)]}'
{
  "log": [
    {
      "commit": "68c38fc3cb4e5a60f502ee9c45f3dfe70e5165ad",
      "tree": "32293b2fd969c57032407294863c1f2ee6bf5996",
      "parents": [
        "bbc8cb5baead9607309583b20873ab0cc8d89eaf"
      ],
      "author": {
        "name": "Pekka Enberg",
        "email": "penberg@cs.helsinki.fi",
        "time": "Thu Jul 15 23:18:22 2010 +0300"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Sat Jul 17 12:06:22 2010 +0200"
      },
      "message": "sched: No need for bootmem special cases\n\nAs of commit dcce284 (\"mm: Extend gfp masking to the page\nallocator\") and commit 7e85ee0 (\"slab,slub: don\u0027t enable\ninterrupts during early boot\"), the slab allocator makes\nsure we don\u0027t attempt to sleep during boot.\n\nTherefore, remove bootmem special cases from the scheduler\nand use plain GFP_KERNEL instead.\n\nSigned-off-by: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1279225102-2572-1-git-send-email-penberg@cs.helsinki.fi\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\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": "318ae2edc3b29216abd8a2510f3f80b764f06858",
      "tree": "ce595adde342f57f379d277b25e4dd206988a052",
      "parents": [
        "25cf84cf377c0aae5dbcf937ea89bc7893db5176",
        "3e58974027b04e84f68b964ef368a6cd758e2f84"
      ],
      "author": {
        "name": "Jiri Kosina",
        "email": "jkosina@suse.cz",
        "time": "Mon Mar 08 16:55:37 2010 +0100"
      },
      "committer": {
        "name": "Jiri Kosina",
        "email": "jkosina@suse.cz",
        "time": "Mon Mar 08 16:55:37 2010 +0100"
      },
      "message": "Merge branch \u0027for-next\u0027 into for-linus\n\nConflicts:\n\tDocumentation/filesystems/proc.txt\n\tarch/arm/mach-u300/include/mach/debug-macro.S\n\tdrivers/net/qlge/qlge_ethtool.c\n\tdrivers/net/qlge/qlge_main.c\n\tdrivers/net/typhoon.c\n"
    },
    {
      "commit": "984b3f5746ed2cde3d184651dabf26980f2b66e5",
      "tree": "87dc2162b4778b0075874d9592384530022e15a4",
      "parents": [
        "e3cb91ce1ac1d93a7cc6f81bb5247f7602b572bb"
      ],
      "author": {
        "name": "Akinobu Mita",
        "email": "akinobu.mita@gmail.com",
        "time": "Fri Mar 05 13:41:37 2010 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Sat Mar 06 11:26:23 2010 -0800"
      },
      "message": "bitops: rename for_each_bit() to for_each_set_bit()\n\nRename for_each_bit to for_each_set_bit in the kernel source tree.  To\npermit for_each_clear_bit(), should that ever be added.\n\nThe patch includes a macro to map the old for_each_bit() onto the new\nfor_each_set_bit().  This is a (very) temporary thing to ease the migration.\n\n[akpm@linux-foundation.org: add temporary for_each_bit()]\nSuggested-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nSuggested-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Akinobu Mita \u003cakinobu.mita@gmail.com\u003e\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nCc: Russell King \u003crmk@arm.linux.org.uk\u003e\nCc: David Woodhouse \u003cdwmw2@infradead.org\u003e\nCc: Artem Bityutskiy \u003cdedekind@infradead.org\u003e\nCc: Stephen Rothwell \u003csfr@canb.auug.org.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "2a61aa401638529cd4231f6106980d307fba98fa",
      "tree": "a3d7565570c5996d0b3ae5fdf0126e065e750431",
      "parents": [
        "c41b20e721ea4f6f20f66a66e7f0c3c97a2ca9c2"
      ],
      "author": {
        "name": "Adam Buchbinder",
        "email": "adam.buchbinder@gmail.com",
        "time": "Fri Dec 11 16:35:40 2009 -0500"
      },
      "committer": {
        "name": "Jiri Kosina",
        "email": "jkosina@suse.cz",
        "time": "Thu Feb 04 11:55:45 2010 +0100"
      },
      "message": "Fix misspellings of \"invocation\" in comments.\n\nSome comments misspell \"invocation\"; this fixes them. No code\nchanges.\n\nSigned-off-by: Adam Buchbinder \u003cadam.buchbinder@gmail.com\u003e\nSigned-off-by: Jiri Kosina \u003cjkosina@suse.cz\u003e\n"
    },
    {
      "commit": "90fdbdb48442a03c72cae5463e6edb64cb3a3a7d",
      "tree": "7264bf97f0f597879734c7dae46f4e8f7fe04745",
      "parents": [
        "60db48cacb9b253d5607a5ff206112a59cd09e34"
      ],
      "author": {
        "name": "Akinobu Mita",
        "email": "akinobu.mita@gmail.com",
        "time": "Sun Jan 31 20:53:24 2010 +0900"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Feb 02 06:58:27 2010 +0100"
      },
      "message": "sched: Use for_each_bit\n\nNo change in functionality.\n\nSigned-off-by: Akinobu Mita \u003cakinobu.mita@gmail.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nLKML-Reference: \u003c1264938810-4173-1-git-send-email-akinobu.mita@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "fe841226bd954fba4fd79f037a876053fe9c3217",
