)]}'
{
  "log": [
    {
      "commit": "024994310e10cd7632f43b6873558820308c1af1",
      "tree": "8afc91968962ce0adc322e6763b99df3fc70a41e",
      "parents": [
        "4e74339af6a59c061cf02f1ac497766bca1de19a"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Sat Sep 13 02:33:09 2008 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Sat Sep 13 14:41:51 2008 -0700"
      },
      "message": "cpuset: hotplug documentation fix\n\nIf all the cpus in a cpuset are offlined, the tasks in it will be moved to\nthe nearest ancestor with non-empty cpus.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "46b6d94eb04a718730c73b83db889341aad0515e",
      "tree": "cfa10eebe04cc0924d451496f2d79156e9d4b97c",
      "parents": [
        "d823f6bfec2844493c05961133895de21fa0e02d"
      ],
      "author": {
        "name": "Paul Jackson",
        "email": "pj@sgi.com",
        "time": "Fri Jul 04 10:00:09 2008 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Fri Jul 04 10:40:10 2008 -0700"
      },
      "message": "doc: document the relax_domain_level kernel boot argument\n\nDocument the kernel boot parameter: relax_domain_level\u003d.\n\nSigned-off-by: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Michael Kerrisk \u003cmtk.manpages@googlemail.com\u003e\nReviewed-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "985ee7f224cca8a0d622b24ec399f364c63fc274",
      "tree": "0d53400018d9866af2b04d7c0ccba735d6678595",
      "parents": [
        "51597acfd3c09073aeea94a0e6f76a931f8c22d2"
      ],
      "author": {
        "name": "Paul Jackson",
        "email": "pj@sgi.com",
        "time": "Fri Jul 04 10:00:01 2008 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Fri Jul 04 10:40:09 2008 -0700"
      },
      "message": "cpusets: document proc status cpus and mems allowed lists\n\nProvide a little documentation for the two new fields, Cpus_allowed_list\nand Mems_allowed_list, that were added to each /proc/\u003cpid\u003e/status file a\nwhile back.\n\nSigned-off-by: Paul Jackson \u003cpj@sgi.com\u003e\nAcked-by: Michael Kerrisk \u003cmtk.manpages@gmail.com\u003e\nCc: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "30e0e178193d4221abc9926b07a4c7661c7cc4a9",
      "tree": "f6ad7d54e810a97345ad82b55832a2dbfb3ca6e2",
      "parents": [
        "9bedbcb207ed9a571b239231d99c8fd4a34ae24d"
      ],
      "author": {
        "name": "Li Zefan",
        "email": "lizf@cn.fujitsu.com",
        "time": "Tue May 13 10:27:17 2008 +0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Thu Jun 19 09:45:36 2008 +0200"
      },
      "message": "cpuset: limit the input of cpuset.sched_relax_domain_level\n\nWe allow the inputs to be [-1 ... SD_LV_MAX), and return -EINVAL\nfor inputs outside this range.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Paul Menage \u003cmenage@google.com\u003e\nAcked-by: Paul Jackson \u003cpj@sgi.com\u003e\nAcked-by: Hidetoshi Seto \u003cseto.hidetoshi@jp.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n"
    },
    {
      "commit": "6a7d68e899b7f609708e7590784344f03640f774",
      "tree": "b4b12a178c78063c0adf106c8d1f5a1de03c6aa8",
      "parents": [
        "c337869d95011495fa181536786e74aa2d7ff031"
      ],
      "author": {
        "name": "Miao Xie",
        "email": "miaox@cn.fujitsu.com",
        "time": "Thu Jun 05 22:45:54 2008 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Fri Jun 06 11:29:08 2008 -0700"
      },
      "message": "cpusets: fix and update Documentation\n\nMake the doc consistent with current cpusets implementation.\n\nSigned-off-by: Miao Xie \u003cmiaox@cn.fujitsu.com\u003e\nAcked-by: Paul Jackson \u003cpj@sgi.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "786083667e0ced85ce17c4c0b6c57a9f47c5b9f2",
      "tree": "4519c51c3ec7d093fe0bafbbd67204a6f7b773b3",
      "parents": [
        "addf2c739d9015d3e9c0500b58a3af051cd58ea7"
      ],
      "author": {
        "name": "Paul Menage",
        "email": "menage@google.com",
        "time": "Tue Apr 29 01:00:26 2008 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Tue Apr 29 08:06:11 2008 -0700"
      },
      "message": "Cpuset hardwall flag: add a mem_hardwall flag to cpusets\n\nThis flag provides the hardwalling properties of mem_exclusive, without\nenforcing the exclusivity.  Either mem_hardwall or mem_exclusive is sufficient\nto prevent GFP_KERNEL allocations from passing outside the cpuset\u0027s assigned\nnodes.\n\nSigned-off-by: Paul Menage \u003cmenage@google.com\u003e\nAcked-by: Paul Jackson \u003cpj@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "4d5f35533fb9b2cd553cec6611195bcbfb7ffd84",
