From: David Howells <dhowells@redhat.com>
To: netdev@vger.kernel.org
Cc: dhowells@redhat.com, linux-afs@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: [PATCH net 1/7] rxrpc: Keep the ACK serial in a var in rxrpc_input_ack()
Date: Thu, 27 Aug 2020 16:03:40 +0100 [thread overview]
Message-ID: <159854062042.1382667.9932448813528186182.stgit@warthog.procyon.org.uk> (raw)
In-Reply-To: <159854061331.1382667.9693163318506702951.stgit@warthog.procyon.org.uk>
Keep the ACK serial number in a variable in rxrpc_input_ack() as it's used
frequently.
Signed-off-by: David Howells <dhowells@redhat.com>
---
net/rxrpc/input.c | 21 +++++++++++----------
1 file changed, 11 insertions(+), 10 deletions(-)
diff --git a/net/rxrpc/input.c b/net/rxrpc/input.c
index 767579328a06..a7699e56eac8 100644
--- a/net/rxrpc/input.c
+++ b/net/rxrpc/input.c
@@ -843,7 +843,7 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb)
struct rxrpc_ackinfo info;
u8 acks[RXRPC_MAXACKS];
} buf;
- rxrpc_serial_t acked_serial;
+ rxrpc_serial_t ack_serial, acked_serial;
rxrpc_seq_t first_soft_ack, hard_ack, prev_pkt;
int nr_acks, offset, ioffset;
@@ -856,6 +856,7 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb)
}
offset += sizeof(buf.ack);
+ ack_serial = sp->hdr.serial;
acked_serial = ntohl(buf.ack.serial);
first_soft_ack = ntohl(buf.ack.firstPacket);
prev_pkt = ntohl(buf.ack.previousPacket);
@@ -864,31 +865,31 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb)
summary.ack_reason = (buf.ack.reason < RXRPC_ACK__INVALID ?
buf.ack.reason : RXRPC_ACK__INVALID);
- trace_rxrpc_rx_ack(call, sp->hdr.serial, acked_serial,
+ trace_rxrpc_rx_ack(call, ack_serial, acked_serial,
first_soft_ack, prev_pkt,
summary.ack_reason, nr_acks);
if (buf.ack.reason == RXRPC_ACK_PING_RESPONSE)
rxrpc_input_ping_response(call, skb->tstamp, acked_serial,
- sp->hdr.serial);
+ ack_serial);
if (buf.ack.reason == RXRPC_ACK_REQUESTED)
rxrpc_input_requested_ack(call, skb->tstamp, acked_serial,
- sp->hdr.serial);
+ ack_serial);
if (buf.ack.reason == RXRPC_ACK_PING) {
- _proto("Rx ACK %%%u PING Request", sp->hdr.serial);
+ _proto("Rx ACK %%%u PING Request", ack_serial);
rxrpc_propose_ACK(call, RXRPC_ACK_PING_RESPONSE,
- sp->hdr.serial, true, true,
+ ack_serial, true, true,
rxrpc_propose_ack_respond_to_ping);
} else if (sp->hdr.flags & RXRPC_REQUEST_ACK) {
rxrpc_propose_ACK(call, RXRPC_ACK_REQUESTED,
- sp->hdr.serial, true, true,
+ ack_serial, true, true,
rxrpc_propose_ack_respond_to_ack);
}
/* Discard any out-of-order or duplicate ACKs (outside lock). */
if (!rxrpc_is_ack_valid(call, first_soft_ack, prev_pkt)) {
- trace_rxrpc_rx_discard_ack(call->debug_id, sp->hdr.serial,
+ trace_rxrpc_rx_discard_ack(call->debug_id, ack_serial,
first_soft_ack, call->ackr_first_seq,
prev_pkt, call->ackr_prev_seq);
return;
@@ -904,7 +905,7 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb)
/* Discard any out-of-order or duplicate ACKs (inside lock). */
if (!rxrpc_is_ack_valid(call, first_soft_ack, prev_pkt)) {
- trace_rxrpc_rx_discard_ack(call->debug_id, sp->hdr.serial,
+ trace_rxrpc_rx_discard_ack(call->debug_id, ack_serial,
first_soft_ack, call->ackr_first_seq,
prev_pkt, call->ackr_prev_seq);
goto out;
@@ -964,7 +965,7 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb)
RXRPC_TX_ANNO_LAST &&
summary.nr_acks == call->tx_top - hard_ack &&
rxrpc_is_client_call(call))
- rxrpc_propose_ACK(call, RXRPC_ACK_PING, sp->hdr.serial,
+ rxrpc_propose_ACK(call, RXRPC_ACK_PING, ack_serial,
false, true,
rxrpc_propose_ack_ping_for_lost_reply);
next prev parent reply other threads:[~2020-08-27 15:07 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-27 15:03 [PATCH net 0/7] rxrpc, afs: Fix probing issues David Howells
2020-08-27 15:03 ` David Howells [this message]
2020-08-27 15:03 ` [PATCH net 2/7] rxrpc: Fix loss of RTT samples due to interposed ACK David Howells
2020-08-27 15:03 ` [PATCH net 3/7] rxrpc: Make rxrpc_kernel_get_srtt() indicate validity David Howells
2020-08-27 15:04 ` [PATCH net 4/7] afs: Remove afs_vlserver->probe.have_result David Howells
2020-08-27 15:04 ` [PATCH net 5/7] afs: Expose information from afs_vlserver through /proc for debugging David Howells
2020-08-27 15:04 ` [PATCH net 6/7] afs: Don't use VL probe running state to make decisions outside probe code David Howells
2020-08-27 15:04 ` [PATCH net 7/7] afs: Fix error handling in VL server rotation David Howells
2020-08-27 19:56 ` [PATCH net 0/7] rxrpc, afs: Fix probing issues David Miller
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