)]}'
{
  "log": [
    {
      "commit": "72494504498ff5ac2f086a83473d4dd1ca490bd3",
      "tree": "7f1ceab43de3580235f1a56f2ae865901c09e4d7",
      "parents": [
        "cd96891d48a945ca2011fbeceda73813d6286195",
        "a841f8cef4bb124f0f5563314d0beaf2e1249d72"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Fri Jun 08 14:59:29 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Fri Jun 08 14:59:29 2012 -0700"
      },
      "message": "Merge branch \u0027sched-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull scheduler fixes from Ingo Molnar.\n\n* \u0027sched-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n  sched: Fix the relax_domain_level boot parameter\n  sched: Validate assumptions in sched_init_numa()\n  sched: Always initialize cpu-power\n  sched: Fix domain iteration\n  sched/rt: Fix lockdep annotation within find_lock_lowest_rq()\n  sched/numa: Load balance between remote nodes\n  sched/x86: Calculate booted cores after construction of sibling_mask\n"
    },
    {
      "commit": "cd96891d48a945ca2011fbeceda73813d6286195",
      "tree": "c859442b2364adfa4eec29f516ffbe9c316a81bf",
      "parents": [
        "8f53369b753f5f4c7684c2eb0b592152abb1dd00"
      ],
      "author": {
        "name": "Randy Dunlap",
        "email": "rdunlap@xenotime.net",
        "time": "Fri Jun 08 13:18:33 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Fri Jun 08 14:59:10 2012 -0700"
      },
      "message": "sched/fair: fix lots of kernel-doc warnings\n\nFix lots of new kernel-doc warnings in kernel/sched/fair.c:\n\n  Warning(kernel/sched/fair.c:3625): No description found for parameter \u0027env\u0027\n  Warning(kernel/sched/fair.c:3625): Excess function parameter \u0027sd\u0027 description in \u0027update_sg_lb_stats\u0027\n  Warning(kernel/sched/fair.c:3735): No description found for parameter \u0027env\u0027\n  Warning(kernel/sched/fair.c:3735): Excess function parameter \u0027sd\u0027 description in \u0027update_sd_pick_busiest\u0027\n  Warning(kernel/sched/fair.c:3735): Excess function parameter \u0027this_cpu\u0027 description in \u0027update_sd_pick_busiest\u0027\n  .. more warnings\n\nSigned-off-by: Randy Dunlap \u003crdunlap@xenotime.net\u003e\nCc: Ingo Molnar \u003cmingo@redhat.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "a841f8cef4bb124f0f5563314d0beaf2e1249d72",
      "tree": "b846a9065f021313027f1bbc489743c43ea5869e",
      "parents": [
        "d039ac60800fe8ed8522ec3b9ca796aaf748c18b"
      ],
      "author": {
        "name": "Dimitri Sivanich",
        "email": "sivanich@sgi.com",
        "time": "Tue Jun 05 13:44:36 2012 -0500"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Wed Jun 06 17:07:41 2012 +0200"
      },
      "message": "sched: Fix the relax_domain_level boot parameter\n\nIt does not get processed because sched_domain_level_max is 0 at the\ntime that setup_relax_domain_level() is run.\n\nSimply accept the value as it is, as we don\u0027t know the value of\nsched_domain_level_max until sched domain construction is completed.\n\nFix sched_relax_domain_level in cpuset.  The build_sched_domain() routine calls\nthe set_domain_attribute() routine prior to setting the sd-\u003elevel, however,\nthe set_domain_attribute() routine relies on the sd-\u003elevel to decide whether\nidle load balancing will be off/on.\n\nSigned-off-by: Dimitri Sivanich \u003csivanich@sgi.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/20120605184436.GA15668@sgi.com\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "d039ac60800fe8ed8522ec3b9ca796aaf748c18b",
      "tree": "b00845d9466d1abed5dbfda1e3c68713333460bc",
      "parents": [
        "c3decf0dfbc95736b7c0ab68fa4e5854c4734da9"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Thu May 31 21:20:16 2012 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Wed Jun 06 16:52:30 2012 +0200"
      },
      "message": "sched: Validate assumptions in sched_init_numa()\n\nAdd some code to validate assumptions we\u0027re making and output\nwarnings if they are not.\n\nIf this trigger we want to know about it.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Alex Shi \u003clkml.alex@gmail.com\u003e\nLink: http://lkml.kernel.org/n/tip-6uc3wk5s9udxtdl9cnku0vtt@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "c3decf0dfbc95736b7c0ab68fa4e5854c4734da9",
      "tree": "c21748af2b4c7e4b738cefd2076c1ccc6ed2c664",
      "parents": [
        "c1174876874dcf8986806e4dad3d7d07af20b439"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Thu May 31 12:05:32 2012 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Wed Jun 06 16:52:27 2012 +0200"
      },
      "message": "sched: Always initialize cpu-power\n\nOften when we run into mis-shapen topologies the balance iteration\nfails to update the cpu power properly and we\u0027ll end up in /0 traps.\n\nAlways initialize the cpu-power to a semi-sane value so that we can\nat least boot the machine, even if the load-balancer might not\nfunction correctly.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/n/tip-3lbhyj25sr169ha7z3qht5na@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "c1174876874dcf8986806e4dad3d7d07af20b439",
      "tree": "7e2ea14ba9421bddd63e1810716f1929c753e28b",
      "parents": [
        "7f1b43936f0ecad14770634c021cf4a929aec74d"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Thu May 31 14:47:33 2012 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Wed Jun 06 16:52:26 2012 +0200"
      },
      "message": "sched: Fix domain iteration\n\nWeird topologies can lead to asymmetric domain setups. This needs\nfurther consideration since these setups are typically non-minimal\ntoo.\n\nFor now, make it work by adding an extra mask selecting which CPUs\nare allowed to iterate up.\n\nThe topology that triggered it is the one from David Rientjes:\n\n\t10 20 20 30\n\t20 10 20 20\n\t20 20 10 20\n\t30 20 20 10\n\nresulting in boxes that wouldn\u0027t even boot.\n\nReported-by: David Rientjes \u003crientjes@google.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/n/tip-3p86l9cuaqnxz7uxsojmz5rm@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "7f1b43936f0ecad14770634c021cf4a929aec74d",
      "tree": "ea200fcf70af41839e049c59a2dc922407e7495b",
      "parents": [
        "10717dcde10d09f9fcee53a12a4236af1a82b484"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Thu May 17 21:19:46 2012 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Wed Jun 06 16:52:26 2012 +0200"
      },
      "message": "sched/rt: Fix lockdep annotation within find_lock_lowest_rq()\n\nRoland Dreier reported spurious, hard to trigger lockdep warnings\nwithin the scheduler - without any real lockup.\n\nThis bit gives us the right clue:\n\n\u003e [89945.640512]  [\u003cffffffff8103fa1a\u003e] double_lock_balance+0x5a/0x90\n\u003e [89945.640568]  [\u003cffffffff8104c546\u003e] push_rt_task+0xc6/0x290\n\nif you look at that code you\u0027ll find the double_lock_balance() in\nquestion is the one in find_lock_lowest_rq() [yay for inlining].\n\nNow find_lock_lowest_rq() has a bug.. it fails to use\ndouble_unlock_balance() in one exit path, if this results in a retry in\npush_rt_task() we\u0027ll call double_lock_balance() again, at which point\nwe\u0027ll run into said lockdep confusion.\n\nReported-by: Roland Dreier \u003croland@kernel.org\u003e\nAcked-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1337282386.4281.77.camel@twins\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "10717dcde10d09f9fcee53a12a4236af1a82b484",
      "tree": "ef7fa575d2bec5631201cd72c5764f042650e382",
      "parents": [
        "ceb1cbac8eda66cf0f889def226b4e82f8ff857b"
      ],
      "author": {
        "name": "Alex Shi",
        "email": "alex.shi@intel.com",
        "time": "Wed Jun 06 14:52:51 2012 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Wed Jun 06 16:52:25 2012 +0200"
      },
      "message": "sched/numa: Load balance between remote nodes\n\nCommit cb83b629b (\"sched/numa: Rewrite the CONFIG_NUMA sched\ndomain support\") removed the NODE sched domain and started checking\nif the node distance in SLIT table is farther than REMOTE_DISTANCE,\nif so, it will lose the load balance chance at exec/fork/wake_affine\npoints.\n\nBut actually, even the node distance is farther than REMOTE_DISTANCE.\n\nModern CPUs also has QPI like connections, which ensures that memory\naccess is not too slow between nodes. So the above change in behavior\non NUMA machine causes a performance regression on various benchmarks:\nhackbench, tbench, netperf, oltp, etc.\n\nThis patch will recover the scheduler behavior to old mode on all my\nIntel platforms: NHM EP/EX, WSM EP, SNB EP/EP4S, and thus fixes the\nperfromance regressions. (all of them just have 2 kinds distance, 10, 21)\n\nSigned-off-by: Alex Shi \u003calex.shi@intel.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1338965571-9812-1-git-send-email-alex.shi@intel.com\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "6a4c96eef42f835734a82c6b512abf9881b7c55d",
      "tree": "d7b542e7606e0eaeec8f1160ea2eb37f18fa8d29",
      "parents": [
        "7997a456ef841bb78eb6f881d7cc2c17c2f9b35e"
      ],
      "author": {
        "name": "Kamalesh Babulal",
        "email": "kamalesh@linux.vnet.ibm.com",
        "time": "Wed May 23 14:44:11 2012 +0530"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Wed May 30 14:02:27 2012 +0200"
      },
      "message": "sched: Remove NULL assignment of dattr_cur\n\nRemove explicit NULL assignment of static pointer\ndattr_cur from init_sched_domains().\n\nSigned-off-by: Kamalesh Babulal \u003ckamalesh@linux.vnet.ibm.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/20120523091411.GG5005@linux.vnet.ibm.com\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "7997a456ef841bb78eb6f881d7cc2c17c2f9b35e",
      "tree": "b27fd20b6cec18b19744ae6ad74f201cfab37584",
      "parents": [
        "1292531f6f27af909e713671dd9cc3bcab8114b7"
      ],
      "author": {
        "name": "Hiroshi Shimamoto",
        "email": "h-shimamoto@ct.jp.nec.com",
        "time": "Fri May 25 15:42:47 2012 +0900"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Wed May 30 14:02:27 2012 +0200"
      },
      "message": "sched: Remove the last NULL entry from sched_feat_names\n\nNo need to have the last NULL entry.\n\nSigned-off-by: Hiroshi Shimamoto \u003ch-shimamoto@ct.jp.nec.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/4FBF29E7.5020805@ct.jp.nec.com\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "1292531f6f27af909e713671dd9cc3bcab8114b7",
      "tree": "65f989da9c6bb9596d9b77f9c228f4d63f9b5317",
      "parents": [
        "454c79999f7eaedcdf4c15c449e43902980cbdf5"
      ],
      "author": {
        "name": "Hiroshi Shimamoto",
        "email": "h-shimamoto@ct.jp.nec.com",
        "time": "Fri May 25 15:41:54 2012 +0900"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Wed May 30 14:02:26 2012 +0200"
      },
      "message": "sched: Make sched_feat_names const\n\nThe strings sched_feat_names are never changed.\n\nSigned-off-by: Hiroshi Shimamoto \u003ch-shimamoto@ct.jp.nec.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/4FBF29B2.9030904@ct.jp.nec.com\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "454c79999f7eaedcdf4c15c449e43902980cbdf5",
      "tree": "0da7f5fe6328283a2bf36648bc04e74028d5bfd8",
      "parents": [
        "29baa7478ba47d746e3625c91d3b2afbf46b4312"
      ],
      "author": {
        "name": "Colin Cross",
        "email": "ccross@android.com",
        "time": "Wed May 16 21:34:23 2012 -0700"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Wed May 30 14:02:25 2012 +0200"
      },
      "message": "sched/rt: Fix SCHED_RR across cgroups\n\ntask_tick_rt() has an optimization to only reschedule SCHED_RR tasks\nif they were the only element on their rq.  However, with cgroups\na SCHED_RR task could be the only element on its per-cgroup rq but\nstill be competing with other SCHED_RR tasks in its parent\u0027s\ncgroup.  In this case, the SCHED_RR task in the child cgroup would\nnever yield at the end of its timeslice.  If the child cgroup\nrt_runtime_us was the same as the parent cgroup rt_runtime_us,\nthe task in the parent cgroup would starve completely.\n\nModify task_tick_rt() to check that the task is the only task on its\nrq, and that the each of the scheduling entities of its ancestors\nis also the only entity on its rq.\n\nSigned-off-by: Colin Cross \u003cccross@android.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1337229266-15798-1-git-send-email-ccross@android.com\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "29baa7478ba47d746e3625c91d3b2afbf46b4312",
      "tree": "a902e53baab64d89c07561694d171c4f8f4d1843",
      "parents": [
        "b654f7de41b0e3903ee2b51d3b8db77fe52ce728"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Mon Apr 23 12:11:21 2012 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Wed May 30 14:02:25 2012 +0200"
      },
      "message": "sched: Move nr_cpus_allowed out of \u0027struct sched_rt_entity\u0027\n\nSince nr_cpus_allowed is used outside of sched/rt.c and wants to be\nused outside of there more, move it to a more natural site.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/n/tip-kr61f02y9brwzkh6x53pdptm@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "b654f7de41b0e3903ee2b51d3b8db77fe52ce728",
      "tree": "cdcd46a04d8b59d75045f1d3ae753e4843dbe2c0",
      "parents": [
        "74a5ce20e6eeeb3751340b390e7ac1d1d07bbf55"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Tue May 22 14:04:28 2012 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Wed May 30 14:02:24 2012 +0200"
      },
      "message": "sched: Make sure to not re-read variables after validation\n\nWe could re-read rq-\u003ert_avg after we validated it was smaller than\ntotal, invalidating the check and resulting in an unintended negative.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nLink: http://lkml.kernel.org/r/1337688268.9698.29.camel@twins\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "74a5ce20e6eeeb3751340b390e7ac1d1d07bbf55",
      "tree": "ebbef56666aa11303eafbfb6adbfce56e7a4c605",
      "parents": [
        "2ea45800d8e1c3c51c45a233d6bd6289a297a386"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "peterz@infradead.org",
        "time": "Wed May 23 18:00:43 2012 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Wed May 30 14:02:24 2012 +0200"
      },
      "message": "sched: Fix SD_OVERLAP\n\nSD_OVERLAP exists to allow overlapping groups, overlapping groups\nappear in NUMA topologies that aren\u0027t fully connected.\n\nThe typical result of not fully connected NUMA is that each cpu (or\nrather node) will have different spans for a particular distance.\nHowever due to how sched domains are traversed -- only the first cpu\nin the mask goes one level up -- the next level only cares about the\nspans of the cpus that went up.\n\nDue to this two things were observed to be broken:\n\n - build_overlap_sched_groups() -- since its possible the cpu we\u0027re\n   building the groups for exists in multiple (or all) groups, the\n   selection criteria of the first group didn\u0027t ensure there was a cpu\n   for which is was true that cpumask_first(span) \u003d\u003d cpu. Thus load-\n   balancing would terminate.\n\n - update_group_power() -- assumed that the cpu span of the first\n   group of the domain was covered by all groups of the child domain.\n   The above explains why this isn\u0027t true, so deal with it.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nLink: http://lkml.kernel.org/r/1337788843.9783.14.camel@laptop\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "2ea45800d8e1c3c51c45a233d6bd6289a297a386",
      "tree": "13a6795e66593f355804915f30800f85b0289216",
      "parents": [
        "5aaa0b7a2ed5b12692c9ffb5222182bd558d3146"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Fri May 25 09:26:43 2012 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Wed May 30 14:02:23 2012 +0200"
      },
      "message": "sched: Don\u0027t try allocating memory from offline nodes\n\nAllocators don\u0027t appreciate it when you try and allocate memory from\noffline nodes.\n\nReported-and-tested-by: Tony Luck \u003ctony.luck@intel.com\u003e\nReported-and-tested-by: Anton Blanchard \u003canton@samba.org\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/n/tip-epfc1io9whb7o22bcujf31vn@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "5aaa0b7a2ed5b12692c9ffb5222182bd558d3146",