      "tree": "9b705cea38a00fe6c3eda29960b957f1b77e50ff",
      "parents": [
        "b758149c02638146a835f42097dd1950a6cae638"
      ],
      "author": {
        "name": "Hidetoshi Seto",
        "email": "seto.hidetoshi@jp.fujitsu.com",
        "time": "Tue Apr 15 14:03:17 2008 +0900"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Sat Apr 19 19:45:00 2008 +0200"
      },
      "message": "sched, cpuset: customize sched domains, docs\n\nThis patch introduces new feature of cpuset - sched domain customization.\n\nThis version provides a per-cpuset file \u0027sched_relax_domain_level\u0027 that\nenable us to change the searching range of scheduler, which used to limit\nhow many cpus the scheduler searches at some schedule events, such as\nwakening task and running out of runqueue.\n\nSigned-off-by: Hidetoshi Seto \u003cseto.hidetoshi@jp.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "0b720378d05d9f5101dd331d16a0957a764583f3",
      "tree": "f814d0935838081d5487ebefeafed374dd639f50",
      "parents": [
        "b97c74bddce4e2c6fef6b3b58910b4fd9eb7f3b8"
      ],
      "author": {
        "name": "KOSAKI Motohiro",
        "email": "kosaki.motohiro@jp.fujitsu.com",
        "time": "Sat Feb 23 15:23:41 2008 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Sat Feb 23 17:12:14 2008 -0800"
      },
      "message": "cpuset: trivial documentation fix s/N_MEMORY/N_HIGH_MEMORY/\n\nCurrent implementation of cpuset track N_HIGH_MEMORY instead N_MEMORY.\n(N_MEMORY doesn\u0027t exist in current implementation)\n\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nAcked-by: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Christoph Lameter \u003cclameter@sgi.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "8f5aa26c75b7722e80c0c5c5bb833d41865d7019",
      "tree": "7f1b27938b2732a70b99a65e49e83f1a77ac6aa9",
      "parents": [
        "73507f335f406ff31ceb97b39fa76eaee00f4f26"
      ],
      "author": {
        "name": "Paul Jackson",
        "email": "pj@sgi.com",
        "time": "Thu Feb 07 00:14:48 2008 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Thu Feb 07 08:42:23 2008 -0800"
      },
      "message": "cpusets: update_cpumask documentation fix\n\nUpdate cpuset documentation to match the October 2007 \"Fix cpusets\nupdate_cpumask\" changes that now apply changes to a cpusets \u0027cpus\u0027 allowed\nmask immediately to the cpus_allowed of the tasks in that cpuset.\n\nSigned-off-by: Paul Jackson \u003cpj@sgi.com\u003e\nAcked-by: Cliff Wickman \u003ccpw@sgi.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "029190c515f15f512ac85de8fc686d4dbd0ae731",
      "tree": "a946f9223d17e945141fef81f94a75b38e2cc6ef",
      "parents": [
        "2f2a3a46fcafa7a12d61454f67f932dfe7d84c60"
      ],
      "author": {
        "name": "Paul Jackson",
        "email": "pj@sgi.com",
        "time": "Thu Oct 18 23:40:20 2007 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Fri Oct 19 11:53:41 2007 -0700"
      },
      "message": "cpuset sched_load_balance flag\n\nAdd a new per-cpuset flag called \u0027sched_load_balance\u0027.\n\nWhen enabled in a cpuset (the default value) it tells the kernel scheduler\nthat the scheduler should provide the normal load balancing on the CPUs in\nthat cpuset, sometimes moving tasks from one CPU to a second CPU if the\nsecond CPU is less loaded and if that task is allowed to run there.\n\nWhen disabled (write \"0\" to the file) then it tells the kernel scheduler\nthat load balancing is not required for the CPUs in that cpuset.\n\nNow even if this flag is disabled for some cpuset, the kernel may still\nhave to load balance some or all the CPUs in that cpuset, if some\noverlapping cpuset has its sched_load_balance flag enabled.\n\nIf there are some CPUs that are not in any cpuset whose sched_load_balance\nflag is enabled, the kernel scheduler will not load balance tasks to those\nCPUs.\n\nMoreover the kernel will partition the \u0027sched domains\u0027 (non-overlapping\nsets of CPUs over which load balancing is attempted) into the finest\ngranularity partition that it can find, while still keeping any two CPUs\nthat are in the same shed_load_balance enabled cpuset in the same element\nof the partition.\n\nThis serves two purposes:\n 1) It provides a mechanism for real time isolation of some CPUs, and\n 2) it can be used to improve performance on systems with many CPUs\n    by supporting configurations in which load balancing is not done\n    across all CPUs at once, but rather only done in several smaller\n    disjoint sets of CPUs.\n\nThis mechanism replaces the earlier overloading of the per-cpuset\nflag \u0027cpu_exclusive\u0027, which overloading was removed in an earlier\npatch: cpuset-remove-sched-domain-hooks-from-cpusets\n\nSee further the Documentation and comments in the code itself.\n\n[akpm@linux-foundation.org: don\u0027t be weird]\nSigned-off-by: Paul Jackson \u003cpj@sgi.com\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "8793d854edbc2774943a4b0de3304dc73991159a",
