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rxrpc: Display call expect-receive-by timeout in proc 

Display in /proc/net/rxrpc/calls the timeout by which a call next expects
to receive a packet.

This makes it easier to debug timeout issues.

Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells 2018-07-23 17:18:36 +01:00
parent f597a5792a
commit 887763bbc3
1 changed files with 11 additions and 3 deletions
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14
net/rxrpc/proc.c
View File

@ -63,6 +63,7 @@ static int rxrpc_call_seq_show(struct seq_file *seq, void *v)
struct rxrpc_peer *peer; struct rxrpc_peer *peer;
struct rxrpc_call *call; struct rxrpc_call *call;
struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq)); struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq));
unsigned long timeout = 0, nowj;
rxrpc_seq_t tx_hard_ack, rx_hard_ack; rxrpc_seq_t tx_hard_ack, rx_hard_ack;
char lbuff[50], rbuff[50]; char lbuff[50], rbuff[50];
@ -71,7 +72,7 @@ static int rxrpc_call_seq_show(struct seq_file *seq, void *v)
"Proto Local " "Proto Local "
" Remote " " Remote "
" SvID ConnID CallID End Use State Abort " " SvID ConnID CallID End Use State Abort "
" UserID\n"); " UserID TxSeq TW RxSeq RW RxTimo\n");
return 0; return 0;
} }
@ -94,11 +95,17 @@ static int rxrpc_call_seq_show(struct seq_file *seq, void *v)
else else
strcpy(rbuff, "no_connection"); strcpy(rbuff, "no_connection");
if (call->state != RXRPC_CALL_SERVER_PREALLOC) {
timeout = READ_ONCE(call->expect_rx_by);
nowj = jiffies;
timeout -= jiffies;
}
tx_hard_ack = READ_ONCE(call->tx_hard_ack); tx_hard_ack = READ_ONCE(call->tx_hard_ack);
rx_hard_ack = READ_ONCE(call->rx_hard_ack); rx_hard_ack = READ_ONCE(call->rx_hard_ack);
seq_printf(seq, seq_printf(seq,
"UDP %-47.47s %-47.47s %4x %08x %08x %s %3u" "UDP %-47.47s %-47.47s %4x %08x %08x %s %3u"
" %-8.8s %08x %lx %08x %02x %08x %02x\n", " %-8.8s %08x %lx %08x %02x %08x %02x %06lx\n",
lbuff, lbuff,
rbuff, rbuff,
call->service_id, call->service_id,
@ -110,7 +117,8 @@ static int rxrpc_call_seq_show(struct seq_file *seq, void *v)
call->abort_code, call->abort_code,
call->user_call_ID, call->user_call_ID,
tx_hard_ack, READ_ONCE(call->tx_top) - tx_hard_ack, tx_hard_ack, READ_ONCE(call->tx_top) - tx_hard_ack,
rx_hard_ack, READ_ONCE(call->rx_top) - rx_hard_ack); rx_hard_ack, READ_ONCE(call->rx_top) - rx_hard_ack,
timeout);
return 0; return 0;
} }