)]}'
{
  "commit": "b0efe213f84f7fd5ccfe07053e3d9fb827b7c188",
  "tree": "652a2d089e6c964b963409c1bf4186d4cdc67daa",
  "parents": [
    "266e0e219888420a1a7cafc82e82891cf7b5a979"
  ],
  "author": {
    "name": "Frederic Weisbecker",
    "email": "fweisbec@gmail.com",
    "time": "Sat Aug 08 02:16:23 2009 +0200"
  },
  "committer": {
    "name": "Ingo Molnar",
    "email": "mingo@elte.hu",
    "time": "Sun Aug 09 12:54:41 2009 +0200"
  },
  "message": "perf tools: callchain: Fix spurious \u0027perf report\u0027 warnings: ignore empty callchains\n\nWhen the callchain tree comes to insert an empty backtrace, it\nraises a spurious warning about the fact we are inserting an\nempty. This is spurious because the radix tree assumes it did\nsomething wrong to reach this state. But it didn\u0027t, we just met\nan empty callchain that has to be ignored.\n\nThis happens occasionally with certain types of call-chain\nrecordings. If it happens it\u0027s a big nuisance as perf report\noutput starts with thousands of warning lines.\n\nReported-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nLKML-Reference: \u003c1249690585-9145-2-git-send-email-fweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "98c5627f327bff6eceab7f77207ca3a2a9ac4bfc",
      "old_mode": 33188,
      "old_path": "tools/perf/util/callchain.c",
      "new_id": "a8e67aa9ef49159157ae0a250b4d0d09ca424de7",
      "new_mode": 33188,
      "new_path": "tools/perf/util/callchain.c"
    }
  ]
}