      "tree": "380b3403a0fedfcce61d9af5af1ffbcc71017abf",
      "parents": [
        "81a6a5cdd2c5cd70874b88afe524ab09e9e869af"
      ],
      "author": {
        "name": "Paul Menage",
        "email": "menage@google.com",
        "time": "Thu Oct 18 23:39:39 2007 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Fri Oct 19 11:53:36 2007 -0700"
      },
      "message": "Task Control Groups: make cpusets a client of cgroups\n\nRemove the filesystem support logic from the cpusets system and makes cpusets\na cgroup subsystem\n\nThe \"cpuset\" filesystem becomes a dummy filesystem; attempts to mount it get\npassed through to the cgroup filesystem with the appropriate options to\nemulate the old cpuset filesystem behaviour.\n\nSigned-off-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Serge E. Hallyn \u003cserue@us.ibm.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Dave Hansen \u003chaveblue@us.ibm.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Kirill Korotaev \u003cdev@openvz.org\u003e\nCc: Herbert Poetzl \u003cherbert@13thfloor.at\u003e\nCc: Srivatsa Vaddagiri \u003cvatsa@in.ibm.com\u003e\nCc: Cedric Le Goater \u003cclg@fr.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "607717a65d92858fd925bec05baae4d142719f27",
      "tree": "b7faea733fe3426881e63bc7549db9c97c8bdf59",
      "parents": [
        "2ed6dc34f9ed39bb8e4c81ea1056f0ba56315841"
      ],
      "author": {
        "name": "Paul Jackson",
        "email": "pj@sgi.com",
        "time": "Tue Oct 16 01:27:43 2007 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Tue Oct 16 09:43:09 2007 -0700"
      },
      "message": "cpuset: remove sched domain hooks from cpusets\n\nRemove the cpuset hooks that defined sched domains depending on the setting\nof the \u0027cpu_exclusive\u0027 flag.\n\nThe cpu_exclusive flag can only be set on a child if it is set on the\nparent.\n\nThis made that flag painfully unsuitable for use as a flag defining a\npartitioning of a system.\n\nIt was entirely unobvious to a cpuset user what partitioning of sched\ndomains they would be causing when they set that one cpu_exclusive bit on\none cpuset, because it depended on what CPUs were in the remainder of that\ncpusets siblings and child cpusets, after subtracting out other\ncpu_exclusive cpusets.\n\nFurthermore, there was no way on production systems to query the\nresult.\n\nUsing the cpu_exclusive flag for this was simply wrong from the get go.\n\nFortunately, it was sufficiently borked that so far as I know, almost no\nsuccessful use has been made of this.  One real time group did use it to\naffectively isolate CPUs from any load balancing efforts.  They are willing\nto adapt to alternative mechanisms for this, such as someway to manipulate\nthe list of isolated CPUs on a running system.  They can do without this\npresent cpu_exclusive based mechanism while we develop an alternative.\n\nThere is a real risk, to the best of my understanding, of users\naccidentally setting up a partitioned scheduler domains, inhibiting desired\nload balancing across all their CPUs, due to the nonobvious (from the\ncpuset perspective) side affects of the cpu_exclusive flag.\n\nFurthermore, since there was no way on a running system to see what one was\ndoing with sched domains, this change will be invisible to any using code.\nUnless they have real insight to the scheduler load balancing choices, they\nwill be unable to detect that this change has been made in the kernel\u0027s\nbehaviour.\n\nInitial discussion on lkml of this patch has generated much comment.  My\n(probably controversial) take on that discussion is that it has reached a\nrough concensus that the current cpuset cpu_exclusive mechanism for\ndefining sched domains is borked.  There is no concensus on the\nreplacement.  But since we can remove this mechanism, and since its\ncontinued presence risks causing unwanted partitioning of the schedulers\nload balancing, we should remove it while we can, as we proceed to work the\nreplacement scheduler domain mechanisms.\n\nSigned-off-by: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nCc: Christoph Lameter \u003cclameter@engr.sgi.com\u003e\nCc: Dinakar Guniguntala \u003cdino@in.ibm.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "0e1e7c7a739562a321fda07c7cd2a97a7114f8f8",
