)]}'
{
  "log": [
    {
      "commit": "31998ef19385c944600d9a981b96252f98204bee",
      "tree": "ab757b8d6e3d349cf42827354e594687dcf6c5c8",
      "parents": [
        "0447568fc51e0268e201f7086d2450cf986e0411"
      ],
      "author": {
        "name": "Mikulas Patocka",
        "email": "mpatocka@redhat.com",
        "time": "Wed Mar 28 18:41:26 2012 +0100"
      },
      "committer": {
        "name": "Alasdair G Kergon",
        "email": "agk@redhat.com",
        "time": "Wed Mar 28 18:41:26 2012 +0100"
      },
      "message": "dm: reject trailing characters in sccanf input\n\nDevice mapper uses sscanf to convert arguments to numbers. The problem is that\nthe way we use it ignores additional unmatched characters in the scanned string.\n\nFor example, this `if (sscanf(string, \"%d\", \u0026number) \u003d\u003d 1)\u0027 will match a number,\nbut also it will match number with some garbage appended, like \"123abc\".\n\nAs a result, device mapper accepts garbage after some numbers. For example\nthe command `dmsetup create vg1-new --table \"0 16384 linear 254:1bla 34816bla\"\u0027\nwill pass without an error.\n\nThis patch fixes all sscanf uses in device mapper. It appends \"%c\" with\na pointer to a dummy character variable to every sscanf statement.\n\nThe construct `if (sscanf(string, \"%d%c\", \u0026number, \u0026dummy) \u003d\u003d 1)\u0027 succeeds\nonly if string is a null-terminated number (optionally preceded by some\nwhitespace characters). If there is some character appended after the number,\nsscanf matches \"%c\", writes the character to the dummy variable and returns 2.\nWe check the return value for 1 and consequently reject numbers with some\ngarbage appended.\n\nSigned-off-by: Mikulas Patocka \u003cmpatocka@redhat.com\u003e\nAcked-by: Mike Snitzer \u003csnitzer@redhat.com\u003e\nSigned-off-by: Alasdair G Kergon \u003cagk@redhat.com\u003e\n"
    },
    {
      "commit": "1212268fd9816e3b8801e57b896fceaec71969ad",
      "tree": "d0172aa71a3454faf2feb0c34e28690a6d027758",
      "parents": [
        "0c535e0d6f463365c29623350dbd91642363c39b"
      ],
      "author": {
        "name": "Mike Snitzer",
        "email": "snitzer@redhat.com",
        "time": "Wed Mar 07 19:09:39 2012 +0000"
      },
      "committer": {
        "name": "Alasdair G Kergon",
        "email": "agk@redhat.com",
        "time": "Wed Mar 07 19:09:39 2012 +0000"
      },
      "message": "dm flakey: fix crash on read when corrupt_bio_byte not set\n\nThe following BUG is hit on the first read that is submitted to a dm\nflakey test device while the device is \"down\" if the corrupt_bio_byte\nfeature wasn\u0027t requested when the device\u0027s table was loaded.\n\nExample DM table that will hit this BUG:\n0 2097152 flakey 8:0 2048 0 30\n\nThis bug was introduced by commit a3998799fb4df0b0af8271a7d50c4269032397aa\n(dm flakey: add corrupt_bio_byte feature) in v3.1-rc1.\n\nBUG: unable to handle kernel paging request at ffff8801cfce3fff\nIP: [\u003cffffffffa008c233\u003e] corrupt_bio_data+0x6e/0xae [dm_flakey]\nPGD 1606063 PUD 0\nOops: 0002 [#1] SMP\n...