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tcp_memcontrol: Kill struct tcp_memcontrol

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Replace the pointers in struct cg_proto with actual data fields and kill
struct tcp_memcontrol as it is not fully redundant.

This removes a confusing, unnecessary layer of abstraction.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric W. Biederman
2013-10-19 16:26:19 -07:00
committed by David S. Miller
parent a4fe34bf90
commit 2e685cad57
4 changed files with 35 additions and 70 deletions
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28
include/net/sock.h
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@@ -1036,10 +1036,10 @@ enum cg_proto_flags {
struct cg_proto {
void (*enter_memory_pressure)(struct sock *sk);
struct res_counter *memory_allocated; /* Current allocated memory. */
struct percpu_counter *sockets_allocated; /* Current number of sockets. */
int *memory_pressure;
long *sysctl_mem;
struct res_counter memory_allocated; /* Current allocated memory. */
struct percpu_counter sockets_allocated; /* Current number of sockets. */
int memory_pressure;
long sysctl_mem[3];
unsigned long flags;
/*
* memcg field is used to find which memcg we belong directly
@@ -1135,9 +1135,9 @@ static inline bool sk_under_memory_pressure(const struct sock *sk)
return false;
if (mem_cgroup_sockets_enabled && sk->sk_cgrp)
return !!*sk->sk_cgrp->memory_pressure;
return !!sk->sk_cgrp->memory_pressure;
return !!*sk->sk_prot->memory_pressure;
return !!sk->sk_prot->memory_pressure;
}
static inline void sk_leave_memory_pressure(struct sock *sk)
@@ -1155,8 +1155,8 @@ static inline void sk_leave_memory_pressure(struct sock *sk)
struct proto *prot = sk->sk_prot;
for (; cg_proto; cg_proto = parent_cg_proto(prot, cg_proto))
if (*cg_proto->memory_pressure)
*cg_proto->memory_pressure = 0;
if (cg_proto->memory_pressure)
cg_proto->memory_pressure = 0;
}
}
@@ -1192,7 +1192,7 @@ static inline void memcg_memory_allocated_add(struct cg_proto *prot,
struct res_counter *fail;
int ret;
ret = res_counter_charge_nofail(prot->memory_allocated,
ret = res_counter_charge_nofail(&prot->memory_allocated,
amt << PAGE_SHIFT, &fail);
if (ret < 0)
*parent_status = OVER_LIMIT;
@@ -1201,13 +1201,13 @@ static inline void memcg_memory_allocated_add(struct cg_proto *prot,
static inline void memcg_memory_allocated_sub(struct cg_proto *prot,
unsigned long amt)
{
res_counter_uncharge(prot->memory_allocated, amt << PAGE_SHIFT);
res_counter_uncharge(&prot->memory_allocated, amt << PAGE_SHIFT);
}
static inline u64 memcg_memory_allocated_read(struct cg_proto *prot)
{
u64 ret;
ret = res_counter_read_u64(prot->memory_allocated, RES_USAGE);
ret = res_counter_read_u64(&prot->memory_allocated, RES_USAGE);
return ret >> PAGE_SHIFT;
}
@@ -1255,7 +1255,7 @@ static inline void sk_sockets_allocated_dec(struct sock *sk)
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(&cg_proto->sockets_allocated);
}
percpu_counter_dec(prot->sockets_allocated);
@@ -1269,7 +1269,7 @@ static inline void sk_sockets_allocated_inc(struct sock *sk)
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(&cg_proto->sockets_allocated);
}
percpu_counter_inc(prot->sockets_allocated);
@@ -1281,7 +1281,7 @@ 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(&sk->sk_cgrp->sockets_allocated);
return percpu_counter_read_positive(prot->sockets_allocated);
}