)]}'
{
  "log": [
    {
      "commit": "9b04c5fec43c0da610a2c37f70c5b013101a6ad7",
      "tree": "f04767281b7067fba91cf0d37440bf454c492e38",
      "parents": [
        "c3eede8e0a1292d95c051cf947738687b9c42322"
      ],
      "author": {
        "name": "Cong Wang",
        "email": "amwang@redhat.com",
        "time": "Fri Nov 25 23:14:39 2011 +0800"
      },
      "committer": {
        "name": "Cong Wang",
        "email": "xiyou.wangcong@gmail.com",
        "time": "Tue Mar 20 21:48:27 2012 +0800"
      },
      "message": "mm: remove the second argument of k[un]map_atomic()\n\nSigned-off-by: Cong Wang \u003camwang@redhat.com\u003e\n"
    },
    {
      "commit": "32aaeffbd4a7457bf2f7448b33b5946ff2a960eb",
      "tree": "faf7ad871d87176423ff9ed1d1ba4d9c688fc23f",
      "parents": [
        "208bca0860406d16398145ddd950036a737c3c9d",
        "67b84999b1a8b1af5625b1eabe92146c5eb42932"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Sun Nov 06 19:44:47 2011 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Sun Nov 06 19:44:47 2011 -0800"
      },
      "message": "Merge branch \u0027modsplit-Oct31_2011\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux\n\n* \u0027modsplit-Oct31_2011\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits)\n  Revert \"tracing: Include module.h in define_trace.h\"\n  irq: don\u0027t put module.h into irq.h for tracking irqgen modules.\n  bluetooth: macroize two small inlines to avoid module.h\n  ip_vs.h: fix implicit use of module_get/module_put from module.h\n  nf_conntrack.h: fix up fallout from implicit moduleparam.h presence\n  include: replace linux/module.h with \"struct module\" wherever possible\n  include: convert various register fcns to macros to avoid include chaining\n  crypto.h: remove unused crypto_tfm_alg_modname() inline\n  uwb.h: fix implicit use of asm/page.h for PAGE_SIZE\n  pm_runtime.h: explicitly requires notifier.h\n  linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h\n  miscdevice.h: fix up implicit use of lists and types\n  stop_machine.h: fix implicit use of smp.h for smp_processor_id\n  of: fix implicit use of errno.h in include/linux/of.h\n  of_platform.h: delete needless include \u003clinux/module.h\u003e\n  acpi: remove module.h include from platform/aclinux.h\n  miscdevice.h: delete unnecessary inclusion of module.h\n  device_cgroup.h: delete needless include \u003clinux/module.h\u003e\n  net: sch_generic remove redundant use of \u003clinux/module.h\u003e\n  net: inet_timewait_sock doesnt need \u003clinux/module.h\u003e\n  ...\n\nFix up trivial conflicts (other header files, and  removal of the ab3550 mfd driver) in\n - drivers/media/dvb/frontends/dibx000_common.c\n - drivers/media/video/{mt9m111.c,ov6650.c}\n - drivers/mfd/ab3550-core.c\n - include/linux/dmaengine.h\n"
    },
    {
      "commit": "b95f1b31b75588306e32b2afd32166cad48f670b",
      "tree": "b5496144e41b117cfe5ae70b145b5351709ec4d0",
      "parents": [
        "b9e15bafdf1aa20791cdefdcbf1ccf7d7aa03aaa"
      ],
      "author": {
        "name": "Paul Gortmaker",
        "email": "paul.gortmaker@windriver.com",
        "time": "Sun Oct 16 02:01:52 2011 -0400"
      },
      "committer": {
        "name": "Paul Gortmaker",
        "email": "paul.gortmaker@windriver.com",
        "time": "Mon Oct 31 09:20:12 2011 -0400"
      },
      "message": "mm: Map most files to use export.h instead of module.h\n\nThe files changed within are only using the EXPORT_SYMBOL\nmacro variants.  They are not using core modular infrastructure\nand hence don\u0027t need module.h but only the export.h header.\n\nSigned-off-by: Paul Gortmaker \u003cpaul.gortmaker@windriver.com\u003e\n"