\nCall Trace:\n \u003cIRQ\u003e\n [\u003cffffffffa008c2b5\u003e] flakey_end_io+0x42/0x48 [dm_flakey]\n [\u003cffffffffa00dca98\u003e] clone_endio+0x54/0xb6 [dm_mod]\n [\u003cffffffff81130587\u003e] bio_endio+0x2d/0x2f\n [\u003cffffffff811c819a\u003e] req_bio_endio+0x96/0x9f\n [\u003cffffffff811c94b9\u003e] blk_update_request+0x1dc/0x3a9\n [\u003cffffffff812f5ee2\u003e] ? rcu_read_unlock+0x21/0x23\n [\u003cffffffff811c96a6\u003e] blk_update_bidi_request+0x20/0x6e\n [\u003cffffffff811c9713\u003e] blk_end_bidi_request+0x1f/0x5d\n [\u003cffffffff811c978d\u003e] blk_end_request+0x10/0x12\n [\u003cffffffff8128f450\u003e] scsi_io_completion+0x1e5/0x4b1\n [\u003cffffffff812882a9\u003e] scsi_finish_command+0xec/0xf5\n [\u003cffffffff8128f830\u003e] scsi_softirq_done+0xff/0x108\n [\u003cffffffff811ce284\u003e] blk_done_softirq+0x84/0x98\n [\u003cffffffff81048d19\u003e] __do_softirq+0xe3/0x1d5\n [\u003cffffffff8138f83f\u003e] ? _raw_spin_lock+0x62/0x69\n [\u003cffffffff810997cf\u003e] ? handle_irq_event+0x4c/0x61\n [\u003cffffffff8139833c\u003e] call_softirq+0x1c/0x30\n [\u003cffffffff81003b37\u003e] do_softirq+0x4b/0xa3\n [\u003cffffffff81048a39\u003e] irq_exit+0x53/0xca\n [\u003cffffffff81398acd\u003e] do_IRQ+0x9d/0xb4\n [\u003cffffffff81390333\u003e] common_interrupt+0x73/0x73\n...\n\nSigned-off-by: Mike Snitzer \u003csnitzer@redhat.com\u003e\nCc: stable@vger.kernel.org # 3.1+\nSigned-off-by: Alasdair G Kergon \u003cagk@redhat.com\u003e\n"
    },
    {
      "commit": "ec8013beddd717d1740cfefb1a9b900deef85462",
      "tree": "7aa28de51cb2f375baf6fe943afd85e75ca7bcb9",
      "parents": [
        "0bfc96cb77224736dfa35c3c555d37b3646ef35e"
      ],
      "author": {
        "name": "Paolo Bonzini",
        "email": "pbonzini@redhat.com",
        "time": "Thu Jan 12 16:01:29 2012 +0100"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Sat Jan 14 15:07:24 2012 -0800"
      },
      "message": "dm: do not forward ioctls from logical volumes to the underlying device\n\nA logical volume can map to just part of underlying physical volume.\nIn this case, it must be treated like a partition.\n\nBased on a patch from Alasdair G Kergon.\n\nCc: Alasdair G Kergon \u003cagk@redhat.com\u003e\nCc: dm-devel@redhat.com\nSigned-off-by: Paolo Bonzini \u003cpbonzini@redhat.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "68e58a294fb26f692697179e3f3ecf88dd8cb97c",
      "tree": "4576ce77f692c4acf85883b5d18127c5806bdf64",
      "parents": [
        "d93dc5c4478c1fd5de85a3e8aece9aad7bbae044"
      ],
      "author": {
        "name": "Mike Snitzer",
        "email": "snitzer@redhat.com",
        "time": "Sun Sep 25 23:26:15 2011 +0100"
      },
      "committer": {
        "name": "Alasdair G Kergon",
        "email": "agk@redhat.com",
        "time": "Sun Sep 25 23:26:15 2011 +0100"
      },
      "message": "dm: flakey fix corrupt_bio_byte error path\n\nIf no arguments were provided to the corrupt_bio_byte feature an error\nshould be returned immediately.\n\nReported-by: Zdenek Kabelac \u003czkabelac@redhat.com\u003e\nSigned-off-by: Mike Snitzer \u003csnitzer@redhat.com\u003e\nSigned-off-by: Alasdair G Kergon \u003cagk@redhat.com\u003e\n"
    },
    {
      "commit": "a3998799fb4df0b0af8271a7d50c4269032397aa",
      "tree": "2a0dc0a082519afd70cc991da36f620bc21272fe",
      "parents": [
        "b26f5e3d7127487e934758c1fbe05d683b082cb0"
      ],
      "author": {
        "name": "Mike Snitzer",
        "email": "snitzer@redhat.com",
        "time": "Tue Aug 02 12:32:06 2011 +0100"
      },
      "committer": {
        "name": "Alasdair G Kergon",
        "email": "agk@redhat.com",
        "time": "Tue Aug 02 12:32:06 2011 +0100"
      },
      "message": "dm flakey: add corrupt_bio_byte feature\n\nAdd corrupt_bio_byte feature to simulate corruption by overwriting a byte at a\nspecified position with a specified value during intervals when the device is\n\"down\".\n\nSigned-off-by: Mike Snitzer \u003csnitzer@redhat.com\u003e\nSigned-off-by: Alasdair G Kergon \u003cagk@redhat.com\u003e\n"
