)]}'
{
  "commit": "810ecfa765f8be20c8d9c468885b3403a2232d2f",
  "tree": "0c9173defed8de28cf43d972b8e36b48fbcc6f24",
  "parents": [
    "548bc8e1b38e48653a90f48f636f8d253504f8a2"
  ],
  "author": {
    "name": "Tejun Heo",
    "email": "tj@kernel.org",
    "time": "Wed Jan 09 08:05:13 2013 -0800"
  },
  "committer": {
    "name": "Tejun Heo",
    "email": "tj@kernel.org",
    "time": "Wed Jan 09 08:05:13 2013 -0800"
  },
  "message": "blkcg: make blkcg_print_blkgs() grab q locks instead of blkcg lock\n\nInstead of holding blkcg-\u003elock while walking -\u003eblkg_list and executing\nprfill(), RCU walk -\u003eblkg_list and hold the blkg\u0027s queue lock while\nexecuting prfill().  This makes prfill() implementations easier as\nstats are mostly protected by queue lock.\n\nThis will be used to implement hierarchical stats.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nAcked-by: Vivek Goyal \u003cvgoyal@redhat.com\u003e\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "f9797b244eb380c37e2072b079e1a242bbb6e445",
      "old_mode": 33188,
      "old_path": "block/blk-cgroup.c",
      "new_id": "87ea95d1f533ead81e8c25adcdabcf98ab1bd431",
      "new_mode": 33188,
      "new_path": "block/blk-cgroup.c"
    }
  ]
}