      "tree": "f2148e5b667152681625c19cf8b2a556500994ea",
      "parents": [
        "523b945855a1427000ffc707c610abe5947ae607"
      ],
      "author": {
        "name": "Christoph Lameter",
        "email": "clameter@sgi.com",
        "time": "Tue Oct 16 01:25:38 2007 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Tue Oct 16 09:42:59 2007 -0700"
      },
      "message": "Memoryless nodes: Use N_HIGH_MEMORY for cpusets\n\ncpusets try to ensure that any node added to a cpuset\u0027s mems_allowed is\non-line and contains memory.  The assumption was that online nodes contained\nmemory.  Thus, it is possible to add memoryless nodes to a cpuset and then add\ntasks to this cpuset.  This results in continuous series of oom-kill and\napparent system hang.\n\nChange cpusets to use node_states[N_HIGH_MEMORY] [a.k.a.  node_memory_map] in\nplace of node_online_map when vetting memories.  Return error if admin\nattempts to write a non-empty mems_allowed node mask containing only\nmemoryless-nodes.\n\nSigned-off-by: Lee Schermerhorn \u003clee.schermerhorn@hp.com\u003e\nSigned-off-by: Bob Picco \u003cbob.picco@hp.com\u003e\nSigned-off-by: Nishanth Aravamudan \u003cnacc@us.ibm.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Mel Gorman \u003cmel@skynet.ie\u003e\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "2400ff77e7025bf6ffb71afdcbfbdd9aa47dfc36",
      "tree": "6aade9c4ab95e81ef6385ed84d4dc2f4a5f9f2d4",
      "parents": [
        "bf703c3f199342da440a30798b6120f391741ffe"
      ],
      "author": {
        "name": "Simon Horman",
        "email": "horms@verge.net.au",
        "time": "Sun Apr 01 23:49:40 2007 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Mon Apr 02 10:06:08 2007 -0700"
      },
      "message": "[PATCH] CPUSETS: add mems to basic usage documentation\n\nIt seems that there must be at least one node in mems and at least one CPU\nin cpus in order to be able to assign tasks to a cpuset.  This makes sense.\n And I think it would also make sense to include a mems setting in the\nbasic usage section of the documentation.\n\nI also wonder if something logged to dmsg, explaining why a write failed,\nwould be a good enhancement.  I ended up having rummage arround in cpuset.c\nin order to work out why my configuration was failing.\n\nSigned-off-by: Simon Horman \u003chorms@verge.net.au\u003e\nAcked-by: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "38837fc75acb7fa9b0e111b0241fe4fe76c5d4b3",
      "tree": "51508cbc49527e35921efb4ba31bca7da9795ad2",
      "parents": [
        "af3ffa6758dbd2ab7ebe62dddf66b3aa94d64eeb"
      ],
      "author": {
        "name": "Paul Jackson",
        "email": "pj@sgi.com",
        "time": "Fri Sep 29 02:01:16 2006 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Fri Sep 29 09:18:21 2006 -0700"
      },
      "message": "[PATCH] cpuset: top_cpuset tracks hotplug changes to node_online_map\n\nChange the list of memory nodes allowed to tasks in the top (root) nodeset\nto dynamically track what cpus are online, using a call to a cpuset hook\nfrom the memory hotplug code.  Make this top cpus file read-only.\n\nOn systems that have cpusets configured in their kernel, but that aren\u0027t\nactively using cpusets (for some distros, this covers the majority of\nsystems) all tasks end up in the top cpuset.\n\nIf that system does support memory hotplug, then these tasks cannot make\nuse of memory nodes that are added after system boot, because the memory\nnodes are not allowed in the top cpuset.  This is a surprising regression\nover earlier kernels that didn\u0027t have cpusets enabled.\n\nOne key motivation for this change is to remain consistent with the\nbehaviour for the top_cpuset\u0027s \u0027cpus\u0027, which is also read-only, and which\nautomatically tracks the cpu_online_map.\n\nThis change also has the minor benefit that it fixes a long standing,\nlittle noticed, minor bug in cpusets.  The cpuset performance tweak to\nshort circuit the cpuset_zone_allowed() check on systems with just a single\ncpuset (see \u0027number_of_cpusets\u0027, in linux/cpuset.h) meant that simply\nchanging the \u0027mems\u0027 of the top_cpuset had no affect, even though the change\n(the write system call) appeared to succeed.  With the following change,\nthat write to the \u0027mems\u0027 file fails -EACCES, and the \u0027mems\u0027 file stubbornly\nrefuses to be changed via user space writes.  Thus no one should be mislead\ninto thinking they\u0027ve changed the top_cpusets\u0027s \u0027mems\u0027 when in affect they\nhaven\u0027t.\n\nIn order to keep the behaviour of cpusets consistent between systems\nactively making use of them and systems not using them, this patch changes\nthe behaviour of the \u0027mems\u0027 file in the top (root) cpuset, making it read\nonly, and making it automatically track the value of node_online_map.  Thus\ntasks in the top cpuset will have automatic use of hot plugged memory nodes\nallowed by their cpuset.\n\n[akpm@osdl.org: build fix]\n[bunk@stusta.de: build fix]\nSigned-off-by: Paul Jackson \u003cpj@sgi.com\u003e\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "4c4d50f7b39cc58f1064b93a61ad617451ae41df",