    },
    {
      "commit": "3bcfeaf93f44112053e1c36aa681d9efc1185ddc",
      "tree": "15206964bf4eb4892de4c8850c799def913971db",
      "parents": [
        "c9a929dde3913780b5c416f4bb9d9ed804f509ce"
      ],
      "author": {
        "name": "David Vrabel",
        "email": "david.vrabel@citrix.com",
        "time": "Thu Oct 20 21:24:30 2011 +0200"
      },
      "committer": {
        "name": "Jens Axboe",
        "email": "axboe@kernel.dk",
        "time": "Thu Oct 20 21:24:30 2011 +0200"
      },
      "message": "block: initialize the bounce pool if high memory may be added later\n\ninit_emergency_pool() does not create the page pool for bouncing block\nrequests if the current count of high pages is zero.  If high memory\nmay be added later (either via memory hotplug or a balloon driver in a\nvirtualized system) then a oops occurs if a request with a high page\nneed bouncing because the pool does not exist.\n\nSo, always create the pool if memory hotplug is enabled and change the\ntest so it\u0027s valid even if all high pages are currently in the balloon\n(the balloon drivers adjust totalhigh_pages but not max_pfn).\n\nSigned-off-by: David Vrabel \u003cdavid.vrabel@citrix.com\u003e\nSigned-off-by: Jens Axboe \u003caxboe@kernel.dk\u003e\n"
    },
    {
      "commit": "ac8456d6f9a3011c824176bd6084d39e5f70a382",
      "tree": "8973f7b5f9993d34d0301380972475dca2410afd",
      "parents": [
        "47016434257b90445113eed1c5b8b57eb2d35330"
      ],
      "author": {
        "name": "Gary King",
        "email": "gking@nvidia.com",
        "time": "Thu Sep 09 16:38:05 2010 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Sep 09 18:57:25 2010 -0700"
      },
      "message": "bounce: call flush_dcache_page() after bounce_copy_vec()\n\nI have been seeing problems on Tegra 2 (ARMv7 SMP) systems with HIGHMEM\nenabled on 2.6.35 (plus some patches targetted at 2.6.36 to perform cache\nmaintenance lazily), and the root cause appears to be that the mm bouncing\ncode is calling flush_dcache_page before it copies the bounce buffer into\nthe bio.\n\nThe bounced page needs to be flushed after data is copied into it, to\nensure that architecture implementations can synchronize instruction and\ndata caches if necessary.\n\nSigned-off-by: Gary King \u003cgking@nvidia.com\u003e\nCc: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Russell King \u003crmk@arm.linux.org.uk\u003e\nAcked-by: Jens Axboe \u003caxboe@kernel.dk\u003e\nCc: \u003cstable@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": "5a0e3ad6af8660be21ca98a971cd00f331318c05",
      "tree": "5bfb7be11a03176a87296a43ac6647975c00a1d1",
      "parents": [
        "ed391f4ebf8f701d3566423ce8f17e614cde9806"
      ],
      "author": {
        "name": "Tejun Heo",
        "email": "tj@kernel.org",
        "time": "Wed Mar 24 17:04:11 2010 +0900"
      },
      "committer": {
        "name": "Tejun Heo",
        "email": "tj@kernel.org",
        "time": "Tue Mar 30 22:02:32 2010 +0900"
      },
