[NET]: Rate limiting for socket allocation failure messages.

This patch limits the warning messages when socket allocation failures
happen. It happens under memory pressure.

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 1 deletions

diff --git a/net/socket.c b/net/socket.c
index b4848ce0d6ac..6d261bf206fc 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -1178,7 +1178,8 @@ static int __sock_create(int family, int type, int protocol, struct socket **res
  */
 
         if (!(sock = sock_alloc())) {
-                printk(KERN_WARNING "socket: no more sockets\n");
+                if (net_ratelimit())
+                        printk(KERN_WARNING "socket: no more sockets\n");
                 err = -ENFILE;          /* Not exactly a match, but its the
                                            closest posix thing */
                 goto out;