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authorSuren Baghdasaryan <surenb@google.com>2023-02-02 18:24:20 +0000
committerKent Overstreet <kent.overstreet@linux.dev>2023-08-14 12:28:43 -0400
commit1c1b21a7d868009d8927b27679232e58774fb234 (patch)
tree34057952d889a73ec1742041a9433d244cf2991d
parenta1d85d2c5a0dbf7c262f149fcbfcb1390a2a93e6 (diff)
mm/slab: enable slab allocation tagging for kmalloc and friends
Redefine kmalloc, krealloc, kzalloc, kcalloc, etc. to record allocations and deallocations done by these functions. Signed-off-by: Suren Baghdasaryan <surenb@google.com> Co-developed-by: Kent Overstreet <kent.overstreet@linux.dev> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
-rw-r--r--include/linux/slab.h174
-rw-r--r--mm/slab.c18
-rw-r--r--mm/slab_common.c38
-rw-r--r--mm/slub.c19
-rw-r--r--mm/util.c12
5 files changed, 126 insertions, 135 deletions
diff --git a/include/linux/slab.h b/include/linux/slab.h
index 99a146f3cedf..639f4632c7a1 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -213,7 +213,9 @@ int kmem_cache_shrink(struct kmem_cache *s);
/*
* Common kmalloc functions provided by all allocators
*/
-void * __must_check krealloc(const void *objp, size_t new_size, gfp_t flags) __realloc_size(2);
+void * __must_check krealloc_noprof(const void *objp, size_t new_size, gfp_t flags) __realloc_size(2);
+#define krealloc(...) alloc_hooks(krealloc_noprof(__VA_ARGS__))
+
void kfree(const void *objp);
void kfree_sensitive(const void *objp);
size_t __ksize(const void *objp);
@@ -451,7 +453,10 @@ static __always_inline unsigned int __kmalloc_index(size_t size,
static_assert(PAGE_SHIFT <= 20);
#define kmalloc_index(s) __kmalloc_index(s, true)
-void *__kmalloc(size_t size, gfp_t flags) __assume_kmalloc_alignment __alloc_size(1);
+#include <linux/alloc_tag.h>
+
+void *__kmalloc_noprof(size_t size, gfp_t flags) __assume_kmalloc_alignment __alloc_size(1);
+#define __kmalloc(...) alloc_hooks(__kmalloc_noprof(__VA_ARGS__))
/**
* kmem_cache_alloc - Allocate an object
@@ -463,9 +468,13 @@ void *__kmalloc(size_t size, gfp_t flags) __assume_kmalloc_alignment __alloc_siz
*
* Return: pointer to the new object or %NULL in case of error
*/
-void *kmem_cache_alloc(struct kmem_cache *cachep, gfp_t flags) __assume_slab_alignment __malloc;
-void *kmem_cache_alloc_lru(struct kmem_cache *s, struct list_lru *lru,
- gfp_t gfpflags) __assume_slab_alignment __malloc;
+void *kmem_cache_alloc_noprof(struct kmem_cache *cachep, gfp_t flags) __assume_slab_alignment __malloc;
+#define kmem_cache_alloc(...) alloc_hooks(kmem_cache_alloc_noprof(__VA_ARGS__))
+
+void *kmem_cache_alloc_lru_noprof(struct kmem_cache *s, struct list_lru *lru,
+ gfp_t gfpflags) __assume_slab_alignment __malloc;
+#define kmem_cache_alloc_lru(...) alloc_hooks(kmem_cache_alloc_lru_noprof(__VA_ARGS__))
+
void kmem_cache_free(struct kmem_cache *s, void *objp);
/*
@@ -476,29 +485,40 @@ void kmem_cache_free(struct kmem_cache *s, void *objp);
* Note that interrupts must be enabled when calling these functions.
