diff options
| author | Stefan Metzmacher <metze@samba.org> | 2022-10-27 00:25:59 +0100 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-10-28 20:21:25 -0700 |
| commit | 71b7786ea478f3c4611deff4d2b9676b0c17c56b (patch) | |
| tree | 1b1d048007aaa652eca8ccbae93a528c86c8e3ee /net/ipv4 | |
| parent | e276d62dcfdee6582486e8b8344dd869518e14be (diff) | |
| download | linux-stable-71b7786ea478f3c4611deff4d2b9676b0c17c56b.tar.gz linux-stable-71b7786ea478f3c4611deff4d2b9676b0c17c56b.tar.bz2 linux-stable-71b7786ea478f3c4611deff4d2b9676b0c17c56b.zip | |
net: also flag accepted sockets supporting msghdr originated zerocopy
Without this only the client initiated tcp sockets have SOCK_SUPPORT_ZC.
The listening socket on the server also has it, but the accepted
connections didn't, which meant IORING_OP_SEND[MSG]_ZC will always
fails with -EOPNOTSUPP.
Fixes: e993ffe3da4b ("net: flag sockets supporting msghdr originated zerocopy")
Cc: <stable@vger.kernel.org> # 6.0
CC: Jens Axboe <axboe@kernel.dk>
Link: https://lore.kernel.org/io-uring/20221024141503.22b4e251@kernel.org/T/#m38aa19b0b825758fb97860a38ad13122051f9dda
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/af_inet.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c index 3dd02396517d..4728087c42a5 100644 --- a/net/ipv4/af_inet.c +++ b/net/ipv4/af_inet.c @@ -754,6 +754,8 @@ int inet_accept(struct socket *sock, struct socket *newsock, int flags, (TCPF_ESTABLISHED | TCPF_SYN_RECV | TCPF_CLOSE_WAIT | TCPF_CLOSE))); + if (test_bit(SOCK_SUPPORT_ZC, &sock->flags)) + set_bit(SOCK_SUPPORT_ZC, &newsock->flags); sock_graft(sk2, newsock); newsock->state = SS_CONNECTED; |