      "message": "include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h\n\npercpu.h is included by sched.h and module.h and thus ends up being\nincluded when building most .c files.  percpu.h includes slab.h which\nin turn includes gfp.h making everything defined by the two files\nuniversally available and complicating inclusion dependencies.\n\npercpu.h -\u003e slab.h dependency is about to be removed.  Prepare for\nthis change by updating users of gfp and slab facilities include those\nheaders directly instead of assuming availability.  As this conversion\nneeds to touch large number of source files, the following script is\nused as the basis of conversion.\n\n  http://userweb.kernel.org/~tj/misc/slabh-sweep.py\n\nThe script does the followings.\n\n* Scan files for gfp and slab usages and update includes such that\n  only the necessary includes are there.  ie. if only gfp is used,\n  gfp.h, if slab is used, slab.h.\n\n* When the script inserts a new include, it looks at the include\n  blocks and try to put the new include such that its order conforms\n  to its surrounding.  It\u0027s put in the include block which contains\n  core kernel includes, in the same order that the rest are ordered -\n  alphabetical, Christmas tree, rev-Xmas-tree or at the end if there\n  doesn\u0027t seem to be any matching order.\n\n* If the script can\u0027t find a place to put a new include (mostly\n  because the file doesn\u0027t have fitting include block), it prints out\n  an error message indicating which .h file needs to be added to the\n  file.\n\nThe conversion was done in the following steps.\n\n1. The initial automatic conversion of all .c files updated slightly\n   over 4000 files, deleting around 700 includes and adding ~480 gfp.h\n   and ~3000 slab.h inclusions.  The script emitted errors for ~400\n   files.\n\n2. Each error was manually checked.  Some didn\u0027t need the inclusion,\n   some needed manual addition while adding it to implementation .h or\n   embedding .c file was more appropriate for others.  This step added\n   inclusions to around 150 files.\n\n3. The script was run again and the output was compared to the edits\n   from #2 to make sure no file was left behind.\n\n4. Several build tests were done and a couple of problems were fixed.\n   e.g. lib/decompress_*.c used malloc/free() wrappers around slab\n   APIs requiring slab.h to be added manually.\n\n5. The script was run on all .h files but without automatically\n   editing them as sprinkling gfp.h and slab.h inclusions around .h\n   files could easily lead to inclusion dependency hell.  Most gfp.h\n   inclusion directives were ignored as stuff from gfp.h was usually\n   wildly available and often used in preprocessor macros.  Each\n   slab.h inclusion directive was examined and added manually as\n   necessary.\n\n6. percpu.h was updated not to include slab.h.\n\n7. Build test were done on the following configurations and failures\n   were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my\n   distributed build env didn\u0027t work with gcov compiles) and a few\n   more options had to be turned off depending on archs to make things\n   build (like ipr on powerpc/64 which failed due to missing writeq).\n\n   * x86 and x86_64 UP and SMP allmodconfig and a custom test config.\n   * powerpc and powerpc64 SMP allmodconfig\n   * sparc and sparc64 SMP allmodconfig\n   * ia64 SMP allmodconfig\n   * s390 SMP allmodconfig\n   * alpha SMP allmodconfig\n   * um on x86_64 SMP allmodconfig\n\n8. percpu.h modifications were reverted so that it could be applied as\n   a separate patch and serve as bisection point.\n\nGiven the fact that I had only a couple of failures from tests on step\n6, I\u0027m fairly confident about the coverage of this conversion patch.\nIf there is a breakage, it\u0027s likely to be something in one of the arch\nheaders which should be easily discoverable easily on most builds of\nthe specific arch.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nGuess-its-ok-by: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nCc: Ingo Molnar \u003cmingo@redhat.com\u003e\nCc: Lee Schermerhorn \u003cLee.Schermerhorn@hp.com\u003e\n"