      "tree": "d55ec85fd917472e9859a17e34f8114a7e87892b",
      "parents": [
        "6394cca54894f6a9bcf927ab78d28985944298ff"
      ],
      "author": {
        "name": "Paul Jackson",
        "email": "pj@sgi.com",
        "time": "Sun Aug 27 01:23:51 2006 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Sun Aug 27 11:01:32 2006 -0700"
      },
      "message": "[PATCH] cpuset: top_cpuset tracks hotplug changes to cpu_online_map\n\nChange the list of cpus allowed to tasks in the top (root) cpuset to\ndynamically track what cpus are online, using a CPU hotplug notifier.  Make\nthis top cpus file read-only.\n\nOn systems that have cpusets configured in their kernel, but that aren\u0027t\nactively using cpusets (for some distros, this covers the majority of\nsystems) all tasks end up in the top cpuset.\n\nIf that system does support CPU hotplug, then these tasks cannot make use\nof CPUs that are added after system boot, because the CPUs are not allowed\nin the top cpuset.  This is a surprising regression over earlier kernels\nthat didn\u0027t have cpusets enabled.\n\nIn order to keep the behaviour of cpusets consistent between systems\nactively making use of them and systems not using them, this patch changes\nthe behaviour of the \u0027cpus\u0027 file in the top (root) cpuset, making it read\nonly, and making it automatically track the value of cpu_online_map.  Thus\ntasks in the top cpuset will have automatic use of hot plugged CPUs allowed\nby their cpuset.\n\nThanks to Anton Blanchard and Nathan Lynch for reporting this problem,\ndriving the fix, and earlier versions of this patch.\n\nSigned-off-by: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Nathan Lynch \u003cntl@pobox.com\u003e\nCc: Anton Blanchard \u003canton@samba.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "825a46af5ac171f9f41f794a0a00165588ba1589",
      "tree": "b690fe9d809d7b047f0393097fc79892e1217d98",
      "parents": [
        "8a39cc60bfa5a72f32d975729a354daca124f6de"
      ],
      "author": {
        "name": "Paul Jackson",
        "email": "pj@sgi.com",
        "time": "Fri Mar 24 03:16:03 2006 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Fri Mar 24 07:33:22 2006 -0800"
      },
      "message": "[PATCH] cpuset memory spread basic implementation\n\nThis patch provides the implementation and cpuset interface for an alternative\nmemory allocation policy that can be applied to certain kinds of memory\nallocations, such as the page cache (file system buffers) and some slab caches\n(such as inode caches).\n\nThe policy is called \"memory spreading.\" If enabled, it spreads out these\nkinds of memory allocations over all the nodes allowed to a task, instead of\npreferring to place them on the node where the task is executing.\n\nAll other kinds of allocations, including anonymous pages for a tasks stack\nand data regions, are not affected by this policy choice, and continue to be\nallocated preferring the node local to execution, as modified by the NUMA\nmempolicy.\n\nThere are two boolean flag files per cpuset that control where the kernel\nallocates pages for the file system buffers and related in kernel data\nstructures.  They are called \u0027memory_spread_page\u0027 and \u0027memory_spread_slab\u0027.\n\nIf the per-cpuset boolean flag file \u0027memory_spread_page\u0027 is set, then the\nkernel will spread the file system buffers (page cache) evenly over all the\nnodes that the faulting task is allowed to use, instead of preferring to put\nthose pages on the node where the task is running.\n\nIf the per-cpuset boolean flag file \u0027memory_spread_slab\u0027 is set, then the\nkernel will spread some file system related slab caches, such as for inodes\nand dentries evenly over all the nodes that the faulting task is allowed to\nuse, instead of preferring to put those pages on the node where the task is\nrunning.\n\nThe implementation is simple.  