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flow: Introduce flow_foreach_sidei() macro

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We have a handful of places where we use a loop to step through each side
of a flow or flows, and we're probably going to have mroe in future.
Introduce a macro to implement this loop for convenience.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
This commit is contained in:
David Gibson 2024-07-17 14:52:20 +10:00 • committed by Stefano Brivio
commit 5235c47c79
2 changed files with 9 additions and 3 deletions

6
tcp_splice.c
View file

@ -263,7 +263,7 @@ bool tcp_splice_flow_defer(struct tcp_splice_conn *conn)
if (!(conn->flags & CLOSING))
return false;
for (sidei = 0; sidei < SIDES; sidei++) {
flow_foreach_sidei(sidei) {
/* Flushing might need to block: don't recycle them. */
if (conn->pipe[sidei][0] >= 0) {
close(conn->pipe[sidei][0]);
@ -299,7 +299,7 @@ static int tcp_splice_connect_finish(const struct ctx *c,
unsigned sidei;
int i = 0;
for (sidei = 0; sidei < SIDES; sidei++) {
flow_foreach_sidei(sidei) {
for (; i < TCP_SPLICE_PIPE_POOL_SIZE; i++) {
if (splice_pipe_pool[i][0] >= 0) {
SWAP(conn->pipe[sidei][0],
@ -820,7 +820,7 @@ void tcp_splice_timer(const struct ctx *c, struct tcp_splice_conn *conn)
ASSERT(!(conn->flags & CLOSING));
for (sidei = 0; sidei < SIDES; sidei++) {
flow_foreach_sidei(sidei) {
uint8_t set = sidei == 0 ? RCVLOWAT_SET_0 : RCVLOWAT_SET_1;
uint8_t act = sidei == 0 ? RCVLOWAT_ACT_0 : RCVLOWAT_ACT_1;