)]}'
{
  "commit": "844e8d904a7c1446e3f040683b4a0645c3eb168f",
  "tree": "5e277539dab95d6325cec564a91e0e70acdce021",
  "parents": [
    "e5dcdd80a60627371f40797426273048630dc8ca"
  ],
  "author": {
    "name": "Jun\u0027ichi Nomura",
    "email": "j-nomura@ce.jp.nec.com",
    "time": "Fri Sep 09 16:23:42 2005 -0700"
  },
  "committer": {
    "name": "Linus Torvalds",
    "email": "torvalds@g5.osdl.org",
    "time": "Fri Sep 09 16:39:09 2005 -0700"
  },
  "message": "[PATCH] dm: fix rh_dec()/rh_inc() race in dm-raid1.c\n\nFix another bug in dm-raid1.c that the dirty region may stay in or be moved\nto clean list and freed while in use.\n\nIt happens as follows:\n\n   CPU0                                   CPU1\n   ------------------------------------------------------------------------------\n   rh_dec()\n     if (atomic_dec_and_test(pending))\n        \u003cthe region is still marked dirty\u003e\n                                          rh_inc()\n                                            if the region is clean\n                                               mark the region dirty\n                                               and remove from clean list\n        mark the region clean\n        and move to clean list\n                                                  atomic_inc(pending)\n\nAt this stage, the region is in clean list and will be mistakenly reclaimed\nby rh_update_states() later.\n\nSigned-off-by: Jun\u0027ichi Nomura \u003cj-nomura@ce.jp.nec.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "b08df8b9b2cad8994a8d5c739c3943f1548cc17d",
      "old_mode": 33188,
      "old_path": "drivers/md/dm-raid1.c",
      "new_id": "8632825137538bbb050eadf6cf0c13b101cdc05d",
      "new_mode": 33188,
      "new_path": "drivers/md/dm-raid1.c"
    }
  ]
}