)]}'
{
  "log": [
    {
      "commit": "21fe3471c3aaa5c489c5d3a4d705291eb7511248",
      "tree": "d1074604279a899f617d6653b42a31e01226f824",
      "parents": [
        "fb3cc4320e1fd87143683b540e459a2e20fdc9bb"
      ],
      "author": {
        "name": "Mingming Cao",
        "email": "cmm@us.ibm.com",
        "time": "Tue Jun 28 20:45:16 2005 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@ppc970.osdl.org",
        "time": "Tue Jun 28 21:20:35 2005 -0700"
      },
      "message": "[PATCH] ext3: reduce allocate-with-reservation lock latencies\n\nCurrently in ext3 block reservation code, the global filesystem reservation\ntree lock (rsv_block) is hold during the process of searching for a space\nto make a new reservation window, including while scaning the block bitmap\nto verify if the avalible window has a free block.  Holding the lock during\nbitmap scan is unnecessary and could possibly cause scalability issue and\nlatency issues.\n\nThis patch tries to address this by dropping the lock before scan the\nbitmap.  Before that we need to reserve the open window in case someone\nelse is targetting at the same window.  Question was should we reserve the\nwhole free reservable space or just the window size we need.  Reserve the\nwhole free reservable space will possibly force other threads which\nintended to do block allocation nearby move to another block group(cause\nbad layout).  In this patch, we just reserve the desired size before drop\nthe lock and scan the block bitmap.  This patch fixed a ext3 reservation\nlatency issue seen on a cvs check out test.  Patch is tested with many fsx,\ntiobench, dbench and untar a kernel test.\n\nSigned-Off-By: Mingming Cao \u003ccmm@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
      "tree": "0bba044c4ce775e45a88a51686b5d9f90697ea9d",
      "parents": [],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@ppc970.osdl.org",
        "time": "Sat Apr 16 15:20:36 2005 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@ppc970.osdl.org",
        "time": "Sat Apr 16 15:20:36 2005 -0700"
      },
      "message": "Linux-2.6.12-rc2\n\nInitial git repository build. I\u0027m not bothering with the full history,\neven though we have it. We can create a separate \"historical\" git\narchive of that later if we want to, and in the meantime it\u0027s about\n3.2GB when imported into git - space that would just make the early\ngit days unnecessarily complicated, when we don\u0027t have a lot of good\ninfrastructure for it.\n\nLet it rip!\n"
    }
  ]
}