      "tree": "0334762e9d0e773acf21e61c682f895c25201c89",
      "parents": [
        "9f646389aa7727a2fd8f9ae6337b92af9cfbc264"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Thu May 17 17:15:29 2012 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Wed May 30 14:02:16 2012 +0200"
      },
      "message": "sched/nohz: Fix rq-\u003ecpu_load calculations some more\n\nFollow up on commit 556061b00 (\"sched/nohz: Fix rq-\u003ecpu_load[]\ncalculations\") since while that fixed the busy case it regressed the\nmostly idle case.\n\nAdd a callback from the nohz exit to also age the rq-\u003ecpu_load[]\narray. This closes the hole where either there was no nohz load\nbalance pass during the nohz, or there was a \u0027significant\u0027 amount of\nidle time between the last nohz balance and the nohz exit.\n\nSo we\u0027ll update unconditionally from the tick to not insert any\naccidental 0 load periods while busy, and we try and catch up from\nnohz idle balance and nohz exit. Both these are still prone to missing\na jiffy, but that has always been the case.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: pjt@google.com\nCc: Venkatesh Pallipadi \u003cvenki@google.com\u003e\nLink: http://lkml.kernel.org/n/tip-kt0trz0apodbf84ucjfdbr1a@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "644473e9c60c1ff4f6351fed637a6e5551e3dce7",
      "tree": "10316518bedc735a2c6552886658d69dfd9f1eb0",
      "parents": [
        "fb827ec68446c83e9e8754fa9b55aed27ecc4661",
        "4b06a81f1daee668fbd6de85557bfb36dd36078f"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed May 23 17:42:39 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed May 23 17:42:39 2012 -0700"
      },
      "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace\n\nPull user namespace enhancements from Eric Biederman:\n \"This is a course correction for the user namespace, so that we can\n  reach an inexpensive, maintainable, and reasonably complete\n  implementation.\n\n  Highlights:\n   - Config guards make it impossible to enable the user namespace and\n     code that has not been converted to be user namespace safe.\n\n   - Use of the new kuid_t type ensures the if you somehow get past the\n     config guards the kernel will encounter type errors if you enable\n     user namespaces and attempt to compile in code whose permission\n     checks have not been updated to be user namespace safe.\n\n   - All uids from child user namespaces are mapped into the initial\n     user namespace before they are processed.  Removing the need to add\n     an additional check to see if the user namespace of the compared\n     uids remains the same.\n\n   - With the user namespaces compiled out the performance is as good or\n     better than it is today.\n\n   - For most operations absolutely nothing changes performance or\n     operationally with the user namespace enabled.\n\n   - The worst case performance I could come up with was timing 1\n     billion cache cold stat operations with the user namespace code\n     enabled.  This went from 156s to 164s on my laptop (or 156ns to\n     164ns per stat operation).\n\n   - (uid_t)-1 and (gid_t)-1 are reserved as an internal error value.\n     Most uid/gid setting system calls treat these value specially\n     anyway so attempting to use -1 as a uid would likely cause\n     entertaining failures in userspace.\n\n   - If setuid is called with a uid that can not be mapped setuid fails.\n     I have looked at sendmail, login, ssh and every other program I\n     could think of that would call setuid and they all check for and\n     handle the case where setuid fails.\n\n   - If stat or a similar system call is called from a context in which\n     we can not map a uid we lie and return overflowuid.  The LFS\n     experience suggests not lying and returning an error code might be\n     better, but the historical precedent with uids is different and I\n     can not think of anything that would break by lying about a uid we\n     can\u0027t map.\n\n   - Capabilities are localized to the current user namespace making it\n     safe to give the initial user in a user namespace all capabilities.\n\n  My git tree covers all of the modifications needed to convert the core\n  kernel and enough changes to make a system bootable to runlevel 1.\"\n\nFix up trivial conflicts due to nearby independent changes in fs/stat.c\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (46 commits)\n  userns:  Silence silly gcc warning.\n  cred: use correct cred accessor with regards to rcu read lock\n  userns: Convert the move_pages, and migrate_pages permission checks to use uid_eq\n  userns: Convert cgroup permission checks to use uid_eq\n  userns: Convert tmpfs to use kuid and kgid where appropriate\n  userns: Convert sysfs to use kgid/kuid where appropriate\n  userns: Convert sysctl permission checks to use kuid and kgids.\n  userns: Convert proc to use kuid/kgid where appropriate\n  userns: Convert ext4 to user kuid/kgid where appropriate\n  userns: Convert ext3 to use kuid/kgid where appropriate\n  userns: Convert ext2 to use kuid/kgid where appropriate.\n  userns: Convert devpts to use kuid/kgid where appropriate\n  userns: Convert binary formats to use kuid/kgid where appropriate\n  userns: Add negative depends on entries to avoid building code that is userns unsafe\n  userns: signal remove unnecessary map_cred_ns\n  userns: Teach inode_capable to understand inodes whose uids map to other namespaces.\n  userns: Fail exec for suid and sgid binaries with ids outside our user namespace.\n  userns: Convert stat to return values mapped from kuids and kgids\n  userns: Convert user specfied uids and gids in chown into kuids and kgid\n  userns: Use uid_eq gid_eq helpers when comparing kuids and kgids in the vfs\n  ...\n"
    },
    {
      "commit": "56edab315927d2a5ae6064b9fc083236a6fc278f",
      "tree": "1b00b00033d769d6039448b6d8feffcf86b06088",
      "parents": [
        "3813d4024a75562baf77d3907fb6afbf8f9c8232",
        "5bcdf5e4fee3c45e1281c25e4941f2163cb28c65",
        "ab0cce560ef177bdc7a8f73e9962be9d829a7b2c"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed May 23 12:12:49 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed May 23 12:12:49 2012 -0700"
      },
      "message": "Merge branches \u0027perf-urgent-for-linus\u0027 and \u0027perf-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull perf fixes from Ingo Molnar:\n\n - Leftover AMD PMU driver fix fix from the end of the v3.4\n   stabilization cycle.\n\n - Late tools/perf/ changes that missed the first round:\n    * endianness fixes\n    * event parsing improvements\n    * libtraceevent fixes factored out from trace-cmd\n    * perl scripting engine fixes related to libtraceevent,\n    * testcase improvements\n    * perf inject / pipe mode fixes\n    * plus a kernel side fix\n\n* \u0027perf-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n  perf/x86: Update event scheduling constraints for AMD family 15h models\n\n* \u0027perf-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n  Revert \"sched, perf: Use a single callback into the scheduler\"\n  perf evlist: Show event attribute details\n  perf tools: Bump default sample freq to 4 kHz\n  perf buildid-list: Work better with pipe mode\n  perf tools: Fix piped mode read code\n  perf inject: Fix broken perf inject -b\n  perf tools: rename HEADER_TRACE_INFO to HEADER_TRACING_DATA\n  perf tools: Add union u64_swap type for swapping u64 data\n  perf tools: Carry perf_event_attr bitfield throught different endians\n  perf record: Fix documentation for branch stack sampling\n  perf target: Add cpu flag to sample_type if target has cpu\n  perf tools: Always try to build libtraceevent\n  perf tools: Rename libparsevent to libtraceevent in Makefile\n  perf script: Rename struct event to struct event_format in perl engine\n  perf script: Explicitly handle known default print arg type\n  perf tools: Add hardcoded name term for pmu events\n  perf tools: Separate \u0027mem:\u0027 event scanner bits\n  perf tools: Use allocated list for each parsed event\n  perf tools: Add support for displaying event parser debug info\n  perf test: Move parse event automated tests to separated object\n"
    },
    {
      "commit": "ab0cce560ef177bdc7a8f73e9962be9d829a7b2c",
      "tree": "d9875b21c42862201624eb7d9ea2c36f4ea4035d",
      "parents": [
        "26252ea675663d1bc6747125fcaa2b7cc4ed8a03"
      ],
      "author": {
        "name": "Jiri Olsa",
        "email": "jolsa@redhat.com",
        "time": "Wed May 23 13:13:02 2012 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Wed May 23 17:40:51 2012 +0200"
      },
      "message": "Revert \"sched, perf: Use a single callback into the scheduler\"\n\nThis reverts commit cb04ff9ac424 (\"sched, perf: Use a single\ncallback into the scheduler\").\n\nBefore this change was introduced, the process switch worked\nlike this (wrt. to perf event schedule):\n\n     schedule (prev, next)\n       - schedule out all perf events for prev\n       - switch to next\n       - schedule in all perf events for current (next)\n\nAfter the commit, the process switch looks like:\n\n     schedule (prev, next)\n       - schedule out all perf events for prev\n       - schedule in all perf events for (next)\n       - switch to next\n\nThe problem is, that after we schedule perf events in, the pmu\nis enabled and we can receive events even before we make the\nswitch to next - so \"current\" still being prev process (event\nSAMPLE data are filled based on the value of the \"current\"\nprocess).\n\nThats exactly what we see for test__PERF_RECORD test. We receive\nSAMPLES with PID of the process that our tracee is scheduled\nfrom.\n\nDiscussed with Peter Zijlstra:\n\n \u003e Bah!, yeah I guess reverting is the right thing for now. Sad\n \u003e though.\n \u003e\n \u003e So by having the two hooks we have a black-spot between them\n \u003e where we receive no events at all, this black-spot covers the\n \u003e hand-over of current and we thus don\u0027t receive the \u0027wrong\u0027\n \u003e events.\n \u003e\n \u003e I rather liked we could do away with both that black-spot and\n \u003e clean up the code a little, but apparently people rely on it.\n\nSigned-off-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: acme@redhat.com\nCc: paulus@samba.org\nCc: cjashfor@linux.vnet.ibm.com\nCc: fweisbec@gmail.com\nCc: eranian@google.com\nLink: http://lkml.kernel.org/r/20120523111302.GC1638@m.brq.redhat.com\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "d79ee93de909dfb252279b9a95978bbda9a814a9",
      "tree": "bfccca60fd36259ff4bcc5e78a2c272fbd680065",
      "parents": [
        "2ff2b289a695807e291e1ed9f639d8a3ba5f4254",
        "1c2927f18576d65631d8e0ddd19e1d023183222e"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Tue May 22 18:27:32 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Tue May 22 18:27:32 2012 -0700"
      },
      "message": "Merge branch \u0027sched-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull scheduler changes from Ingo Molnar:\n \"The biggest change is the cleanup/simplification of the load-balancer:\n  instead of the current practice of architectures twiddling scheduler\n  internal data structures and providing the scheduler domains in\n  colorfully inconsistent ways, we now have generic scheduler code in\n  kernel/sched/core.c:sched_init_numa() that looks at the architecture\u0027s\n  node_distance() parameters and (while not fully trusting it) deducts a\n  NUMA topology from it.\n\n  This inevitably changes balancing behavior - hopefully for the better.\n\n  There are various smaller optimizations, cleanups and fixlets as well\"\n\n* \u0027sched-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n  sched: Taint kernel with TAINT_WARN after sleep-in-atomic bug\n  sched: Remove stale power aware scheduling remnants and dysfunctional knobs\n  sched/debug: Fix printing large integers on 32-bit platforms\n  sched/fair: Improve the -\u003egroup_imb logic\n  sched/nohz: Fix rq-\u003ecpu_load[] calculations\n  sched/numa: Don\u0027t scale the imbalance\n  sched/fair: Revert sched-domain iteration breakage\n  sched/x86: Rewrite set_cpu_sibling_map()\n  sched/numa: Fix the new NUMA topology bits\n  sched/numa: Rewrite the CONFIG_NUMA sched domain support\n  sched/fair: Propagate \u0027struct lb_env\u0027 usage into find_busiest_group\n  sched/fair: Add some serialization to the sched_domain load-balance walk\n  sched/fair: Let minimally loaded cpu balance the group\n  sched: Change rq-\u003enr_running to unsigned int\n  x86/numa: Check for nonsensical topologies on real hw as well\n  x86/numa: Hard partition cpu topology masks on node boundaries\n  x86/numa: Allow specifying node_distance() for numa\u003dfake\n  x86/sched: Make mwait_usable() heed to \"idle\u003d\" kernel parameters properly\n  sched: Update documentation and comments\n  sched_rt: Avoid unnecessary dequeue and enqueue of pushable tasks in set_cpus_allowed_rt()\n"
    },
    {
      "commit": "2ff2b289a695807e291e1ed9f639d8a3ba5f4254",
      "tree": "e4b7f44e5cc1582ba2be8aeba221f4841f4c86a6",
      "parents": [
        "88d6ae8dc33af12fe1c7941b1fae2767374046fd",
        "73787190d04a34e6da745da893b3ae8bedde418f"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Tue May 22 18:18:55 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Tue May 22 18:18:55 2012 -0700"
      },
      "message": "Merge branch \u0027perf-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull perf changes from Ingo Molnar:\n \"Lots of changes:\n\n   - (much) improved assembly annotation support in perf report, with\n     jump visualization, searching, navigation, visual output\n     improvements and more.\n\n    - kernel support for AMD IBS PMU hardware features.  Notably \u0027perf\n      record -e cycles:p\u0027 and \u0027perf top -e cycles:p\u0027 should work without\n      skid now, like PEBS does on the Intel side, because it takes\n      advantage of IBS transparently.\n\n    - the libtracevents library: it is the first step towards unifying\n      tracing tooling and perf, and it also gives a tracing library for\n      external tools like powertop to rely on.\n\n    - infrastructure: various improvements and refactoring of the UI\n      modules and related code\n\n    - infrastructure: cleanup and simplification of the profiling\n      targets code (--uid, --pid, --tid, --cpu, --all-cpus, etc.)\n\n    - tons of robustness fixes all around\n\n    - various ftrace updates: speedups, cleanups, robustness\n      improvements.\n\n    - typing \u0027make\u0027 in tools/ will now give you a menu of projects to\n      build and a short help text to explain what each does.\n\n    - ... and lots of other changes I forgot to list.\n\n  The perf record make bzImage + perf report regression you reported\n  should be fixed.\"\n\n* \u0027perf-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (166 commits)\n  tracing: Remove kernel_lock annotations\n  tracing: Fix initial buffer_size_kb state\n  ring-buffer: Merge separate resize loops\n  perf evsel: Create events initially disabled -- again\n  perf tools: Split term type into value type and term type\n  perf hists: Fix callchain ip printf format\n  perf target: Add uses_mmap field\n  ftrace: Remove selecting FRAME_POINTER with FUNCTION_TRACER\n  ftrace/x86: Have x86 ftrace use the ftrace_modify_all_code()\n  ftrace: Make ftrace_modify_all_code() global for archs to use\n  ftrace: Return record ip addr for ftrace_location()\n  ftrace: Consolidate ftrace_location() and ftrace_text_reserved()\n  ftrace: Speed up search by skipping pages by address\n  ftrace: Remove extra helper functions\n  ftrace: Sort all function addresses, not just per page\n  tracing: change CPU ring buffer state from tracing_cpumask\n  tracing: Check return value of tracing_dentry_percpu()\n  ring-buffer: Reset head page before running self test\n  ring-buffer: Add integrity check at end of iter read\n  ring-buffer: Make addition of pages in ring buffer atomic\n  ...\n"
    },
    {
      "commit": "88d6ae8dc33af12fe1c7941b1fae2767374046fd",
      "tree": "8f17415c0722b0a4d7511ac170cfb4e3802e1ad2",
      "parents": [
        "f5c101892fbd3d2f6d2729bc7eb7b3f6c31dbddd",
