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MINOR: quic: do not proceed to accept for closing conn

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Each quic_conn is inserted in an accept queue to allocate the upper
layers. This is done through a listener tasklet in
quic_sock_accept_conn().

This patch interrupts the accept process for a quic_conn in
closing/draining state. Indeed, this connection will soon be closed so
it's unnecessary to allocate a complete stack for it.

This patch will become necessary when thread migration is implemented.
Indeed, it won't be allowed to proceed to thread migration for a closing
quic_conn.

This should be backported up to 2.7 after a period of observation.
This commit is contained in:
Amaury Denoyelle 2023-04-17 09:31:16 +02:00
parent f16ec344d5
commit 987812b190
1 changed files with 1 additions and 1 deletions
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2
src/quic_sock.c
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@ -150,7 +150,7 @@ struct connection *quic_sock_accept_conn(struct listener *l, int *status)
struct li_per_thread *lthr = &l->per_thr[tid];
qc = MT_LIST_POP(&lthr->quic_accept.conns, struct quic_conn *, accept_list);
if (!qc)
if (!qc || qc->flags & (QUIC_FL_CONN_CLOSING|QUIC_FL_CONN_DRAINING))
goto done;
if (!new_quic_cli_conn(qc, l, &qc->peer_addr))