*/
void kmem_cache_free_bulk(struct kmem_cache *s, size_t size, void **p);
-int kmem_cache_alloc_bulk(struct kmem_cache *s, gfp_t flags, size_t size, void **p);
+
+int kmem_cache_alloc_bulk_noprof(struct kmem_cache *s, gfp_t flags, size_t size, void **p);
+#define kmem_cache_alloc_bulk(...) alloc_hooks(kmem_cache_alloc_bulk_noprof(__VA_ARGS__))
static __always_inline void kfree_bulk(size_t size, void **p)
{
kmem_cache_free_bulk(NULL, size, p);
}
-void *__kmalloc_node(size_t size, gfp_t flags, int node) __assume_kmalloc_alignment
+void *__kmalloc_node_noprof(size_t size, gfp_t flags, int node) __assume_kmalloc_alignment
__alloc_size(1);
-void *kmem_cache_alloc_node(struct kmem_cache *s, gfp_t flags, int node) __assume_slab_alignment
- __malloc;
+#define __kmalloc_node(...) alloc_hooks(__kmalloc_node_noprof(__VA_ARGS__))
-void *kmalloc_trace(struct kmem_cache *s, gfp_t flags, size_t size)
+void *kmem_cache_alloc_node_noprof(struct kmem_cache *s, gfp_t flags, int node) __assume_slab_alignment
+ __malloc;
+#define kmem_cache_alloc_node(...) alloc_hooks(kmem_cache_alloc_node_noprof(__VA_ARGS__))
+
+void *kmalloc_trace_noprof(struct kmem_cache *s, gfp_t flags, size_t size)
__assume_kmalloc_alignment __alloc_size(3);
-void *kmalloc_node_trace(struct kmem_cache *s, gfp_t gfpflags,
- int node, size_t size) __assume_kmalloc_alignment
+void *kmalloc_node_trace_noprof(struct kmem_cache *s, gfp_t gfpflags,
+ int node, size_t size) __assume_kmalloc_alignment
__alloc_size(4);
-void *kmalloc_large(size_t size, gfp_t flags) __assume_page_alignment
+#define kmalloc_trace(...) alloc_hooks(kmalloc_trace_noprof(__VA_ARGS__))
+
+#define kmalloc_node_trace(...) alloc_hooks(kmalloc_node_trace_noprof(__VA_ARGS__))
+
+void *kmalloc_large_noprof(size_t size, gfp_t flags) __assume_page_alignment
__alloc_size(1);
+#define kmalloc_large(...) alloc_hooks(kmalloc_large_noprof(__VA_ARGS__))
-void *kmalloc_large_node(size_t size, gfp_t flags, int node) __assume_page_alignment
+void *kmalloc_large_node_noprof(size_t size, gfp_t flags, int node) __assume_page_alignment
__alloc_size(1);
+#define kmalloc_large_node(...) alloc_hooks(kmalloc_large_node_noprof(__VA_ARGS__))
/**
* kmalloc - allocate kernel memory
@@ -554,37 +574,39 @@ void *kmalloc_large_node(size_t size, gfp_t flags, int node) __assume_page_align
* Try really hard to succeed the allocation but fail
* eventually.
*/
-static __always_inline __alloc_size(1) void *kmalloc(size_t size, gfp_t flags)
+static __always_inline __alloc_size(1) void *kmalloc_noprof(size_t size, gfp_t flags)
{
if (__builtin_constant_p(size) && size) {
unsigned int index;
if (size > KMALLOC_MAX_CACHE_SIZE)
- return kmalloc_large(size, flags);
+ return kmalloc_large_noprof(size, flags);
index = kmalloc_index(size);
- return kmalloc_trace(
+ return kmalloc_trace_noprof(
kmalloc_caches[kmalloc_type(flags)][index],
flags, size);
}
- return __kmalloc(size, flags);
+ return __kmalloc_noprof(size, flags);
}
+#define kmalloc(...) alloc_hooks(kmalloc_noprof(__VA_ARGS__))
-static __always_inline __alloc_size(1) void *kmalloc_node(size_t size, gfp_t flags, int node)
+static __always_inline __alloc_size(1) void *kmalloc_node_noprof(size_t size, gfp_t flags, int node)
{
if (__builtin_constant_p(size) && size) {
unsigned int index;
if (size > KMALLOC_MAX_CACHE_SIZE)
- return kmalloc_large_node(size, flags, node);
+ return kmalloc_large_node_noprof(size, flags, node);
index = kmalloc_index(size);
- return kmalloc_node_trace(
+ return kmalloc_node_trace_noprof(
kmalloc_caches[kmalloc_type(flags)][index],
flags, node, size);
}
- return __kmalloc_node(size, flags, node);
+ return __kmalloc_node_noprof(size, flags, node);
}
+#define kmalloc_node(...) alloc_hooks(kmalloc_node_noprof(__VA_ARGS__))
/**
* kmalloc_array - allocate memory for an array.
