)]}'
{
  "commit": "ffe4ccd359d006eba559cb1a3c6113144b7fb38c",
  "tree": "00547b3df467260871b935d0fb3347f3c556c026",
  "parents": [
    "dfdf774656205515b2d6ad94fce63c7ccbe92d91"
  ],
  "author": {
    "name": "Eric Dumazet",
    "email": "edumazet@google.com",
    "time": "Wed Jan 07 10:41:59 2026 +0000"
  },
  "committer": {
    "name": "Paolo Abeni",
    "email": "pabeni@redhat.com",
    "time": "Tue Jan 13 10:12:11 2026 +0100"
  },
  "message": "net: add net.core.qdisc_max_burst\n\nIn blamed commit, I added a check against the temporary queue\nbuilt in __dev_xmit_skb(). Idea was to drop packets early,\nbefore any spinlock was acquired.\n\nif (unlikely(defer_count \u003e READ_ONCE(q-\u003elimit))) {\n\tkfree_skb_reason(skb, SKB_DROP_REASON_QDISC_DROP);\n\treturn NET_XMIT_DROP;\n}\n\nIt turned out that HTB Qdisc has a zero q-\u003elimit.\nHTB limits packets on a per-class basis.\nSome of our tests became flaky.\n\nAdd a new sysctl : net.core.qdisc_max_burst to control\nhow many packets can be stored in the temporary lockless queue.\n\nAlso add a new QDISC_BURST_DROP drop reason to better diagnose\nfuture issues.\n\nThanks Neal !\n\nFixes: 100dfa74cad9 (\"net: dev_queue_xmit() llist adoption\")\nReported-and-bisected-by: Neal Cardwell \u003cncardwell@google.com\u003e\nSigned-off-by: Eric Dumazet \u003cedumazet@google.com\u003e\nReviewed-by: Neal Cardwell \u003cncardwell@google.com\u003e\nLink: https://patch.msgid.link/20260107104159.3669285-1-edumazet@google.com\nSigned-off-by: Paolo Abeni \u003cpabeni@redhat.com\u003e\n\n",
  "tree_diff": [
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