Setting the cpuset flags \u0027memory_spread_page\u0027\nor \u0027memory_spread_cache\u0027 turns on the per-process flags PF_SPREAD_PAGE or\nPF_SPREAD_SLAB, respectively, for each task that is in the cpuset or\nsubsequently joins that cpuset.  In subsequent patches, the page allocation\ncalls for the affected page cache and slab caches are modified to perform an\ninline check for these flags, and if set, a call to a new routine\ncpuset_mem_spread_node() returns the node to prefer for the allocation.\n\nThe cpuset_mem_spread_node() routine is also simple.  It uses the value of a\nper-task rotor cpuset_mem_spread_rotor to select the next node in the current\ntasks mems_allowed to prefer for the allocation.\n\nThis policy can provide substantial improvements for jobs that need to place\nthread local data on the corresponding node, but that need to access large\nfile system data sets that need to be spread across the several nodes in the\njobs cpuset in order to fit.  Without this patch, especially for jobs that\nmight have one thread reading in the data set, the memory allocation across\nthe nodes in the jobs cpuset can become very uneven.\n\nA couple of Copyright year ranges are updated as well.  And a couple of email\naddresses that can be found in the MAINTAINERS file are removed.\n\nSigned-off-by: Paul Jackson \u003cpj@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "b4fb376628e63bfc8071fc915b921da3db4a3385",
      "tree": "01863773f7d48792072b2a49aba9fa78df39eecc",
      "parents": [
        "4983da07f1e2e8dc81cb9d640fbf35b899cdbdf2"
      ],
      "author": {
        "name": "Christoph Lameter",
        "email": "clameter@sgi.com",
        "time": "Tue Mar 14 19:50:20 2006 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Tue Mar 14 21:43:02 2006 -0800"
      },
      "message": "[PATCH] Page migration documentation update\n\nUpdate the documentation for page migration.\n\n- Fix up bits and pieces in cpusets.txt\n\n- Rework text in vm/page-migration to be clearer and reflect the final\n  version of page migration in 2.6.16. Mention Andi Kleen\u0027s numactl\n  package that contains user space tools for page migration via\n  libnuma. Add reference to numa_maps and to the manpage in numactl.\n\n- Add todo list for outstanding issues\n\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nAcked-by: Paul Jackson \u003cpj@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "864913f30dbd6f75b94045cd20ea0b082996287e",
      "tree": "e0404880bf8d6aacdf8ad26d204f46b3e09f4afc",
      "parents": [
        "b56d55b69c5c787b279819f5c0c2d5f5864d0fc2"
      ],
      "author": {
        "name": "Paul Jackson",
        "email": "pj@sgi.com",
        "time": "Wed Jan 11 02:01:38 2006 +0100"
      },
      "committer": {
        "name": "Adrian Bunk",
        "email": "bunk@r063144.stusta.swh.mhn.de",
        "time": "Wed Jan 11 02:01:38 2006 +0100"
      },
      "message": "cpuset two little doc fixes\n\nTwo little cpuset documentation fixes.\n\nSigned-off-by: Paul Jackson \u003cpj@sgi.com\u003e\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\n"
    },
    {
      "commit": "90c9cc4043fd8454d11886379f841f70e176698e",
      "tree": "cec3cf3e440dd71aaec842e6f54fa3113284f8ba",
      "parents": [
        "bd5e09cf7054878a3db6a8c8bab1c2fabcd4f072"
      ],
      "author": {
        "name": "Paul Jackson",
        "email": "pj@sgi.com",
        "time": "Sun Jan 08 01:01:51 2006 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Sun Jan 08 20:13:43 2006 -0800"
      },
      "message": "[PATCH] cpuset: remove marker_pid documentation\n\nRemove documentation for the cpuset \u0027marker_pid\u0027 feature, that was in the\npatch \"cpuset: change marker for relative numbering\" That patch was previously\npulled from *-mm at my (pj) request.\n\nSigned-off-by: Paul Jackson \u003cpj@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "bd5e09cf7054878a3db6a8c8bab1c2fabcd4f072",
      "tree": "8038087b61ba0852495d20561bc227f0c3ae04f2",
      "parents": [
        "3e0d98b9f1eb757fc98efc84e74e54a08308aa73"
      ],
      "author": {
        "name": "Paul Jackson",
        "email": "pj@sgi.com",
        "time": "Sun Jan 08 01:01:50 2006 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Sun Jan 08 20:13:43 2006 -0800"
      },
      "message": "[PATCH] cpuset: document additional features\n\nDocument the additional cpuset features:\n\tnotify_on_release\n\tmarker_pid\n\tmemory_pressure\n\tmemory_pressure_enabled\n\nRearrange and improve formatting of existing documentation for\ncpu_exclusive and mem_exclusive features.\n\nSigned-off-by: Paul Jackson \u003cpj@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "45b07ef31d1182d2cfde7711327e3afb268bb1ac",