@@ -592,16 +614,17 @@ static __always_inline __alloc_size(1) void *kmalloc_node(size_t size, gfp_t fla
* @size: element size.
* @flags: the type of memory to allocate (see kmalloc).
*/
-static inline __alloc_size(1, 2) void *kmalloc_array(size_t n, size_t size, gfp_t flags)
+static inline __alloc_size(1, 2) void *kmalloc_array_noprof(size_t n, size_t size, gfp_t flags)
{
size_t bytes;
if (unlikely(check_mul_overflow(n, size, &bytes)))
return NULL;
if (__builtin_constant_p(n) && __builtin_constant_p(size))
- return kmalloc(bytes, flags);
- return __kmalloc(bytes, flags);
+ return kmalloc_noprof(bytes, flags);
+ return kmalloc_noprof(bytes, flags);
}
+#define kmalloc_array(...) alloc_hooks(kmalloc_array_noprof(__VA_ARGS__))
/**
* krealloc_array - reallocate memory for an array.
@@ -610,18 +633,19 @@ static inline __alloc_size(1, 2) void *kmalloc_array(size_t n, size_t size, gfp_
* @new_size: new size of a single member of the array
* @flags: the type of memory to allocate (see kmalloc)
*/
-static inline __realloc_size(2, 3) void * __must_check krealloc_array(void *p,
- size_t new_n,
- size_t new_size,
- gfp_t flags)
+static inline __realloc_size(2, 3) void * __must_check krealloc_array_noprof(void *p,
+ size_t new_n,
+ size_t new_size,
+ gfp_t flags)
{
size_t bytes;
if (unlikely(check_mul_overflow(new_n, new_size, &bytes)))
return NULL;
- return krealloc(p, bytes, flags);
+ return krealloc_noprof(p, bytes, flags);
}
+#define krealloc_array(...) alloc_hooks(krealloc_array_noprof(__VA_ARGS__))
/**
* kcalloc - allocate memory for an array. The memory is set to zero.
@@ -629,16 +653,12 @@ static inline __realloc_size(2, 3) void * __must_check krealloc_array(void *p,
* @size: element size.
* @flags: the type of memory to allocate (see kmalloc).
*/
-static inline __alloc_size(1, 2) void *kcalloc(size_t n, size_t size, gfp_t flags)
-{
- return kmalloc_array(n, size, flags | __GFP_ZERO);
-}
+#define kcalloc(_n, _size, _flags) kmalloc_array(_n, _size, (_flags) | __GFP_ZERO)
-void *__kmalloc_node_track_caller(size_t size, gfp_t flags, int node,
+void *kmalloc_node_track_caller_noprof(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_)
+#define kmalloc_node_track_caller(size, flags, node) \
+ alloc_hooks(kmalloc_node_track_caller_noprof(size, flags, node, _RET_IP_))
/*
* kmalloc_track_caller is a special version of kmalloc that records the
@@ -648,11 +668,9 @@ void *__kmalloc_node_track_caller(size_t size, gfp_t flags, int node,
* allocator where we care about the real place the memory allocation
* request comes from.
