diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-04-23 13:24:45 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-04-23 13:24:45 +0200 |
| commit | 660a708098569a66a47d0abdad998e29e1259de6 (patch) | |
| tree | 513d7f3cda11cb65f91a6f55b72308accf079c8d /net/core/dev.c | |
| parent | f70f95b485d78838ad28dbec804b986d11ad7bb0 (diff) | |
| parent | ed30a4a51bb196781c8058073ea720133a65596f (diff) | |
Merge 6.9-rc5 into tty-next
We want the tty fixes in here as well, and it resolves a merge conflict
in:
drivers/tty/serial/serial_core.c
as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/core/dev.c')
| -rw-r--r-- | net/core/dev.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 984ff8b9d0e1..331848eca7d3 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -3775,6 +3775,10 @@ no_lock_out: return rc; } + if (unlikely(READ_ONCE(q->owner) == smp_processor_id())) { + kfree_skb_reason(skb, SKB_DROP_REASON_TC_RECLASSIFY_LOOP); + return NET_XMIT_DROP; + } /* * Heuristic to force contended enqueues to serialize on a * separate lock before trying to get qdisc main lock. @@ -3814,7 +3818,9 @@ no_lock_out: qdisc_run_end(q); rc = NET_XMIT_SUCCESS; } else { + WRITE_ONCE(q->owner, smp_processor_id()); rc = dev_qdisc_enqueue(skb, q, &to_free, txq); + WRITE_ONCE(q->owner, -1); if (qdisc_run_begin(q)) { if (unlikely(contended)) { spin_unlock(&q->busylock); |