)]}'
{
  "commit": "bcce3de1be61e424deef35d1e86e86a35c4b6e65",
  "tree": "cfdefb52bc37c61dfac160951a9beb86d5cd9ba0",
  "parents": [
    "c9959059161ddd7bf4670cf47367033d6b2f79c4"
  ],
  "author": {
    "name": "Tejun Heo",
    "email": "tj@kernel.org",
    "time": "Mon Aug 25 19:47:22 2008 +0900"
  },
  "committer": {
    "name": "Jens Axboe",
    "email": "jens.axboe@oracle.com",
    "time": "Thu Oct 09 08:56:06 2008 +0200"
  },
  "message": "block: implement extended dev numbers\n\nImplement extended device numbers.  A block driver can tell block\nlayer that it wants to use extended device numbers.  After the usual\nminor space is used up, block layer automatically allocates devt\u0027s\nfrom EXT_BLOCK_MAJOR.\n\nCurrently only one major number is allocated for this but as the\nallocation is strictly on-demand, ~1mil minor space under it should\nsuffice unless the system actually has more than ~1mil partitions and\nif that ever happens adding more majors to the extended devt area is\neasy.\n\nDue to internal implementation issues, the first partition can\u0027t be\nallocated on the extended area.  In other words, genhd-\u003eminors should\nat least be 1.  This limitation will be lifted by later changes.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "430626e440f041667d61e81ad38b2cd40d25b34d",
      "old_mode": 33188,
      "old_path": "block/genhd.c",
      "new_id": "7bbfed05cecb1a0eab2cab78c29c899e9b548c7c",
      "new_mode": 33188,
      "new_path": "block/genhd.c"
    },
    {
      "type": "modify",
      "old_id": "c442f0aadac32b53c3638c99475be8e7b67e0c91",
      "old_mode": 33188,
      "old_path": "fs/partitions/check.c",
      "new_id": "0d4b7f28f13fdae3b3cacd03dedefbffb9b7921f",
      "new_mode": 33188,
      "new_path": "fs/partitions/check.c"
    },
    {
      "type": "modify",
      "old_id": "ac8a901f2002bc96b43d479f1a91814bf73acd2d",
      "old_mode": 33188,
      "old_path": "include/linux/genhd.h",
      "new_id": "6fc5324240627247143d48468acb867bf6254938",
      "new_mode": 33188,
      "new_path": "include/linux/genhd.h"
    },
    {
      "type": "modify",
      "old_id": "53d5fafd85c30a61e381f7d3762fa6a3841aca6c",
      "old_mode": 33188,
      "old_path": "include/linux/major.h",
      "new_id": "88249452b935befbc53985e9eb6c997b557346d8",
      "new_mode": 33188,
      "new_path": "include/linux/major.h"
    }
  ]
}