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-rw-r--r--include/linux/memcontrol.h1
-rw-r--r--include/net/sock.h39
-rw-r--r--net/ipv4/tcp_memcontrol.c3
3 files changed, 3 insertions, 40 deletions
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 85c437b0cbc0..15acc04ebdd3 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -87,7 +87,6 @@ enum mem_cgroup_events_target {
struct cg_proto {
struct page_counter memory_allocated; /* Current allocated memory. */
- struct percpu_counter sockets_allocated; /* Current number of sockets. */
int memory_pressure;
bool active;
long sysctl_mem[3];
diff --git a/include/net/sock.h b/include/net/sock.h
index d3b035c7362b..1f15937ec208 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1098,19 +1098,9 @@ static inline void sk_refcnt_debug_release(const struct sock *sk)
#if defined(CONFIG_MEMCG_KMEM) && defined(CONFIG_NET)
extern struct static_key memcg_socket_limit_enabled;
-static inline struct cg_proto *parent_cg_proto(struct proto *proto,
- struct cg_proto *cg_proto)
-{
- return proto->proto_cgroup(parent_mem_cgroup(cg_proto->memcg));
-}
#define mem_cgroup_sockets_enabled static_key_false(&memcg_socket_limit_enabled)
#else
#define mem_cgroup_sockets_enabled 0
-static inline struct cg_proto *parent_cg_proto(struct proto *proto,
- struct cg_proto *cg_proto)
-{
- return NULL;
-}
#endif
static inline bool sk_stream_memory_free(const struct sock *sk)
@@ -1236,41 +1226,18 @@ sk_memory_allocated_sub(struct sock *sk, int amt)
static inline void sk_sockets_allocated_dec(struct sock *sk)
{
- struct proto *prot = sk->sk_prot;
-
- if (mem_cgroup_sockets_enabled && sk->sk_cgrp) {
- struct cg_proto *cg_proto = sk->sk_cgrp;
-
- for (; cg_proto; cg_proto = parent_cg_proto(prot, cg_proto))
- percpu_counter_dec(&cg_proto->sockets_allocated);
- }
-
- percpu_counter_dec(prot->sockets_allocated);
+ percpu_counter_dec(sk->sk_prot->sockets_allocated);
}
static inline void sk_sockets_allocated_inc(struct sock *sk)
{
- struct proto *prot = sk->sk_prot;
-
- if (mem_cgroup_sockets_enabled && sk->sk_cgrp) {
- struct cg_proto *cg_proto = sk->sk_cgrp;
-
- for (; cg_proto; cg_proto = parent_cg_proto(prot, cg_proto))
- percpu_counter_inc(&cg_proto->sockets_allocated);
- }
-
- percpu_counter_inc(prot->sockets_allocated);
+ percpu_counter_inc(sk->sk_prot->sockets_allocated);
}
static inline int
sk_sockets_allocated_read_positive(struct sock *sk)
{
- struct proto *prot = sk->sk_prot;
-
- if (mem_cgroup_sockets_enabled && sk->sk_cgrp)
- return percpu_counter_read_positive(&sk->sk_cgrp->sockets_allocated);
-
- return percpu_counter_read_positive(prot->sockets_allocated);
+ return percpu_counter_read_positive(sk->sk_prot->sockets_allocated);
}
static inline int
diff --git a/net/ipv4/tcp_memcontrol.c b/net/ipv4/tcp_memcontrol.c
index d07579ada001..6759e0d6bba1 100644
--- a/net/ipv4/tcp_memcontrol.c
+++ b/net/ipv4/tcp_memcontrol.c
@@ -32,7 +32,6 @@ int tcp_init_cgroup(struct mem_cgroup *memcg, struct cgroup_subsys *ss)
counter_parent = &parent_cg->memory_allocated;
page_counter_init(&cg_proto->memory_allocated, counter_parent);
- percpu_counter_init(&cg_proto->sockets_allocated, 0, GFP_KERNEL);
return 0;
}
@@ -46,8 +45,6 @@ void tcp_destroy_cgroup(struct mem_cgroup *memcg)
if (!cg_proto)
return;
- percpu_counter_destroy(&cg_proto->sockets_allocated);
-
if (cg_proto->active)
static_key_slow_dec(&memcg_socket_limit_enabled);