      "tree": "3bf820531f920b43d4ed963643b1f565c82bcaa4",
      "parents": [
        "d0d963281ccb22e6f339bfdd75c6b2e31351929f"
      ],
      "author": {
        "name": "Paul Jackson",
        "email": "pj@sgi.com",
        "time": "Sun Jan 08 01:00:56 2006 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Sun Jan 08 20:12:43 2006 -0800"
      },
      "message": "[PATCH] cpusets: swap migration interface\n\nAdd a boolean \"memory_migrate\" to each cpuset, represented by a file\ncontaining \"0\" or \"1\" in each directory below /dev/cpuset.\n\nIt defaults to false (file contains \"0\").  It can be set true by writing\n\"1\" to the file.\n\nIf true, then anytime that a task is attached to the cpuset so marked, the\npages of that task will be moved to that cpuset, preserving, to the extent\npractical, the cpuset-relative placement of the pages.\n\nAlso anytime that a cpuset so marked has its memory placement changed (by\nwriting to its \"mems\" file), the tasks in that cpuset will have their pages\nmoved to the cpusets new nodes, preserving, to the extent practical, the\ncpuset-relative placement of the moved pages.\n\nSigned-off-by: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Christoph Lameter \u003cchristoph@lameter.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "33430dc593f866f5d67ff6a6213b6dd6d7ea3ce1",
      "tree": "37958aa06ee458e73806c2ca95de0888ee20cc96",
      "parents": [
        "131dda7f8965a6b794dcde1d84f3ba5951a4d641"
      ],
      "author": {
        "name": "Jean Delvare",
        "email": "khali@linux-fr.org",
        "time": "Sun Oct 30 15:02:20 2005 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Sun Oct 30 17:37:20 2005 -0800"
      },
      "message": "[PATCH] Typo fix: explictly -\u003e explicitly\n\n(akpm: I don\u0027t do typo patches, but one of these is in a printk string)\n\nSigned-off-by: Jean Delvare \u003ckhali@linux-fr.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "d533f671852cc4e481ea7070aa1a3b6fc75b8e44",
      "tree": "970419f90c377dbcfb4d8726460d62ad8c8fbac4",
      "parents": [
        "9de75d110c9681d4aaa7fe87b8db99d5562012a2"
      ],
      "author": {
        "name": "Tobias Klauser",
        "email": "tklauser@nuerscht.ch",
        "time": "Sat Sep 10 00:26:46 2005 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Sat Sep 10 10:06:28 2005 -0700"
      },
      "message": "[PATCH] Spelling fixes for Documentation/\n\nThe attached patch fixes the following spelling errors in Documentation/\n        - double \"the\"\n        - Several misspellings of function/functionality\n        - infomation\n        - memeory\n        - Recieved\n        - wether\nand possibly others which I forgot ;-)\nTrailing whitespaces on the same line as the typo are also deleted.\n\nSigned-off-by: Tobias Klauser \u003ctklauser@nuerscht.ch\u003e\nSigned-off-by: Domen Puncer \u003cdomen@coderock.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "9bf2229f8817677127a60c177aefce1badd22d7b",
      "tree": "06e95863a26b197233081db1dafd869dfd231950",
      "parents": [
        "f90b1d2f1aaaa40c6519a32e69615edc25bb97d5"
      ],
      "author": {
        "name": "Paul Jackson",
        "email": "pj@sgi.com",
        "time": "Tue Sep 06 15:18:12 2005 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Wed Sep 07 16:57:40 2005 -0700"
      },
      "message": "[PATCH] cpusets: formalize intermediate GFP_KERNEL containment\n\nThis patch makes use of the previously underutilized cpuset flag\n\u0027mem_exclusive\u0027 to provide what amounts to another layer of memory placement\nresolution.  With this patch, there are now the following four layers of\nmemory placement available:\n\n 1) The whole system (interrupt and GFP_ATOMIC allocations can use this),\n 2) The nearest enclosing mem_exclusive cpuset (GFP_KERNEL allocations can use),\n 3) The current tasks cpuset (GFP_USER allocations constrained to here), and\n 4) Specific node placement, using mbind and set_mempolicy.\n\nThese nest - each layer is a subset (same or within) of the previous.\n\nLayer (2) above is new, with this patch.  The call used to check whether a\nzone (its node, actually) is in a cpuset (in its mems_allowed, actually) is\nextended to take a gfp_mask argument, and its logic is extended, in the case\nthat __GFP_HARDWALL is not set in the flag bits, to look up the cpuset\nhierarchy for the nearest enclosing mem_exclusive cpuset, to determine if\nplacement is allowed.  The definition of GFP_USER, which used to be identical\nto GFP_KERNEL, is changed to also set the __GFP_HARDWALL bit, in the previous\ncpuset_gfp_hardwall_flag patch.