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authorJakub Kicinski <kuba@kernel.org>2022-11-29 13:04:52 -0800
committerJakub Kicinski <kuba@kernel.org>2022-11-29 13:04:52 -0800
commitf2bb566f5c977ff010baaa9e5e14d9a75b06e5f2 (patch)
tree6359cc9169bd06bfb8b757a534c82886df605b71 /net/mptcp
parent7a945ce0c19bbdf821d5f7ce1515e7fb8e444465 (diff)
parent01f856ae6d0ca5ad0505b79bf2d22d7ca439b2a1 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
tools/lib/bpf/ringbuf.c 927cbb478adf ("libbpf: Handle size overflow for ringbuf mmap") b486d19a0ab0 ("libbpf: checkpatch: Fixed code alignments in ringbuf.c") https://lore.kernel.org/all/20221121122707.44d1446a@canb.auug.org.au/ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/mptcp')
-rw-r--r--net/mptcp/protocol.c13
-rw-r--r--net/mptcp/subflow.c6
2 files changed, 9 insertions, 10 deletions
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c
index 3796d1bfef6b..3722a8580b61 100644
--- a/net/mptcp/protocol.c
+++ b/net/mptcp/protocol.c
@@ -2352,12 +2352,7 @@ static void __mptcp_close_ssk(struct sock *sk, struct sock *ssk,
goto out;
}
- /* if we are invoked by the msk cleanup code, the subflow is
- * already orphaned
- */
- if (ssk->sk_socket)
- sock_orphan(ssk);
-
+ sock_orphan(ssk);
subflow->disposable = 1;
/* if ssk hit tcp_done(), tcp_cleanup_ulp() cleared the related ops
@@ -2940,7 +2935,11 @@ cleanup:
if (ssk == msk->first)
subflow->fail_tout = 0;
- sock_orphan(ssk);
+ /* detach from the parent socket, but allow data_ready to
+ * push incoming data into the mptcp stack, to properly ack it
+ */
+ ssk->sk_socket = NULL;
+ ssk->sk_wq = NULL;
unlock_sock_fast(ssk, slow);
}
sock_orphan(sk);
diff --git a/net/mptcp/subflow.c b/net/mptcp/subflow.c
index 437a283ba6ea..f3c336872475 100644
--- a/net/mptcp/subflow.c
+++ b/net/mptcp/subflow.c
@@ -1747,16 +1747,16 @@ void mptcp_subflow_queue_clean(struct sock *listener_ssk)
for (msk = head; msk; msk = next) {
struct sock *sk = (struct sock *)msk;
- bool slow, do_cancel_work;
+ bool do_cancel_work;
sock_hold(sk);
- slow = lock_sock_fast_nested(sk);
+ lock_sock_nested(sk, SINGLE_DEPTH_NESTING);
next = msk->dl_next;
msk->first = NULL;
msk->dl_next = NULL;
do_cancel_work = __mptcp_close(sk, 0);
- unlock_sock_fast(sk, slow);
+ release_sock(sk);
if (do_cancel_work)
mptcp_cancel_work(sk);
sock_put(sk);