| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <20240212213922.783301-25-surenb@google.com>
Date: Mon, 12 Feb 2024 13:39:10 -0800
From: Suren Baghdasaryan <surenb@...gle.com>
To: akpm@...ux-foundation.org
Cc: kent.overstreet@...ux.dev, mhocko@...e.com, vbabka@...e.cz,
hannes@...xchg.org, roman.gushchin@...ux.dev, mgorman@...e.de,
dave@...olabs.net, willy@...radead.org, liam.howlett@...cle.com,
corbet@....net, void@...ifault.com, peterz@...radead.org,
juri.lelli@...hat.com, catalin.marinas@....com, will@...nel.org,
arnd@...db.de, tglx@...utronix.de, mingo@...hat.com,
dave.hansen@...ux.intel.com, x86@...nel.org, peterx@...hat.com,
david@...hat.com, axboe@...nel.dk, mcgrof@...nel.org, masahiroy@...nel.org,
nathan@...nel.org, dennis@...nel.org, tj@...nel.org, muchun.song@...ux.dev,
rppt@...nel.org, paulmck@...nel.org, pasha.tatashin@...een.com,
yosryahmed@...gle.com, yuzhao@...gle.com, dhowells@...hat.com,
hughd@...gle.com, andreyknvl@...il.com, keescook@...omium.org,
ndesaulniers@...gle.com, vvvvvv@...gle.com, gregkh@...uxfoundation.org,
ebiggers@...gle.com, ytcoode@...il.com, vincent.guittot@...aro.org,
dietmar.eggemann@....com, rostedt@...dmis.org, bsegall@...gle.com,
bristot@...hat.com, vschneid@...hat.com, cl@...ux.com, penberg@...nel.org,
iamjoonsoo.kim@....com, 42.hyeyoo@...il.com, glider@...gle.com,
elver@...gle.com, dvyukov@...gle.com, shakeelb@...gle.com,
songmuchun@...edance.com, jbaron@...mai.com, rientjes@...gle.com,
minchan@...gle.com, kaleshsingh@...gle.com, surenb@...gle.com,
kernel-team@...roid.com, linux-doc@...r.kernel.org,
linux-kernel@...r.kernel.org, iommu@...ts.linux.dev,
linux-arch@...r.kernel.org, linux-fsdevel@...r.kernel.org, linux-mm@...ck.org,
linux-modules@...r.kernel.org, kasan-dev@...glegroups.com,
cgroups@...r.kernel.org
Subject: [PATCH v3 24/35] mempool: Hook up to memory allocation profiling
From: Kent Overstreet <kent.overstreet@...ux.dev>
This adds hooks to mempools for correctly annotating mempool-backed
allocations at the correct source line, so they show up correctly in
/sys/kernel/debug/allocations.
Various inline functions are converted to wrappers so that we can invoke
alloc_hooks() in fewer places.
Signed-off-by: Kent Overstreet <kent.overstreet@...ux.dev>
Signed-off-by: Suren Baghdasaryan <surenb@...gle.com>
---
include/linux/mempool.h | 73 ++++++++++++++++++++---------------------
mm/mempool.c | 36 ++++++++------------
2 files changed, 49 insertions(+), 60 deletions(-)
diff --git a/include/linux/mempool.h b/include/linux/mempool.h
index 7be1e32e6d42..69e65ca515ee 100644
--- a/include/linux/mempool.h
+++ b/include/linux/mempool.h
@@ -5,6 +5,8 @@
#ifndef _LINUX_MEMPOOL_H
#define _LINUX_MEMPOOL_H
+#include <linux/sched.h>
+#include <linux/alloc_tag.h>
#include <linux/wait.h>
#include <linux/compiler.h>
@@ -39,18 +41,32 @@ void mempool_exit(mempool_t *pool);
int mempool_init_node(mempool_t *pool, int min_nr, mempool_alloc_t *alloc_fn,
mempool_free_t *free_fn, void *pool_data,
gfp_t gfp_mask, int node_id);
-int mempool_init(mempool_t *pool, int min_nr, mempool_alloc_t *alloc_fn,
+
+int mempool_init_noprof(mempool_t *pool, int min_nr, mempool_alloc_t *alloc_fn,
mempool_free_t *free_fn, void *pool_data);
+#define mempool_init(...) \
+ alloc_hooks(mempool_init_noprof(__VA_ARGS__))
extern mempool_t *mempool_create(int min_nr, mempool_alloc_t *alloc_fn,
mempool_free_t *free_fn, void *pool_data);
-extern mempool_t *mempool_create_node(int min_nr, mempool_alloc_t *alloc_fn,
+
+extern mempool_t *mempool_create_node_noprof(int min_nr, mempool_alloc_t *alloc_fn,
mempool_free_t *free_fn, void *pool_data,
gfp_t gfp_mask, int nid);
+#define mempool_create_node(...) \