\n\nGFP_ATOMIC and GFP_KERNEL allocations will stay within the current tasks\ncpuset, so long as any node therein is not too tight on memory, but will\nescape to the larger layer, if need be.\n\nThe intended use is to allow something like a batch manager to handle several\njobs, each job in its own cpuset, but using common kernel memory for caches\nand such.  Swapper and oom_kill activity is also constrained to Layer (2).  A\ntask in or below one mem_exclusive cpuset should not cause swapping on nodes\nin another non-overlapping mem_exclusive cpuset, nor provoke oom_killing of a\ntask in another such cpuset.  Heavy use of kernel memory for i/o caching and\nsuch by one job should not impact the memory available to jobs in other\nnon-overlapping mem_exclusive cpusets.\n\nThis patch enables providing hardwall, inescapable cpusets for memory\nallocations of each job, while sharing kernel memory allocations between\nseveral jobs, in an enclosing mem_exclusive cpuset.\n\nLike Dinakar\u0027s patch earlier to enable administering sched domains using the\ncpu_exclusive flag, this patch also provides a useful meaning to a cpuset flag\nthat had previously done nothing much useful other than restrict what cpuset\nconfigurations were allowed.\n\nSigned-off-by: Paul Jackson \u003cpj@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "85d7b94981e2e919697bc235aad7367b33c3864b",
      "tree": "79d7705a897abde11b5f2f967bf24487aaeea354",
      "parents": [
        "1a20ff27ef75d866730ee796acd811a925af762f"
      ],
      "author": {
        "name": "Dinakar Guniguntala",
        "email": "dino@in.ibm.com",
        "time": "Sat Jun 25 14:57:34 2005 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@ppc970.osdl.org",
        "time": "Sat Jun 25 16:24:45 2005 -0700"
      },
      "message": "[PATCH] Dynamic sched domains: cpuset changes\n\nAdds the core update_cpu_domains code and updated cpusets documentation\n\nSigned-off-by: Dinakar Guniguntala \u003cdino@in.ibm.com\u003e\nAcked-by: Paul Jackson \u003cpj@sgi.com\u003e\nAcked-by: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "b39c4fab259b216148e705344a892c96efe1946d",
      "tree": "6419f40168e5b9a1eab2a6d413e85d82975dd6b2",
      "parents": [
        "b2665f92ae67a2d086537979d317a6f3a5697c63"
      ],
      "author": {
        "name": "Paul Jackson",
        "email": "pj@sgi.com",
        "time": "Fri May 20 13:59:15 2005 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@ppc970.osdl.org",
        "time": "Fri May 20 15:48:19 2005 -0700"
      },
      "message": "[PATCH] cpusets+hotplug+preepmt broken\n\nThis patch removes the entwining of cpusets and hotplug code in the \"No\nmore Mr.  Nice Guy\" case of sched.c move_task_off_dead_cpu().\n\nSince the hotplug code is holding a spinlock at this point, we cannot take\nthe cpuset semaphore, cpuset_sem, as would seem to be required either to\nupdate the tasks cpuset, or to scan up the nested cpuset chain, looking for\nthe nearest cpuset ancestor that still has some CPUs that are online.  So\nwe just punt and blast the tasks cpus_allowed with all bits allowed.\n\nThis reverts these lines of code to what they were before the cpuset patch.\n And it updates the cpuset Doc file, to match.\n\nThe one known alternative to this that seems to work came from Dinakar\nGuniguntala, and required the hotplug code to take the cpuset_sem semaphore\nmuch earlier in its processing.  So far as we know, the increased locking\nentanglement between cpusets and hot plug of this alternative approach is\nnot worth doing in this case.\n\nSigned-off-by: Paul Jackson \u003cpj@sgi.com\u003e\nAcked-by: Nathan Lynch \u003cntl@pobox.com\u003e\nAcked-by: Dinakar Guniguntala \u003cdino@in.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
      "tree": "0bba044c4ce775e45a88a51686b5d9f90697ea9d",
      "parents": [],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@ppc970.osdl.org",
        "time": "Sat Apr 16 15:20:36 2005 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@ppc970.osdl.org",
        "time": "Sat Apr 16 15:20:36 2005 -0700"
      },
      "message": "Linux-2.6.12-rc2\n\nInitial git repository build. I\u0027m not bothering with the full history,\neven though we have it. We can create a separate \"historical\" git\narchive of that later if we want to, and in the meantime it\u0027s about\n3.2GB when imported into git - space that would just make the early\ngit days unnecessarily complicated, when we don\u0027t have a lot of good\ninfrastructure for it.\n\nLet it rip!\n"
    }
  ]
}