        "0d4dde1ac9a5af74ac76c6ab90557d1ae7b8f5d8"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Tue May 22 17:40:19 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Tue May 22 17:40:19 2012 -0700"
      },
      "message": "Merge branch \u0027for-3.5\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup\n\nPull cgroup updates from Tejun Heo:\n \"cgroup file type addition / removal is updated so that file types are\n  added and removed instead of individual files so that dynamic file\n  type addition / removal can be implemented by cgroup and used by\n  controllers.  blkio controller changes which will come through block\n  tree are dependent on this.  Other changes include res_counter cleanup\n  and disallowing kthread / PF_THREAD_BOUND threads to be attached to\n  non-root cgroups.\n\n  There\u0027s a reported bug with the file type addition / removal handling\n  which can lead to oops on cgroup umount.  The issue is being looked\n  into.  It shouldn\u0027t cause problems for most setups and isn\u0027t a\n  security concern.\"\n\nFix up trivial conflict in Documentation/feature-removal-schedule.txt\n\n* \u0027for-3.5\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: (21 commits)\n  res_counter: Account max_usage when calling res_counter_charge_nofail()\n  res_counter: Merge res_counter_charge and res_counter_charge_nofail\n  cgroups: disallow attaching kthreadd or PF_THREAD_BOUND threads\n  cgroup: remove cgroup_subsys-\u003epopulate()\n  cgroup: get rid of populate for memcg\n  cgroup: pass struct mem_cgroup instead of struct cgroup to socket memcg\n  cgroup: make css-\u003erefcnt clearing on cgroup removal optional\n  cgroup: use negative bias on css-\u003erefcnt to block css_tryget()\n  cgroup: implement cgroup_rm_cftypes()\n  cgroup: introduce struct cfent\n  cgroup: relocate __d_cgrp() and __d_cft()\n  cgroup: remove cgroup_add_file[s]()\n  cgroup: convert memcg controller to the new cftype interface\n  memcg: always create memsw files if CONFIG_CGROUP_MEM_RES_CTLR_SWAP\n  cgroup: convert all non-memcg controllers to the new cftype interface\n  cgroup: relocate cftype and cgroup_subsys definitions in controllers\n  cgroup: merge cft_release_agent cftype array into the base files array\n  cgroup: implement cgroup_add_cftypes() and friends\n  cgroup: build list of all cgroups under a given cgroupfs_root\n  cgroup: move cgroup_clear_directory() call out of cgroup_populate_dir()\n  ...\n"
    },
    {
      "commit": "bf67f3a5c456a18f2e8d062f7e88506ef2cd9837",
      "tree": "2a2324b2572162059307db82f9238eeb25673a77",
      "parents": [
        "226da0dbc84ed97f448523e2a4cb91c27fa68ed9",
        "203dacbdca977bedaba61ad2fca75d934060a5d5"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Mon May 21 19:43:57 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Mon May 21 19:43:57 2012 -0700"
      },
      "message": "Merge branch \u0027smp-hotplug-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull smp hotplug cleanups from Thomas Gleixner:\n \"This series is merily a cleanup of code copied around in arch/* and\n  not changing any of the real cpu hotplug horrors yet.  I wish I\u0027d had\n  something more substantial for 3.5, but I underestimated the lurking\n  horror...\"\n\nFix up trivial conflicts in arch/{arm,sparc,x86}/Kconfig and\narch/sparc/include/asm/thread_info_32.h\n\n* \u0027smp-hotplug-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (79 commits)\n  um: Remove leftover declaration of alloc_task_struct_node()\n  task_allocator: Use config switches instead of magic defines\n  sparc: Use common threadinfo allocator\n  score: Use common threadinfo allocator\n  sh-use-common-threadinfo-allocator\n  mn10300: Use common threadinfo allocator\n  powerpc: Use common threadinfo allocator\n  mips: Use common threadinfo allocator\n  hexagon: Use common threadinfo allocator\n  m32r: Use common threadinfo allocator\n  frv: Use common threadinfo allocator\n  cris: Use common threadinfo allocator\n  x86: Use common threadinfo allocator\n  c6x: Use common threadinfo allocator\n  fork: Provide kmemcache based thread_info allocator\n  tile: Use common threadinfo allocator\n  fork: Provide weak arch_release_[task_struct|thread_info] functions\n  fork: Move thread info gfp flags to header\n  fork: Remove the weak insanity\n  sh: Remove cpu_idle_wait()\n  ...\n"
    },
    {
      "commit": "226da0dbc84ed97f448523e2a4cb91c27fa68ed9",
      "tree": "3969a9f612cd5596747ecde2066e65eacbab7d2e",
      "parents": [
        "5ec29e3149d800e6db83c1b6ff441daf319cbbe2",
        "2d84e023cb5ec00403ff5d447533c6fd58fcc7ff"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Mon May 21 19:26:51 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Mon May 21 19:26:51 2012 -0700"
      },
      "message": "Merge branch \u0027core-rcu-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull RCU changes from Ingo Molnar:\n \"This is the v3.5 RCU tree from Paul E.  McKenney:\n\n 1) A set of improvements and fixes to the RCU_FAST_NO_HZ feature (with\n    more on the way for 3.6).  Posted to LKML:\n       https://lkml.org/lkml/2012/4/23/324 (commits 1-3 and 5),\n       https://lkml.org/lkml/2012/4/16/611 (commit 4),\n       https://lkml.org/lkml/2012/4/30/390 (commit 6), and\n       https://lkml.org/lkml/2012/5/4/410 (commit 7, combined with\n       the other commits for the convenience of the tester).\n\n 2) Changes to make rcu_barrier() avoid disrupting execution of CPUs\n    that have no RCU callbacks.  Posted to LKML:\n       https://lkml.org/lkml/2012/4/23/322.\n\n 3) A couple of commits that improve the efficiency of the interaction\n    between preemptible RCU and the scheduler, these two being all that\n    survived an abortive attempt to allow preemptible RCU\u0027s\n    __rcu_read_lock() to be inlined.  The full set was posted to LKML at\n    https://lkml.org/lkml/2012/4/14/143, and the first and third patches\n    of that set remain.\n\n 4) Lai Jiangshan\u0027s algorithmic implementation of SRCU, which includes\n    call_srcu() and srcu_barrier().  A major feature of this new\n    implementation is that synchronize_srcu() no longer disturbs the\n    execution of other CPUs.  This work is based on earlier\n    implementations by Peter Zijlstra and Paul E.  McKenney.  Posted to\n    LKML: https://lkml.org/lkml/2012/2/22/82.\n\n 5) A number of miscellaneous bug fixes and improvements which were\n    posted to LKML at: https://lkml.org/lkml/2012/4/23/353 with\n    subsequent updates posted to LKML.\"\n\n* \u0027core-rcu-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (32 commits)\n  rcu: Make rcu_barrier() less disruptive\n  rcu: Explicitly initialize RCU_FAST_NO_HZ per-CPU variables\n  rcu: Make RCU_FAST_NO_HZ handle timer migration\n  rcu: Update RCU maintainership\n  rcu: Make exit_rcu() more precise and consolidate\n  rcu: Move PREEMPT_RCU preemption to switch_to() invocation\n  rcu: Ensure that RCU_FAST_NO_HZ timers expire on correct CPU\n  rcu: Add rcutorture test for call_srcu()\n  rcu: Implement per-domain single-threaded call_srcu() state machine\n  rcu: Use single value to handle expedited SRCU grace periods\n  rcu: Improve srcu_readers_active_idx()\u0027s cache locality\n  rcu: Remove unused srcu_barrier()\n  rcu: Implement a variant of Peter\u0027s SRCU algorithm\n  rcu: Improve SRCU\u0027s wait_idx() comments\n  rcu: Flip -\u003ecompleted only once per SRCU grace period\n  rcu: Increment upper bit only for srcu_read_lock()\n  rcu: Remove fast check path from __synchronize_srcu()\n  rcu: Direct algorithmic SRCU implementation\n  rcu: Introduce rcutorture testing for rcu_barrier()\n  timer: Fix mod_timer_pinned() header comment\n  ...\n"
    },
    {
      "commit": "16ee6576e25b83806d26eb771138249fcfb5eddc",
      "tree": "7c717b80f28b5c59ba673dc00f2ca9bd0fc068d4",
      "parents": [
        "16fa7e8200fb9066b77a3f27cbed8e4a9fc71998",
        "9b63776fa3ca96c4ecda76f6fa947b7b0add66ac"
      ],
      "author": {
        "name": "Arnaldo Carvalho de Melo",
        "email": "acme@redhat.com",
        "time": "Fri May 18 13:13:33 2012 -0300"
      },
      "committer": {
        "name": "Arnaldo Carvalho de Melo",
        "email": "acme@redhat.com",
        "time": "Fri May 18 13:13:33 2012 -0300"
      },
      "message": "Merge remote-tracking branch \u0027tip/perf/urgent\u0027 into perf/core\n\nMerge reason: We are going to queue up a dependent patch:\n\n\"perf tools: Move parse event automated tests to separated object\"\n\nThat depends on:\n\ncommit e7c72d8\nperf tools: Add \u0027G\u0027 and \u0027H\u0027 modifiers to event parsing\n\nConflicts:\n\ttools/perf/builtin-stat.c\n\nConflicted with the recent \u0027perf_target\u0027 patches when checking the\nresult of perf_evsel open routines to see if a retry is needed to cope\nwith older kernels where the exclude guest/host perf_event_attr bits\nwere not used.\n\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n"
    },
    {
      "commit": "1c2927f18576d65631d8e0ddd19e1d023183222e",
      "tree": "f085b43bde0e8f547eabcd51bdfcbff5ab332c2a",
      "parents": [
        "8e7fbcbc22c12414bcc9dfdd683637f58fb32759"
      ],
      "author": {
        "name": "Konstantin Khlebnikov",
        "email": "khlebnikov@openvz.org",
        "time": "Thu May 10 16:20:04 2012 +0400"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Fri May 18 13:07:40 2012 +0200"
      },
      "message": "sched: Taint kernel with TAINT_WARN after sleep-in-atomic bug\n\nUsually sleep-in-atomic bugs are followed by dozens other warnings.\nThis patch should help to figure out original source of problem.\n\nSigned-off-by: Konstantin Khlebnikov \u003ckhlebnikov@openvz.org\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/20120510122004.4873.12726.stgit@zurg\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "8e7fbcbc22c12414bcc9dfdd683637f58fb32759",
      "tree": "a438021ddeadddd8f0745293aeb8c80dbe3c999c",
      "parents": [
        "fac536f7e4927f34d480dc066f3a578c743b8f0e"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "peterz@infradead.org",
        "time": "Mon Jan 09 11:28:35 2012 +0100"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Thu May 17 13:48:56 2012 +0200"
      },
      "message": "sched: Remove stale power aware scheduling remnants and dysfunctional knobs\n\nIt\u0027s been broken forever (i.e. it\u0027s not scheduling in a power\naware fashion), as reported by Suresh and others sending\npatches, and nobody cares enough to fix it properly ...\nso remove it to make space free for something better.\n\nThere\u0027s various problems with the code as it stands today, first\nand foremost the user interface which is bound to topology\nlevels and has multiple values per level. This results in a\nstate explosion which the administrator or distro needs to\nmaster and almost nobody does.\n\nFurthermore large configuration state spaces aren\u0027t good, it\nmeans the thing doesn\u0027t just work right because it\u0027s either\nunder so many impossibe to meet constraints, or even if\nthere\u0027s an achievable state workloads have to be aware of\nit precisely and can never meet it for dynamic workloads.\n\nSo pushing this kind of decision to user-space was a bad idea\neven with a single knob - it\u0027s exponentially worse with knobs\non every node of the topology.\n\nThere is a proposal to replace the user interface with a single\n3 state knob:\n\n sched_balance_policy :\u003d { performance, power, auto }\n\nwhere \u0027auto\u0027 would be the preferred default which looks at things\nlike Battery/AC mode and possible cpufreq state or whatever the hw\nexposes to show us power use expectations - but there\u0027s been no\nprogress on it in the past many months.\n\nAside from that, the actual implementation of the various knobs\nis known to be broken. There have been sporadic attempts at\nfixing things but these always stop short of reaching a mergable\nstate.\n\nTherefore this wholesale removal with the hopes of spurring\npeople who care to come forward once again and work on a\ncoherent replacement.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Suresh Siddha \u003csuresh.b.siddha@intel.com\u003e\nCc: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nCc: Vincent Guittot \u003cvincent.guittot@linaro.org\u003e\nCc: Vaidyanathan Srinivasan \u003csvaidy@linux.vnet.ibm.com\u003e\nCc: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nLink: http://lkml.kernel.org/r/1326104915.2442.53.camel@twins\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "fac536f7e4927f34d480dc066f3a578c743b8f0e",
      "tree": "13c8ecc3ea9132dcad74412778a6e84112083012",
      "parents": [
        "13e099d2f77e1da3e4046860c48d956588633613",
        "30b4e9eb783d94e9f5d503b15eb31720679ae1c7"
      ],
      "author": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Thu May 17 12:17:10 2012 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Thu May 17 12:17:12 2012 +0200"
      },
      "message": "Merge branch \u0027sched/urgent\u0027 into sched/core\n\nMerge reason: bring together all the pending scheduler bits,\n              for the sched/numa changes.\n\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "13e099d2f77e1da3e4046860c48d956588633613",
      "tree": "f538267ca46bd3647000140f6888045c5114bc0f",
      "parents": [
        "e44bc5c5d00ee9b56dd87db47ed827d52948b9fa"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Mon May 14 14:34:00 2012 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Mon May 14 15:05:28 2012 +0200"
      },
      "message": "sched/debug: Fix printing large integers on 32-bit platforms\n\nSome numbers like nr_running and nr_uninterruptible are fundamentally\nunsigned since its impossible to have a negative amount of tasks, yet\nwe still print them as signed to easily recognise the underflow\ncondition.\n\nrq-\u003enr_uninterruptible has \u0027special\u0027 accounting and can in fact very\neasily become negative on a per-cpu basis.\n\nIt was noted that since the P() macro assumes things are long long and\nthe promotion of unsigned \u0027int/long\u0027 to long long on 32bit doesn\u0027t\nsign extend we print silly large numbers instead of the easier to read\nsigned numbers.\n\nTherefore extend the P() macro to not require the sign extention.\n\nReported-by: Diwakar Tundlam \u003cdtundlam@nvidia.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/n/tip-gk5tm8t2n4ix2vkpns42uqqp@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "e44bc5c5d00ee9b56dd87db47ed827d52948b9fa",
      "tree": "e0e5c30591d8bae335a101458f311e5972175a69",
      "parents": [
        "556061b00c9f2fd6a5524b6bde823ef12f299ecf"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Fri May 11 00:22:12 2012 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Mon May 14 15:05:28 2012 +0200"
      },
      "message": "sched/fair: Improve the -\u003egroup_imb logic\n\nGroup imbalance is meant to deal with situations where affinity masks\nand sched domains don\u0027t align well, such as 3 cpus from one group and\n6 from another. In this case the domain based balancer will want to\nput an equal amount of tasks on each side even though they don\u0027t have\nequal cpus.\n\nCurrently group_imb is set whenever two cpus of a group have a weight\ndifference of at least one avg task and the heaviest cpu has at least\ntwo tasks. A group with imbalance set will always be picked as busiest\nand a balance pass will be forced.\n\nThe problem is that even if there are no affinity masks this stuff can\ntrigger and cause weird balancing decisions, eg. the observed\nbehaviour was that of 6 cpus, 5 had 2 and 1 had 3 tasks, due to the\ndifference of 1 avg load (they all had the same weight) and nr_running\nbeing \u003e1 the group_imbalance logic triggered and did the weird thing\nof pulling more load instead of trying to move the 1 excess task to\nthe other domain of 6 cpus that had 5 cpu with 2 tasks and 1 cpu with\n1 task.\n\nCurb the group_imbalance stuff by making the nr_running condition\nweaker by also tracking the min_nr_running and using the difference in\nnr_running over the set instead of the absolute max nr_running.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/n/tip-9s7dedozxo8kjsb9kqlrukkf@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "556061b00c9f2fd6a5524b6bde823ef12f299ecf",
      "tree": "087891d70dbcd97cd23ac3eb92fad6a905c0f527",
      "parents": [
