)]}'
{
  "commit": "7ee78232501ea9de2b6c8f10d32c9a0fee541357",
  "tree": "2041a36a13bdd8b096dfbf52b63a87739ea97d6b",
  "parents": [
    "fd3e42fcc888a773572282575d2fdbf5cfd6216e"
  ],
  "author": {
    "name": "Hugh Dickins",
    "email": "hugh@veritas.com",
    "time": "Sat Oct 29 18:16:08 2005 -0700"
  },
  "committer": {
    "name": "Linus Torvalds",
    "email": "torvalds@g5.osdl.org",
    "time": "Sat Oct 29 21:40:38 2005 -0700"
  },
  "message": "[PATCH] mm: dup_mmap down new mmap_sem\n\nOne anomaly remains from when Andrea rationalized the responsibilities of\nmmap_sem and page_table_lock: in dup_mmap we add vmas to the child holding its\npage_table_lock, but not the mmap_sem which normally guards the vma list and\nrbtree.  Which could be an issue for unuse_mm: though since it just walks down\nthe list (today with page_table_lock, tomorrow not), it\u0027s probably okay.  Will\nneed a memory barrier?  Oh, keep it simple, Nick and I agreed, no harm in\ntaking child\u0027s mmap_sem here.\n\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "0e7fe4a8a8df149a54c534932f61011b5184afc2",
      "old_mode": 33188,
      "old_path": "kernel/fork.c",
      "new_id": "2a587b3224e3ccd0b0539b98bbde26609dbc3c46",
      "new_mode": 33188,
      "new_path": "kernel/fork.c"
    }
  ]
}