)]}'
{
  "commit": "94b059520d6c0cea852dc9a3e9033c6f123df7c1",
  "tree": "591e57d7d41edf0469695a35c36cfeb4d2b265b3",
  "parents": [
    "7b6856a0296a8f187bb88ba31fa83a08abba7966"
  ],
  "author": {
    "name": "Eric Dumazet",
    "email": "eric.dumazet@gmail.com",
    "time": "Fri Oct 16 04:02:20 2009 +0000"
  },
  "committer": {
    "name": "David S. Miller",
    "email": "davem@davemloft.net",
    "time": "Tue Oct 20 01:02:06 2009 -0700"
  },
  "message": "af_packet: Avoid cache line dirtying\n\nWhile doing multiple captures, I found af_packet was dirtying cache line\ncontaining its prot_hook.\n\nThis slow down machines where several cpus are necessary to handle capture\ntraffic, as each prot_hook is traversed for each packet coming in or out\nthe host.\n\nThis patches moves \"struct packet_type prot_hook\" to the end of\npacket_sock, and uses a ____cacheline_aligned_in_smp to make sure\nthis remains shared by all cpus.\n\nSigned-off-by: Eric Dumazet \u003ceric.dumazet@gmail.com\u003e\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "bf3a2954cd4d2c9a7ba0ce6e89bd5aaa25301b60",
      "old_mode": 33188,
      "old_path": "net/packet/af_packet.c",
      "new_id": "dac775e0bc72a196f18570552409a25b9a0181af",
      "new_mode": 33188,
      "new_path": "net/packet/af_packet.c"
    }
  ]
}