)]}'
{
  "commit": "efed792d6738964f399a508ef9e831cd60fa4657",
  "tree": "b4b5e472bafb3d5d0d8ea26680e1d8cc87365c30",
  "parents": [
    "28b1bd1cbc33cae95a309691d814399a69cf3070"
  ],
  "author": {
    "name": "Peter Zijlstra",
    "email": "peterz@infradead.org",
    "time": "Wed Mar 04 12:32:55 2009 +0100"
  },
  "committer": {
    "name": "Ingo Molnar",
    "email": "mingo@elte.hu",
    "time": "Wed Mar 04 18:49:58 2009 +0100"
  },
  "message": "tracing: add lockdep tracepoints for lock acquire/release\n\nAugment the traces with lock names when lockdep is available:\n\n 1)               |  down_read_trylock() {\n 1)               |    _spin_lock_irqsave() {\n 1)               |      /* lock_acquire: \u0026sem-\u003ewait_lock */\n 1)   4.201 us    |    }\n 1)               |    _spin_unlock_irqrestore() {\n 1)               |      /* lock_release: \u0026sem-\u003ewait_lock */\n 1)   3.523 us    |    }\n 1)               |  /* lock_acquire: try read \u0026mm-\u003emmap_sem */\n 1) + 13.386 us   |  }\n 1)   1.635 us    |  find_vma();\n 1)               |  handle_mm_fault() {\n 1)               |    __do_fault() {\n 1)               |      filemap_fault() {\n 1)               |        find_lock_page() {\n 1)               |          find_get_page() {\n 1)               |            /* lock_acquire: read rcu_read_lock */\n 1)               |            /* lock_release: rcu_read_lock */\n 1)   5.697 us    |          }\n 1)   8.158 us    |        }\n 1) + 11.079 us   |      }\n 1)               |      _spin_lock() {\n 1)               |        /* lock_acquire: __pte_lockptr(page) */\n 1)   3.949 us    |      }\n 1)   1.460 us    |      page_add_file_rmap();\n 1)               |      _spin_unlock() {\n 1)               |        /* lock_release: __pte_lockptr(page) */\n 1)   3.115 us    |      }\n 1)               |      unlock_page() {\n 1)   1.421 us    |        page_waitqueue();\n 1)   1.220 us    |        __wake_up_bit();\n 1)   6.519 us    |      }\n 1) + 34.328 us   |    }\n 1) + 37.452 us   |  }\n 1)               |  up_read() {\n 1)               |  /* lock_release: \u0026mm-\u003emmap_sem */\n 1)               |    _spin_lock_irqsave() {\n 1)               |      /* lock_acquire: \u0026sem-\u003ewait_lock */\n 1)   3.865 us    |    }\n 1)               |    _spin_unlock_irqrestore() {\n 1)               |      /* lock_release: \u0026sem-\u003ewait_lock */\n 1)   8.562 us    |    }\n 1) + 17.370 us   |  }\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: \u003d?ISO-8859-1?Q?T\u003dF6r\u003dF6k?\u003d Edwin \u003cedwintorok@gmail.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c1236166375.5330.7209.camel@laptop\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n",
  "tree_diff": [
    {
      "type": "add",
      "old_id": "0000000000000000000000000000000000000000",
      "old_mode": 0,
      "old_path": "/dev/null",
      "new_id": "5ca67df87f2acbbfaf2ee213aad11f19139290ca",
      "new_mode": 33188,
      "new_path": "include/trace/lockdep.h"
    },
    {
      "type": "add",
      "old_id": "0000000000000000000000000000000000000000",
      "old_mode": 0,
      "old_path": "/dev/null",
      "new_id": "f713d74a82b4d3c237968a072a6a09d3ae406ef7",
      "new_mode": 33188,
      "new_path": "include/trace/lockdep_event_types.h"
    },
    {
      "type": "modify",
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      "old_mode": 33188,
      "old_path": "include/trace/trace_event_types.h",
      "new_id": "df56f5694be64273b1031c8309081a6044bb2900",
      "new_mode": 33188,
      "new_path": "include/trace/trace_event_types.h"
    },
    {
      "type": "modify",
      "old_id": "ea2ef2051762d1220e538b40f7eab6e5f7e7a344",
      "old_mode": 33188,
      "old_path": "include/trace/trace_events.h",
      "new_id": "fd13750ca4ba3e6b254c53763cdd29101956b755",
      "new_mode": 33188,
      "new_path": "include/trace/trace_events.h"
    },
    {
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      "old_id": "02014f7ccc865fb8b7bb092dfbbb7dcae1b4787f",
      "old_mode": 33188,
      "old_path": "kernel/lockdep.c",
      "new_id": "cb70c1db85d04537f9fd0a3748ead6b2c726ba24",
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      "new_path": "kernel/lockdep.c"
    },
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      "new_mode": 33188,
      "new_path": "kernel/trace/trace.c"
    },
    {
      "type": "modify",
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      "old_mode": 33188,
      "old_path": "kernel/trace/trace_events_stage_3.h",
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      "new_path": "kernel/trace/trace_events_stage_3.h"
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}