)]}'
{
  "commit": "f38b082081bf69a06fffb8b32a175999e2320c5b",
  "tree": "08a26857c77b11a97871b3e1e06ec588033f7cf3",
  "parents": [
    "10a2825514a988225ac2e336c7a9502c4ca57c39"
  ],
  "author": {
    "name": "Paul Mackerras",
    "email": "paulus@samba.org",
    "time": "Tue Jun 02 21:05:16 2009 +1000"
  },
  "committer": {
    "name": "Ingo Molnar",
    "email": "mingo@elte.hu",
    "time": "Tue Jun 02 13:10:54 2009 +0200"
  },
  "message": "perf_counter: Initialize per-cpu context earlier on cpu up\n\nThis arranges for perf_counter\u0027s notifier for cpu hotplug\noperations to be called earlier than the migration notifier in\nsched.c by increasing its priority to 20, compared to the 10\nfor the migration notifier.  The reason for doing this is that\na subsequent commit to convert the cpu migration counter to use\nthe generic swcounter infrastructure will add a call into the\nperf_counter subsystem when tasks get migrated.  Therefore the\nperf_counter subsystem needs a chance to initialize its per-cpu\ndata for the new cpu before it can get called from the\nmigration code.\n\nThis also adds a comment to the migration notifier noting that\nits priority needs to be lower than that of the perf_counter\nnotifier.\n\nSigned-off-by: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c18981.1900.792795.836858@cargo.ozlabs.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "df319c48c52b9d9bc3572d68462cf9716fd2e884",
      "old_mode": 33188,
      "old_path": "kernel/perf_counter.c",
      "new_id": "8d2653f137e9099ed7941780d6bd52dd39629eaf",
      "new_mode": 33188,
      "new_path": "kernel/perf_counter.c"
    },
    {
      "type": "modify",
      "old_id": "ad079f07c9c8c35529a2e3a63fb694169b4047a7",
      "old_mode": 33188,
      "old_path": "kernel/sched.c",
      "new_id": "3226cc132e9fcae69d01ea9634f552424d717373",
      "new_mode": 33188,
      "new_path": "kernel/sched.c"
    }
  ]
}