)]}'
{
  "commit": "bd5349cfd2b9bbb10a3dbcd3fe5cbaabe0b2ab9e",
  "tree": "20a55c6592f0934d6dccebb7972d28d120b4badd",
  "parents": [
    "bea493a031fe3337f4fe5479e8e865513828ea76"
  ],
  "author": {
    "name": "Neil Brown",
    "email": "neilb@suse.de",
    "time": "Tue Oct 17 00:10:35 2006 -0700"
  },
  "committer": {
    "name": "Linus Torvalds",
    "email": "torvalds@g5.osdl.org",
    "time": "Tue Oct 17 08:18:48 2006 -0700"
  },
  "message": "[PATCH] Convert cpu hotplug notifiers to use raw_notifier instead of blocking_notifier\n\nThe use of blocking notifier by _cpu_up and _cpu_down in cpu.c has two\nproblem.\n\n1/ An interaction with the workqueue notifier causes lockdep to spit a\n   warning.\n\n2/ A notifier could conceivable be added or removed while _cpu_up or\n   _cpu_down are in process.  As each notifier is called twice (prepare\n   then commit/abort) this could be unhealthy.\n\nTo fix to we simply take cpu_add_remove_lock while adding or removing\nnotifiers to/from the list.\n\nThis makes the \u0027blocking\u0027 usage unnecessary as all accesses to cpu_chain\nare now protected by cpu_add_remove_lock.  So change \"blocking\" to \"raw\" in\nall relevant places.  This fixes 1.\n\nCredit: Andrew Morton\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: Michal Piotrowski \u003cmichal.k.k.piotrowski@gmail.com\u003e (reporter)\nSigned-off-by: Neil Brown \u003cneilb@suse.de\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": "32c96628463eb46bab59ff81928d44e573711170",
      "old_mode": 33188,
      "old_path": "kernel/cpu.c",
      "new_id": "27dd3ee47099dd49c26790adf40b42efa1b950a3",
      "new_mode": 33188,
      "new_path": "kernel/cpu.c"
    }
  ]
}