    },
    {
      "commit": "e212d6f25084e8e9b02a04ba514d7bb1e4a4924a",
      "tree": "a94638953a7aa7f0bbd6f5d08fa3c649ce0ef8ce",
      "parents": [
        "5ced504b1bd1979378de35c56aa5d3d79fb5033f"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Tue Jun 16 11:19:36 2009 +0200"
      },
      "committer": {
        "name": "Jens Axboe",
        "email": "jens.axboe@oracle.com",
        "time": "Tue Jun 16 11:19:36 2009 +0200"
      },
      "message": "block: remove some includings of blktrace_api.h\n\nWhen porting blktrace to tracepoints, we changed to trace/block.h\nfor trace prober declarations.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n"
    },
    {
      "commit": "c9059598ea8981d02356eead3188bf7fa4d717b8",
      "tree": "03e73b20a30e988da7c6a3e0ad93b2dc5843274d",
      "parents": [
        "0a33f80a8373eca7f4bea3961d1346c3815fa5ed",
        "b0fd271d5fba0b2d00888363f3869e3f9b26caa9"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Jun 11 10:52:27 2009 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Jun 11 11:10:35 2009 -0700"
      },
      "message": "Merge branch \u0027for-2.6.31\u0027 of git://git.kernel.dk/linux-2.6-block\n\n* \u0027for-2.6.31\u0027 of git://git.kernel.dk/linux-2.6-block: (153 commits)\n  block: add request clone interface (v2)\n  floppy: fix hibernation\n  ramdisk: remove long-deprecated \"ramdisk\u003d\" boot-time parameter\n  fs/bio.c: add missing __user annotation\n  block: prevent possible io_context-\u003erefcount overflow\n  Add serial number support for virtio_blk, V4a\n  block: Add missing bounce_pfn stacking and fix comments\n  Revert \"block: Fix bounce limit setting in DM\"\n  cciss: decode unit attention in SCSI error handling code\n  cciss: Remove no longer needed sendcmd reject processing code\n  cciss: change SCSI error handling routines to work with interrupts enabled.\n  cciss: separate error processing and command retrying code in sendcmd_withirq_core()\n  cciss: factor out fix target status processing code from sendcmd functions\n  cciss: simplify interface of sendcmd() and sendcmd_withirq()\n  cciss: factor out core of sendcmd_withirq() for use by SCSI error handling code\n  cciss: Use schedule_timeout_uninterruptible in SCSI error handling code\n  block: needs to set the residual length of a bidi request\n  Revert \"block: implement blkdev_readpages\"\n  block: Fix bounce limit setting in DM\n  Removed reference to non-existing file Documentation/PCI/PCI-DMA-mapping.txt\n  ...\n\nManually fix conflicts with tracing updates in:\n\tblock/blk-sysfs.c\n\tdrivers/ide/ide-atapi.c\n\tdrivers/ide/ide-cd.c\n\tdrivers/ide/ide-floppy.c\n\tdrivers/ide/ide-tape.c\n\tinclude/trace/events/block.h\n\tkernel/trace/blktrace.c\n"
    },
    {
      "commit": "55782138e47d9baf2f7d3a7af9e7cf42adf72c56",
      "tree": "c7ccabae20e27bbeb08b69a358e8b86c98d1d9f3",
      "parents": [
        "f57a8a1911342265e7acdc190333c4e9235a6632"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Tue Jun 09 13:43:05 2009 +0800"
      },
      "committer": {
        "name": "Steven Rostedt",
        "email": "rostedt@goodmis.org",
        "time": "Tue Jun 09 12:34:23 2009 -0400"
      },