      "tree": "0819ff8a78b9eeed61a1dc26b5aa900f48d0c2e3",
      "parents": [
        "0986b11b12ad2baed338385f79fd0dec58a23fc6"
      ],
      "author": {
        "name": "Thomas Gleixner",
        "email": "tglx@linutronix.de",
        "time": "Tue Nov 17 17:59:15 2009 +0100"
      },
      "committer": {
        "name": "Thomas Gleixner",
        "email": "tglx@linutronix.de",
        "time": "Mon Dec 14 23:55:33 2009 +0100"
      },
      "message": "sched: Convert cpupri lock to raw_spinlock\n\nConvert locks which cannot be sleeping locks in preempt-rt to\nraw_spinlocks.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nAcked-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "c3a2ae3d93c0f10d29c071f599764d00b8de00cb",
      "tree": "e831ec79696bad3039fc9700bbb412ad38945985",
      "parents": [
        "da19ab510343c6496fe8b8f890091296032025c9"
      ],
      "author": {
        "name": "Steven Rostedt",
        "email": "srostedt@redhat.com",
        "time": "Wed Jul 29 00:21:23 2009 -0400"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Sun Aug 02 14:26:09 2009 +0200"
      },
      "message": "sched: Add new prio to cpupri before removing old prio\n\nWe need to add the new prio to the cpupri accounting before\nremoving the old prio. This is because removing the old prio\nfirst will open a race window where the cpu will be removed\nfrom pri_active. In this case the cpu will not be visible for\nRT push and pulls. This could cause a RT task to not migrate\nappropriately, and create a very large latency.\n\nThis bug was found with the use of ftrace sched events and\ntrace_printk.\n\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c20090729042526.438281019@goodmis.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "07903af152b0597d94e9b0030746b63c4664e787",
      "tree": "245f1e9d7a7021f479b0d67e922c6783e59c5d50",
      "parents": [
        "e414314cce7539788dd5d2c35decad11782dd858"
      ],
      "author": {
        "name": "Gregory Haskins",
        "email": "ghaskins@novell.com",
        "time": "Thu Jul 30 10:57:28 2009 -0400"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Sun Aug 02 14:23:29 2009 +0200"
      },
      "message": "sched: Fix race in cpupri introduced by cpumask_var changes\n\nBackground:\n\nSeveral race conditions in the scheduler have cropped up\nrecently, which Steven and I have tracked down using ftrace.\nThe most recent one turns out to be a race in how the scheduler\ndetermines a suitable migration target for RT tasks, introduced\nrecently with commit:\n\n    commit 68e74568fbe5854952355e942acca51f138096d9\n    Date:   Tue Nov 25 02:35:13 2008 +1030\n\n        sched: convert struct cpupri_vec cpumask_var_t.\n\nThe original design of cpupri allowed lockless readers to\nquickly determine a best-estimate target.  Races between the\npri_active bitmap and the vec-\u003emask were handled in the\noriginal code because we would detect and return \"0\" when this\noccured.  The design was predicated on the *effective*\natomicity (*) of caching the result of cpus_and() between the\ncpus_allowed and the vec-\u003emask.\n\nCommit 68e74568 changed the behavior such that vec-\u003emask is\naccessed multiple times.  This introduces a subtle race, the\nresult of which means we can have a result that returns \"1\",\nbut with an empty bitmap.\n\n*) yes, we know cpus_and() is not a locked operator across the\n   entire composite array, but it is implicitly atomic on a\n   per-word basis which is all the design required to work.\n\nImplementation:\n\nRather than forgoing the lockless design, or reverting to a\nstack-based cpumask_t, we simply check for when the race has\nbeen encountered and continue processing in the event that the\nrace is hit.  This renders the removal race as if the priority\nbit had been atomically cleared as well, and allows the\nalgorithm to execute correctly.\n\nSigned-off-by: Gregory Haskins \u003cghaskins@novell.com\u003e\nCC: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCC: Steven Rostedt \u003csrostedt@redhat.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c20090730145728.25226.92769.stgit@dev.haskins.net\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "fd5e1b5dbaa8b4aacc0e251d74182eda37062194",
      "tree": "cba4e780784649fe9c9535b8d5ac1617f52e1a15",
      "parents": [
        "84599f8a59e77699f18f06948cea171a349a3f0f"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Mon Jun 15 13:34:19 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Wed Jun 17 16:08:04 2009 +0200"
      },
      "message": "sched: Remove unneeded __ref tag\n\nThose two functions no longer call alloc_bootmmem_cpumask_var(),\nso no need to tag them with __init_refok.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nLKML-Reference: \u003c4A35DD5B.9050106@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "0fb530291621c8b8a1b16abeeab05d9262489f71",
