)]}'
{
  "log": [
    {
      "commit": "fe8bc91c4c30122b357d197117705cfd4fabaf28",
      "tree": "33e2895847d812204209444db4093af9a2c3623d",
      "parents": [
        "ea0174a7137c8ca9f130ca681f3a99c872da6778"
      ],
      "author": {
        "name": "Jan Kara",
        "email": "jack@suse.cz",
        "time": "Fri Oct 16 19:26:15 2009 +0200"
      },
      "committer": {
        "name": "Jan Kara",
        "email": "jack@suse.cz",
        "time": "Wed Nov 11 15:22:49 2009 +0100"
      },
      "message": "ext3: Wait for proper transaction commit on fsync\n\nWe cannot rely on buffer dirty bits during fsync because pdflush can come\nbefore fsync is called and clear dirty bits without forcing a transaction\ncommit. What we do is that we track which transaction has last changed\nthe inode and which transaction last changed allocation and force it to\ndisk on fsync.\n\nSigned-off-by: Jan Kara \u003cjack@suse.cz\u003e\nReviewed-by: Aneesh Kumar K.V \u003caneesh.kumar@linux.vnet.ibm.com\u003e\n"
    },
    {
      "commit": "56fcad29d4b3cbcbb2ed47a9d3ceca3f57175417",
      "tree": "4ad4816b11706e350760a3e206126105a7bf9a5c",
      "parents": [
        "4f003fd32bc54ec438b8691795279844df27ce38"
      ],
      "author": {
        "name": "Jan Kara",
        "email": "jack@suse.cz",
        "time": "Tue Sep 08 14:59:42 2009 +0200"
      },
      "committer": {
        "name": "Jan Kara",
        "email": "jack@suse.cz",
        "time": "Wed Sep 16 17:44:11 2009 +0200"
      },
      "message": "ext3: Flush disk caches on fsync when needed\n\nIn case we fsync() a file and inode is not dirty, we don\u0027t force a transaction\nto disk and hence don\u0027t flush disk caches. Thus file data could be just in disk\ncaches and not on persistent storage. Fix the problem by flushing disk caches\nif we didn\u0027t force a transaction commit.\n\nSigned-off-by: Jan Kara \u003cjack@suse.cz\u003e\n"
    },
    {
      "commit": "3d61f75eefedf75914ab4453c67aaa2ee64bcf93",
      "tree": "7a6c2c461a05f36694466dac40f386b11d15dac2",
      "parents": [
        "8b91582500ae750db22bd515379616e5e9ad06ab"
      ],
      "author": {
        "name": "Hisashi Hifumi",
        "email": "hifumi.hisashi@oss.ntt.co.jp",
        "time": "Mon Apr 28 02:16:05 2008 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Mon Apr 28 08:58:43 2008 -0700"
      },
      "message": "ext3: fdatasync should skip metadata writeout when overwriting\n\nCurrently fdatasync is identical to fsync in ext3.\n\nI think fdatasync should skip journal flush in data\u003dordered and\ndata\u003dwriteback mode when it overwrites to already-instantiated blocks on\nHDD.  When I_DIRTY_DATASYNC flag is not set, fdatasync should skip journal\nwriteout because this indicates only atime or/and mtime updates.\n\nFollowing patch is the same approach of ext2\u0027s fsync code(ext2_sync_file).\n\nI did a performance test using the sysbench.\n\n#sysbench --num-threads\u003d128 --max-requests\u003d50000 --test\u003dfileio --file-total-size\u003d128G\n--file-test-mode\u003drndwr --file-fsync-mode\u003dfdatasync run\n\nThe result on ext3 was:\n\n\t-2.6.24\n\tOperations performed:  0 Read, 50080 Write, 59600 Other \u003d 109680 Total\n\tRead 0b  Written 782.5Mb  Total transferred 782.5Mb  (12.116Mb/sec)\n\t  775.45 Requests/sec executed\n\n\tTest execution summary:\n\t    total time:                          64.5814s\n\t    total number of events:              50080\n\t    total time taken by event execution: 3713.9836\n\t    per-request statistics:\n\t         min:                            0.0000s\n\t         avg:                            0.0742s\n\t         max:                            0.9375s\n\t         approx.  95 percentile:         0.2901s\n\n\tThreads fairness:\n\t    events (avg/stddev):           391.2500/23.26\n\t    execution time (avg/stddev):   29.0155/1.99\n\n\t-2.6.24-patched\n\tOperations performed:  0 Read, 50009 Write, 61596 Other \u003d 111605 Total\n\tRead 0b  Written 781.39Mb  Total transferred 781.39Mb  (16.419Mb/sec)\n\t1050.83 Requests/sec executed\n\n\tTest execution summary:\n\t    total time:                          47.5900s\n\t    total number of events:              50009\n\t    total time taken by event execution: 2934.5768\n\t    per-request statistics:\n \t         min:                            0.0000s\n\t         avg:                            0.0587s\n \t         max:                            0.8938s\n\t         approx.  95 percentile:         0.1993s\n\n\tThreads fairness:\n\t    events (avg/stddev):           390.6953/22.64\n\t    execution time (avg/stddev):   22.9264/1.17\n\nFilesystem I/O throughput was improved.\n\nSigned-off-by :Hisashi Hifumi \u003chifumi.hisashi@oss.ntt.co.jp\u003e\nAcked-by: Jan Kara \u003cjack@suse.cz\u003e\nCc: \u003clinux-ext4@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "c80544dc0b87bb65038355e7aafdc30be16b26ab",
      "tree": "176349304bec88a9de16e650c9919462e0dd453c",
      "parents": [
        "0e9663ee452ffce0d429656ebbcfe69417a30e92"
      ],
      "author": {
        "name": "Stephen Hemminger",
        "email": "shemminger@linux-foundation.org",
        "time": "Thu Oct 18 03:07:05 2007 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Thu Oct 18 14:37:31 2007 -0700"
      },
      "message": "sparse pointer use of zero as null\n\nGet rid of sparse related warnings from places that use integer as NULL\npointer.\n\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: Stephen Hemminger \u003cshemminger@linux-foundation.org\u003e\nCc: Andi Kleen \u003cak@suse.de\u003e\nCc: Jeff Garzik \u003cjeff@garzik.org\u003e\nCc: Matt Mackall \u003cmpm@selenic.com\u003e\nCc: Ian Kent \u003craven@themaw.net\u003e\nCc: Arnd Bergmann \u003carnd@arndb.de\u003e\nCc: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nCc: Stephen Smalley \u003csds@tycho.nsa.gov\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "ae6ddcc5f24d6b06ae9231dc128904750a4155e0",
      "tree": "93c6e20b513f39b616af101dabe9b756f7300d0d",
      "parents": [
        "e7ab8d65055e9b9dfc131d0467cfc5a8368d7ee4"
      ],
      "author": {
        "name": "Mingming Cao",
        "email": "cmm@us.ibm.com",
        "time": "Wed Sep 27 01:49:27 2006 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Wed Sep 27 08:26:09 2006 -0700"
      },
      "message": "[PATCH] ext3 and jbd cleanup: remove whitespace\n\nRemove whitespace from ext3 and jbd, before we clone ext4.\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"
    }
  ]
}