        "870a0bb5d636156502769233d02a0d5791d4366a"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Fri May 11 17:31:26 2012 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Mon May 14 15:05:27 2012 +0200"
      },
      "message": "sched/nohz: Fix rq-\u003ecpu_load[] calculations\n\nWhile investigating why the load-balancer did funny I found that the\nrq-\u003ecpu_load[] tables were completely screwy.. a bit more digging\nrevealed that the updates that got through were missing ticks followed\nby a catchup of 2 ticks.\n\nThe catchup assumes the cpu was idle during that time (since only nohz\ncan cause missed ticks and the machine is idle etc..) this means that\nesp. the higher indices were significantly lower than they ought to\nbe.\n\nThe reason for this is that its not correct to compare against jiffies\non every jiffy on any other cpu than the cpu that updates jiffies.\n\nThis patch cludges around it by only doing the catch-up stuff from\nnohz_idle_balance() and doing the regular stuff unconditionally from\nthe tick.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: pjt@google.com\nCc: Venkatesh Pallipadi \u003cvenki@google.com\u003e\nLink: http://lkml.kernel.org/n/tip-tp4kj18xdd5aj4vvj0qg55s2@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "870a0bb5d636156502769233d02a0d5791d4366a",
      "tree": "c008809e111a3487af2c27f8c105200950f11671",
      "parents": [
        "04f733b4afac5dc93ae9b0a8703c60b87def491e"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Fri May 11 00:26:27 2012 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Mon May 14 15:05:26 2012 +0200"
      },
      "message": "sched/numa: Don\u0027t scale the imbalance\n\nIt\u0027s far too easy to get ridiculously large imbalance pct when you\nscale it like that. Use a fixed 125% for now.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/n/tip-zsriaft1dv7hhboyrpvqjy6s@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "04f733b4afac5dc93ae9b0a8703c60b87def491e",
      "tree": "7ef166c4d1c1dffdc993efbf3791d0f745f5a80c",
      "parents": [
        "316ad248307fba13be40f01e92a22b89457c32bc"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Fri May 11 00:12:02 2012 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Mon May 14 15:05:26 2012 +0200"
      },
      "message": "sched/fair: Revert sched-domain iteration breakage\n\nPatches c22402a2f (\"sched/fair: Let minimally loaded cpu balance the\ngroup\") and 0ce90475 (\"sched/fair: Add some serialization to the\nsched_domain load-balance walk\") are horribly broken so revert them.\n\nThe problem is that while it sounds good to have the minimally loaded\ncpu do the pulling of more load, the way we walk the domains there is\nabsolutely no guarantee this cpu will actually get to the domain. In\nfact its very likely it wont. Therefore the higher up the tree we get,\nthe less likely it is we\u0027ll balance at all.\n\nThe first of mask always walks up, while sucky in that it accumulates\nload on the first cpu and needs extra passes to spread it out at least\nguarantees a cpu gets up that far and load-balancing happens at all.\n\nSince its now always the first and idle cpus should always be able to\nbalance so they get a task as fast as possible we can also do away\nwith the added serialization.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/n/tip-rpuhs5s56aiv1aw7khv9zkw6@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "dd7d8634e619b715a537402672d1383535ff4c54",
      "tree": "078f8c8c7a02dbee4d569569aa4759d9fcf1201a",
      "parents": [
        "cb83b629bae0327cf9f44f096adc38d150ceb913"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Fri May 11 00:56:20 2012 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Mon May 14 15:05:25 2012 +0200"
      },
      "message": "sched/numa: Fix the new NUMA topology bits\n\nThere\u0027s no need to convert a node number to a node number by\npretending its a cpu number..\n\nReported-by: Yinghai Lu \u003cyinghai@kernel.org\u003e\nReported-and-Tested-by: Greg Pearson \u003cgreg.pearson@hp.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/n/tip-0sqhrht34phowgclj12dgk8h@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "2d84e023cb5ec00403ff5d447533c6fd58fcc7ff",
      "tree": "cb10d9a568ebb4be8593821a6f205efedf2f4ddd",
      "parents": [
        "9ff00d58a915b6747ba2e843ab2d04c712b4dc32",
        "dc36be4419311fd57becdf54bfeef6bd04a6741d"
      ],
      "author": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Mon May 14 08:41:20 2012 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Mon May 14 08:41:46 2012 +0200"
      },
      "message": "Merge branch \u0027rcu/next\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu\n\nPull the v3.5 RCU tree from Paul E. McKenney:\n\n 1)\tA set of improvements and fixes to the RCU_FAST_NO_HZ feature\n\t(with more on the way for 3.6).  Posted to LKML:\n\thttps://lkml.org/lkml/2012/4/23/324 (commits 1-3 and 5),\n\thttps://lkml.org/lkml/2012/4/16/611 (commit 4),\n\thttps://lkml.org/lkml/2012/4/30/390 (commit 6), and\n\thttps://lkml.org/lkml/2012/5/4/410 (commit 7, combined with\n\tthe other commits for the convenience of the tester).\n\n 2)\tChanges to make rcu_barrier() avoid disrupting execution of CPUs\n\tthat have no RCU callbacks.  Posted to LKML:\n\thttps://lkml.org/lkml/2012/4/23/322.\n\n 3)\tA couple of commits that improve the efficiency of the interaction\n\tbetween preemptible RCU and the scheduler, these two being all\n\tthat survived an abortive attempt to allow preemptible RCU\u0027s\n\t__rcu_read_lock() to be inlined.  The full set was posted to\n\tLKML at https://lkml.org/lkml/2012/4/14/143, and the first and\n\tthird patches of that set remain.\n\n 4)\tLai Jiangshan\u0027s algorithmic implementation of SRCU, which includes\n\tcall_srcu() and srcu_barrier().  A major feature of this new\n\timplementation is that synchronize_srcu() no longer disturbs\n\tthe execution of other CPUs.  This work is based on earlier\n\timplementations by Peter Zijlstra and Paul E. McKenney.  Posted to\n\tLKML: https://lkml.org/lkml/2012/2/22/82.\n\n 5)\tA number of miscellaneous bug fixes and improvements which were\n\tposted to LKML at: https://lkml.org/lkml/2012/4/23/353 with\n\tsubsequent updates posted to LKML.\n\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "cb04ff9ac424d0e689d9b612e9f73cb443ab4b7e",
      "tree": "7335f4ca82dc0366ffbf9dc8de5396259213435a",
      "parents": [
        "8b1e13638d465863572c8207a5cfceeef0cf0441"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Tue May 08 18:56:04 2012 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Wed May 09 15:23:17 2012 +0200"
      },
      "message": "sched, perf: Use a single callback into the scheduler\n\nWe can easily use a single callback for both sched-in and sched-out. This\nreduces the code footprint in the scheduler path as well as removes\nthe PMU black spot otherwise present between the out and in callback.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/n/tip-o56ajxp1edwqg6x9d31wb805@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "cb83b629bae0327cf9f44f096adc38d150ceb913",
      "tree": "13f7da07ee150a97c21aace57eaa817a30df9539",
      "parents": [
        "bd939f45da24e25e08a8f5c993c50b1afada0fef"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Tue Apr 17 15:49:36 2012 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Wed May 09 15:00:55 2012 +0200"
      },
      "message": "sched/numa: Rewrite the CONFIG_NUMA sched domain support\n\nThe current code groups up to 16 nodes in a level and then puts an\nALLNODES domain spanning the entire tree on top of that. This doesn\u0027t\nreflect the numa topology and esp for the smaller not-fully-connected\nmachines out there today this might make a difference.\n\nTherefore, build a proper numa topology based on node_distance().\n\nSince there\u0027s no fixed numa layers anymore, the static SD_NODE_INIT\nand SD_ALLNODES_INIT aren\u0027t usable anymore, the new code tries to\nconstruct something similar and scales some values either on the\nnumber of cpus in the domain and/or the node_distance() ratio.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Anton Blanchard \u003canton@samba.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: Chris Metcalf \u003ccmetcalf@tilera.com\u003e\nCc: David Howells \u003cdhowells@redhat.com\u003e\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nCc: Fenghua Yu \u003cfenghua.yu@intel.com\u003e\nCc: \"H. Peter Anvin\" \u003chpa@zytor.com\u003e\nCc: Ivan Kokshaysky \u003cink@jurassic.park.msu.ru\u003e\nCc: linux-alpha@vger.kernel.org\nCc: linux-ia64@vger.kernel.org\nCc: linux-kernel@vger.kernel.org\nCc: linux-mips@linux-mips.org\nCc: linuxppc-dev@lists.ozlabs.org\nCc: linux-sh@vger.kernel.org\nCc: Matt Turner \u003cmattst88@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: Richard Henderson \u003crth@twiddle.net\u003e\nCc: sparclinux@vger.kernel.org\nCc: Tony Luck \u003ctony.luck@intel.com\u003e\nCc: x86@kernel.org\nCc: Dimitri Sivanich \u003csivanich@sgi.com\u003e\nCc: Greg Pearson \u003cgreg.pearson@hp.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: bob.picco@oracle.com\nCc: chris.mason@oracle.com\nCc: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nLink: http://lkml.kernel.org/n/tip-r74n3n8hhuc2ynbrnp3vt954@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "bd939f45da24e25e08a8f5c993c50b1afada0fef",
      "tree": "a103544f605e5e0e3f1c20a1fc9fffcaeba1a33c",
      "parents": [
        "0ce90475dcdbe90affc218e9688c8401e468e84d"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Wed May 02 14:20:37 2012 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Wed May 09 15:00:54 2012 +0200"
      },
      "message": "sched/fair: Propagate \u0027struct lb_env\u0027 usage into find_busiest_group\n\nMore function argument passing reduction.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/n/tip-v66ivjfqdiqdso01lqgqx6qf@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "0ce90475dcdbe90affc218e9688c8401e468e84d",
      "tree": "30771f6a6791af0214c5e7d57958f6395f3b97f5",
      "parents": [
        "c22402a2f76e88b04b7a8b6c0597ad9ba6fd71de"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Wed Apr 25 00:30:36 2012 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Wed May 09 15:00:53 2012 +0200"
      },
      "message": "sched/fair: Add some serialization to the sched_domain load-balance walk\n\nSince the sched_domain walk is completely unserialized (!SD_SERIALIZE)\nit is possible that multiple cpus in the group get elected to do the\nnext level. Avoid this by adding some serialization.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/n/tip-vqh9ai6s0ewmeakjz80w4qz6@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "c22402a2f76e88b04b7a8b6c0597ad9ba6fd71de",
      "tree": "dba3b3dc85c1290310968ce78d36ccb9fd670366",
      "parents": [
        "c82513e513556a04f81aa511cd890acd23349c48"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Fri Apr 20 16:57:22 2012 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Wed May 09 15:00:51 2012 +0200"
      },
      "message": "sched/fair: Let minimally loaded cpu balance the group\n\nCurrently we let the leftmost (or first idle) cpu ascend the\nsched_domain tree and perform load-balancing. The result is that the\nbusiest cpu in the group might be performing this function and pull\nmore load to itself. The next load balance pass will then try to\nequalize this again.\n\nChange this to pick the least loaded cpu to perform higher domain\nbalancing.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/n/tip-v8zlrmgmkne3bkcy9dej1fvm@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "c82513e513556a04f81aa511cd890acd23349c48",
      "tree": "dbccd379fffd75cd87513e4dd0e91ac597628382",
      "parents": [
        "ad7687dde8780a0d618a3e3b5a62bb383696fc22"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Thu Apr 26 13:12:27 2012 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Wed May 09 15:00:49 2012 +0200"
      },
      "message": "sched: Change rq-\u003enr_running to unsigned int\n\nSince there\u0027s a PID space limit of 30bits (see\nfutex.h:FUTEX_TID_MASK) and allocating that many tasks (assuming a\nlower bound of 2 pages per task) would still take 8T of memory it\nseems reasonable to say that unsigned int is sufficient for\nrq-\u003enr_running.\n\nWhen we do get anywhere near that amount of tasks I suspect other\nthings would go funny, load-balancer load computations would really\nneed to be hoisted to 128bit etc.\n\nSo save a few bytes and convert rq-\u003enr_running and friends to\nunsigned int.\n\nSuggested-by: Ingo Molnar \u003cmingo@kernel.org\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/n/tip-y3tvyszjdmbibade5bw8zl81@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "30b4e9eb783d94e9f5d503b15eb31720679ae1c7",
      "tree": "1369b75e45c5eaa1763a87f4e3ce03a9b32737e8",
      "parents": [
        "febb72a6e4cc6c8cffcc1ea649a3fb364f1ea432"
      ],
      "author": {
        "name": "Igor Mammedov",
        "email": "imammedo@redhat.com",
        "time": "Wed May 09 12:38:28 2012 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Wed May 09 12:27:35 2012 +0200"
      },
      "message": "sched: Fix KVM and ia64 boot crash due to sched_groups circular linked list assumption\n\nIf we have one cpu that failed to boot and boot cpu gave up on\nwaiting for it and then another cpu is being booted, kernel\nmight crash with following OOPS:\n\n   BUG: unable to handle kernel NULL pointer dereference at 0000000000000018\n   IP: [\u003cffffffff812c3630\u003e] __bitmap_weight+0x30/0x80\n   Call Trace:\n       [\u003cffffffff8108b9b6\u003e] build_sched_domains+0x7b6/0xa50\n\nThe crash happens in init_sched_groups_power() that expects\nsched_groups to be circular linked list. However it is not\nalways true, since sched_groups preallocated in __sdt_alloc are\ninitialized in build_sched_groups and it may exit early\n\n        if (cpu !\u003d cpumask_first(sched_domain_span(sd)))\n                return 0;\n\nwithout initializing sd-\u003egroups-\u003enext field.\n\nFix bug by initializing next field right after sched_group was\nallocated.\n\nAlso-Reported-by: Jiang Liu \u003cliuj97@gmail.com\u003e\nSigned-off-by: Igor Mammedov \u003cimammedo@redhat.com\u003e\nCc: a.p.zijlstra@chello.nl\nCc: pjt@google.com\nCc: seto.hidetoshi@jp.fujitsu.com\nLink: http://lkml.kernel.org/r/1336559908-32533-1-git-send-email-imammedo@redhat.com\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "67ba5293f705eb1d1b98710e5ccb0f615936a6fc",
      "tree": "cdb4cfd94033b5c0f42eeb4de368802049880a12",
      "parents": [
        "86627c93b35082f7a0e4d3111546943984b932c7",
        "d909a81b198a397593495508c4a5755fe95552fb"
      ],
      "author": {
        "name": "Thomas Gleixner",
        "email": "tglx@linutronix.de",
        "time": "Tue May 08 14:07:48 2012 +0200"
      },
      "committer": {
        "name": "Thomas Gleixner",
        "email": "tglx@linutronix.de",
        "time": "Tue May 08 14:07:48 2012 +0200"
      },
      "message": "Merge branch \u0027smp/threadalloc\u0027 into smp/hotplug\n\nReason: Pull in the separate branch which was created so arch/tile can\nbase further work on it.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n"
    },
    {
      "commit": "489a71b029cd94e3b0132795146e8be3a87bf3fa",
      "tree": "84054064a9dd96372f94257b2e7d809ed6fbc562",
      "parents": [
        "436281c9a110ff16c1fb396add5dd944ee92cf36"
      ],
      "author": {
        "name": "Hiroshi Shimamoto",
        "email": "h-shimamoto@ct.jp.nec.com",
        "time": "Mon Apr 02 17:00:44 2012 +0900"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Mon May 07 15:04:18 2012 +0200"
      },
      "message": "sched: Update documentation and comments\n\nChange sched_*.c to sched/*.c in documentation and comments.\n\nSigned-off-by: Hiroshi Shimamoto \u003ch-shimamoto@ct.jp.nec.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/4F795CAC.9080206@ct.jp.nec.com\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "436281c9a110ff16c1fb396add5dd944ee92cf36",
      "tree": "afda86db9e89d41ca49a8311673b994a82d16d42",
      "parents": [
        "4cbb62148cd686c2d3618861deb15eeb83744405",
        "febb72a6e4cc6c8cffcc1ea649a3fb364f1ea432"
      ],
      "author": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Mon May 07 15:03:39 2012 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Mon May 07 15:03:42 2012 +0200"