      "message": "tracing/events: convert block trace points to TRACE_EVENT()\n\nTRACE_EVENT is a more generic way to define tracepoints. Doing so adds\nthese new capabilities to this tracepoint:\n\n  - zero-copy and per-cpu splice() tracing\n  - binary tracing without printf overhead\n  - structured logging records exposed under /debug/tracing/events\n  - trace events embedded in function tracer output and other plugins\n  - user-defined, per tracepoint filter expressions\n  ...\n\nCons:\n\n  - no dev_t info for the output of plug, unplug_timer and unplug_io events.\n    no dev_t info for getrq and sleeprq events if bio \u003d\u003d NULL.\n    no dev_t info for rq_abort,...,rq_requeue events if rq-\u003erq_disk \u003d\u003d NULL.\n\n    This is mainly because we can\u0027t get the deivce from a request queue.\n    But this may change in the future.\n\n  - A packet command is converted to a string in TP_assign, not TP_print.\n    While blktrace do the convertion just before output.\n\n    Since pc requests should be rather rare, this is not a big issue.\n\n  - In blktrace, an event can have 2 different print formats, but a TRACE_EVENT\n    has a unique format, which means we have some unused data in a trace entry.\n\n    The overhead is minimized by using __dynamic_array() instead of __array().\n\nI\u0027ve benchmarked the ioctl blktrace vs the splice based TRACE_EVENT tracing:\n\n      dd                   dd + ioctl blktrace       dd + TRACE_EVENT (splice)\n1     7.36s, 42.7 MB/s     7.50s, 42.0 MB/s          7.41s, 42.5 MB/s\n2     7.43s, 42.3 MB/s     7.48s, 42.1 MB/s          7.43s, 42.4 MB/s\n3     7.38s, 42.6 MB/s     7.45s, 42.2 MB/s          7.41s, 42.5 MB/s\n\nSo the overhead of tracing is very small, and no regression when using\nthose trace events vs blktrace.\n\nAnd the binary output of TRACE_EVENT is much smaller than blktrace:\n\n # ls -l -h\n -rw-r--r-- 1 root root 8.8M 06-09 13:24 sda.blktrace.0\n -rw-r--r-- 1 root root 195K 06-09 13:24 sda.blktrace.1\n -rw-r--r-- 1 root root 2.7M 06-09 13:25 trace_splice.out\n\nFollowing are some comparisons between TRACE_EVENT and blktrace:\n\nplug:\n  kjournald-480   [000]   303.084981: block_plug: [kjournald]\n  kjournald-480   [000]   303.084981:   8,0    P   N [kjournald]\n\nunplug_io:\n  kblockd/0-118   [000]   300.052973: block_unplug_io: [kblockd/0] 1\n  kblockd/0-118   [000]   300.052974:   8,0    U   N [kblockd/0] 1\n\nremap:\n  kjournald-480   [000]   303.085042: block_remap: 8,0 W 102736992 + 8 \u003c- (8,8) 33384\n  kjournald-480   [000]   303.085043:   8,0    A   W 102736992 + 8 \u003c- (8,8) 33384\n\nbio_backmerge:\n  kjournald-480   [000]   303.085086: block_bio_backmerge: 8,0 W 102737032 + 8 [kjournald]\n  kjournald-480   [000]   303.085086:   8,0    M   W 102737032 + 8 [kjournald]\n\ngetrq:\n  kjournald-480   [000]   303.084974: block_getrq: 8,0 W 102736984 + 8 [kjournald]\n  kjournald-480   [000]   303.084975:   8,0    G   W 102736984 + 8 [kjournald]\n\n  bash-2066  [001]  1072.953770:   8,0    G   N [bash]\n  bash-2066  [001]  1072.953773: block_getrq: 0,0 N 0 + 0 [bash]\n\nrq_complete:\n  konsole-2065  [001]   300.053184: block_rq_complete: 8,0 W () 103669040 + 16 [0]\n  konsole-2065  [001]   300.053191:   8,0    C   W 103669040 + 16 [0]\n\n  ksoftirqd/1-7   [001]  1072.953811:   8,0    C   N (5a 00 08 00 00 00 00 00 24 00) [0]\n  ksoftirqd/1-7   [001]  1072.953813: block_rq_complete: 0,0 N (5a 00 08 00 00 00 00 00 24 00) 0 + 0 [0]\n\nrq_insert:\n  kjournald-480   [000]   303.084985: block_rq_insert: 8,0 W 0 () 102736984 + 8 [kjournald]\n  kjournald-480   [000]   303.084986:   8,0    I   W 102736984 + 8 [kjournald]\n\nChangelog from v2 -\u003e v3:\n\n- use the newly introduced __dynamic_array().\n\nChangelog from v1 -\u003e v2:\n\n- use __string() instead of __array() to minimize the memory required\n  to store hex dump of rq-\u003ecmd().\n\n- support large pc requests.\n\n- add missing blk_fill_rwbs_rq() in block_rq_requeue TRACE_EVENT.\n\n- some cleanups.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4A2DF669.5070905@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n"
