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authorPavel Emelyanov <xemul@openvz.org>2008-07-16 20:28:10 -0700
committerDavid S. Miller <davem@davemloft.net>2008-07-16 20:28:10 -0700
commit5c52ba170f8167511bdb65b981f4582100c40675 (patch)
tree1dab120003eb696dfb4ca18c40861274a317739d
parentcf1100a7a4f2573f50f9a923b53373977328e3c8 (diff)
downloadop-kernel-dev-5c52ba170f8167511bdb65b981f4582100c40675.zip
op-kernel-dev-5c52ba170f8167511bdb65b981f4582100c40675.tar.gz
sock: add net to prot->enter_memory_pressure callback
The tcp_enter_memory_pressure calls NET_INC_STATS, but doesn't have where to get the net from. I decided to add a sk argument, not the net itself, only to factor all the required sock_net(sk) calls inside the enter_memory_pressure callback itself. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--include/net/sock.h4
-rw-r--r--include/net/tcp.h2
-rw-r--r--net/core/sock.c2
-rw-r--r--net/decnet/af_decnet.c2
-rw-r--r--net/ipv4/tcp.c4
-rw-r--r--net/sctp/socket.c2
6 files changed, 8 insertions, 8 deletions
diff --git a/include/net/sock.h b/include/net/sock.h
index 3f4897a..06c5259 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -565,7 +565,7 @@ struct proto {
#endif
/* Memory pressure */
- void (*enter_memory_pressure)(void);
+ void (*enter_memory_pressure)(struct sock *sk);
atomic_t *memory_allocated; /* Current allocated memory. */
atomic_t *sockets_allocated; /* Current number of sockets. */
/*
@@ -1210,7 +1210,7 @@ static inline struct page *sk_stream_alloc_page(struct sock *sk)
page = alloc_pages(sk->sk_allocation, 0);
if (!page) {
- sk->sk_prot->enter_memory_pressure();
+ sk->sk_prot->enter_memory_pressure(sk);
sk_stream_moderate_sndbuf(sk);
}
return page;
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 4d78818..c25cb52 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -975,7 +975,7 @@ static inline void tcp_openreq_init(struct request_sock *req,
ireq->rmt_port = tcp_hdr(skb)->source;
}
-extern void tcp_enter_memory_pressure(void);
+extern void tcp_enter_memory_pressure(struct sock *sk);
static inline int keepalive_intvl_when(const struct tcp_sock *tp)
{
diff --git a/net/core/sock.c b/net/core/sock.c
index 2c0ba52..10a64d5 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -1442,7 +1442,7 @@ int __sk_mem_schedule(struct sock *sk, int size, int kind)
/* Under pressure. */
if (allocated > prot->sysctl_mem[1])
if (prot->enter_memory_pressure)
- prot->enter_memory_pressure();
+ prot->enter_memory_pressure(sk);
/* Over hard limit. */
if (allocated > prot->sysctl_mem[2])
diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c
index 931bdf9..61b7df5 100644
--- a/net/decnet/af_decnet.c
+++ b/net/decnet/af_decnet.c
@@ -451,7 +451,7 @@ static void dn_destruct(struct sock *sk)
static int dn_memory_pressure;
-static void dn_enter_memory_pressure(void)
+static void dn_enter_memory_pressure(struct sock *sk)
{
if (!dn_memory_pressure) {
dn_memory_pressure = 1;
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 525dcf5..bc8559a 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -316,7 +316,7 @@ int tcp_memory_pressure __read_mostly;
EXPORT_SYMBOL(tcp_memory_pressure);
-void tcp_enter_memory_pressure(void)
+void tcp_enter_memory_pressure(struct sock *sk)
{
if (!tcp_memory_pressure) {
NET_INC_STATS(LINUX_MIB_TCPMEMORYPRESSURES);
@@ -649,7 +649,7 @@ struct sk_buff *sk_stream_alloc_skb(struct sock *sk, int size, gfp_t gfp)
}
__kfree_skb(skb);
} else {
- sk->sk_prot->enter_memory_pressure();
+ sk->sk_prot->enter_memory_pressure(sk);
sk_stream_moderate_sndbuf(sk);
}
return NULL;
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index df5572c..6aba01b 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -116,7 +116,7 @@ static int sctp_memory_pressure;
static atomic_t sctp_memory_allocated;
static atomic_t sctp_sockets_allocated;
-static void sctp_enter_memory_pressure(void)
+static void sctp_enter_memory_pressure(struct sock *sk)
{
sctp_memory_pressure = 1;
}
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