      },
      "message": "Merge branch \u0027linus\u0027 into sched/core\n\nMerge reason: We were on a pretty old base, refresh before moving on.\n\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "a4a2eb490e38aaff61eafcb8cde6725ad1be22ab",
      "tree": "cc626df26302e96f3fc7247f3fe895d2eddb69f6",
      "parents": [
        "c6ae063aaf3786b9db7f19a90bf4ed8aaebb7f90"
      ],
      "author": {
        "name": "Thomas Gleixner",
        "email": "tglx@linutronix.de",
        "time": "Thu May 03 09:02:48 2012 +0000"
      },
      "committer": {
        "name": "Thomas Gleixner",
        "email": "tglx@linutronix.de",
        "time": "Sat May 05 13:00:21 2012 +0200"
      },
      "message": "init_task: Create generic init_task instance\n\nAll archs define init_task in the same way (except ia64, but there is\nno particular reason why ia64 cannot use the common version). Create a\ngeneric instance so all archs can be converted over.\n\nThe config switch is temporary and will be removed when all archs are\nconverted over.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: Chen Liqin \u003cliqin.chen@sunplusct.com\u003e\nCc: Chris Metcalf \u003ccmetcalf@tilera.com\u003e\nCc: Chris Zankel \u003cchris@zankel.net\u003e\nCc: David Howells \u003cdhowells@redhat.com\u003e\nCc: David S. Miller \u003cdavem@davemloft.net\u003e\nCc: Geert Uytterhoeven \u003cgeert@linux-m68k.org\u003e\nCc: Guan Xuetao \u003cgxt@mprc.pku.edu.cn\u003e\nCc: Haavard Skinnemoen \u003chskinnemoen@gmail.com\u003e\nCc: Hirokazu Takata \u003ctakata@linux-m32r.org\u003e\nCc: James E.J. Bottomley \u003cjejb@parisc-linux.org\u003e\nCc: Jesper Nilsson \u003cjesper.nilsson@axis.com\u003e\nCc: Jonas Bonn \u003cjonas@southpole.se\u003e\nCc: Mark Salter \u003cmsalter@redhat.com\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nCc: Matt Turner \u003cmattst88@gmail.com\u003e\nCc: Michal Simek \u003cmonstr@monstr.eu\u003e\nCc: Mike Frysinger \u003cvapier@gentoo.org\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: Richard Kuo \u003crkuo@codeaurora.org\u003e\nCc: Richard Weinberger \u003crichard@nod.at\u003e\nCc: Russell King \u003clinux@arm.linux.org.uk\u003e\nCc: Yoshinori Sato \u003cysato@users.sourceforge.jp\u003e\nLink: http://lkml.kernel.org/r/20120503085034.092585287@linutronix.de\n"
    },
    {
      "commit": "9c806aa06f8e121c6058db8e8073798aa5c4355b",
      "tree": "d55fb9702aa80c4fb38f0da504b18a720e91f9bb",
      "parents": [
        "76b6db010297d4928ab7b7e7c78dd982f413f0a4"
      ],
      "author": {
        "name": "Eric W. Biederman",
        "email": "ebiederm@xmission.com",
        "time": "Thu Feb 02 18:54:02 2012 -0800"
      },
      "committer": {
        "name": "Eric W. Biederman",
        "email": "ebiederm@xmission.com",
        "time": "Thu May 03 03:28:39 2012 -0700"
      },
      "message": "userns: Convert sched_set_affinity and sched_set_scheduler\u0027s permission checks\n\n- Compare kuids with uid_eq\n- kuid are uniuqe across all user namespaces so there is no longer the\n  need for a user_namespace comparison.\n\nAcked-by: Serge Hallyn \u003cserge.hallyn@canonical.com\u003e\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\n"
    },
    {
      "commit": "616c310e83b872024271c915c1b9ab505b9efad9",
      "tree": "1339bc7b3bef920b4641a5af2f182e9dfa2a6632",
      "parents": [
        "66f75a5d028beaf67c931435fdc3e7823125730c"
      ],
      "author": {
        "name": "Paul E. McKenney",
        "email": "paul.mckenney@linaro.org",
        "time": "Tue Mar 27 16:02:08 2012 -0700"
      },
      "committer": {
        "name": "Paul E. McKenney",
        "email": "paulmck@linux.vnet.ibm.com",
        "time": "Wed May 02 14:43:23 2012 -0700"
      },
      "message": "rcu: Move PREEMPT_RCU preemption to switch_to() invocation\n\nCurrently, PREEMPT_RCU readers are enqueued upon entry to the scheduler.\nThis is inefficient because enqueuing is required only if there is a\ncontext switch, and entry to the scheduler does not guarantee a context\nswitch.\n\nThe commit therefore moves the enqueuing to immediately precede the\ncall to switch_to() from the scheduler.\n\nSigned-off-by: Paul E. McKenney \u003cpaul.mckenney@linaro.org\u003e\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nTested-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "fb2cf2c660971bea0ad86a9a5c19ad39eab61344",
      "tree": "75343c1ef32657416dbef2dd5a683391ff8b00c9",
      "parents": [
        "eb95308ee2a69403909e111837b9068c64cfc349"
      ],
      "author": {
        "name": "he, bo",
        "email": "bo.he@intel.com",
        "time": "Wed Apr 25 19:59:21 2012 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Thu Apr 26 12:54:53 2012 +0200"
      },
      "message": "sched: Fix OOPS when build_sched_domains() percpu allocation fails\n\nUnder extreme memory used up situations, percpu allocation\nmight fail. We hit it when system goes to suspend-to-ram,\ncausing a kworker panic:\n\n EIP: [\u003cc124411a\u003e] build_sched_domains+0x23a/0xad0\n Kernel panic - not syncing: Fatal exception\n Pid: 3026, comm: kworker/u:3\n 3.0.8-137473-gf42fbef #1\n\n Call Trace:\n  [\u003cc18cc4f2\u003e] panic+0x66/0x16c\n  [...]\n  [\u003cc1244c37\u003e] partition_sched_domains+0x287/0x4b0\n  [\u003cc12a77be\u003e] cpuset_update_active_cpus+0x1fe/0x210\n  [\u003cc123712d\u003e] cpuset_cpu_inactive+0x1d/0x30\n  [...]\n\nWith this fix applied build_sched_domains() will return -ENOMEM and\nthe suspend attempt fails.\n\nSigned-off-by: he, bo \u003cbo.he@intel.com\u003e\nReviewed-by: Zhang, Yanmin \u003cyanmin.zhang@intel.com\u003e\nReviewed-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: \u003cstable@kernel.org\u003e\nLink: http://lkml.kernel.org/r/1335355161.5892.17.camel@hebo\n[ So, we fail to deallocate a CPU because we cannot allocate RAM :-/\n  I don\u0027t like that kind of sad behavior but nevertheless it should\n  not crash under high memory load. ]\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "eb95308ee2a69403909e111837b9068c64cfc349",
      "tree": "92e9a3368e75b94486dc54f2688453fed17d4eed",
      "parents": [
        "2300fd67b4f29eec19addb15a8571837228f63fc"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Tue Apr 17 13:38:40 2012 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Thu Apr 26 12:54:52 2012 +0200"
      },
      "message": "sched: Fix more load-balancing fallout\n\nCommits 367456c756a6 (\"sched: Ditch per cgroup task lists for\nload-balancing\") and 5d6523ebd (\"sched: Fix load-balance wreckage\")\nleft some more wreckage.\n\nBy setting loop_max unconditionally to -\u003enr_running load-balancing\ncould take a lot of time on very long runqueues (hackbench!). So keep\nthe sysctl as max limit of the amount of tasks we\u0027ll iterate.\n\nFurthermore, the min load filter for migration completely fails with\ncgroups since inequality in per-cpu state can easily lead to such\nsmall loads :/\n\nFurthermore the change to add new tasks to the tail of the queue\ninstead of the head seems to have some effect.. not quite sure I\nunderstand why.\n\nCombined these fixes solve the huge hackbench regression reported by\nTim when hackbench is ran in a cgroup.\n\nReported-by: Tim Chen \u003ctim.c.chen@linux.intel.com\u003e\nAcked-by: Tim Chen \u003ctim.c.chen@linux.intel.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nLink: http://lkml.kernel.org/r/1335365763.28150.267.camel@twins\n[ got rid of the CONFIG_PREEMPT tuning and made small readability edits ]\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "29d5e0476e1c4a513859e7858845ad172f560389",
      "tree": "b353eee6e4cdf57207e6eba5d80564a4e8811cc9",
      "parents": [
        "38498a67aa2cf8c80754b8d304bfacc10bc582b5"
      ],
      "author": {
        "name": "Thomas Gleixner",
        "email": "tglx@linutronix.de",
        "time": "Fri Apr 20 13:05:45 2012 +0000"
      },
      "committer": {
        "name": "Thomas Gleixner",
        "email": "tglx@linutronix.de",
        "time": "Thu Apr 26 12:06:09 2012 +0200"
      },
      "message": "smp: Provide generic idle thread allocation\n\nAll SMP architectures have magic to fork the idle task and to store it\nfor reusage when cpu hotplug is enabled. Provide a generic\ninfrastructure for it.\n\nCreate/reinit the idle thread for the cpu which is brought up in the\ngeneric code and hand the thread pointer to the architecture code via\n__cpu_up().\n\nNote, that fork_idle() is called via a workqueue, because this\nguarantees that the idle thread does not get a reference to a user\nspace VM. This can happen when the boot process did not bring up all\npossible cpus and a later cpu_up() is initiated via the sysfs\ninterface. In that case fork_idle() would be called in the context of\nthe user space task and take a reference on the user space VM.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nCc: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\nCc: Matt Turner \u003cmattst88@gmail.com\u003e\nCc: Russell King \u003clinux@arm.linux.org.uk\u003e\nCc: Mike Frysinger \u003cvapier@gentoo.org\u003e\nCc: Jesper Nilsson \u003cjesper.nilsson@axis.com\u003e\nCc: Richard Kuo \u003crkuo@codeaurora.org\u003e\nCc: Tony Luck \u003ctony.luck@intel.com\u003e\nCc: Hirokazu Takata \u003ctakata@linux-m32r.org\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: David Howells \u003cdhowells@redhat.com\u003e\nCc: James E.J. Bottomley \u003cjejb@parisc-linux.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: David S. Miller \u003cdavem@davemloft.net\u003e\nCc: Chris Metcalf \u003ccmetcalf@tilera.com\u003e\nCc: Richard Weinberger \u003crichard@nod.at\u003e\nCc: x86@kernel.org\nAcked-by: Venkatesh Pallipadi \u003cvenki@google.com\u003e\nLink: http://lkml.kernel.org/r/20120420124557.102478630@linutronix.de\n"
    },
    {
      "commit": "4cbb62148cd686c2d3618861deb15eeb83744405",
      "tree": "ae20584f1375ee80a419d0cc60a7cde8c5cf9cea",
      "parents": [
        "668ce0ac707719d866af7e432e518af7b4c575ad",
        "8d3d5ada56a692d36a9d55858881147ec10cfeb6"
      ],
      "author": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Sat Apr 14 15:12:00 2012 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Sat Apr 14 15:12:04 2012 +0200"
      },
      "message": "Merge branch \u0027tip/sched/core\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace into sched/core\n\nPull a scheduler optimization commit from Steven Rostedt.\n\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "8d3d5ada56a692d36a9d55858881147ec10cfeb6",
      "tree": "ec5d41a8d596f247afb261d02d47485586098bdb",
      "parents": [
        "600e145882802d6ccbfe2c4aea243d97caeb91a9"
      ],
      "author": {
        "name": "Kirill Tkhai",
        "email": "tkhai@yandex.ru",
        "time": "Wed Apr 11 09:06:04 2012 +0400"
      },
      "committer": {
        "name": "Steven Rostedt",
        "email": "rostedt@goodmis.org",
        "time": "Thu Apr 12 16:59:37 2012 -0400"
      },
      "message": "sched_rt: Avoid unnecessary dequeue and enqueue of pushable tasks in set_cpus_allowed_rt()\n\nMigration status depends on a difference of weight from 0 and 1.\nIf weight \u003e 1 (\u003c\u003d 1) and old weight \u003c\u003d 1 (\u003e 1) then task becomes\npushable (or not pushable). We are not insterested in its exact\nvalues, is it 3 or 4, for example.\nNow if we are changing affinity from a set of 3 cpus to a set of 4, the-\ntask will be dequeued and enqueued sequentially without important\ndifference in comparison with initial state. The only difference is in\ninternal representation of plist queue of pushable tasks and the fact\nthat the task may won\u0027t be the first in a sequence of the same priority\ntasks. But it seems to me it gives nothing.\n\nLink: http://lkml.kernel.org/r/273741334120764@web83.yandex.ru\n\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nSigned-off-by: Tkhai Kirill \u003ctkhai@yandex.ru\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n"
    },
    {
      "commit": "c4a4d603796c727b9555867571f89483be9c565e",
      "tree": "ae3b47a7b8b35c866df53cb4b4a051d49a28904a",
      "parents": [
        "7e6bd8fadd1216f50468f965d0308f45e5109ced"
      ],
      "author": {
        "name": "Eric W. Biederman",
        "email": "ebiederm@xmission.com",
        "time": "Wed Nov 16 23:15:31 2011 -0800"
      },
      "committer": {
        "name": "Eric W. Biederman",
        "email": "ebiederm@xmission.com",
        "time": "Sat Apr 07 16:55:51 2012 -0700"
      },
      "message": "userns: Use cred-\u003euser_ns instead of cred-\u003euser-\u003euser_ns\n\nOptimize performance and prepare for the removal of the user_ns reference\nfrom user_struct.  Remove the slow long walk through cred-\u003euser-\u003euser_ns and\ninstead go straight to cred-\u003euser_ns.\n\nAcked-by: Serge Hallyn \u003cserge.hallyn@canonical.com\u003e\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\n"
    },
    {
      "commit": "4baf6e33251b37f111e21289f8ee71fe4cce236e",
      "tree": "7decc386a60679fd2696041810cf331c0daf1f41",
      "parents": [
        "676f7c8f84d15e94065841529016da5ab92e901b"
      ],
      "author": {
        "name": "Tejun Heo",
        "email": "tj@kernel.org",
        "time": "Sun Apr 01 12:09:55 2012 -0700"
      },
      "committer": {
        "name": "Tejun Heo",
        "email": "tj@kernel.org",
        "time": "Sun Apr 01 12:09:55 2012 -0700"
      },
      "message": "cgroup: convert all non-memcg controllers to the new cftype interface\n\nConvert debug, freezer, cpuset, cpu_cgroup, cpuacct, net_prio, blkio,\nnet_cls and device controllers to use the new cftype based interface.\nTermination entry is added to cftype arrays and populate callbacks are\nreplaced with cgroup_subsys-\u003ebase_cftypes initializations.\n\nThis is functionally identical transformation.  There shouldn\u0027t be any\nvisible behavior change.\n\nmemcg is rather special and will be converted separately.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nAcked-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Paul Menage \u003cpaul@paulmenage.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nCc: Vivek Goyal \u003cvgoyal@redhat.com\u003e\n"
    },
    {
      "commit": "f22e08a79f3765fecf060b225a46931c94fb0a92",
      "tree": "2f02777e8893d03289ec0a7f5f414f3ff01c8c37",
      "parents": [
        "f187e9fd68577cdd5f914659b6f7f11124e40485",
        "e3831edd59edf57ca11fc289f08961b20baf5146"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Sat Mar 31 13:35:31 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Sat Mar 31 13:35:31 2012 -0700"
      },
      "message": "Merge branch \u0027sched-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull scheduler fixes from Ingo Molnar.\n\n* \u0027sched-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n  sched: Fix incorrect usage of for_each_cpu_mask() in select_fallback_rq()\n  sched: Fix __schedule_bug() output when called from an interrupt\n  sched/arch: Introduce the finish_arch_post_lock_switch() scheduler callback\n"
    },
    {
      "commit": "e3831edd59edf57ca11fc289f08961b20baf5146",
      "tree": "70dfabd35517a97a1127df573d3770848f697e55",
      "parents": [
        "1f56ee7b68fecd45d25bdcf2eda7507797594424"
      ],
      "author": {
        "name": "Srivatsa S. Bhat",
        "email": "srivatsa.bhat@linux.vnet.ibm.com",
        "time": "Fri Mar 30 19:40:28 2012 +0530"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Sat Mar 31 10:43:36 2012 +0200"
      },
      "message": "sched: Fix incorrect usage of for_each_cpu_mask() in select_fallback_rq()\n\nThe function for_each_cpu_mask() expects a *pointer* to struct\ncpumask as its second argument, whereas select_fallback_rq()\npasses the value itself.\n\nAnd moreover, for_each_cpu_mask() has been marked as obselete\nin include/linux/cpumask.h. So move to the more appropriate\nfor_each_cpu() variant.\n\nReported-by: Sasha Levin \u003clevinsasha928@gmail.com\u003e\nSigned-off-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Dave Jones \u003cdavej@redhat.com\u003e\nCc: Liu Chuansheng \u003cchuansheng.liu@intel.com\u003e\nCc: vapier@gentoo.org\nCc: rusty@rustcorp.com.au\nLink: http://lkml.kernel.org/r/4F75BED4.9050005@linux.vnet.ibm.com\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "7fda0412c5f7afdd1a5ff518f98dee5157266d8a",
      "tree": "d312af46758fa9b59431a479d258b54184a00591",