    },
    {
      "commit": "ae03bf639a5027d27270123f5f6e3ee6a412781d",
      "tree": "d705f41a188ad656b1f47f7952626a9f992e3b8f",
      "parents": [
        "e1defc4ff0cf57aca6c5e3ff99fa503f5943c1f1"
      ],
      "author": {
        "name": "Martin K. Petersen",
        "email": "martin.petersen@oracle.com",
        "time": "Fri May 22 17:17:50 2009 -0400"
      },
      "committer": {
        "name": "Jens Axboe",
        "email": "jens.axboe@oracle.com",
        "time": "Fri May 22 23:22:54 2009 +0200"
      },
      "message": "block: Use accessor functions for queue limits\n\nConvert all external users of queue limits to using wrapper functions\ninstead of poking the request queue variables directly.\n\nSigned-off-by: Martin K. Petersen \u003cmartin.petersen@oracle.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n"
    },
    {
      "commit": "f735b5eeb9fcbb001e0cf2a5296b19c4bbaec55f",
      "tree": "2d260f45b150f8dbf56242bd58372769e6478205",
      "parents": [
        "a0ea8622918019ed76c0b85f5d0247809ba05a7c"
      ],
      "author": {
        "name": "Jens Axboe",
        "email": "jens.axboe@oracle.com",
        "time": "Tue Dec 23 12:44:19 2008 +0100"
      },
      "committer": {
        "name": "Jens Axboe",
        "email": "jens.axboe@oracle.com",
        "time": "Mon Dec 29 08:29:52 2008 +0100"
      },
      "message": "bounce: don\u0027t rely on a zeroed bio_vec list\n\n__blk_queue_bounce() relies on a zeroed bio_vec list, since it looks\nup arbitrary indexes in the allocated bio. The block layer only\nguarentees that added entries are valid, so clear memory after alloc.\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n"
    },
    {
      "commit": "0bfc24559d7945506184d86739fe365a181f06b7",
      "tree": "5c152128faac7080f4802ce03d1c6b6bc7173227",
      "parents": [
        "5f3ea37c7716db4e894a480e0c18b24399595b6b"
      ],
      "author": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Wed Nov 26 11:59:56 2008 +0100"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Wed Nov 26 13:04:35 2008 +0100"
      },
      "message": "blktrace: port to tracepoints, update\n\nPort to the new tracepoints API: split DEFINE_TRACE() and DECLARE_TRACE()\nsites. Spread them out to the usage sites, as suggested by\nMathieu Desnoyers.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nAcked-by: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\n"
    },
    {
      "commit": "5f3ea37c7716db4e894a480e0c18b24399595b6b",
      "tree": "db6784635d024894f641b340dcd7c5060c446077",
      "parents": [
        "509dceef6470442d8c7b8a43ec34125205840b3c"
      ],
      "author": {
        "name": "Arnaldo Carvalho de Melo",
        "email": "acme@redhat.com",
        "time": "Thu Oct 30 08:34:33 2008 +0100"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Wed Nov 26 12:13:34 2008 +0100"
      },
      "message": "blktrace: port to tracepoints\n\nThis was a forward port of work done by Mathieu Desnoyers, I changed it to\nencode the \u0027what\u0027 parameter on the tracepoint name, so that one can register\ninterest in specific events and not on classes of events to then check the\n\u0027what\u0027 parameter.\n\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "36144077bce9f89763ce994bc631cbd1c9db7785",
