)]}'
{
  "log": [
    {
      "commit": "4671a1322052425afa38fcb7980d2fd2bb0fc99b",
      "tree": "d31e221682a11e7af2771b426773dff249ed115c",
      "parents": [
        "73e9ffdd0cc8159f876d5e29ecf2d9c1bfca544f"
      ],
      "author": {
        "name": "Richard Kennedy",
        "email": "richard@rsk.demon.co.uk",
        "time": "Mon Mar 01 10:57:22 2010 +0100"
      },
      "committer": {
        "name": "Jens Axboe",
        "email": "jens.axboe@oracle.com",
        "time": "Mon Mar 01 10:57:22 2010 +0100"
      },
      "message": "block: don\u0027t access jiffies when initialising io_context\n\nAs the comment says the initial value of last_waited is never used, so\nthere is no need to initialise it with the current jiffies. Jiffies is\nhot enough without accessing it for no reason.\n\nSigned-off-by: Richard Kennedy \u003crichard@rsk.demon.co.uk\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n"
    },
    {
      "commit": "ce289321b7dc1eb108e3df0dec872b7429ef49f7",
      "tree": "9153bc19d805d796b7a9ddac04d2d060a9d3261e",
      "parents": [
        "b27d7f16d3c6c27345d4280a739809c1c2c4c0b5"
      ],
      "author": {
        "name": "Kirill Afonshin",
        "email": "kirill_nnov@mail.ru",
        "time": "Fri Jan 08 22:09:59 2010 +0300"
      },
      "committer": {
        "name": "Jens Axboe",
        "email": "jens.axboe@oracle.com",
        "time": "Mon Jan 11 14:29:20 2010 +0100"
      },
      "message": "block: removed unused as_io_context\n\nIt isn\u0027t used anymore, since AS was deleted.\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n"
    },
    {
      "commit": "b69f2292063d2caf37ca9aec7d63ded203701bf3",
      "tree": "be4acb81ea4ab7014047808ec2b2c908e8334f55",
      "parents": [
        "61cc74fbb87af6aa551a06a370590c9bc07e29d9"
      ],
      "author": {
        "name": "Louis Rilling",
        "email": "louis.rilling@kerlabs.com",
        "time": "Fri Dec 04 14:52:42 2009 +0100"
      },
      "committer": {
        "name": "Jens Axboe",
        "email": "jens.axboe@oracle.com",
        "time": "Fri Dec 04 16:36:18 2009 +0100"
      },
      "message": "block: Fix io_context leak after failure of clone with CLONE_IO\n\nWith CLONE_IO, parent\u0027s io_context-\u003enr_tasks is incremented, but never\ndecremented whenever copy_process() fails afterwards, which prevents\nexit_io_context() from calling IO schedulers exit functions.\n\nGive a task_struct to exit_io_context(), and call exit_io_context() instead of\nput_io_context() in copy_process() cleanup path.\n\nSigned-off-by: Louis Rilling \u003clouis.rilling@kerlabs.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n"
    },
    {
      "commit": "61cc74fbb87af6aa551a06a370590c9bc07e29d9",
      "tree": "351116a74bba13b016c730f777eca86b3b197e5e",
      "parents": [
        "3c764b7a654668dd04905841d6024f7b6aa843a5"
      ],
      "author": {
        "name": "Louis Rilling",
        "email": "louis.rilling@kerlabs.com",
        "time": "Fri Dec 04 14:52:41 2009 +0100"
      },
      "committer": {
        "name": "Jens Axboe",
        "email": "jens.axboe@oracle.com",
        "time": "Fri Dec 04 16:36:18 2009 +0100"
      },
      "message": "block: Fix io_context leak after clone with CLONE_IO\n\nWith CLONE_IO, copy_io() increments both ioc-\u003erefcount and ioc-\u003enr_tasks.\nHowever exit_io_context() only decrements ioc-\u003erefcount if ioc-\u003enr_tasks\nreaches 0.\n\nAlways call put_io_context() in exit_io_context().\n\nSigned-off-by: Louis Rilling \u003clouis.rilling@kerlabs.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n"
    },
    {
      "commit": "d9c7d394a8ebacb60097b192939ae9f15235225e",
      "tree": "4fbf9c7677acb03c23d05faba1a4b0bcfb6702b4",
      "parents": [
        "1d589bb16b825b3a7b4edd34d997f1f1f953033d"
      ],
      "author": {
        "name": "Nikanth Karthikesan",
        "email": "knikanth@novell.com",
        "time": "Wed Jun 10 12:57:06 2009 -0700"
      },
      "committer": {
        "name": "Jens Axboe",
        "email": "jens.axboe@oracle.com",
        "time": "Wed Jun 10 23:07:15 2009 +0200"
      },
      "message": "block: prevent possible io_context-\u003erefcount overflow\n\nCurrently io_context has an atomic_t(32-bit) as refcount.  In the case of\ncfq, for each device against whcih a task does I/O, a reference to the\nio_context would be taken.  And when there are multiple process sharing\nio_contexts(CLONE_IO) would also have a reference to the same io_context.\n\nTheoretically the possible maximum number of processes sharing the same\nio_context + the number of disks/cfq_data referring to the same io_context\ncan overflow the 32-bit counter on a very high-end machine.\n\nEven though it is an improbable case, let us make it atomic_long_t.\n\nSigned-off-by: Nikanth Karthikesan \u003cknikanth@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n"