*/
-#define kmalloc_track_caller(size, flags) \
- __kmalloc_node_track_caller(size, flags, \
- NUMA_NO_NODE, _RET_IP_)
+#define kmalloc_track_caller(size, flags) kmalloc_node_track_caller(size, flags, NUMA_NO_NODE)
-static inline __alloc_size(1, 2) void *kmalloc_array_node(size_t n, size_t size, gfp_t flags,
+static inline __alloc_size(1, 2) void *kmalloc_array_node_noprof(size_t n, size_t size, gfp_t flags,
int node)
{
size_t bytes;
@@ -660,75 +678,47 @@ static inline __alloc_size(1, 2) void *kmalloc_array_node(size_t n, size_t size,
if (unlikely(check_mul_overflow(n, size, &bytes)))
return NULL;
if (__builtin_constant_p(n) && __builtin_constant_p(size))
- return kmalloc_node(bytes, flags, node);
- return __kmalloc_node(bytes, flags, node);
+ return kmalloc_node_noprof(bytes, flags, node);
+ return __kmalloc_node_noprof(bytes, flags, node);
}
+#define kmalloc_array_node(...) alloc_hooks(kmalloc_array_node_noprof(__VA_ARGS__))
-static inline __alloc_size(1, 2) void *kcalloc_node(size_t n, size_t size, gfp_t flags, int node)
-{
- return kmalloc_array_node(n, size, flags | __GFP_ZERO, node);
-}
+#define kcalloc_node(_n, _size, _flags, _node) kmalloc_array_node(_n, _size, (_flags) | __GFP_ZERO, _node)
/*
* Shortcuts
*/
-static inline void *kmem_cache_zalloc(struct kmem_cache *k, gfp_t flags)
-{
- return kmem_cache_alloc(k, flags | __GFP_ZERO);
-}
+#define kmem_cache_zalloc(_k, _flags) kmem_cache_alloc(_k, (_flags)|__GFP_ZERO)
/**
* kzalloc - allocate memory. The memory is set to zero.
* @size: how many bytes of memory are required.
* @flags: the type of memory to allocate (see kmalloc).
*/
-static inline __alloc_size(1) void *kzalloc(size_t size, gfp_t flags)
-{
- return kmalloc(size, flags | __GFP_ZERO);
-}
+#define kzalloc(_size, _flags) kmalloc(_size, (_flags)|__GFP_ZERO)
+#define kzalloc_node(_size, _flags, _node) kmalloc_node(_size, (_flags)|__GFP_ZERO, _node)
-/**
- * kzalloc_node - allocate zeroed memory from a particular memory node.
- * @size: how many bytes of memory are required.
- * @flags: the type of memory to allocate (see kmalloc).
- * @node: memory node from which to allocate
- */
-static inline __alloc_size(1) void *kzalloc_node(size_t size, gfp_t flags, int node)
-{
- return kmalloc_node(size, flags | __GFP_ZERO, node);
-}
-
-extern void *kvmalloc_node(size_t size, gfp_t flags, int node) __alloc_size(1);
-static inline __alloc_size(1) void *kvmalloc(size_t size, gfp_t flags)
-{
- return kvmalloc_node(size, flags, NUMA_NO_NODE);
-}
-static inline __alloc_size(1) void *kvzalloc_node(size_t size, gfp_t flags, int node)
-{
- return kvmalloc_node(size, flags | __GFP_ZERO, node);
-}
-static inline __alloc_size(1) void *kvzalloc(size_t size, gfp_t flags)
-{
- return kvmalloc(size, flags | __GFP_ZERO);
-}
+extern void *kvmalloc_node_noprof(size_t size, gfp_t flags, int node) __alloc_size(1);
+#define kvmalloc_node(...) alloc_hooks(kvmalloc_node_noprof(__VA_ARGS__))
-static inline __alloc_size(1, 2) void *kvmalloc_array(size_t n, size_t size, gfp_t flags)
-{
- size_t bytes;
+#define kvmalloc(_size, _flags) kvmalloc_node(_size, _flags, NUMA_NO_NODE)
