)]}'
{
  "commit": "5e84ea3a9c662dc2d7a48703a4468fad954a3b7f",
  "tree": "3fa0fb26a7c8a970213584104cc2498ef46d60a3",
  "parents": [
    "4345caba340f051e10847924fc078ae18ed6695c"
  ],
  "author": {
    "name": "Jens Axboe",
    "email": "jaxboe@fusionio.com",
    "time": "Mon Mar 21 10:14:27 2011 +0100"
  },
  "committer": {
    "name": "Jens Axboe",
    "email": "jaxboe@fusionio.com",
    "time": "Mon Mar 21 10:14:27 2011 +0100"
  },
  "message": "block: attempt to merge with existing requests on plug flush\n\nOne of the disadvantages of on-stack plugging is that we potentially\nlose out on merging since all pending IO isn\u0027t always visible to\neverybody. When we flush the on-stack plugs, right now we don\u0027t do\nany checks to see if potential merge candidates could be utilized.\n\nCorrect this by adding a new insert variant, ELEVATOR_INSERT_SORT_MERGE.\nIt works just ELEVATOR_INSERT_SORT, but first checks whether we can\nmerge with an existing request before doing the insertion (if we fail\nmerging).\n\nThis fixes a regression with multiple processes issuing IO that\ncan be merged.\n\nThanks to Shaohua Li \u003cshaohua.li@intel.com\u003e for testing and fixing\nan accounting bug.\n\nSigned-off-by: Jens Axboe \u003cjaxboe@fusionio.com\u003e\n",
  "tree_diff": [
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