)]}'
{
  "commit": "23918b03060f6e572168fdde1798a905679d2e06",
  "tree": "4e95edb5030e461a1eb82e2f1fb9cb90a3b46013",
  "parents": [
    "0cb39aa0ac3a9dc64171b43a85d17e539d82f2d6"
  ],
  "author": {
    "name": "Trond Myklebust",
    "email": "Trond.Myklebust@netapp.com",
    "time": "Thu Nov 20 16:06:21 2008 -0500"
  },
  "committer": {
    "name": "Linus Torvalds",
    "email": "torvalds@linux-foundation.org",
    "time": "Thu Nov 20 13:17:40 2008 -0800"
  },
  "message": "SUNRPC: Fix a performance regression in the RPC authentication code\n\nFix a regression reported by Max Kellermann whereby kernel profiling\nshowed that his clients were spending 45% of their time in\nrpcauth_lookup_credcache.\n\nIt turns out that although his processes had identical uid/gid/groups,\ngeneric_match() was failing to detect this, because the task-\u003egroup_info\npointers were not shared. This again lead to the creation of a huge number\nof identical credentials at the RPC layer.\n\nThe regression is fixed by comparing the contents of task-\u003egroup_info\nif the actual pointers are not identical.\n\nSigned-off-by: Trond Myklebust \u003cTrond.Myklebust@netapp.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "744b79fdcb19dac256b1dea5b26dc6e87f208f07",
      "old_mode": 33188,
      "old_path": "net/sunrpc/auth_generic.c",
      "new_id": "4028502f052858b1d66af4b31c17d641c16fac0b",
      "new_mode": 33188,
      "new_path": "net/sunrpc/auth_generic.c"
    }
  ]
}