+#define kvzalloc(_size, _flags) kvmalloc(_size, _flags|__GFP_ZERO)
- if (unlikely(check_mul_overflow(n, size, &bytes)))
- return NULL;
+#define kvzalloc_node(_size, _flags, _node) kvmalloc_node(_size, _flags|__GFP_ZERO, _node)
- return kvmalloc(bytes, flags);
-}
+#define kvmalloc_array(_n, _size, _flags) \
+({ \
+ size_t _bytes; \
+ \
+ !check_mul_overflow(_n, _size, &_bytes) ? kvmalloc(_bytes, _flags) : NULL; \
+})
-static inline __alloc_size(1, 2) void *kvcalloc(size_t n, size_t size, gfp_t flags)
-{
- return kvmalloc_array(n, size, flags | __GFP_ZERO);
-}
+#define kvcalloc(_n, _size, _flags) kvmalloc_array(_n, _size, _flags|__GFP_ZERO)
-extern void *kvrealloc(const void *p, size_t oldsize, size_t newsize, gfp_t flags)
+extern void *kvrealloc_noprof(const void *p, size_t oldsize, size_t newsize, gfp_t flags)
__realloc_size(3);
+#define kvrealloc(...) alloc_hooks(kvrealloc_noprof(__VA_ARGS__))
+
extern void kvfree(const void *addr);
extern void kvfree_sensitive(const void *addr, size_t len);
diff --git a/mm/slab.c b/mm/slab.c
index 026f0c08708a..d02d2dd271c7 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -3448,18 +3448,18 @@ void *__kmem_cache_alloc_lru(struct kmem_cache *cachep, struct list_lru *lru,
return ret;
}
-void *kmem_cache_alloc(struct kmem_cache *cachep, gfp_t flags)
+void *kmem_cache_alloc_noprof(struct kmem_cache *cachep, gfp_t flags)
{
return __kmem_cache_alloc_lru(cachep, NULL, flags);
}
-EXPORT_SYMBOL(kmem_cache_alloc);
+EXPORT_SYMBOL(kmem_cache_alloc_noprof);
-void *kmem_cache_alloc_lru(struct kmem_cache *cachep, struct list_lru *lru,
+void *kmem_cache_alloc_lru_noprof(struct kmem_cache *cachep, struct list_lru *lru,
gfp_t flags)
{
return __kmem_cache_alloc_lru(cachep, lru, flags);
}
-EXPORT_SYMBOL(kmem_cache_alloc_lru);
+EXPORT_SYMBOL(kmem_cache_alloc_lru_noprof);
static __always_inline void
cache_alloc_debugcheck_after_bulk(struct kmem_cache *s, gfp_t flags,
@@ -3471,8 +3471,8 @@ cache_alloc_debugcheck_after_bulk(struct kmem_cache *s, gfp_t flags,
p[i] = cache_alloc_debugcheck_after(s, flags, p[i], caller);
}
-int kmem_cache_alloc_bulk(struct kmem_cache *s, gfp_t flags, size_t size,
- void **p)
+int kmem_cache_alloc_bulk_noprof(struct kmem_cache *s, gfp_t flags, size_t size,
+ void **p)
{
struct obj_cgroup *objcg = NULL;
unsigned long irqflags;
@@ -3510,7 +3510,7 @@ error:
kmem_cache_free_bulk(s, i, p);
return 0;
}
-EXPORT_SYMBOL(kmem_cache_alloc_bulk);
+EXPORT_SYMBOL(kmem_cache_alloc_bulk_noprof);
/**
* kmem_cache_alloc_node - Allocate an object on the specified node
@@ -3525,7 +3525,7 @@ EXPORT_SYMBOL(kmem_cache_alloc_bulk);
*
* Return: pointer to the new object or %NULL in case of error
*/
-void *kmem_cache_alloc_node(struct kmem_cache *cachep, gfp_t flags, int nodeid)
+void *kmem_cache_alloc_node_noprof(struct kmem_cache *cachep, gfp_t flags, int nodeid)
{
void *ret = slab_alloc_node(cachep, NULL, flags, nodeid, cachep->object_size, _RET_IP_);
@@ -3533,7 +3533,7 @@ void *kmem_cache_alloc_node(struct kmem_cache *cachep, gfp_t flags, int nodeid)
return ret;
}
-EXPORT_SYMBOL(kmem_cache_alloc_node);
+EXPORT_SYMBOL(kmem_cache_alloc_node_noprof);