+ alloc_hooks(mempool_create_node_noprof(__VA_ARGS__))
+
+#define mempool_create(_min_nr, _alloc_fn, _free_fn, _pool_data) \
+ mempool_create_node(_min_nr, _alloc_fn, _free_fn, _pool_data, \
+ GFP_KERNEL, NUMA_NO_NODE)
extern int mempool_resize(mempool_t *pool, int new_min_nr);
extern void mempool_destroy(mempool_t *pool);
-extern void *mempool_alloc(mempool_t *pool, gfp_t gfp_mask) __malloc;
+
+extern void *mempool_alloc_noprof(mempool_t *pool, gfp_t gfp_mask) __malloc;
+#define mempool_alloc(...) \
+ alloc_hooks(mempool_alloc_noprof(__VA_ARGS__))
+
extern void *mempool_alloc_preallocated(mempool_t *pool) __malloc;
extern void mempool_free(void *element, mempool_t *pool);
@@ -62,19 +78,10 @@ extern void mempool_free(void *element, mempool_t *pool);
void *mempool_alloc_slab(gfp_t gfp_mask, void *pool_data);
void mempool_free_slab(void *element, void *pool_data);
-static inline int
-mempool_init_slab_pool(mempool_t *pool, int min_nr, struct kmem_cache *kc)
-{
- return mempool_init(pool, min_nr, mempool_alloc_slab,
- mempool_free_slab, (void *) kc);
-}
-
-static inline mempool_t *
-mempool_create_slab_pool(int min_nr, struct kmem_cache *kc)
-{
- return mempool_create(min_nr, mempool_alloc_slab, mempool_free_slab,
- (void *) kc);
-}
+#define mempool_init_slab_pool(_pool, _min_nr, _kc) \
+ mempool_init(_pool, (_min_nr), mempool_alloc_slab, mempool_free_slab, (void *)(_kc))
+#define mempool_create_slab_pool(_min_nr, _kc) \
+ mempool_create((_min_nr), mempool_alloc_slab, mempool_free_slab, (void *)(_kc))
/*
* a mempool_alloc_t and a mempool_free_t to kmalloc and kfree the
@@ -83,17 +90,12 @@ mempool_create_slab_pool(int min_nr, struct kmem_cache *kc)
void *mempool_kmalloc(gfp_t gfp_mask, void *pool_data);
void mempool_kfree(void *element, void *pool_data);
-static inline int mempool_init_kmalloc_pool(mempool_t *pool, int min_nr, size_t size)
-{
- return mempool_init(pool, min_nr, mempool_kmalloc,
- mempool_kfree, (void *) size);
-}
-
-static inline mempool_t *mempool_create_kmalloc_pool(int min_nr, size_t size)
-{
- return mempool_create(min_nr, mempool_kmalloc, mempool_kfree,
- (void *) size);
-}
+#define mempool_init_kmalloc_pool(_pool, _min_nr, _size) \
+ mempool_init(_pool, (_min_nr), mempool_kmalloc, mempool_kfree, \
+ (void *)(unsigned long)(_size))
+#define mempool_create_kmalloc_pool(_min_nr, _size) \
+ mempool_create((_min_nr), mempool_kmalloc, mempool_kfree, \
+ (void *)(unsigned long)(_size))
/*
* A mempool_alloc_t and mempool_free_t for a simple page allocator that
@@ -102,16 +104,11 @@ static inline mempool_t *mempool_create_kmalloc_pool(int min_nr, size_t size)
void *mempool_alloc_pages(gfp_t gfp_mask, void *pool_data);
void mempool_free_pages(void *element, void *pool_data);
-static inline int mempool_init_page_pool(mempool_t *pool, int min_nr, int order)
-{
- return mempool_init(pool, min_nr, mempool_alloc_pages,
- mempool_free_pages, (void *)(long)order);
-}
-
-static inline mempool_t *mempool_create_page_pool(int min_nr, int order)
-{
- return mempool_create(min_nr, mempool_alloc_pages, mempool_free_pages,
- (void *)(long)order);
-}
+#define mempool_init_page_pool(_pool, _min_nr, _order) \
+ mempool_init(_pool, (_min_nr), mempool_alloc_pages, \
+ mempool_free_pages, (void *)(long)(_order))
+#define mempool_create_page_pool(_min_nr, _order) \
+ mempool_create((_min_nr), mempool_alloc_pages, \
+ mempool_free_pages, (void *)(long)(_order))
#endif /* _LINUX_MEMPOOL_H */
diff --git a/mm/mempool.c b/mm/mempool.c
index dbbf0e9fb424..c47ff883cf36 100644
--- a/mm/mempool.c
+++ b/mm/mempool.c
@@ -240,17 +240,17 @@ EXPORT_SYMBOL(mempool_init_node);
*
* Return: %0 on success, negative error code otherwise.