      "tree": "ccc8ccff5edd75d99d2a1b8c35f3956e2f5b288e",
      "parents": [
        "051cc3952a8fb6fa875a4eff68d06cf42207dcf4"
      ],
      "author": {
        "name": "Jens Axboe",
        "email": "jens.axboe@oracle.com",
        "time": "Thu Aug 14 13:12:15 2008 +0200"
      },
      "committer": {
        "name": "Jens Axboe",
        "email": "jens.axboe@oracle.com",
        "time": "Thu Oct 09 08:56:01 2008 +0200"
      },
      "message": "highmem: use bio_has_data() in the bounce path\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n"
    },
    {
      "commit": "bf2de6f5a4faf0197268f18d08969b003b87b6e8",
      "tree": "16830a15a7effea352445a7aba5dbb433314d3eb",
      "parents": [
        "c07e2b41291853b19fff11ceee3657df252a4e42"
      ],
      "author": {
        "name": "Jens Axboe",
        "email": "jens.axboe@oracle.com",
        "time": "Thu Sep 27 13:01:25 2007 +0200"
      },
      "committer": {
        "name": "Jens Axboe",
        "email": "jens.axboe@oracle.com",
        "time": "Tue Oct 16 11:03:56 2007 +0200"
      },
      "message": "block: Initial support for data-less (or empty) barrier support\n\nThis implements functionality to pass down or insert a barrier\nin a queue, without having data attached to it. The -\u003eprepare_flush_fn()\ninfrastructure from data barriers are reused to provide this\nfunctionality.\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n"
    },
    {
      "commit": "6712ecf8f648118c3363c142196418f89a510b90",
      "tree": "347d39a7d5a7ed96d3b1afecd28de2a0f98b98c9",
      "parents": [
        "5bb23a688b2de23d7765a1dd439d89c038378978"
      ],
      "author": {
        "name": "NeilBrown",
        "email": "neilb@suse.de",
        "time": "Thu Sep 27 12:47:43 2007 +0200"
      },
      "committer": {
        "name": "Jens Axboe",
        "email": "axboe@carl.home.kernel.dk",
        "time": "Wed Oct 10 09:25:57 2007 +0200"
      },
      "message": "Drop \u0027size\u0027 argument from bio_endio and bi_end_io\n\nAs bi_end_io is only called once when the reqeust is complete,\nthe \u0027size\u0027 argument is now redundant.  Remove it.\n\nNow there is no need for bio_endio to subtract the size completed\nfrom bi_size.  So don\u0027t do that either.\n\nWhile we are at it, change bi_end_io to return void.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n"
    },
    {
      "commit": "165125e1e480f9510a5ffcfbfee4e3ee38c05f23",
      "tree": "8009c8a5ff09e26dc2418d42f66ecafb055c52a2",
      "parents": [
        "f695baf2df9e0413d3521661070103711545207a"
      ],
      "author": {
        "name": "Jens Axboe",
        "email": "jens.axboe@oracle.com",
        "time": "Tue Jul 24 09:28:11 2007 +0200"
      },
      "committer": {
        "name": "Jens Axboe",
        "email": "jens.axboe@oracle.com",
        "time": "Tue Jul 24 09:28:11 2007 +0200"
      },
      "message": "[BLOCK] Get rid of request_queue_t typedef\n\nSome of the code has been gradually transitioned to using the proper\nstruct request_queue, but there\u0027s lots left. So do a full sweet of\nthe kernel and get rid of this typedef and replace its uses with\nthe proper type.\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n"
    },
    {
      "commit": "f772b3d9ca135087a70406d8466e57d1cf29237e",
      "tree": "aeb26fbd7af4a522f267cd50e1ad227e54091ea0",
      "parents": [
        "703071b5b93d88d5acb0edd5b9dd86c69ad970f2"
      ],
      "author": {
        "name": "Vasily Tarasov",
        "email": "vtaras@openvz.org",
        "time": "Tue Mar 27 08:52:47 2007 +0200"