void *__kmem_cache_alloc_node(struct kmem_cache *cachep, gfp_t flags,
int nodeid, size_t orig_size,
diff --git a/mm/slab_common.c b/mm/slab_common.c
index ed918992616e..14290cf2b23e 100644
--- a/mm/slab_common.c
+++ b/mm/slab_common.c
@@ -1018,24 +1018,24 @@ void *__do_kmalloc_node(size_t size, gfp_t flags, int node, unsigned long caller
return ret;
}
-void *__kmalloc_node(size_t size, gfp_t flags, int node)
+void *__kmalloc_node_noprof(size_t size, gfp_t flags, int node)
{
return __do_kmalloc_node(size, flags, node, _RET_IP_);
}
-EXPORT_SYMBOL(__kmalloc_node);
+EXPORT_SYMBOL(__kmalloc_node_noprof);
-void *__kmalloc(size_t size, gfp_t flags)
+void *__kmalloc_noprof(size_t size, gfp_t flags)
{
return __do_kmalloc_node(size, flags, NUMA_NO_NODE, _RET_IP_);
}
-EXPORT_SYMBOL(__kmalloc);
+EXPORT_SYMBOL(__kmalloc_noprof);
-void *__kmalloc_node_track_caller(size_t size, gfp_t flags,
- int node, unsigned long caller)
+void *kmalloc_node_track_caller_noprof(size_t size, gfp_t flags,
+ int node, unsigned long caller)
{
return __do_kmalloc_node(size, flags, node, caller);
}
-EXPORT_SYMBOL(__kmalloc_node_track_caller);
+EXPORT_SYMBOL(kmalloc_node_track_caller_noprof);
/**
* kfree - free previously allocated memory
@@ -1102,7 +1102,7 @@ size_t __ksize(const void *object)
return slab_ksize(folio_slab(folio)->slab_cache);
}
-void *kmalloc_trace(struct kmem_cache *s, gfp_t gfpflags, size_t size)
+void *kmalloc_trace_noprof(struct kmem_cache *s, gfp_t gfpflags, size_t size)
{
void *ret = __kmem_cache_alloc_node(s, gfpflags, NUMA_NO_NODE,
size, _RET_IP_);
@@ -1112,9 +1112,9 @@ void *kmalloc_trace(struct kmem_cache *s, gfp_t gfpflags, size_t size)
ret = kasan_kmalloc(s, ret, size, gfpflags);
return ret;
}
-EXPORT_SYMBOL(kmalloc_trace);
+EXPORT_SYMBOL(kmalloc_trace_noprof);
-void *kmalloc_node_trace(struct kmem_cache *s, gfp_t gfpflags,
+void *kmalloc_node_trace_noprof(struct kmem_cache *s, gfp_t gfpflags,
int node, size_t size)
{
void *ret = __kmem_cache_alloc_node(s, gfpflags, node, size, _RET_IP_);
@@ -1124,7 +1124,7 @@ void *kmalloc_node_trace(struct kmem_cache *s, gfp_t gfpflags,
ret = kasan_kmalloc(s, ret, size, gfpflags);
return ret;
}
-EXPORT_SYMBOL(kmalloc_node_trace);
+EXPORT_SYMBOL(kmalloc_node_trace_noprof);
gfp_t kmalloc_fix_flags(gfp_t flags)
{
@@ -1154,7 +1154,7 @@ static void *__kmalloc_large_node(size_t size, gfp_t flags, int node)
flags = kmalloc_fix_flags(flags);
flags |= __GFP_COMP;
- page = alloc_pages_node(node, flags, order);
+ page = alloc_pages_node_noprof(node, flags, order);
if (page) {
ptr = page_address(page);
mod_lruvec_page_state(page, NR_SLAB_UNRECLAIMABLE_B,
@@ -1169,7 +1169,7 @@ static void *__kmalloc_large_node(size_t size, gfp_t flags, int node)
return ptr;
}
-void *kmalloc_large(size_t size, gfp_t flags)
+void *kmalloc_large_noprof(size_t size, gfp_t flags)
{
void *ret = __kmalloc_large_node(size, flags, NUMA_NO_NODE);
@@ -1177,9 +1177,9 @@ void *kmalloc_large(size_t size, gfp_t flags)
flags, NUMA_NO_NODE);
return ret;
}
-EXPORT_SYMBOL(kmalloc_large);
+EXPORT_SYMBOL(kmalloc_large_noprof);
-void *kmalloc_large_node(size_t size, gfp_t flags, int node)