      "parents": [
        "6b8212a313dae341ef3a2e413dfec5c4dea59617",
        "160594e99dbbb0a5600ad922c630952c7c1c14bf"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 29 14:46:05 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 29 14:46:05 2012 -0700"
      },
      "message": "Merge branch \u0027sched-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull scheduler fixes from Ingo Molnar.\n\n* \u0027sched-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n  cpusets: Remove an unused variable\n  sched/rt: Improve pick_next_highest_task_rt()\n  sched: Fix select_fallback_rq() vs cpu_active/cpu_online\n  sched/x86/smp: Do not enable IRQs over calibrate_delay()\n  sched: Fix compiler warning about declared inline after use\n  MAINTAINERS: Update email address for SCHEDULER and PERF EVENTS\n"
    },
    {
      "commit": "1f56ee7b68fecd45d25bdcf2eda7507797594424",
      "tree": "782ec71491cdfb0ce5d5117428be6c3af7070207",
      "parents": [
        "6135fc1eb4b1c9ae5f535507ed59591bab51e630",
        "01f23e1630d944f7085cd8fd5793e31ea91c03d8"
      ],
      "author": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Thu Mar 29 12:48:15 2012 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Thu Mar 29 12:48:22 2012 +0200"
      },
      "message": "Merge branch \u0027sched/arch\u0027 into sched/urgent\n\nMerge reason: It has not gone upstream via the ARM tree, merge it via\n              the scheduler tree.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "6135fc1eb4b1c9ae5f535507ed59591bab51e630",
      "tree": "d77513f138b94550b27394c907e9caf9f3d990a9",
      "parents": [
        "160594e99dbbb0a5600ad922c630952c7c1c14bf"
      ],
      "author": {
        "name": "Stephen Boyd",
        "email": "sboyd@codeaurora.org",
        "time": "Wed Mar 28 17:10:47 2012 -0700"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Thu Mar 29 08:34:45 2012 +0200"
      },
      "message": "sched: Fix __schedule_bug() output when called from an interrupt\n\nIf schedule is called from an interrupt handler __schedule_bug()\nwill call show_regs() with the registers saved during the\ninterrupt handling done in do_IRQ(). This means we\u0027ll see the\nregisters and the backtrace for the process that was interrupted\nand not the full backtrace explaining who called schedule().\n\nThis is due to 838225b (\"sched: use show_regs() to improve\n__schedule_bug() output\", 2007-10-24) which improperly assumed\nthat get_irq_regs() would return the registers for the current\nstack because it is being called from within an interrupt\nhandler. Simply remove the show_reg() code so that we dump a\nbacktrace for the interrupt handler that called schedule().\n\n[ I ran across this when I was presented with a scheduling while\n  atomic log with a stacktrace pointing at spin_unlock_irqrestore().\n  It made no sense and I had to guess what interrupt handler could\n  be called and poke around for someone calling schedule() in an\n  interrupt handler. A simple test of putting an msleep() in\n  an interrupt handler works better with this patch because you\n  can actually see the msleep() call in the backtrace. ]\n\nAlso-reported-by: Chris Metcalf \u003ccmetcalf@tilera.com\u003e\nSigned-off-by: Stephen Boyd \u003csboyd@codeaurora.org\u003e\nCc: Satyam Sharma \u003csatyam@infradead.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLink: http://lkml.kernel.org/r/1332979847-27102-1-git-send-email-sboyd@codeaurora.org\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "96f951edb1f1bdbbc99b0cd458f9808bb83d58ae",
      "tree": "c109d45d3fb8ccad461cfe6d9a4aa4d6005b38e1",
      "parents": [
        "49a7f04a4b9d45cd794741ce3d5d66524b37bdd0"
      ],
      "author": {
        "name": "David Howells",
        "email": "dhowells@redhat.com",
        "time": "Wed Mar 28 18:30:03 2012 +0100"
      },
      "committer": {
        "name": "David Howells",
        "email": "dhowells@redhat.com",
        "time": "Wed Mar 28 18:30:03 2012 +0100"
      },
      "message": "Add #includes needed to permit the removal of asm/system.h\n\nasm/system.h is a cause of circular dependency problems because it contains\ncommonly used primitive stuff like barrier definitions and uncommonly used\nstuff like switch_to() that might require MMU definitions.\n\nasm/system.h has been disintegrated by this point on all arches into the\nfollowing common segments:\n\n (1) asm/barrier.h\n\n     Moved memory barrier definitions here.\n\n (2) asm/cmpxchg.h\n\n     Moved xchg() and cmpxchg() here.  #included in asm/atomic.h.\n\n (3) asm/bug.h\n\n     Moved die() and similar here.\n\n (4) asm/exec.h\n\n     Moved arch_align_stack() here.\n\n (5) asm/elf.h\n\n     Moved AT_VECTOR_SIZE_ARCH here.\n\n (6) asm/switch_to.h\n\n     Moved switch_to() here.\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\n"
    },
    {
      "commit": "1b028abc779b67b699daff55e27d2432f8d92666",
      "tree": "0b6deda71cb6ee5a17773716912665b0ad8ddabc",
      "parents": [
        "2baab4e90495ebc9826c93f79d74d6e60a828d24"
      ],
      "author": {
        "name": "Michael J Wang",
        "email": "mjwang@broadcom.com",
        "time": "Mon Mar 19 22:26:19 2012 +0000"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Tue Mar 27 14:52:12 2012 +0200"
      },
      "message": "sched/rt: Improve pick_next_highest_task_rt()\n\nAvoid extra work by continuing on to the next rt_rq if the highest\nprio task in current rt_rq is the same priority as our candidate\ntask.\n\nMore detailed explanation:  if next is not NULL, then we have found a\ncandidate task, and its priority is next-\u003eprio.  Now we are looking\nfor an even higher priority task in the other rt_rq\u0027s.  idx is the\nhighest priority in the current candidate rt_rq.  In the current 3.3\ncode, if idx is equal to next-\u003eprio, we would start scanning the tasks\nin that rt_rq and replace the current candidate task with a task from\nthat rt_rq.  But the new task would only have a priority that is equal\nto our previous candidate task, so we have not advanced our goal of\nfinding a higher prio task.  So we should avoid the extra work by\ncontinuing on to the next rt_rq if idx is equal to next-\u003eprio.\n\nSigned-off-by: Michael J Wang \u003cmjwang@broadcom.com\u003e\nAcked-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nReviewed-by: Yong Zhang \u003cyong.zhang0@gmail.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/2EF88150C0EF2C43A218742ED384C1BC0FC83D6B@IRVEXCHMB08.corp.ad.broadcom.com\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "2baab4e90495ebc9826c93f79d74d6e60a828d24",
      "tree": "6e6316694a9bc69e517e50b0d01043c4c9e83888",
      "parents": [
        "bc758133ed73d4b06952bec21da23e28e62bf3ba"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Tue Mar 20 15:57:01 2012 +0100"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Tue Mar 27 14:50:14 2012 +0200"
      },
      "message": "sched: Fix select_fallback_rq() vs cpu_active/cpu_online\n\nCommit 5fbd036b55 (\"sched: Cleanup cpu_active madness\"), which was\nsupposed to finally sort the cpu_active mess, instead uncovered more.\n\nSince CPU_STARTING is ran before setting the cpu online, there\u0027s a\n(small) window where the cpu has active,!online.\n\nIf during this time there\u0027s a wakeup of a task that used to reside on\nthat cpu select_task_rq() will use select_fallback_rq() to compute an\nalternative cpu to run on since we find !online.\n\nselect_fallback_rq() however will compute the new cpu against\ncpu_active, this means that it can return the same cpu it started out\nwith, the !online one, since that cpu is in fact marked active.\n\nThis results in us trying to scheduling a task on an offline cpu and\ntriggering a WARN in the IPI code.\n\nThe solution proposed by Chuansheng Liu of setting cpu_active in\nset_cpu_online() is buggy, firstly not all archs actually use\nset_cpu_online(), secondly, not all archs call set_cpu_online() with\nIRQs disabled, this means we would introduce either the same race or\nthe race from fd8a7de17 (\"x86: cpu-hotplug: Prevent softirq wakeup on\nwrong CPU\") -- albeit much narrower.\n\n[ By setting online first and active later we have a window of\n  online,!active, fresh and bound kthreads have task_cpu() of 0 and\n  since cpu0 isn\u0027t in tsk_cpus_allowed() we end up in\n  select_fallback_rq() which excludes !active, resulting in a reset\n  of -\u003ecpus_allowed and the thread running all over the place. ]\n\nThe solution is to re-work select_fallback_rq() to require active\n_and_ online. This makes the active,!online case work as expected,\nOTOH archs running CPU_STARTING after setting online are now\nvulnerable to the issue from fd8a7de17 -- these are alpha and\nblackfin.\n\nReported-by: Chuansheng Liu \u003cchuansheng.liu@intel.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Mike Frysinger \u003cvapier@gentoo.org\u003e\nCc: linux-alpha@vger.kernel.org\nLink: http://lkml.kernel.org/n/tip-hubqk1i10o4dpvlm06gq7v6j@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "6c16a6dcb05e51ace340ff7bc6dbe647f1593528",
      "tree": "5df1dacdd4f9710a569d19b2a114bfca427404d0",
      "parents": [
        "dd9b238c1c53ddcdb10cbb2548f38543d49ad70a"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Wed Mar 21 13:07:16 2012 -0700"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@kernel.org",
        "time": "Fri Mar 23 10:39:28 2012 +0100"
      },
      "message": "sched: Fix compiler warning about declared inline after use\n\nkernel/sched/fair.c:420: warning: \u0027account_cfs_rq_runtime\u0027 declared inline after being called\nkernel/sched/fair.c:420: warning: previous declaration of \u0027account_cfs_rq_runtime\u0027 was here\nkernel/sched/fair.c:1165: warning: \u0027return_cfs_rq_runtime\u0027 declared inlineafter being called\nkernel/sched/fair.c:1165: warning: previous declaration of \u0027return_cfs_rq_runtime\u0027 was here\n\nReported-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nLink: http://lkml.kernel.org/r/20120321200717.49BB4A024E@akpm.mtv.corp.google.com\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n"
    },
    {
      "commit": "3556485f1595e3964ba539e39ea682acbb835cee",
      "tree": "7f5ee254f425b1427ac0059b5f347a307f8538a1",
      "parents": [
        "b8716614a7cc2fc15ea2a518edd04755fb08d922",
        "09f61cdbb32a9d812c618d3922db533542736bb0"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 13:25:04 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 13:25:04 2012 -0700"
      },
      "message": "Merge branch \u0027next\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security\n\nPull security subsystem updates for 3.4 from James Morris:\n \"The main addition here is the new Yama security module from Kees Cook,\n  which was discussed at the Linux Security Summit last year.  Its\n  purpose is to collect miscellaneous DAC security enhancements in one\n  place.  This also marks a departure in policy for LSM modules, which\n  were previously limited to being standalone access control systems.\n  Chromium OS is using Yama, and I believe there are plans for Ubuntu,\n  at least.\n\n  This patchset also includes maintenance updates for AppArmor, TOMOYO\n  and others.\"\n\nFix trivial conflict in \u003cnet/sock.h\u003e due to the jumo_label-\u003estatic_key\nrename.\n\n* \u0027next\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (38 commits)\n  AppArmor: Fix location of const qualifier on generated string tables\n  TOMOYO: Return error if fails to delete a domain\n  AppArmor: add const qualifiers to string arrays\n  AppArmor: Add ability to load extended policy\n  TOMOYO: Return appropriate value to poll().\n  AppArmor: Move path failure information into aa_get_name and rename\n  AppArmor: Update dfa matching routines.\n  AppArmor: Minor cleanup of d_namespace_path to consolidate error handling\n  AppArmor: Retrieve the dentry_path for error reporting when path lookup fails\n  AppArmor: Add const qualifiers to generated string tables\n  AppArmor: Fix oops in policy unpack auditing\n  AppArmor: Fix error returned when a path lookup is disconnected\n  KEYS: testing wrong bit for KEY_FLAG_REVOKED\n  TOMOYO: Fix mount flags checking order.\n  security: fix ima kconfig warning\n  AppArmor: Fix the error case for chroot relative path name lookup\n  AppArmor: fix mapping of META_READ to audit and quiet flags\n  AppArmor: Fix underflow in xindex calculation\n  AppArmor: Fix dropping of allowed operations that are force audited\n  AppArmor: Add mising end of structure test to caps unpacking\n  ...\n"
    },
    {
      "commit": "0d9cabdccedb79ee5f27b77ff51f29a9e7d23275",
      "tree": "8bfb64c3672d058eb90aec3c3a9c4f61cef9097c",
      "parents": [
        "701085b219016d38f105b031381b9cee6200253a",
        "3ce3230a0cff484e5130153f244d4fb8a56b3a8b"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Tue Mar 20 18:11:21 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Tue Mar 20 18:11:21 2012 -0700"
      },
      "message": "Merge branch \u0027for-3.4\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup\n\nPull cgroup changes from Tejun Heo:\n \"Out of the 8 commits, one fixes a long-standing locking issue around\n  tasklist walking and others are cleanups.\"\n\n* \u0027for-3.4\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:\n  cgroup: Walk task list under tasklist_lock in cgroup_enable_task_cg_list\n  cgroup: Remove wrong comment on cgroup_enable_task_cg_list()\n  cgroup: remove cgroup_subsys argument from callbacks\n  cgroup: remove extra calls to find_existing_css_set\n  cgroup: replace tasklist_lock with rcu_read_lock\n  cgroup: simplify double-check locking in cgroup_attach_proc\n  cgroup: move struct cgroup_pidlist out from the header file\n  cgroup: remove cgroup_attach_task_current_cg()\n"
    },
    {
      "commit": "2ba68940c893c8f0bfc8573c041254251bb6aeab",
      "tree": "fa83ebb01d32abd98123fa28f9f6f0b3eaeee25d",
      "parents": [
        "9c2b957db1772ebf942ae7a9346b14eba6c8ca66",
        "600e145882802d6ccbfe2c4aea243d97caeb91a9"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Tue Mar 20 10:31:44 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Tue Mar 20 10:31:44 2012 -0700"
      },
      "message": "Merge branch \u0027sched-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull scheduler changes for v3.4 from Ingo Molnar\n\n* \u0027sched-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits)\n  printk: Make it compile with !CONFIG_PRINTK\n  sched/x86: Fix overflow in cyc2ns_offset\n  sched: Fix nohz load accounting -- again!\n  sched: Update yield() docs\n  printk/sched: Introduce special printk_sched() for those awkward moments\n  sched/nohz: Correctly initialize \u0027next_balance\u0027 in \u0027nohz\u0027 idle balancer\n  sched: Cleanup cpu_active madness\n  sched: Fix load-balance wreckage\n  sched: Clean up parameter passing of proc_sched_autogroup_set_nice()\n  sched: Ditch per cgroup task lists for load-balancing\n  sched: Rename load-balancing fields\n  sched: Move load-balancing arguments into helper struct\n  sched/rt: Do not submit new work when PI-blocked\n  sched/rt: Prevent idle task boosting\n  sched/wait: Add __wake_up_all_locked() API\n  sched/rt: Document scheduler related skip-resched-check sites\n  sched/rt: Use schedule_preempt_disabled()\n  sched/rt: Add schedule_preempt_disabled()\n  sched/rt: Do not throttle when PI boosting\n  sched/rt: Keep period timer ticking when rt throttling is active\n  ...\n"
    },
    {
      "commit": "01f23e1630d944f7085cd8fd5793e31ea91c03d8",
      "tree": "f21651af720e87721c3829ff69a41c5a9d8cb31d",
      "parents": [
        "fde7d9049e55ab85a390be7f415d74c9f62dd0f9"
      ],
      "author": {
        "name": "Catalin Marinas",
        "email": "catalin.marinas@arm.com",
        "time": "Sun Nov 27 21:43:10 2011 +0000"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Mar 13 10:17:45 2012 +0100"
      },
      "message": "sched/arch: Introduce the finish_arch_post_lock_switch() scheduler callback\n\nThis callback is called by the scheduler after rq-\u003elock has been released\nand interrupts enabled. It will be used in subsequent patches on the ARM\narchitecture.\n\nSigned-off-by: Catalin Marinas \u003ccatalin.marinas@arm.com\u003e\nReviewed-by: Will Deacon \u003cwill.deacon@arm.com\u003e\nReviewed-by: Frank Rowand \u003cfrank.rowand@am.sony.com\u003e\nTested-by: Will Deacon \u003cwill.deacon@arm.com\u003e\nTested-by: Marc Zyngier \u003cMarc.Zyngier@arm.com\u003e\nAcked-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLink: http://lkml.kernel.org/n/20120313110840.7b444deb6b1bb902c15f3cdf@canb.auug.org.au\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "c308b56b5398779cd3da0f62ab26b0453494c3d4",
