These two helpers will be used in map specific files later.
Signed-off-by: Yafang Shao <laoar.shao@xxxxxxxxx>
---
include/linux/bpf.h | 21 +++++++++++++++++++++
kernel/bpf/syscall.c | 19 -------------------
2 files changed, 21 insertions(+), 19 deletions(-)
diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index fca274e..2f3f092 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -23,6 +23,7 @@
#include <linux/slab.h>
#include <linux/percpu-refcount.h>
#include <linux/bpfptr.h>
+#include <linux/memcontrol.h>
struct bpf_verifier_env;
struct bpf_verifier_log;
@@ -209,6 +210,26 @@ struct bpf_map {
} owner;
};
+#ifdef CONFIG_MEMCG_KMEM
+static inline void bpf_map_save_memcg(struct bpf_map *map)
+{
+ map->memcg = get_mem_cgroup_from_mm(current->mm);
+}
+
+static inline void bpf_map_release_memcg(struct bpf_map *map)
+{
+ mem_cgroup_put(map->memcg);
+}
+#else
+static inline void bpf_map_save_memcg(struct bpf_map *map)
+{
+}
+
+static inline void bpf_map_release_memcg(struct bpf_map *map)
+{
+}
+#endif
+
static inline bool map_value_has_spin_lock(const struct bpf_map *map)
{
return map->spin_lock_off >= 0;
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 85456f1..7b4cbe7 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -414,16 +414,6 @@ void bpf_map_free_id(struct bpf_map *map, bool do_idr_lock)
}
#ifdef CONFIG_MEMCG_KMEM
-static void bpf_map_save_memcg(struct bpf_map *map)
-{
- map->memcg = get_mem_cgroup_from_mm(current->mm);
-}
-
-static void bpf_map_release_memcg(struct bpf_map *map)
-{
- mem_cgroup_put(map->memcg);
-}
-
void *bpf_map_kmalloc_node(const struct bpf_map *map, size_t size, gfp_t flags,
int node)
{
@@ -461,15 +451,6 @@ void __percpu *bpf_map_alloc_percpu(const struct bpf_map *map, size_t size,
return ptr;
}
-
-#else
-static void bpf_map_save_memcg(struct bpf_map *map)
-{
-}
-
-static void bpf_map_release_memcg(struct bpf_map *map)
-{
-}
#endif
/* called from workqueue */
--
1.8.3.1
