diff options
| author | David Howells <dhowells@redhat.com> | 2022-10-12 22:17:56 +0100 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2023-01-06 09:43:31 +0000 |
| commit | a343b174b4bdde851033996960bca5ad1394d04b (patch) | |
| tree | c5140a13e9560a008d99dbba80f71066f932aea2 /net/rxrpc/call_event.c | |
| parent | 30df927b936b2ef21eb07dce9c141c7897609643 (diff) | |
rxrpc: Only set/transmit aborts in the I/O thread
Only set the abort call completion state in the I/O thread and only
transmit ABORT packets from there. rxrpc_abort_call() can then be made to
actually send the packet.
Further, ABORT packets should only be sent if the call has been exposed to
the network (ie. at least one attempted DATA transmission has occurred for
it).
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Diffstat (limited to 'net/rxrpc/call_event.c')
| -rw-r--r-- | net/rxrpc/call_event.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/net/rxrpc/call_event.c b/net/rxrpc/call_event.c index b2cf448fb02c..b7efecf5ccfc 100644 --- a/net/rxrpc/call_event.c +++ b/net/rxrpc/call_event.c @@ -270,9 +270,11 @@ static void rxrpc_decant_prepared_tx(struct rxrpc_call *call) { struct rxrpc_txbuf *txb; - if (rxrpc_is_client_call(call) && - !test_bit(RXRPC_CALL_EXPOSED, &call->flags)) + if (!test_bit(RXRPC_CALL_EXPOSED, &call->flags)) { + if (list_empty(&call->tx_sendmsg)) + return; rxrpc_expose_client_call(call); + } while ((txb = list_first_entry_or_null(&call->tx_sendmsg, struct rxrpc_txbuf, call_link))) { @@ -336,6 +338,7 @@ void rxrpc_input_call_event(struct rxrpc_call *call, struct sk_buff *skb) unsigned long now, next, t; rxrpc_serial_t ackr_serial; bool resend = false, expired = false; + s32 abort_code; rxrpc_see_call(call, rxrpc_call_see_input); @@ -346,6 +349,14 @@ void rxrpc_input_call_event(struct rxrpc_call *call, struct sk_buff *skb) if (call->state == RXRPC_CALL_COMPLETE) goto out; + /* Handle abort request locklessly, vs rxrpc_propose_abort(). */ + abort_code = smp_load_acquire(&call->send_abort); + if (abort_code) { + rxrpc_abort_call(call->send_abort_why, call, 0, call->send_abort, + call->send_abort_err); + goto out; + } + if (skb && skb->mark == RXRPC_SKB_MARK_ERROR) goto out; @@ -433,7 +444,6 @@ void rxrpc_input_call_event(struct rxrpc_call *call, struct sk_buff *skb) } else { rxrpc_abort_call("EXP", call, 0, RX_CALL_TIMEOUT, -ETIME); } - rxrpc_send_abort_packet(call); goto out; } |