+void *kmalloc_large_node_noprof(size_t size, gfp_t flags, int node)
{
void *ret = __kmalloc_large_node(size, flags, node);
@@ -1187,7 +1187,7 @@ void *kmalloc_large_node(size_t size, gfp_t flags, int node)
flags, node);
return ret;
}
-EXPORT_SYMBOL(kmalloc_large_node);
+EXPORT_SYMBOL(kmalloc_large_node_noprof);
#ifdef CONFIG_SLAB_FREELIST_RANDOM
/* Randomize a generic freelist */
@@ -1439,7 +1439,7 @@ __do_krealloc(const void *p, size_t new_size, gfp_t flags)
return (void *)p;
}
- ret = kmalloc_track_caller(new_size, flags);
+ ret = kmalloc_node_track_caller_noprof(new_size, flags, NUMA_NO_NODE, _RET_IP_);
if (ret && p) {
/* Disable KASAN checks as the object's redzone is accessed. */
kasan_disable_current();
@@ -1463,7 +1463,7 @@ __do_krealloc(const void *p, size_t new_size, gfp_t flags)
*
* Return: pointer to the allocated memory or %NULL in case of error
*/
-void *krealloc(const void *p, size_t new_size, gfp_t flags)
+void *krealloc_noprof(const void *p, size_t new_size, gfp_t flags)
{
void *ret;
@@ -1478,7 +1478,7 @@ void *krealloc(const void *p, size_t new_size, gfp_t flags)
return ret;
}
-EXPORT_SYMBOL(krealloc);
+EXPORT_SYMBOL(krealloc_noprof);
/**
* kfree_sensitive - Clear sensitive information in memory before freeing
diff --git a/mm/slub.c b/mm/slub.c
index 507b71372ee4..87a28b371b4f 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -3470,18 +3470,18 @@ void *__kmem_cache_alloc_lru(struct kmem_cache *s, struct list_lru *lru,
return ret;
}
-void *kmem_cache_alloc(struct kmem_cache *s, gfp_t gfpflags)
+void *kmem_cache_alloc_noprof(struct kmem_cache *s, gfp_t gfpflags)
{
return __kmem_cache_alloc_lru(s, NULL, gfpflags);
}
-EXPORT_SYMBOL(kmem_cache_alloc);
+EXPORT_SYMBOL(kmem_cache_alloc_noprof);
-void *kmem_cache_alloc_lru(struct kmem_cache *s, struct list_lru *lru,
+void *kmem_cache_alloc_lru_noprof(struct kmem_cache *s, struct list_lru *lru,
gfp_t gfpflags)
{
return __kmem_cache_alloc_lru(s, lru, gfpflags);
}
-EXPORT_SYMBOL(kmem_cache_alloc_lru);
+EXPORT_SYMBOL(kmem_cache_alloc_lru_noprof);
void *__kmem_cache_alloc_node(struct kmem_cache *s, gfp_t gfpflags,
int node, size_t orig_size,
@@ -3491,7 +3491,7 @@ void *__kmem_cache_alloc_node(struct kmem_cache *s, gfp_t gfpflags,
caller, orig_size);
}
-void *kmem_cache_alloc_node(struct kmem_cache *s, gfp_t gfpflags, int node)
+void *kmem_cache_alloc_node_noprof(struct kmem_cache *s, gfp_t gfpflags, int node)
{
void *ret = slab_alloc_node(s, NULL, gfpflags, node, _RET_IP_, s->object_size);
@@ -3499,7 +3499,7 @@ void *kmem_cache_alloc_node(struct kmem_cache *s, gfp_t gfpflags, int node)
return ret;
}
-EXPORT_SYMBOL(kmem_cache_alloc_node);
+EXPORT_SYMBOL(kmem_cache_alloc_node_noprof);
static noinline void free_to_partial_list(
struct kmem_cache *s, struct slab *slab,
@@ -3779,6 +3779,7 @@ static __fastpath_inline void slab_free(struct kmem_cache *s, struct slab *slab,
unsigned long addr)
{
memcg_slab_free_hook(s, slab, p, cnt);
+ alloc_tagging_slab_free_hook(s, slab, p, cnt);
/*
* With KASAN enabled slab_free_freelist_hook modifies the freelist
* to remove objects, whose reuse must be delayed.