      "tree": "b2d90bd6f8ebbbeaae97f4ef319f7e22fcc77436",
      "parents": [
        "8e3fabfde445a872c8aec2296846badf24d7c8b4"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "peterz@infradead.org",
        "time": "Thu Mar 01 15:04:46 2012 +0100"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Mon Mar 12 20:43:17 2012 +0100"
      },
      "message": "sched: Fix nohz load accounting -- again!\n\nVarious people reported nohz load tracking still being wrecked, but Doug\nspotted the actual problem. We fold the nohz remainder in too soon,\ncausing us to loose samples and under-account.\n\nSo instead of playing catch-up up-front, always do a single load-fold\nwith whatever state we encounter and only then fold the nohz remainder\nand play catch-up.\n\nReported-by: Doug Smythies \u003cdsmythies@telus.net\u003e\nReported-by: LesÅ\u003d82aw Kope\u003dC4\u003d87 \u003cleslaw.kopec@nasza-klasa.pl\u003e\nReported-by: Aman Gupta \u003caman@tmm1.net\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/n/tip-4v31etnhgg9kwd6ocgx3rxl8@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "8e3fabfde445a872c8aec2296846badf24d7c8b4",
      "tree": "60f47d850adc39aff6de56ec82d7e1a13d93d4a8",
      "parents": [
        "3ccf3e8306156a28213adc720aba807e9a901ad5"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Tue Mar 06 18:54:26 2012 +0100"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Mon Mar 12 20:43:17 2012 +0100"
      },
      "message": "sched: Update yield() docs\n\nSuggested-by: Joe Perches \u003cjoe@perches.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1331056466.11248.327.camel@twins\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "3ccf3e8306156a28213adc720aba807e9a901ad5",
      "tree": "5b9db344b702299ea7eb53fbff3d0d74707d40ec",
      "parents": [
        "554cecaf733623b327eef9652b65965eb1081b81"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Mon Feb 27 10:47:00 2012 +0100"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Mon Mar 12 20:43:16 2012 +0100"
      },
      "message": "printk/sched: Introduce special printk_sched() for those awkward moments\n\nThere\u0027s a few awkward printk()s inside of scheduler guts that people\nprefer to keep but really are rather deadlock prone. Fudge around it\nby storing the text in a per-cpu buffer and poll it using the existing\nprintk_tick() handler.\n\nThis will drop output when its more frequent than once a tick, however\nonly the affinity thing could possible go that fast and for that just\none should suffice to notify the admin he\u0027s done something silly..\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nLink: http://lkml.kernel.org/n/tip-wua3lmkt3dg8nfts66o6brne@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "554cecaf733623b327eef9652b65965eb1081b81",
      "tree": "4e471c4689563d3a882667323ece2e581d8f17c8",
      "parents": [
        "5fbd036b552f633abb394a319f7c62a5c86a9cd7"
      ],
      "author": {
        "name": "Diwakar Tundlam",
        "email": "dtundlam@nvidia.com",
        "time": "Wed Mar 07 14:44:26 2012 -0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Mon Mar 12 20:43:16 2012 +0100"
      },
      "message": "sched/nohz: Correctly initialize \u0027next_balance\u0027 in \u0027nohz\u0027 idle balancer\n\nThe \u0027next_balance\u0027 field of \u0027nohz\u0027 idle balancer must be initialized\nto jiffies. Since jiffies is initialized to negative 300 seconds the\n\u0027nohz\u0027 idle balancer does not run for the first 300s (5mins) after\nbootup. If no new processes are spawed or no idle cycles happen, the\nload on the cpus will remain unbalanced for that duration.\n\nSigned-off-by: Diwakar Tundlam \u003cdtundlam@nvidia.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1DD7BFEDD3147247B1355BEFEFE4665237994F30EF@HQMAIL04.nvidia.com\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "5fbd036b552f633abb394a319f7c62a5c86a9cd7",
      "tree": "fa91474a6aac5ea4aef0d7afc72af27c32d611af",
      "parents": [
        "5d6523ebd2f67de9d23285aad7f3910e7b0aee83"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "peterz@infradead.org",
        "time": "Thu Dec 15 17:09:22 2011 +0100"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Mon Mar 12 20:43:15 2012 +0100"
      },
      "message": "sched: Cleanup cpu_active madness\n\nStepan found:\n\nCPU0\t\tCPUn\n\n_cpu_up()\n  __cpu_up()\n\n\t\tboostrap()\n\t\t  notify_cpu_starting()\n\t\t  set_cpu_online()\n\t\t  while (!cpu_active())\n\t\t    cpu_relax()\n\n\u003cPREEMPT-out\u003e\n\nsmp_call_function(.wait\u003d1)\n  /* we find cpu_online() is true */\n  arch_send_call_function_ipi_mask()\n\n  /* wait-forever-more */\n\n\u003cPREEMPT-in\u003e\n\t\t  local_irq_enable()\n\n  cpu_notify(CPU_ONLINE)\n    sched_cpu_active()\n      set_cpu_active()\n\nNow the purpose of cpu_active is mostly with bringing down a cpu, where\nwe mark it !active to avoid the load-balancer from moving tasks to it\nwhile we tear down the cpu. This is required because we only update the\nsched_domain tree after we brought the cpu-down. And this is needed so\nthat some tasks can still run while we bring it down, we just don\u0027t want\nnew tasks to appear.\n\nOn cpu-up however the sched_domain tree doesn\u0027t yet include the new cpu,\nso its invisible to the load-balancer, regardless of the active state.\nSo instead of setting the active state after we boot the new cpu (and\nconsequently having to wait for it before enabling interrupts) set the\ncpu active before we set it online and avoid the whole mess.\n\nReported-by: Stepan Moskovchenko \u003cstepanm@codeaurora.org\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nLink: http://lkml.kernel.org/r/1323965362.18942.71.camel@twins\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "5d6523ebd2f67de9d23285aad7f3910e7b0aee83",
      "tree": "745ee9e9378dd255fe7097e42c34a86ba9b8ee48",
      "parents": [
        "2e5b5b3a1b7768c89fbfeca18e75f8ee377e924c"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Sat Mar 10 00:07:36 2012 +0100"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Mon Mar 12 20:43:15 2012 +0100"
      },
      "message": "sched: Fix load-balance wreckage\n\nCommit 367456c (\"sched: Ditch per cgroup task lists for\nload-balancing\") completely wrecked load-balancing due to\na few silly mistakes.\n\nCorrect those and remove more pointless code.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/n/tip-zk04ihygwxn7qqrlpaf73b0r@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "4293f20c19f44ca66e5ac836b411d25e14b9f185",
      "tree": "4f9ab09ca1f775907af2a78ebb8754b945570d39",
      "parents": [
        "dac12d1f5ef228e132c2457dc214e0703533b016"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 07 08:21:19 2012 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 07 08:21:19 2012 -0800"
      },
      "message": "Revert \"CPU hotplug, cpusets, suspend: Don\u0027t touch cpusets during suspend/resume\"\n\nThis reverts commit 8f2f748b0656257153bcf0941df8d6060acc5ca6.\n\nIt causes some odd regression that we have not figured out, and it\u0027s too\nlate in the -rc series to try to figure it out now.\n\nAs reported by Konstantin Khlebnikov, it causes consistent hangs on his\nlaptop (Thinkpad x220: 2x cores + HT).  They can be avoided by adding\ncalls to \"rebuild_sched_domains();\" in cpuset_cpu_[in]active() for the\nCPU_{ONLINE/DOWN_FAILED/DOWN_PREPARE}_FROZEN cases, but it\u0027s not at all\nclear why, and it makes no sense.\n\nKonstantin\u0027s config doesn\u0027t even have CONFIG_CPUSETS enabled, just to\nmake things even more interesting.  So it\u0027s not the cpusets, it\u0027s just\nthe scheduling domains.\n\nSo until this is understood, revert.\n\nBisected-reported-and-tested-by: Konstantin Khlebnikov \u003ckhlebnikov@openvz.org\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nAcked-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "737f24bda723fdf89ecaacb99fa2bf5683c32799",
      "tree": "35495fff3e9956679cb5468e74e6814c8e44ee66",
      "parents": [
        "8eedce996556d7d06522cd3a0e6069141c8dffe0",
        "b7c924274c456499264d1cfa3d44063bb11eb5db"
      ],
      "author": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Mon Mar 05 09:20:08 2012 +0100"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Mon Mar 05 09:20:08 2012 +0100"
      },
      "message": "Merge branch \u0027perf/urgent\u0027 into perf/core\n\nConflicts:\n\ttools/perf/builtin-record.c\n\ttools/perf/builtin-top.c\n\ttools/perf/perf.h\n\ttools/perf/util/top.h\n\nMerge reason: resolve these cherry-picking conflicts.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "2e5b5b3a1b7768c89fbfeca18e75f8ee377e924c",
      "tree": "0d6d589e42b7e88464d5edcfa818b3a7e27a93e8",
      "parents": [
        "367456c756a6b84f493ca9cc5b17b1f5d38ef466"
      ],
      "author": {
        "name": "Hiroshi Shimamoto",
        "email": "h-shimamoto@ct.jp.nec.com",
        "time": "Thu Feb 23 17:41:27 2012 +0900"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Fri Mar 02 12:23:49 2012 +0100"
      },
      "message": "sched: Clean up parameter passing of proc_sched_autogroup_set_nice()\n\nPass nice as a value to proc_sched_autogroup_set_nice().\n\nNo side effect is expected, and the variable err will be overwritten with\nthe return value.\n\nSigned-off-by: Hiroshi Shimamoto \u003ch-shimamoto@ct.jp.nec.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/4F45FBB7.5090607@ct.jp.nec.com\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "367456c756a6b84f493ca9cc5b17b1f5d38ef466",
      "tree": "0e95a2fa5cb25ea14e2841d84d4d2410ff383e33",
      "parents": [
        "ddcdf6e7d9919d139031fa2a6addd9544a9a833e"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Mon Feb 20 21:49:09 2012 +0100"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Thu Mar 01 13:08:37 2012 +0100"
      },
      "message": "sched: Ditch per cgroup task lists for load-balancing\n\nPer cgroup load-balance has numerous problems, chief amongst them that\nthere is no real sane order in them. So stop pretending it makes sense\nand enqueue all tasks on a single list.\n\nThis also allows us to more easily fix the fwd progress issue\nuncovered by the lock-break stuff. Rotate the list on failure to\nmigreate and limit the total iterations to nr_running (which with\nreleasing the lock isn\u0027t strictly accurate but close enough).\n\nAlso add a filter that skips very light tasks on the first attempt\naround the list, this attempts to avoid shooting whole cgroups around\nwithout affecting over balance.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: pjt@google.com\nLink: http://lkml.kernel.org/n/tip-tx8yqydc7eimgq7i4rkc3a4g@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "ddcdf6e7d9919d139031fa2a6addd9544a9a833e",
      "tree": "5c6883bdc1128a7c89b6d7e3ac13aa1a54f5c3c0",
      "parents": [
        "8e45cb545d98bc58e75b7de89ec8d3e5c8459ee6"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Wed Feb 22 19:27:40 2012 +0100"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Thu Mar 01 10:51:23 2012 +0100"
      },
      "message": "sched: Rename load-balancing fields\n\n s/env-\u003ethis_/env-\u003edst_/g\n s/env-\u003ebusiest_/env-\u003esrc_/g\n s/pull_task/move_task/g\n\nMakes everything clearer.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: pjt@google.com\nLink: http://lkml.kernel.org/n/tip-0yvgms8t8x962drpvl0fu0kk@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "8e45cb545d98bc58e75b7de89ec8d3e5c8459ee6",
      "tree": "b855602a267eb38bc5d511050fb40477e5a607f1",
      "parents": [
        "3c7d51843b03a6839e9ec7cda724e54d2319a63a"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Wed Feb 22 12:47:19 2012 +0100"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Thu Mar 01 10:51:22 2012 +0100"
      },
      "message": "sched: Move load-balancing arguments into helper struct\n\nPassing large sets of similar arguments all around the load-balancer\ngets tiresom when you want to modify something. Stick them all in a\nhelper structure and pass the structure around.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: pjt@google.com\nLink: http://lkml.kernel.org/n/tip-5slqz0vhsdzewrfk9eza1aon@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "3c7d51843b03a6839e9ec7cda724e54d2319a63a",
      "tree": "df8ac53451a7e519ddb0d349b24e6ba17ea18afb",
      "parents": [
        "1c4dd99bed5f6f70932bf8dacdd54d04a2619778"
      ],
      "author": {
        "name": "Thomas Gleixner",
        "email": "tglx@linutronix.de",
        "time": "Sun Jul 17 20:46:52 2011 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Thu Mar 01 10:46:54 2012 +0100"
      },
      "message": "sched/rt: Do not submit new work when PI-blocked\n\nWhen we are PI-blocked then we want to get things done ASAP.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/n/tip-vw8et3445km5b8mpihf4trae@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "1c4dd99bed5f6f70932bf8dacdd54d04a2619778",
      "tree": "24b6db83e0507598e255de9e5b410a8300ab7572",
      "parents": [
        "63b2001169e75cd71e917ec953fdab572e3f944a"
      ],
      "author": {
        "name": "Thomas Gleixner",
        "email": "tglx@linutronix.de",
        "time": "Mon Jun 06 20:07:38 2011 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Thu Mar 01 10:28:05 2012 +0100"
      },
      "message": "sched/rt: Prevent idle task boosting\n\nIdle task boosting is a nono in general. There is one\nexception, when PREEMPT_RT and NOHZ is active:\n\nThe idle task calls get_next_timer_interrupt() and holds\nthe timer wheel base-\u003elock on the CPU and another CPU wants\nto access the timer (probably to cancel it). We can safely\nignore the boosting request, as the idle CPU runs this code\nwith interrupts disabled and will complete the lock\nprotected section without being interrupted. So there is no\nreal need to boost.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/n/tip-755rvsosz7sdzot12a3gbha6@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "63b2001169e75cd71e917ec953fdab572e3f944a",
      "tree": "3338725751540571a7d490b252f1b450554a6847",
      "parents": [
        "ba74c1448f127649046615ec017bded7b2a76f29"
      ],
      "author": {
        "name": "Thomas Gleixner",
        "email": "tglx@linutronix.de",
        "time": "Thu Dec 01 00:04:00 2011 +0100"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Thu Mar 01 10:28:04 2012 +0100"
      },
      "message": "sched/wait: Add __wake_up_all_locked() API\n\nFor code which protects the waitqueue itself with another lock it\nmakes no sense to acquire the waitqueue lock for wakeup all. Provide\n__wake_up_all_locked().\n\nThis is an optimization on the vanilla kernel (to be used by the\nPCI code) and an important semantic distinction on -rt.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/n/tip-ux6m4b8jonb9inx8xafh77ds@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "ba74c1448f127649046615ec017bded7b2a76f29",
      "tree": "33eceaf0c4b35aca095e3e1a678bdbab23006650",
      "parents": [
        "bd2f55361f18347e890d52ff9cfd8895455ec11b"
      ],
      "author": {
        "name": "Thomas Gleixner",
        "email": "tglx@linutronix.de",
        "time": "Mon Mar 21 13:32:17 2011 +0100"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Thu Mar 01 10:28:04 2012 +0100"
      },
      "message": "sched/rt: Document scheduler related skip-resched-check sites\n\nCreate a distinction between scheduler related preempt_enable_no_resched()\ncalls and the nearly one hundred other places in the kernel that do not\nwant to reschedule, for one reason or another.\n\nThis distinction matters for -rt, where the scheduler and the non-scheduler\npreempt models (and checks) are different. For upstream it\u0027s purely\ndocumentational.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nLink: http://lkml.kernel.org/n/tip-gs88fvx2mdv5psnzxnv575ke@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "c5491ea779793f977d282754db478157cc409d82",
      "tree": "c110f80101e9e513f5a6f1d2ba81b2934c2408f6",
