)]}'
{
  "commit": "0341509fdfc9519f7de6aabc5dd23217cef72b73",
  "tree": "84415f35129013b9d8fb3f5f0ef266437a02f09c",
  "parents": [
    "dcf097b247affd8b88ad410a92298590c5600f44"
  ],
  "author": {
    "name": "Li Zefan",
    "email": "lizf@cn.fujitsu.com",
    "time": "Fri May 07 08:57:00 2010 +0200"
  },
  "committer": {
    "name": "Jens Axboe",
    "email": "jens.axboe@oracle.com",
    "time": "Fri May 07 08:57:00 2010 +0200"
  },
  "message": "blk-cgroup: Fix an RCU warning in blkiocg_create()\n\nwith CONFIG_PROVE_RCU\u003dy, a warning can be triggered:\n\n  # mount -t cgroup -o blkio xxx /mnt\n  # mkdir /mnt/subgroup\n\n...\nkernel/cgroup.c:4442 invoked rcu_dereference_check() without protection!\n...\n\nTo fix this, we avoid caling css_depth() here, which is a bit simpler\nthan the original code.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Vivek Goyal \u003cvgoyal@redhat.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "5fe03def34b24c396f299aa57bda4b1cc5a3df2a",
      "old_mode": 33188,
      "old_path": "block/blk-cgroup.c",
      "new_id": "2cc682b860ead9d15350620c595bfbb30f4a533d",
      "new_mode": 33188,
      "new_path": "block/blk-cgroup.c"
    }
  ]
}