)]}'
{
  "commit": "92ca922f0a19145f2dcc99d84fe656fa55b52c2e",
  "tree": "3d7e616ce15d79d44c1c21f16958978a211fc738",
  "parents": [
    "c2cddf991974a00aa7b40a21e829bc034b8199b6"
  ],
  "author": {
    "name": "Hong zhi guo",
    "email": "honkiko@gmail.com",
    "time": "Tue Jul 31 16:41:35 2012 -0700"
  },
  "committer": {
    "name": "Linus Torvalds",
    "email": "torvalds@linux-foundation.org",
    "time": "Tue Jul 31 18:42:39 2012 -0700"
  },
  "message": "vmalloc: walk vmap_areas by sorted list instead of rb_next()\n\nThere\u0027s a walk by repeating rb_next to find a suitable hole.  Could be\nsimply replaced by walk on the sorted vmap_area_list.  More simpler and\nefficient.\n\nMutation of the list and tree only happens in pair within\n__insert_vmap_area and __free_vmap_area, under protection of\nvmap_area_lock.  The patch code is also under vmap_area_lock, so the list\nwalk is safe, and consistent with the tree walk.\n\nTested on SMP by repeating batch of vmalloc anf vfree for random sizes and\nrounds for hours.\n\nSigned-off-by: Hong Zhiguo \u003chonkiko@gmail.com\u003e\nCc: Nick Piggin \u003cnpiggin@kernel.dk\u003e\nCc: Johannes Weiner \u003channes@cmpxchg.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "e03f4c7307a5b2dc4d7535815c69a786b2124f5d",
      "old_mode": 33188,
      "old_path": "mm/vmalloc.c",
      "new_id": "7e25ee3ce6e5485649ba96f027b184357a2919f8",
      "new_mode": 33188,
      "new_path": "mm/vmalloc.c"
    }
  ]
}