      "parents": [
        "7abc63b1bd412f7655b62ef3e35c3c11c5134636"
      ],
      "author": {
        "name": "Thomas Gleixner",
        "email": "tglx@linutronix.de",
        "time": "Mon Mar 21 12:09:35 2011 +0100"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Thu Mar 01 10:28:03 2012 +0100"
      },
      "message": "sched/rt: Add schedule_preempt_disabled()\n\nAdd helper to get rid of the ever repeating:\n\n    preempt_enable_no_resched();\n    schedule();\n    preempt_disable();\n\npatterns.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/n/tip-wxx7btox7coby6ifv5vzhzgp@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "7abc63b1bd412f7655b62ef3e35c3c11c5134636",
      "tree": "c2a18d2b57d71d124ddb280d396df94b7110448f",
      "parents": [
        "42c62a589f1ccbf38a02cb732231f9c2fccc5ab0"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "peterz@infradead.org",
        "time": "Tue Oct 18 22:03:48 2011 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Thu Mar 01 10:28:02 2012 +0100"
      },
      "message": "sched/rt: Do not throttle when PI boosting\n\nWhen a runqueue has rt_runtime_us \u003d 0 then the only way it can\naccumulate rt_time is via PI boosting. That causes the runqueue\nto be throttled and replenishing does not change anything due to\nrt_runtime_us \u003d 0. So avoid that situation by clearing rt_time and\nskip the throttling alltogether.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\n[ Changelog ]\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nLink: http://lkml.kernel.org/n/tip-7x70cypsotjb4jvcor3edctk@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "42c62a589f1ccbf38a02cb732231f9c2fccc5ab0",
      "tree": "80ba018cd3b581668f9c8dc75d52f9c2a9ee9f54",
      "parents": [
        "7e4d960993331e92567f0180e45322a93e6780ba"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "peterz@infradead.org",
        "time": "Tue Oct 18 22:03:48 2011 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Thu Mar 01 10:28:01 2012 +0100"
      },
      "message": "sched/rt: Keep period timer ticking when rt throttling is active\n\nWhen a runqueue is throttled we cannot disable the period timer\nbecause that timer is the only way to undo the throttling.\n\nWe got stale throttling entries when a rq was throttled and then the\nglobal sysctl was disabled, which stopped the timer.\n\nSigned-off-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\n[ Added changelog ]\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nLink: http://lkml.kernel.org/n/tip-nuj34q52p6ro7szapuz84i0v@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "7e4d960993331e92567f0180e45322a93e6780ba",
      "tree": "4d7444035303fc0b545e88afbd894176344fb2a3",
      "parents": [
        "de5bdff7a72acc281219be2b8edeeca1fd81c542",
        "164974a8f2a482f1abcb027c6d1a89dd79b14297"
      ],
      "author": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Thu Mar 01 10:26:41 2012 +0100"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Thu Mar 01 10:26:43 2012 +0100"
      },
      "message": "Merge branch \u0027linus\u0027 into sched/core\n\nMerge reason: we\u0027ll queue up dependent patches.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "8f2f748b0656257153bcf0941df8d6060acc5ca6",
      "tree": "960e37a40212b88dd25be216addf7381c87c84fe",
      "parents": [
        "8c79a045fd590a26e81e75f5d8d4ec5c7d23e565"
      ],
      "author": {
        "name": "Srivatsa S. Bhat",
        "email": "srivatsa.bhat@linux.vnet.ibm.com",
        "time": "Thu Feb 23 15:27:15 2012 +0530"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Mon Feb 27 11:38:13 2012 +0100"
      },
      "message": "CPU hotplug, cpusets, suspend: Don\u0027t touch cpusets during suspend/resume\n\nCurrently, during CPU hotplug, the cpuset callbacks modify the cpusets\nto reflect the state of the system, and this handling is asymmetric.\nThat is, upon CPU offline, that CPU is removed from all cpusets. However\nwhen it comes back online, it is put back only to the root cpuset.\n\nThis gives rise to a significant problem during suspend/resume. During\nsuspend, we offline all non-boot cpus and during resume we online them back.\nWhich means, after a resume, all cpusets (except the root cpuset) will be\nrestricted to just one single CPU (the boot cpu). But the whole point of\nsuspend/resume is to restore the system to a state which is as close as\npossible to how it was before suspend.\n\nSo to fix this, don\u0027t touch cpusets during suspend/resume. That is, modify\nthe cpuset-related CPU hotplug callback to just ignore CPU hotplug when it\nis initiated as part of the suspend/resume sequence.\n\nReported-by: Prashanth Nageshappa \u003cprashanth@linux.vnet.ibm.com\u003e\nSigned-off-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\nCc: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: stable@vger.kernel.org\nLink: http://lkml.kernel.org/r/4F460D7B.1020703@linux.vnet.ibm.com\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "c5905afb0ee6550b42c49213da1c22d67316c194",
      "tree": "253fdb322e6e5b257ffda3b9b66bce90a473a6f7",
      "parents": [
        "1cfa60dc7d7c7cc774a44eee47ff135a644a1f31"
      ],
      "author": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Fri Feb 24 08:31:31 2012 +0100"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Fri Feb 24 10:05:59 2012 +0100"
      },
      "message": "static keys: Introduce \u0027struct static_key\u0027, static_key_true()/false() and static_key_slow_[inc|dec]()\n\nSo here\u0027s a boot tested patch on top of Jason\u0027s series that does\nall the cleanups I talked about and turns jump labels into a\nmore intuitive to use facility. It should also address the\nvarious misconceptions and confusions that surround jump labels.\n\nTypical usage scenarios:\n\n        #include \u003clinux/static_key.h\u003e\n\n        struct static_key key \u003d STATIC_KEY_INIT_TRUE;\n\n        if (static_key_false(\u0026key))\n                do unlikely code\n        else\n                do likely code\n\nOr:\n\n        if (static_key_true(\u0026key))\n                do likely code\n        else\n                do unlikely code\n\nThe static key is modified via:\n\n        static_key_slow_inc(\u0026key);\n        ...\n        static_key_slow_dec(\u0026key);\n\nThe \u0027slow\u0027 prefix makes it abundantly clear that this is an\nexpensive operation.\n\nI\u0027ve updated all in-kernel code to use this everywhere. Note\nthat I (intentionally) have not pushed through the rename\nblindly through to the lowest levels: the actual jump-label\npatching arch facility should be named like that, so we want to\ndecouple jump labels from the static-key facility a bit.\n\nOn non-jump-label enabled architectures static keys default to\nlikely()/unlikely() branches.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nAcked-by: Jason Baron \u003cjbaron@redhat.com\u003e\nAcked-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: a.p.zijlstra@chello.nl\nCc: mathieu.desnoyers@efficios.com\nCc: davem@davemloft.net\nCc: ddaney.cavm@gmail.com\nCc: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nLink: http://lkml.kernel.org/r/20120222085809.GA26397@elte.hu\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "de5bdff7a72acc281219be2b8edeeca1fd81c542",
      "tree": "6a528beb1852e2fd7d444b47e8b4cc6e6be31108",
      "parents": [
        "62f6536a630affe3176deb48554d27ee58b65077"
      ],
      "author": {
        "name": "Hiroshi Shimamoto",
        "email": "h-shimamoto@ct.jp.nec.com",
        "time": "Thu Feb 16 14:52:21 2012 +0900"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Wed Feb 22 12:28:29 2012 +0100"
      },
      "message": "sched: Make initial SCHED_RR timeslace DEF_TIMESLICE\n\nCurrent the initial SCHED_RR timeslice of init_task is HZ, which means\n1s, and is not same as the default SCHED_RR timeslice DEF_TIMESLICE.\n\nChange that initial timeslice to the DEF_TIMESLICE.\n\nSigned-off-by: Hiroshi Shimamoto \u003ch-shimamoto@ct.jp.nec.com\u003e\n[ s/DEF_TIMESLICE/RR_TIMESLICE/g ]\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/4F3C9995.3010800@ct.jp.nec.com\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "62f6536a630affe3176deb48554d27ee58b65077",
      "tree": "cf1365f5c0d0b9aebb5877afa8a7b5da4aa11917",
      "parents": [
        "9388dc3047a88bedfd867e9ba3e1980c815ac524"
      ],
      "author": {
        "name": "Nikunj A. Dadhania",
        "email": "nikunj@linux.vnet.ibm.com",
        "time": "Fri Feb 17 08:34:30 2012 +0530"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Wed Feb 22 12:28:28 2012 +0100"
      },
      "message": "sched: Remove rcu_read_lock/unlock() from select_idle_sibling()\n\nselect_idle_sibling() is called from select_task_rq_fair(), which\nalready has the RCU read lock held.\n\nSigned-off-by: Nikunj A. Dadhania \u003cnikunj@linux.vnet.ibm.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/20120217030409.11748.12491.stgit@abhimanyu\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "8c79a045fd590a26e81e75f5d8d4ec5c7d23e565",
      "tree": "8123849709e37dc2394373ad40cf333b2f19ebb5",
      "parents": [
        "719741d9986572d64b47c35c09f5e7bb8d389400"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Mon Jan 30 14:51:37 2012 +0100"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Wed Feb 22 12:06:55 2012 +0100"
      },
      "message": "sched/events: Revert trace_sched_stat_sleeptime()\n\nCommit 1ac9bc69 (\"sched/tracing: Add a new tracepoint for sleeptime\")\nadded a new sched:sched_stat_sleeptime tracepoint.\n\nIt\u0027s broken: the first sample we get on a task might be bad because\nof a stale sleep_start value that wasn\u0027t reset at the last task switch\nbecause the tracepoint was not active.\n\nIt also breaks the existing schedstat samples due to the side\neffects of:\n\n-               se-\u003estatistics.sleep_start \u003d 0;\n...\n-               se-\u003estatistics.block_start \u003d 0;\n\nNor do I see means to fix it without adding overhead to the scheduler\nfast path, which I\u0027m not willing to for the sake of redundant\ninstrumentation.\n\nMost importantly, sleep time information can already be constructed\nby tracing context switches and wakeups, and taking the timestamp\ndifference between the schedule-out, the wakeup and the schedule-in.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Andrew Vagin \u003cavagin@openvz.org\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLink: http://lkml.kernel.org/n/tip-pc4c9qhl8q6vg3bs4j6k0rbd@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "4040153087478993cbf0809f444400a3c808074c",
      "tree": "2dc7af85b0cf930f1656553bd38410b8c16601a6",
      "parents": [
        "191c542442fdf53cc3c496c00be13367fd9cd42d"
      ],
      "author": {
        "name": "Al Viro",
        "email": "viro@ftp.linux.org.uk",
        "time": "Mon Feb 13 03:58:52 2012 +0000"
      },
      "committer": {
        "name": "James Morris",
        "email": "jmorris@namei.org",
        "time": "Tue Feb 14 10:45:42 2012 +1100"
      },
      "message": "security: trim security.h\n\nTrim security.h\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nSigned-off-by: James Morris \u003cjmorris@namei.org\u003e\n"
    },
    {
      "commit": "761b3ef50e1c2649cffbfa67a4dcb2dcdb7982ed",
      "tree": "67ab6a9a2520811c9c0b4d70d1c19b4bfca16237",
      "parents": [
        "61d1d219c4c0761059236a46867bc49943c4d29d"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Tue Jan 31 13:47:36 2012 +0800"
      },
      "committer": {
        "name": "Tejun Heo",
        "email": "tj@kernel.org",
        "time": "Thu Feb 02 09:20:22 2012 -0800"
      },
      "message": "cgroup: remove cgroup_subsys argument from callbacks\n\nThe argument is not used at all, and it\u0027s not necessary, because\na specific callback handler of course knows which subsys it\nbelongs to.\n\nNow only -\u003epupulate() takes this argument, because the handlers of\nthis callback always call cgroup_add_file()/cgroup_add_files().\n\nSo we reduce a few lines of code, though the shrinking of object size\nis minimal.\n\n 16 files changed, 113 insertions(+), 162 deletions(-)\n\n   text    data     bss     dec     hex filename\n5486240  656987 7039960 13183187         c928d3 vmlinux.o.orig\n5486170  656987 7039960 13183117         c9288d vmlinux.o\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\n"
    },
    {
      "commit": "ed387b781ea6e14b78f449aa2ee4f270b60b01ac",
      "tree": "16ae2791173a7796feadf853ba1bee9b93fc0fff",
      "parents": [
        "30fd049afcfed50e022704036e8629d6bdfe84e6"
      ],
      "author": {
        "name": "Hiroshi Shimamoto",
        "email": "h-shimamoto@ct.jp.nec.com",
        "time": "Tue Jan 31 11:40:32 2012 +0900"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Jan 31 13:40:59 2012 +0100"
      },
      "message": "sched: Move SMP-only variable into the SMP section\n\nThis also fixes the following compilation warning on !SMP:\n\n  CC kernel/sched/fair.o\n  kernel/sched/fair.c:218:36: warning: \u0027max_load_balance_interval\u0027 defined but not used [-Wunused-variable]\n\nSigned-off-by: Hiroshi Shimamoto \u003ch-shimamoto@ct.jp.nec.com\u003e\nReviewed-by: Vincent Guittot \u003cvincent.guittot@linaro.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/4F2754A0.9090306@ct.jp.nec.com\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "30fd049afcfed50e022704036e8629d6bdfe84e6",
      "tree": "829472524c157f1d7a769d088b2f9b70c9779c11",
      "parents": [
        "4ec4412e1e91f44a3dcb97b6c9172a13fc78bac9"
      ],
      "author": {
        "name": "Rakib Mullick",
        "email": "rakib.mullick@gmail.com",
        "time": "Tue Jan 24 22:33:56 2012 +0600"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Fri Jan 27 13:28:53 2012 +0100"
      },
      "message": "sched: Remove sched_switch\n\nCurrently we don\u0027t utilize the sched_switch field anymore.\n\nBut, simply removing sched_switch field from the middle of the\nsched_stat output will break tools.\n\nSo, to stay compatible we hardcode it to zero and remove the\nfield from the scheduler data structures.\n\nUpdate the schedstat documentation accordingly.\n\nSigned-off-by: Rakib Mullick \u003crakib.mullick@gmail.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1327422836.27181.5.camel@localhost.localdomain\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "4ec4412e1e91f44a3dcb97b6c9172a13fc78bac9",
      "tree": "a98f635907975c2f14c01c24418e102337250b8d",
      "parents": [
        "39be350127ec60a078edffe5b4915dafba4ba514"
      ],
      "author": {
        "name": "Vincent Guittot",
        "email": "vincent.guittot@linaro.org",
        "time": "Mon Dec 12 20:21:08 2011 +0100"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Fri Jan 27 13:28:49 2012 +0100"
      },
      "message": "sched: Ensure cpu_power periodic update\n\nWith a lot of small tasks, the softirq sched is nearly never called\nwhen no_hz is enabled. In this case load_balance() is mainly called\nwith the newly_idle mode which doesn\u0027t update the cpu_power.\n\nAdd a next_update field which ensure a maximum update period when\nthere is short activity.\n\nHaving stale cpu_power information can skew the load-balancing\ndecisions, this is cured by the guaranteed update.\n\nSigned-off-by: Vincent Guittot \u003cvincent.guittot@linaro.org\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1323717668-2143-1-git-send-email-vincent.guittot@linaro.org\n"
    },
    {
      "commit": "39be350127ec60a078edffe5b4915dafba4ba514",
      "tree": "9b1ad6ee75c3b5842434b697b96ccdfbe1a40a2f",
      "parents": [
        "cb297a3e433dbdcf7ad81e0564e7b804c941ff0d"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Thu Jan 26 12:44:34 2012 +0100"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Fri Jan 27 13:28:48 2012 +0100"
      },
      "message": "sched, block: Unify cache detection\n\nThe block layer has some code trying to determine if two CPUs share a\ncache, the scheduler has a similar function. Expose the function used\nby the scheduler and make the block layer use it, thereby removing the\nblock layers usage of CONFIG_SCHED* and topology bits.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Jens Axboe \u003caxboe@kernel.dk\u003e\nLink: http://lkml.kernel.org/r/1327579450.2446.95.camel@twins\n"
    }
  ],
  "next": "cb297a3e433dbdcf7ad81e0564e7b804c941ff0d"
}