    },
    {
      "commit": "07416d29bcf608257f1e5280642dcbe0021518a3",
      "tree": "6b88b2b043cac10b34234320c68e06848c00127c",
      "parents": [
        "aa94b5371f6f898558d9fa5690cc6e4bf917a572"
      ],
      "author": {
        "name": "Jens Axboe",
        "email": "jens.axboe@oracle.com",
        "time": "Wed May 07 09:17:12 2008 +0200"
      },
      "committer": {
        "name": "Jens Axboe",
        "email": "jens.axboe@oracle.com",
        "time": "Wed May 07 09:28:57 2008 +0200"
      },
      "message": "cfq-iosched: fix RCU race in the cfq io_context destructor handling\n\nput_io_context() drops the RCU read lock before calling into cfq_dtor(),\nhowever we need to hold off freeing there before grabbing and\ndereferencing the first object on the list.\n\nSo extend the rcu_read_lock() scope to cover the calling of cfq_dtor(),\nand optimize cfq_free_io_context() to use a new variant for\ncall_for_each_cic() that assumes the RCU read lock is already held.\n\nHit in the wild by Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n"
    },
    {
      "commit": "ffc4e7595734cf768fa60cea8a4d545dfef8231a",
      "tree": "9b95aca67ea7c9e87254da501f73cca64504051d",
      "parents": [
        "84e9e03c55c2456799ab19f1d577e72f721fdd39"
      ],
      "author": {
        "name": "Jens Axboe",
        "email": "jens.axboe@oracle.com",
        "time": "Tue Feb 19 10:02:29 2008 +0100"
      },
      "committer": {
        "name": "Jens Axboe",
        "email": "jens.axboe@oracle.com",
        "time": "Tue Feb 19 10:04:00 2008 +0100"
      },
      "message": "cfq-iosched: add hlist for browsing parallel to the radix tree\n\nIt\u0027s cumbersome to browse a radix tree from start to finish, especially\nsince we modify keys when a process exits. So add a hlist for the single\npurpose of browsing over all known cfq_io_contexts, used for exit,\nio prio change, etc.\n\nThis fixes http://bugzilla.kernel.org/show_bug.cgi?id\u003d9948\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n"
    },
    {
      "commit": "13341598263011e079386b22ea35e482f97714c0",
      "tree": "8a4caf93f9fed9e3b318304759028201a477f733",
      "parents": [
        "5ece6c52ea52f9e94298e950a837ccff415c7687"
      ],
      "author": {
        "name": "Adrian Bunk",
        "email": "bunk@kernel.org",
        "time": "Mon Feb 18 13:45:53 2008 +0100"
      },
      "committer": {
        "name": "Jens Axboe",
        "email": "jens.axboe@oracle.com",
        "time": "Tue Feb 19 10:04:00 2008 +0100"
      },
      "message": "make blk_ioc_init() static\n\nblk_ioc_init() can become static.\n\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nSigned-off-by: Jens Axboe \u003caxboe@carl.home.kernel.dk\u003e\n"
    },
    {
      "commit": "3bc217ffe6774e7971d6a7ce6350ce806ebab044",
      "tree": "b1ccad14a0c23f12248092feb867d2e311db59f0",
      "parents": [
        "8bdd3f8a6993fef2f364aca6e1a59559405773a2"
      ],
      "author": {
        "name": "Jens Axboe",
        "email": "jens.axboe@oracle.com",
        "time": "Fri Feb 01 11:34:49 2008 +0100"
      },
      "committer": {
        "name": "Jens Axboe",
        "email": "jens.axboe@oracle.com",
        "time": "Fri Feb 01 11:34:49 2008 +0100"
      },
      "message": "block: kill swap_io_context()\n\nIt blindly copies everything in the io_context, including the lock.\nThat doesn\u0027t work so well for either lock ordering or lockdep.\n\nThere seems zero point in swapping io contexts on a request to request\nmerge, so the best point of action is to just remove it.\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n"
    },
    {
      "commit": "86db1e29772372155db08ff48a9ceb76e11a2ad1",
      "tree": "312f38eb3245873c476c50f816b85610fef9615a",
      "parents": [
        "8324aa91d1e11a1fc25f209687a0b2e6c2ed47d0"
      ],
      "author": {
        "name": "Jens Axboe",
        "email": "jens.axboe@oracle.com",
        "time": "Tue Jan 29 14:53:40 2008 +0100"
      },
      "committer": {
        "name": "Jens Axboe",
        "email": "jens.axboe@oracle.com",
        "time": "Tue Jan 29 21:55:08 2008 +0100"
      },
      "message": "block: continue ll_rw_blk.c splitup\n\nAdds files for barrier handling, rq execution, io context handling,\nmapping data to requests, and queue settings.\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n"
    }
  ]
}