    },
    {
      "commit": "b26f5e3d7127487e934758c1fbe05d683b082cb0",
      "tree": "8b120e0e45e3a50c1c5adada0eede0870d62457d",
      "parents": [
        "dfd068b01f02653c6650f1c0eda443b2655d1471"
      ],
      "author": {
        "name": "Mike Snitzer",
        "email": "snitzer@redhat.com",
        "time": "Tue Aug 02 12:32:05 2011 +0100"
      },
      "committer": {
        "name": "Alasdair G Kergon",
        "email": "agk@redhat.com",
        "time": "Tue Aug 02 12:32:05 2011 +0100"
      },
      "message": "dm flakey: add drop_writes\n\nAdd \u0027drop_writes\u0027 option to drop writes silently while the\ndevice is \u0027down\u0027.  Reads are not touched.\n\nSigned-off-by: Mike Snitzer \u003csnitzer@redhat.com\u003e\nSigned-off-by: Alasdair G Kergon \u003cagk@redhat.com\u003e\n"
    },
    {
      "commit": "dfd068b01f02653c6650f1c0eda443b2655d1471",
      "tree": "e61e92a4a1e6b4c0170a87453219cabaf66e312a",
      "parents": [
        "30e4171bfe3d1c49689803338005cc0071dddaff"
      ],
      "author": {
        "name": "Mike Snitzer",
        "email": "snitzer@redhat.com",
        "time": "Tue Aug 02 12:32:05 2011 +0100"
      },
      "committer": {
        "name": "Alasdair G Kergon",
        "email": "agk@redhat.com",
        "time": "Tue Aug 02 12:32:05 2011 +0100"
      },
      "message": "dm flakey: support feature args\n\nAdd the ability to specify arbitrary feature flags when creating a\nflakey target.  This code uses the same target argument helpers that\nthe multipath target does.\n\nAlso remove the superfluous \u0027dm-flakey\u0027 prefixes from the error messages,\nas they already contain the prefix \u0027flakey\u0027.\n\nSigned-off-by: Mike Snitzer \u003csnitzer@redhat.com\u003e\nSigned-off-by: Alasdair G Kergon \u003cagk@redhat.com\u003e\n"
    },
    {
      "commit": "30e4171bfe3d1c49689803338005cc0071dddaff",
      "tree": "8ba89dcca8774a94cbd5bb7685a9ea27570d772c",
      "parents": [
        "498f0103ea13123e007660def9072a0b7dd1c599"
      ],
      "author": {
        "name": "Mike Snitzer",
        "email": "snitzer@redhat.com",
        "time": "Tue Aug 02 12:32:05 2011 +0100"
      },
      "committer": {
        "name": "Alasdair G Kergon",
        "email": "agk@redhat.com",
        "time": "Tue Aug 02 12:32:05 2011 +0100"
      },
      "message": "dm flakey: use dm_target_offset and support discards\n\nUse dm_target_offset() and support discards.\n\nSigned-off-by: Mike Snitzer \u003csnitzer@redhat.com\u003e\nSigned-off-by: Alasdair G Kergon \u003cagk@redhat.com\u003e\n"
    },
    {
      "commit": "3407ef5262b55ca5d7139d2b555ef792fe531eec",
      "tree": "fb5e083851c636e515095bb3eb90325f4b175129",
      "parents": [
        "024d37e95ec4a7ccc256973ab2feab01f4fbdd2d"
      ],
      "author": {
        "name": "Josef Bacik",
        "email": "josef@redhat.com",
        "time": "Thu Mar 24 13:54:24 2011 +0000"
      },
      "committer": {
        "name": "Alasdair G Kergon",
        "email": "agk@redhat.com",
        "time": "Thu Mar 24 13:54:24 2011 +0000"
      },
      "message": "dm: add flakey target\n\nThis target is the same as the linear target except that it returns I/O\nerrors periodically.  It\u0027s been found useful in simulating failing\ndevices for testing purposes.\n\nI needed a dm target to do some failure testing on btrfs\u0027s raid code, and\nMike pointed me at this.\n\nSigned-off-by: Josef Bacik \u003cjosef@redhat.com\u003e\nSigned-off-by: Alasdair G Kergon \u003cagk@redhat.com\u003e\n"
    }
  ]
}