)]}'
{
  "commit": "acb32ba3dee66d58704caeeb8c6ff95f60efdc66",
  "tree": "b5c1d6d5575a7b75c7c816e0809690f58401715c",
  "parents": [
    "e56c57d0d3fdbbdf583d3af96bfb803b8dfa713e"
  ],
  "author": {
    "name": "Eric Dumazet",
    "email": "eric.dumazet@gmail.com",
    "time": "Tue Nov 08 13:04:43 2011 +0000"
  },
  "committer": {
    "name": "David S. Miller",
    "email": "davem@davemloft.net",
    "time": "Wed Nov 09 16:04:20 2011 -0500"
  },
  "message": "ipv4: reduce percpu needs for icmpmsg mibs\n\nReading /proc/net/snmp on a machine with a lot of cpus is very expensive\n(can be ~88000 us).\n\nThis is because ICMPMSG MIB uses 4096 bytes per cpu, and folding values\nfor all possible cpus can read 16 Mbytes of memory.\n\nICMP messages are not considered as fast path on a typical server, and\neventually few cpus handle them anyway. We can afford an atomic\noperation instead of using percpu data.\n\nThis saves 4096 bytes per cpu and per network namespace.\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": "f0698b955b73c7ab41051fdf6508f4ab827932c0",
      "old_mode": 33188,
      "old_path": "include/net/icmp.h",
      "new_id": "75d615649071e39688b7f12a0e8a9c4066b8b31d",
      "new_mode": 33188,
      "new_path": "include/net/icmp.h"
    },
    {
      "type": "modify",
      "old_id": "0b44112e2366e535a8d6ab7a8fcc726f4aad8de6",
      "old_mode": 33188,
      "old_path": "include/net/netns/mib.h",
      "new_id": "f360135cb69ffb1375789eb59c137faa11b058ad",
      "new_mode": 33188,
      "new_path": "include/net/netns/mib.h"
    },
    {
      "type": "modify",
      "old_id": "8f0f9ac0307ffc3ead58ce031f62d8ec8b2d1f7e",
      "old_mode": 33188,
      "old_path": "include/net/snmp.h",
      "new_id": "0feafa68da01eb72988e88b96d55688a66ca4283",
      "new_mode": 33188,
      "new_path": "include/net/snmp.h"
    },
    {
      "type": "modify",
      "old_id": "1b5096a9875aae06db3fa9857800881dcc305d31",
      "old_mode": 33188,
      "old_path": "net/ipv4/af_inet.c",
      "new_id": "b2bbcd0ebd19c1f9d293545b31653b97b7bb4af1",
      "new_mode": 33188,
      "new_path": "net/ipv4/af_inet.c"
    },
    {
      "type": "modify",
      "old_id": "466ea8bb7a4d916e41c838389c7dcaf2b7f01b4a",
      "old_mode": 33188,
      "old_path": "net/ipv4/proc.c",
      "new_id": "961eed4f510a26e78d71dcf41fa265a414249dd0",
      "new_mode": 33188,
      "new_path": "net/ipv4/proc.c"
    }
  ]
}