)]}'
{
  "log": [
    {
      "commit": "b10eec2246690f069febd3aa9578decd5ffb3f5b",
      "tree": "789c892dc6c2ec4e1aca1ab52fd068815c7f4692",
      "parents": [
        "8c362a5d62c98ee117b229c3555f402e72f5c21e"
      ],
      "author": {
        "name": "Jan Beulich",
        "email": "jbeulich@novell.com",
        "time": "Fri Apr 28 13:47:13 2006 +0200"
      },
      "committer": {
        "name": "Dave Jones",
        "email": "davej@redhat.com",
        "time": "Sun Jun 04 19:47:38 2006 -0400"
      },
      "message": "[CPUFREQ] cpufreq core {d,}printk adjustments\n\nRemove KERN_* suffixes from some cpufreq driver\u0027s dprintk-s.\n\nSigned-off-by: Jan Beulich \u003cjbeulich@novell.com\u003e\nSigned-off-by: Dave Jones \u003cdavej@redhat.com\u003e\n"
    },
    {
      "commit": "83d722f7e198b034699b1500d98729beff930efd",
      "tree": "7d790a2fd62165373ec7bacde704837288e0bec3",
      "parents": [
        "649bbaa484bcdce94f40a1b97a6a2ded0549e8a2"
      ],
      "author": {
        "name": "Chandra Seetharaman",
        "email": "sekharan@us.ibm.com",
        "time": "Mon Apr 24 19:35:21 2006 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Wed Apr 26 08:30:03 2006 -0700"
      },
      "message": "[PATCH] Remove __devinit and __cpuinit from notifier_call definitions\n\nFew of the notifier_chain_register() callers use __init in the definition\nof notifier_call.  It is incorrect as the function definition should be\navailable after the initializations (they do not unregister them during\ninitializations).\n\nThis patch fixes all such usages to _not_ have the notifier_call __init\nsection.\n\nSigned-off-by: Chandra Seetharaman \u003csekharan@us.ibm.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "7b14dedd1fe72f33e128ed1b0cbf96d06acc7e9c",
      "tree": "4edf20b5097bb4da400552852ee66ad8d1e32c27",
      "parents": [
        "7970e08bf066900efcd7794a1a338c11eb8f5141"
      ],
      "author": {
        "name": "Adrian Bunk",
        "email": "bunk@stusta.de",
        "time": "Tue Apr 18 17:06:13 2006 +0200"
      },
      "committer": {
        "name": "Dave Jones",
        "email": "davej@redhat.com",
        "time": "Tue Apr 18 17:24:52 2006 -0500"
      },
      "message": "[CPUFREQ] drivers/cpufreq/cpufreq.c: static functions mustn\u0027t be exported\n\nThis patch removes the EXPORT_SYMBOL_GPL of the static function cpufreq_parse_governor().\n\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\nSigned-off-by: Dave Jones \u003cdavej@redhat.com\u003e\n"
    },
    {
      "commit": "7970e08bf066900efcd7794a1a338c11eb8f5141",
      "tree": "bde8036f2d2aab1d85e8704bd69bd3f587d407a4",
      "parents": [
        "f1f76afd71e0f17af9a35fcb649f4bab53304a4d"
      ],
      "author": {
        "name": "Thomas Renninger",
        "email": "trenn@suse.de",
        "time": "Thu Apr 13 15:14:04 2006 +0200"
      },
      "committer": {
        "name": "Dave Jones",
        "email": "davej@redhat.com",
        "time": "Tue Apr 18 17:24:52 2006 -0500"
      },
      "message": "[CPUFREQ] If max_freq got reduced (e.g. by _PPC) a write to sysfs scaling_governor let cpufreq core stuck at low max_freq for ever\n\nThe previous patch had bugs (locking and refcount).\n\nThis one could also be related to the latest DELL reports.\nBut they only slip into this if a user prog (e.g. powersave daemon does when\nAC got (un) plugged due to a scheme change) echos something to\n/sys/../cpufreq/scaling_governor\nwhile the frequencies got limited by BIOS.