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tcp: Unify tcp_defer_handler and tcp_splice_defer_handler()
These two functions each step through non-spliced and spliced connections respectively and clean up entries for closed connections. To avoid scanning the connection table twice, we merge these into a single function which scans the unified table and performs the appropriate sort of cleanup action on each one. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
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parent
ee8f8e9564
commit
0eef48c4be
4 changed files with 13 additions and 33 deletions
20
tcp.c
20
tcp.c
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@ -1527,21 +1527,23 @@ void tcp_defer_handler(struct ctx *c)
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{
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int max_conns = c->tcp.conn_count / 100 * TCP_CONN_PRESSURE;
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int max_files = c->nofile / 100 * TCP_FILE_PRESSURE;
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struct tcp_tap_conn *conn;
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union tcp_conn *conn;
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tcp_l2_flags_buf_flush(c);
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tcp_l2_data_buf_flush(c);
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tcp_splice_defer_handler(c);
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if (c->tcp.conn_count < MIN(max_files, max_conns))
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if ((c->tcp.conn_count < MIN(max_files, max_conns)) &&
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(c->tcp.splice_conn_count < MIN(max_files / 6, max_conns)))
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return;
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for (conn = CONN(c->tcp.conn_count - 1); conn >= CONN(0); conn--) {
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if (conn->c.spliced)
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continue;
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if (conn->events == CLOSED)
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tcp_conn_destroy(c, conn);
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for (conn = tc + c->tcp.conn_count - 1; conn >= tc; conn--) {
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if (conn->c.spliced) {
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if (conn->splice.flags & CLOSING)
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tcp_splice_destroy(c, &conn->splice);
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} else {
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if (conn->tap.events == CLOSED)
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tcp_conn_destroy(c, &conn->tap);
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}
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}
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}
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