)]}'
{
  "commit": "d179e84ba5da1d0024087d1759a2938817a00f3f",
  "tree": "169c9cc4030a793df1bc29613eff85ee3acef9a9",
  "parents": [
    "7454f4ba40b419eb999a3c61a99da662bf1a2bb8"
  ],
  "author": {
    "name": "Andrea Arcangeli",
    "email": "aarcange@redhat.com",
    "time": "Wed Jun 15 15:08:51 2011 -0700"
  },
  "committer": {
    "name": "Linus Torvalds",
    "email": "torvalds@linux-foundation.org",
    "time": "Wed Jun 15 20:04:02 2011 -0700"
  },
  "message": "mm: vmscan: do not use page_count without a page pin\n\nIt is unsafe to run page_count during the physical pfn scan because\ncompound_head could trip on a dangling pointer when reading\npage-\u003efirst_page if the compound page is being freed by another CPU.\n\n[mgorman@suse.de: split out patch]\nSigned-off-by: Andrea Arcangeli \u003caarcange@redhat.com\u003e\nSigned-off-by: Mel Gorman \u003cmgorman@suse.de\u003e\nReviewed-by: Michal Hocko \u003cmhocko@suse.cz\u003e\nReviewed-by: Minchan Kim \u003cminchan.kim@gmail.com\u003e\n\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": "dbe6ea321df42cb2fe430c22793a1df9d77200fe",
      "old_mode": 33188,
      "old_path": "mm/vmscan.c",
      "new_id": "8ff834e19c2460d33844e43154b058974a6c9849",
      "new_mode": 33188,
      "new_path": "mm/vmscan.c"
    }
  ]
}