      },
      "committer": {
        "name": "Jens Axboe",
        "email": "jens.axboe@oracle.com",
        "time": "Tue Mar 27 08:52:47 2007 +0200"
      },
      "message": "block: blk_max_pfn is somtimes wrong\n\nThere is a small problem in handling page bounce.\n\nAt the moment blk_max_pfn equals max_pfn, which is in fact not maximum\npossible _number_ of a page frame, but the _amount_ of page frames.  For\nexample for the 32bit x86 node with 4Gb RAM, max_pfn \u003d 0x100000, but not\n0xFFFF.\n\nrequest_queue structure has a member q-\u003ebounce_pfn and queue needs bounce\npages for the pages _above_ this limit.  This routine is handled by\nblk_queue_bounce(), where the following check is produced:\n\n\tif (q-\u003ebounce_pfn \u003e\u003d blk_max_pfn)\n\t\treturn;\n\nAssume, that a driver has set q-\u003ebounce_pfn to 0xFFFF, but blk_max_pfn\nequals 0x10000.  In such situation the check above fails and for each bio\nwe always fall down for iterating over pages tied to the bio.\n\nI want to notice, that for quite a big range of device drivers (ide, md,\n...) such problem doesn\u0027t happen because they use BLK_BOUNCE_ANY for\nbounce_pfn.  BLK_BOUNCE_ANY is defined as blk_max_pfn \u003c\u003c PAGE_SHIFT, and\nthen the check above doesn\u0027t fail.  But for other drivers, which obtain\nreuired value from drivers, it fails.  For example sata_nv uses\nATA_DMA_MASK or dev-\u003edma_mask.\n\nI propose to use (max_pfn - 1) for blk_max_pfn.  And the same for\nblk_max_low_pfn.  The patch also cleanses some checks related with\nbounce_pfn.\n\nSigned-off-by: Vasily Tarasov \u003cvtaras@openvz.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n"
    },
    {
      "commit": "c43a5082a61f351248c5f015ee5d4641309bd96e",
      "tree": "1a01acbf9d606c392f85449fe6d6af06154a9346",
      "parents": [
        "d39c9400ae0d60aaaf534b1ad860a9bc1413d8af"
      ],
      "author": {
        "name": "Jens Axboe",
        "email": "jens.axboe@oracle.com",
        "time": "Fri Jan 12 12:20:26 2007 +0100"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.osdl.org",
        "time": "Fri Jan 12 10:46:49 2007 -0800"
      },
      "message": "[PATCH] blktrace: only add a bounce trace when we really bounce\n\nCurrently we issue a bounce trace when __blk_queue_bounce() is called,\nbut that merely means that the device has a lower dma mask than the\nhigher pages in the system. The bio itself may still be lower pages. So\nmove the bounce trace into __blk_queue_bounce(), when we know there will\nactually be page bouncing.\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "831058dec3735665fe91bd0d37b6a8cf56b91abd",
      "tree": "5ef7d38d9c43b24d5a31eb8f0e23c91e20e799e7",
      "parents": [
        "b398f6bff93a247d2a7099e92905374966e4558f"
      ],
      "author": {
        "name": "David Howells",
        "email": "dhowells@redhat.com",
        "time": "Tue Aug 29 19:06:00 2006 +0100"
      },
      "committer": {
        "name": "Jens Axboe",
        "email": "axboe@nelson.home.kernel.dk",
        "time": "Sat Sep 30 20:32:11 2006 +0200"
      },
      "message": "[PATCH] BLOCK: Separate the bounce buffering code from the highmem code [try #6]\n\nMove the bounce buffer code from mm/highmem.c to mm/bounce.c so that it can be\nmore easily disabled when the block layer is disabled.\n\n!!!NOTE!!! There may be a bug in this code: Should init_emergency_pool() be\n\t   contingent on CONFIG_HIGHMEM?\n\nSigned-Off-By: David Howells \u003cdhowells@redhat.com\u003e\nSigned-off-by: Jens Axboe \u003caxboe@kernel.dk\u003e\n"
    }
  ]
}