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af_rxrpc: Add sysctls for configuring RxRPC parameters

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Add sysctls for configuring RxRPC protocol handling, specifically controls on
delays before ack generation, the delay before resending a packet, the maximum
lifetime of a call and the expiration times of calls, connections and
transports that haven't been recently used.

More info added in Documentation/networking/rxrpc.txt.

Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells
2014-02-07 18:58:44 +00:00
parent 6c9a2d3202
commit 5873c0834f
12 changed files with 273 additions and 27 deletions
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9
net/rxrpc/af_rxrpc.c
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@@ -838,6 +838,12 @@ static int __init af_rxrpc_init(void)
goto error_key_type_s;
}
ret = rxrpc_sysctl_init();
if (ret < 0) {
printk(KERN_CRIT "RxRPC: Cannot register sysctls\n");
goto error_sysctls;
}
#ifdef CONFIG_PROC_FS
proc_create("rxrpc_calls", 0, init_net.proc_net, &rxrpc_call_seq_fops);
proc_create("rxrpc_conns", 0, init_net.proc_net,
@@ -845,6 +851,8 @@ static int __init af_rxrpc_init(void)
#endif
return 0;
error_sysctls:
unregister_key_type(&key_type_rxrpc_s);
error_key_type_s:
unregister_key_type(&key_type_rxrpc);
error_key_type:
@@ -865,6 +873,7 @@ error_call_jar:
static void __exit af_rxrpc_exit(void)
{
_enter("");
rxrpc_sysctl_exit();
unregister_key_type(&key_type_rxrpc_s);
unregister_key_type(&key_type_rxrpc);
sock_unregister(PF_RXRPC);