_);
-
- ret = kasan_kmalloc(cachep, ret, size, flags);
- trace_kmalloc(_RET_IP_, ret,
- size, cachep->size, flags);
- return ret;
-}
-EXPORT_SYMBOL(kmem_cache_alloc_trace);
-#endif
-
#ifdef CONFIG_TRACING
void *kmem_cache_alloc_node_trace(struct kmem_cache *cachep,
gfp_t flags,
diff --git a/mm/slub.c b/mm/slub.c
index 2a2be2a8a5d0..892988990da7 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -3216,18 +3216,6 @@ static __always_inline void *slab_alloc(struct kmem_cache *s, struct list_lru *l
return slab_alloc_node(s, lru, gfpflags, NUMA_NO_NODE, addr, orig_size);
}
-
-#ifdef CONFIG_TRACING
-void *kmem_cache_alloc_trace(struct kmem_cache *s, gfp_t gfpflags, size_t size)
-{
- void *ret = slab_alloc(s, NULL, gfpflags, _RET_IP_, size);
- trace_kmalloc(_RET_IP_, ret, size, s->size, gfpflags);
- ret = kasan_kmalloc(s, ret, size, gfpflags);
- return ret;
-}
-EXPORT_SYMBOL(kmem_cache_alloc_trace);
-#endif
-
void *__kmem_cache_alloc_node(struct kmem_cache *s, struct list_lru *lru, gfp_t gfpflags,
int node, unsigned long caller __maybe_unused)
{
--
2.32.0
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