\n\nThis one works:\n\nSubject: Max freq stucks at low freq if reduced by _PPC and sysfs gov access\n\nThe problem is reproducable by(if machine is limiting freqs via BIOS):\n - Unplugging AC -\u003e max freq gets limited\n - echo ${governor} \u003e/sys/.../cpufreq/scaling_governor (policy-\u003euser_data.max\n   gets overridden with policy-\u003emax and will never come up again.)\n\nThis patch exchanged the cpufreq_set_policy call to __cpufreq_set_policy and\nduplicated it\u0027s functionality but did not override user_data.max.\nThe same happens with overridding min/max values. If freqs are limited and\nyou override the min freq value, the max freq global value will also get\nstuck to the limited freq, even if BIOS allows all freqs again.\nLast scenario does only happen if BIOS does not reduce the frequency\nto the lowest value (should never happen, just for correctness...)\n\n drivers/cpufreq/cpufreq.c |   17 +++++++++++++++--\n 1 files changed, 15 insertions(+), 2 deletions(-)\n\nSigned-off-by: Thomas Renninger \u003ctrenn@suse.de\u003e\nSigned-off-by: \"Pallipadi, Venkatesh\" \u003cvenkatesh.pallipadi@intel.com\u003e\nSigned-off-by: Dave Jones \u003cdavej@redhat.com\u003e\n"
    },
    {
      "commit": "87c32271380e630955de365656f67b0a54b75b19",
      "tree": "ecf0100a60b1a34221d5a82ac920d97c92f83f8c",
      "parents": [
        "1f8b2c9d38c132e79e18cc726cf7a40ebdcb56d9"
      ],
      "author": {
        "name": "Dave Jones",
        "email": "davej@redhat.com",
        "time": "Wed Mar 29 01:48:37 2006 -0500"
      },
      "committer": {
        "name": "Dave Jones",
        "email": "davej@redhat.com",
        "time": "Wed Mar 29 01:48:37 2006 -0500"
      },
      "message": "[CPUFREQ] trailing whitespace removal de-jour.\n\nSigned-off-by: Dave Jones \u003cdavej@redhat.com\u003e\n"
    },
    {
      "commit": "1f8b2c9d38c132e79e18cc726cf7a40ebdcb56d9",
      "tree": "5ffa5b3e15d3fb0369777a4ec5b1dfb09fd162c0",
      "parents": [
        "224b148ef7c9a00642eb33dbdf62f2840bde974f"
      ],
      "author": {
        "name": "Dave Jones",
        "email": "davej@redhat.com",
        "time": "Wed Mar 29 01:40:04 2006 -0500"
      },
      "committer": {
        "name": "Dave Jones",
        "email": "davej@redhat.com",
        "time": "Wed Mar 29 01:40:04 2006 -0500"
      },
      "message": "[CPUFREQ] extra debugging in cpufreq_add_dev()\n\nSnipped from an otherwise rejected patch by Jan Beulich \u003cjbeulich@novell.com\u003e\nSigned-off-by: Dave Jones \u003cdavej@redhat.com\u003e\n"
    },
    {
      "commit": "e041c683412d5bf44dc2b109053e3b837b71742d",
      "tree": "9d271066ef379da0c0fb3b8cb4137abd5d2ebba0",
      "parents": [
        "76b81e2b0e2241accebcc68e126bc5ab958661b9"
      ],
      "author": {
        "name": "Alan Stern",
        "email": "stern@rowland.harvard.edu",
        "time": "Mon Mar 27 01:16:30 2006 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Mon Mar 27 08:44:50 2006 -0800"
      },
      "message": "[PATCH] Notifier chain update: API changes\n\nThe kernel\u0027s implementation of notifier chains is unsafe.  There is no\nprotection against entries being added to or removed from a chain while the\nchain is in use.  The issues were discussed in this thread:\n\n    http://marc.theaimsgroup.com/?l\u003dlinux-kernel\u0026m\u003d113018709002036\u0026w\u003d2\n\nWe noticed that notifier chains in the kernel fall into two basic usage\nclasses:\n\n\t\"Blocking\" chains are always called from a process context\n\tand the callout routines are allowed to sleep;\n\n\t\"Atomic\" chains can be called from an atomic context and\n\tthe callout routines are not allowed to sleep.\n\nWe decided to codify this distinction and make it part of the API.  