*/
-int mempool_init(mempool_t *pool, int min_nr, mempool_alloc_t *alloc_fn,
- mempool_free_t *free_fn, void *pool_data)
+int mempool_init_noprof(mempool_t *pool, int min_nr, mempool_alloc_t *alloc_fn,
+ mempool_free_t *free_fn, void *pool_data)
{
return mempool_init_node(pool, min_nr, alloc_fn, free_fn,
pool_data, GFP_KERNEL, NUMA_NO_NODE);
}
-EXPORT_SYMBOL(mempool_init);
+EXPORT_SYMBOL(mempool_init_noprof);
/**
- * mempool_create - create a memory pool
+ * mempool_create_node - create a memory pool
* @min_nr: the minimum number of elements guaranteed to be
* allocated for this pool.
* @alloc_fn: user-defined element-allocation function.
@@ -265,17 +265,9 @@ EXPORT_SYMBOL(mempool_init);
*
* Return: pointer to the created memory pool object or %NULL on error.
*/
-mempool_t *mempool_create(int min_nr, mempool_alloc_t *alloc_fn,
- mempool_free_t *free_fn, void *pool_data)
-{
- return mempool_create_node(min_nr, alloc_fn, free_fn, pool_data,
- GFP_KERNEL, NUMA_NO_NODE);
-}
-EXPORT_SYMBOL(mempool_create);
-
-mempool_t *mempool_create_node(int min_nr, mempool_alloc_t *alloc_fn,
- mempool_free_t *free_fn, void *pool_data,
- gfp_t gfp_mask, int node_id)
+mempool_t *mempool_create_node_noprof(int min_nr, mempool_alloc_t *alloc_fn,
+ mempool_free_t *free_fn, void *pool_data,
+ gfp_t gfp_mask, int node_id)
{
mempool_t *pool;
@@ -291,7 +283,7 @@ mempool_t *mempool_create_node(int min_nr, mempool_alloc_t *alloc_fn,
return pool;
}
-EXPORT_SYMBOL(mempool_create_node);
+EXPORT_SYMBOL(mempool_create_node_noprof);
/**
* mempool_resize - resize an existing memory pool
@@ -374,7 +366,7 @@ int mempool_resize(mempool_t *pool, int new_min_nr)
EXPORT_SYMBOL(mempool_resize);
/**
- * mempool_alloc - allocate an element from a specific memory pool
+ * mempool_alloc_noprof - allocate an element from a specific memory pool
* @pool: pointer to the memory pool which was allocated via
* mempool_create().
* @gfp_mask: the usual allocation bitmask.
@@ -387,7 +379,7 @@ EXPORT_SYMBOL(mempool_resize);
*
* Return: pointer to the allocated element or %NULL on error.
*/
-void *mempool_alloc(mempool_t *pool, gfp_t gfp_mask)
+void *mempool_alloc_noprof(mempool_t *pool, gfp_t gfp_mask)
{
void *element;
unsigned long flags;
@@ -454,7 +446,7 @@ void *mempool_alloc(mempool_t *pool, gfp_t gfp_mask)
finish_wait(&pool->wait, &wait);
goto repeat_alloc;
}
-EXPORT_SYMBOL(mempool_alloc);
+EXPORT_SYMBOL(mempool_alloc_noprof);
/**
* mempool_alloc_preallocated - allocate an element from preallocated elements
@@ -562,7 +554,7 @@ void *mempool_alloc_slab(gfp_t gfp_mask, void *pool_data)
{
struct kmem_cache *mem = pool_data;
VM_BUG_ON(mem->ctor);
- return kmem_cache_alloc(mem, gfp_mask);
+ return kmem_cache_alloc_noprof(mem, gfp_mask);
}
EXPORT_SYMBOL(mempool_alloc_slab);
@@ -580,7 +572,7 @@ EXPORT_SYMBOL(mempool_free_slab);
void *mempool_kmalloc(gfp_t gfp_mask, void *pool_data)
{
size_t size = (size_t)pool_data;
- return kmalloc(size, gfp_mask);
+ return kmalloc_noprof(size, gfp_mask);
}
EXPORT_SYMBOL(mempool_kmalloc);
@@ -597,7 +589,7 @@ EXPORT_SYMBOL(mempool_kfree);
void *mempool_alloc_pages(gfp_t gfp_mask, void *pool_data)
{
int order = (int)(long)pool_data;
- return alloc_pages(gfp_mask, order);
+ return alloc_pages_noprof(gfp_mask, order);
}
EXPORT_SYMBOL(mempool_alloc_pages);
--
2.43.0.687.g38aa6559b0-goog
Powered by blists - more mailing lists