Replace the open-coded mem_cgroup_put() with a new helper
bpf_map_put_memcg(). That could make it more clear.
Signed-off-by: Yafang Shao <laoar.shao@xxxxxxxxx>
---
kernel/bpf/syscall.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index dab156f..70d5f70 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -441,6 +441,11 @@ static struct mem_cgroup *bpf_map_get_memcg(const struct bpf_map *map)
return root_mem_cgroup;
}
+static void bpf_map_put_memcg(struct mem_cgroup *memcg)
+{
+ mem_cgroup_put(memcg);
+}
+
void *bpf_map_kmalloc_node(const struct bpf_map *map, size_t size, gfp_t flags,
int node)
{
@@ -451,7 +456,7 @@ void *bpf_map_kmalloc_node(const struct bpf_map *map, size_t size, gfp_t flags,
old_memcg = set_active_memcg(memcg);
ptr = kmalloc_node(size, flags | __GFP_ACCOUNT, node);
set_active_memcg(old_memcg);
- mem_cgroup_put(memcg);
+ bpf_map_put_memcg(memcg);
return ptr;
}
@@ -465,7 +470,7 @@ void *bpf_map_kzalloc(const struct bpf_map *map, size_t size, gfp_t flags)
old_memcg = set_active_memcg(memcg);
ptr = kzalloc(size, flags | __GFP_ACCOUNT);
set_active_memcg(old_memcg);
- mem_cgroup_put(memcg);
+ bpf_map_put_memcg(memcg);
return ptr;
}
@@ -480,7 +485,7 @@ void __percpu *bpf_map_alloc_percpu(const struct bpf_map *map, size_t size,
old_memcg = set_active_memcg(memcg);
ptr = __alloc_percpu_gfp(size, align, flags | __GFP_ACCOUNT);
set_active_memcg(old_memcg);
- mem_cgroup_put(memcg);
+ bpf_map_put_memcg(memcg);
return ptr;
}
--
1.8.3.1