Therefore\nthis set of patches introduces three new, parallel APIs: one for blocking\nnotifiers, one for atomic notifiers, and one for \"raw\" notifiers (which is\nreally just the old API under a new name).  New kinds of data structures are\nused for the heads of the chains, and new routines are defined for\nregistration, unregistration, and calling a chain.  The three APIs are\nexplained in include/linux/notifier.h and their implementation is in\nkernel/sys.c.\n\nWith atomic and blocking chains, the implementation guarantees that the chain\nlinks will not be corrupted and that chain callers will not get messed up by\nentries being added or removed.  For raw chains the implementation provides no\nguarantees at all; users of this API must provide their own protections.  (The\nidea was that situations may come up where the assumptions of the atomic and\nblocking APIs are not appropriate, so it should be possible for users to\nhandle these things in their own way.)\n\nThere are some limitations, which should not be too hard to live with.  For\natomic/blocking chains, registration and unregistration must always be done in\na process context since the chain is protected by a mutex/rwsem.  Also, a\ncallout routine for a non-raw chain must not try to register or unregister\nentries on its own chain.  (This did happen in a couple of places and the code\nhad to be changed to avoid it.)\n\nSince atomic chains may be called from within an NMI handler, they cannot use\nspinlocks for synchronization.  Instead we use RCU.  The overhead falls almost\nentirely in the unregister routine, which is okay since unregistration is much\nless frequent that calling a chain.\n\nHere is the list of chains that we adjusted and their classifications.  None\nof them use the raw API, so for the moment it is only a placeholder.\n\n  ATOMIC CHAINS\n  -------------\narch/i386/kernel/traps.c:\t\ti386die_chain\narch/ia64/kernel/traps.c:\t\tia64die_chain\narch/powerpc/kernel/traps.c:\t\tpowerpc_die_chain\narch/sparc64/kernel/traps.c:\t\tsparc64die_chain\narch/x86_64/kernel/traps.c:\t\tdie_chain\ndrivers/char/ipmi/ipmi_si_intf.c:\txaction_notifier_list\nkernel/panic.c:\t\t\t\tpanic_notifier_list\nkernel/profile.c:\t\t\ttask_free_notifier\nnet/bluetooth/hci_core.c:\t\thci_notifier\nnet/ipv4/netfilter/ip_conntrack_core.c:\tip_conntrack_chain\nnet/ipv4/netfilter/ip_conntrack_core.c:\tip_conntrack_expect_chain\nnet/ipv6/addrconf.c:\t\t\tinet6addr_chain\nnet/netfilter/nf_conntrack_core.c:\tnf_conntrack_chain\nnet/netfilter/nf_conntrack_core.c:\tnf_conntrack_expect_chain\nnet/netlink/af_netlink.c:\t\tnetlink_chain\n\n  BLOCKING CHAINS\n  ---------------\narch/powerpc/platforms/pseries/reconfig.c:\tpSeries_reconfig_chain\narch/s390/kernel/process.c:\t\tidle_chain\narch/x86_64/kernel/process.c\t\tidle_notifier\ndrivers/base/memory.c:\t\t\tmemory_chain\ndrivers/cpufreq/cpufreq.c\t\tcpufreq_policy_notifier_list\ndrivers/cpufreq/cpufreq.c\t\tcpufreq_transition_notifier_list\ndrivers/macintosh/adb.c:\t\tadb_client_list\ndrivers/macintosh/via-pmu.c\t\tsleep_notifier_list\ndrivers/macintosh/via-pmu68k.c\t\tsleep_notifier_list\ndrivers/macintosh/windfarm_core.c\twf_client_list\ndrivers/usb/core/notify.c\t\tusb_notifier_list\ndrivers/video/fbmem.c\t\t\tfb_notifier_list\nkernel/cpu.c\t\t\t\tcpu_chain\nkernel/module.c\t\t\t\tmodule_notify_list\nkernel/profile.c\t\t\tmunmap_notifier\nkernel/profile.c\t\t\ttask_exit_notifier\nkernel/sys.c\t\t\t\treboot_notifier_list\nnet/core/dev.c\t\t\t\tnetdev_chain\nnet/decnet/dn_dev.c:\t\t\tdnaddr_chain\nnet/ipv4/devinet.c:\t\t\tinetaddr_chain\n\nIt\u0027s possible that some of these classifications are wrong.  