)]}'
{
  "commit": "1ebf26a9b338534def47f307c6c8694b6dfc0a79",
  "tree": "26829a8cc727388c0da8eea6de38d7ba0eda2a47",
  "parents": [
    "bb1f17b0372de93758653ca3454bc0df18dc2e5c"
  ],
  "author": {
    "name": "Wu Fengguang",
    "email": "fengguang.wu@intel.com",
    "time": "Tue Jun 16 15:31:19 2009 -0700"
  },
  "committer": {
    "name": "Linus Torvalds",
    "email": "torvalds@linux-foundation.org",
    "time": "Tue Jun 16 19:47:28 2009 -0700"
  },
  "message": "readahead: make mmap_miss an unsigned int\n\nThis makes the performance impact of possible mmap_miss wrap around to be\ntemporary and tolerable: i.e.  MMAP_LOTSAMISS\u003d100 extra readarounds.\n\nOtherwise if ever mmap_miss wraps around to negative, it takes INT_MAX\ncache misses to bring it back to normal state.  During the time mmap\nreadaround will be _enabled_ for whatever wild random workload.  That\u0027s\nalmost permanent performance impact.\n\nSigned-off-by: Wu Fengguang \u003cfengguang.wu@intel.com\u003e\nCc: Ying Han \u003cyinghan@google.com\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": "ede84fa7da5d07dacaeafdaf104107a06a4aa7fa",
      "old_mode": 33188,
      "old_path": "include/linux/fs.h",
      "new_id": "8146e0264ef9107fb2f3747f084871c5eeddfa11",
      "new_mode": 33188,
      "new_path": "include/linux/fs.h"
    }
  ]
}