@@ -4009,8 +4010,8 @@ error:
#endif /* CONFIG_SLUB_TINY */
/* Note that interrupts must be enabled when calling this function. */
-int kmem_cache_alloc_bulk(struct kmem_cache *s, gfp_t flags, size_t size,
- void **p)
+int kmem_cache_alloc_bulk_noprof(struct kmem_cache *s, gfp_t flags, size_t size,
+ void **p)
{
int i;
struct obj_cgroup *objcg = NULL;
@@ -4034,7 +4035,7 @@ int kmem_cache_alloc_bulk(struct kmem_cache *s, gfp_t flags, size_t size,
slab_want_init_on_alloc(flags, s), s->object_size);
return i;
}
-EXPORT_SYMBOL(kmem_cache_alloc_bulk);
+EXPORT_SYMBOL(kmem_cache_alloc_bulk_noprof);
/*
diff --git a/mm/util.c b/mm/util.c
index dd12b9531ac4..9b10e2350689 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -564,7 +564,7 @@ unsigned long vm_mmap(struct file *file, unsigned long addr,
EXPORT_SYMBOL(vm_mmap);
/**
- * kvmalloc_node - attempt to allocate physically contiguous memory, but upon
+ * kvmalloc_node_noprof - attempt to allocate physically contiguous memory, but upon
* failure, fall back to non-contiguous (vmalloc) allocation.
* @size: size of the request.
* @flags: gfp mask for the allocation - must be compatible (superset) with GFP_KERNEL.
@@ -579,7 +579,7 @@ EXPORT_SYMBOL(vm_mmap);
*
* Return: pointer to the allocated memory of %NULL in case of failure
*/
-void *kvmalloc_node(size_t size, gfp_t flags, int node)
+void *kvmalloc_node_noprof(size_t size, gfp_t flags, int node)
{
gfp_t kmalloc_flags = flags;
void *ret;
@@ -601,7 +601,7 @@ void *kvmalloc_node(size_t size, gfp_t flags, int node)
kmalloc_flags &= ~__GFP_NOFAIL;
}
- ret = kmalloc_node(size, kmalloc_flags, node);
+ ret = kmalloc_node_noprof(size, kmalloc_flags, node);
/*
* It doesn't really make sense to fallback to vmalloc for sub page
@@ -630,7 +630,7 @@ void *kvmalloc_node(size_t size, gfp_t flags, int node)
flags, PAGE_KERNEL, VM_ALLOW_HUGE_VMAP,
node, __builtin_return_address(0));
}
-EXPORT_SYMBOL(kvmalloc_node);
+EXPORT_SYMBOL(kvmalloc_node_noprof);
/**
* kvfree() - Free memory.
@@ -669,7 +669,7 @@ void kvfree_sensitive(const void *addr, size_t len)
}
EXPORT_SYMBOL(kvfree_sensitive);
-void *kvrealloc(const void *p, size_t oldsize, size_t newsize, gfp_t flags)
+void *kvrealloc_noprof(const void *p, size_t oldsize, size_t newsize, gfp_t flags)
{
void *newp;
@@ -682,7 +682,7 @@ void *kvrealloc(const void *p, size_t oldsize, size_t newsize, gfp_t flags)
kvfree(p);
return newp;
}
-EXPORT_SYMBOL(kvrealloc);
+EXPORT_SYMBOL(kvrealloc_noprof);
/**
* __vmalloc_array - allocate memory for a virtually contiguous array.