diff options
| author | Jakub Kicinski <kuba@kernel.org> | 2023-06-08 11:34:28 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-06-08 11:35:14 -0700 |
| commit | 449f6bc17a51e68b06cfd742898e5ff3fe6e04d7 (patch) | |
| tree | ed59929e7d1fa057ac6998075986a4cdfb85eb5a /net/mptcp/pm.c | |
| parent | bfd019d10fdabf70f9b01264aea6d6c7595f9226 (diff) | |
| parent | 25041a4c02c7cf774d8b6ed60586fd64f1cdaa81 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR.
Conflicts:
net/sched/sch_taprio.c
d636fc5dd692 ("net: sched: add rcu annotations around qdisc->qdisc_sleeping")
dced11ef84fb ("net/sched: taprio: don't overwrite "sch" variable in taprio_dump_class_stats()")
net/ipv4/sysctl_net_ipv4.c
e209fee4118f ("net/ipv4: ping_group_range: allow GID from 2147483648 to 4294967294")
ccce324dabfe ("tcp: make the first N SYN RTO backoffs linear")
https://lore.kernel.org/all/20230605100816.08d41a7b@canb.auug.org.au/
No adjacent changes.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/mptcp/pm.c')
| -rw-r--r-- | net/mptcp/pm.c | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/net/mptcp/pm.c b/net/mptcp/pm.c index 7d03b5fd8200..92d540e527a2 100644 --- a/net/mptcp/pm.c +++ b/net/mptcp/pm.c @@ -89,8 +89,15 @@ bool mptcp_pm_allow_new_subflow(struct mptcp_sock *msk) unsigned int subflows_max; int ret = 0; - if (mptcp_pm_is_userspace(msk)) - return mptcp_userspace_pm_active(msk); + if (mptcp_pm_is_userspace(msk)) { + if (mptcp_userspace_pm_active(msk)) { + spin_lock_bh(&pm->lock); + pm->subflows++; + spin_unlock_bh(&pm->lock); + return true; + } + return false; + } subflows_max = mptcp_pm_get_subflows_max(msk); @@ -183,8 +190,16 @@ void mptcp_pm_subflow_check_next(struct mptcp_sock *msk, const struct sock *ssk, struct mptcp_pm_data *pm = &msk->pm; bool update_subflows; - update_subflows = (subflow->request_join || subflow->mp_join) && - mptcp_pm_is_kernel(msk); + update_subflows = subflow->request_join || subflow->mp_join; + if (mptcp_pm_is_userspace(msk)) { + if (update_subflows) { + spin_lock_bh(&pm->lock); + pm->subflows--; + spin_unlock_bh(&pm->lock); + } + return; + } + if (!READ_ONCE(pm->work_pending) && !update_subflows) return; |