      "tree": "4b5fbb1781b279caf9cd20fb1ef5d04028548f43",
      "parents": [
        "4bdddf8ff9bbb8aa7b4d7847586202bd25842c90"
      ],
      "author": {
        "name": "Pekka Enberg",
        "email": "penberg@cs.helsinki.fi",
        "time": "Thu Jun 11 08:41:22 2009 +0300"
      },
      "committer": {
        "name": "Pekka Enberg",
        "email": "penberg@cs.helsinki.fi",
        "time": "Thu Jun 11 19:27:12 2009 +0300"
      },
      "message": "sched: use slab in cpupri_init()\n\nLets not use the bootmem allocator in cpupri_init() as slab is already up when\nit is run.\n\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nCc: Yinghai Lu \u003cyinghai@kernel.org\u003e\nSigned-off-by: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\n"
    },
    {
      "commit": "eaa958402ea40851097d051f52ba1bb7a885efe9",
      "tree": "9187f59ff0ee6ac138b5c81a2212bc10f46d04a5",
      "parents": [
        "0281b5dc0350cbf6dd21ed558a33cccce77abc02"
      ],
      "author": {
        "name": "Yinghai Lu",
        "email": "yinghai@kernel.org",
        "time": "Sat Jun 06 14:51:36 2009 -0700"
      },
      "committer": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Tue Jun 09 22:30:27 2009 +0930"
      },
      "message": "cpumask: alloc zeroed cpumask for static cpumask_var_ts\n\nThese are defined as static cpumask_var_t so if MAXSMP is not used,\nthey are cleared already.  Avoid surprises when MAXSMP is enabled.\n\nSigned-off-by: Yinghai Lu \u003cyinghai.lu@kernel.org\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n"
    },
    {
      "commit": "13b8bd0a5713bdf05659019badd7c0407984ece1",
      "tree": "378950741dd647b672a2b3e61988725b52557f2d",
      "parents": [
        "a18b83b7ef3c98cd8b4bb885e4a649a8f30fb7b0"
      ],
      "author": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Wed Mar 25 15:01:22 2009 +1030"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Wed Apr 01 13:24:51 2009 +0200"
      },
      "message": "sched_rt: don\u0027t allocate cpumask in fastpath\n\nImpact: cleanup\n\nAs pointed out by Steven Rostedt.  Since the arg in question is\nunused, we simply change cpupri_find() to accept NULL.\n\nReported-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nLKML-Reference: \u003c200903251501.22664.rusty@rustcorp.com.au\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "db2f59c8c9b315f2b88b1dac159b988c6009034d",
      "tree": "93e9d5584356e3f34a297ca45f1d6c17ebac2500",
      "parents": [
        "0c910d289567163dbe40ccc174b36afd1c7723bd"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Tue Jan 06 17:40:36 2009 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Jan 06 11:07:15 2009 +0100"
      },
      "message": "sched: fix section mismatch\n\ninit_rootdomain() calls alloc_bootmem_cpumask_var() at system boot,\nso does cpupri_init().\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "68e74568fbe5854952355e942acca51f138096d9",
      "tree": "6263627b3b3c7e249f685ba0fe4d76002e882cd0",
      "parents": [
        "4212823fb459eacc8098dd420bb68ebb9917989d"
      ],
      "author": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Tue Nov 25 02:35:13 2008 +1030"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Mon Nov 24 17:52:22 2008 +0100"
      },
      "message": "sched: convert struct cpupri_vec cpumask_var_t.\n\nImpact: stack usage reduction, (future) size reduction for large NR_CPUS.\n\nDynamically allocating cpumasks (when CONFIG_CPUMASK_OFFSTACK) saves\nspace for small nr_cpu_ids but big CONFIG_NR_CPUS.\n\nThe fact cpupro_init is called both before and after the slab is\navailable makes for an ugly parameter unfortunately.\n\nWe also use cpumask_any_and to get rid of a temporary in cpupri_find.\n\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "6e0534f278199f1e3dd1049b9bc19a7a5b87ada1",
      "tree": "25f4da14ec32927742db9f599ac779b4e83d1763",
      "parents": [
        "f333fdc9098b71e2687e4e9b6349fcb352960d66"
      ],
      "author": {
        "name": "Gregory Haskins",
        "email": "ghaskins@novell.com",
        "time": "Mon May 12 21:21:01 2008 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Fri Jun 06 15:19:28 2008 +0200"
      },
      "message": "sched: use a 2-d bitmap for searching lowest-pri CPU\n\nThe current code use a linear algorithm which causes scaling issues\non larger SMP machines.  This patch replaces that algorithm with a\n2-dimensional bitmap to reduce latencies in the wake-up path.\n\nSigned-off-by: Gregory Haskins \u003cghaskins@novell.com\u003e\nAcked-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n"
    }
  ]
}