diff options
| -rw-r--r-- | net/ipv4/tcp_memcontrol.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/net/ipv4/tcp_memcontrol.c b/net/ipv4/tcp_memcontrol.c index d438fba31ba8..171d7b64f803 100644 --- a/net/ipv4/tcp_memcontrol.c +++ b/net/ipv4/tcp_memcontrol.c @@ -29,6 +29,12 @@ static struct cftype tcp_files[] = { .trigger = tcp_cgroup_reset, .read_u64 = tcp_cgroup_read, }, + { + .name = "kmem.tcp.max_usage_in_bytes", + .private = RES_MAX_USAGE, + .trigger = tcp_cgroup_reset, + .read_u64 = tcp_cgroup_read, + }, }; static inline struct tcp_memcontrol *tcp_from_cgproto(struct cg_proto *cg_proto) @@ -205,7 +211,8 @@ static u64 tcp_cgroup_read(struct cgroup *cont, struct cftype *cft) val = tcp_read_usage(memcg); break; case RES_FAILCNT: - val = tcp_read_stat(memcg, RES_FAILCNT, 0); + case RES_MAX_USAGE: + val = tcp_read_stat(memcg, cft->private, 0); break; default: BUG(); @@ -226,6 +233,9 @@ static int tcp_cgroup_reset(struct cgroup *cont, unsigned int event) tcp = tcp_from_cgproto(cg_proto); switch (event) { + case RES_MAX_USAGE: + res_counter_reset_max(&tcp->tcp_memory_allocated); + break; case RES_FAILCNT: res_counter_reset_failcnt(&tcp->tcp_memory_allocated); break; |