If they are,\nplease let us know or submit a patch to fix them.  Note that any chain that\ngets called very frequently should be atomic, because the rwsem read-locking\nused for blocking chains is very likely to incur cache misses on SMP systems.\n(However, if the chain\u0027s callout routines may sleep then the chain cannot be\natomic.)\n\nThe patch set was written by Alan Stern and Chandra Seetharaman, incorporating\nmaterial written by Keith Owens and suggestions from Paul McKenney and Andrew\nMorton.\n\n[jes@sgi.com: restructure the notifier chain initialization macros]\nSigned-off-by: Alan Stern \u003cstern@rowland.harvard.edu\u003e\nSigned-off-by: Chandra Seetharaman \u003csekharan@us.ibm.com\u003e\nSigned-off-by: Jes Sorensen \u003cjes@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "8ff69732d484ea9ccbf242cc49b4fe9538e64c71",
      "tree": "5b65e26af1cbf2f5c54ca9b3b35755ddeb2f40ee",
      "parents": [
        "2a1c1c877ecb446dbdf1715248e151db8719a87b"
      ],
      "author": {
        "name": "Dave Jones",
        "email": "davej@redhat.com",
        "time": "Sun Mar 05 03:37:23 2006 -0500"
      },
      "committer": {
        "name": "Dave Jones",
        "email": "davej@redhat.com",
        "time": "Sun Mar 05 03:37:23 2006 -0500"
      },
      "message": "[CPUFREQ] Fix handling for CPU hotplug\n\nThis patch adds proper logic to cpufreq driver in order to handle\nCPU Hotplug.\n\nWhen CPUs go on/offline, the affected CPUs data, cpufreq_policy-\u003ecpus,\nis not updated properly. This causes sysfs directories and symlinks to\nbe in an incorrect state after few CPU on/offlines.\n\nSigned-off-by: Jacob Shin \u003cjacob.shin@amd.com\u003e\nSigned-off-by: Dave Jones \u003cdavej@redhat.com\u003e\n"
    },
    {
      "commit": "32ee8c3e470d86588b51dc42ed01e85c5fa0f180",
      "tree": "d544cc24c37c02f44f9cf89cb5647d74a61d7ce6",
      "parents": [
        "8ad5496d2359a19127ad9f2eda69485025c9917f"
      ],
      "author": {
        "name": "Dave Jones",
        "email": "davej@redhat.com",
        "time": "Tue Feb 28 00:43:23 2006 -0500"
      },
      "committer": {
        "name": "Dave Jones",
        "email": "davej@redhat.com",
        "time": "Tue Feb 28 00:43:23 2006 -0500"
      },
      "message": "[CPUFREQ] Lots of whitespace \u0026 CodingStyle cleanup.\n\nSigned-off-by: Dave Jones \u003cdavej@redhat.com\u003e\n"
    },
    {
      "commit": "7d5e350fab47f1273bc8b52d5f133ed6e4baeb7f",
      "tree": "24318712260f30ea36db8e47c40a1ba5f0dd66a5",
      "parents": [
        "a85f7bd310dbc9010309bfe70b6b02432a11ef59"
      ],
      "author": {
        "name": "Dave Jones",
        "email": "davej@redhat.com",
        "time": "Thu Feb 02 17:03:42 2006 -0500"
      },
      "committer": {
        "name": "Dave Jones",
        "email": "davej@redhat.com",
        "time": "Thu Feb 02 17:03:42 2006 -0500"
      },
      "message": "[CPUFREQ] Whitespace/CodingStyle cleanups\n\nSigned-off-by: Dave Jones \u003cdavej@redhat.com\u003e\n"
    },
    {
      "commit": "a85f7bd310dbc9010309bfe70b6b02432a11ef59",
      "tree": "569a7cb38a5f99579a693749508fd01a9e9912c7",
      "parents": [
        "9d2725bb815d915fc6c8531097d9e71b579a8763"
      ],
      "author": {
        "name": "Thomas Renninger",
        "email": "trenn@suse.de",
        "time": "Wed Feb 01 11:36:04 2006 +0100"
      },
      "committer": {
        "name": "Dave Jones",
        "email": "davej@redhat.com",
        "time": "Thu Feb 02 16:56:41 2006 -0500"
      },
      "message": "[CPUFREQ] Check whether driver init did not initialize current freq\n\nCheck whether driver init did not initialize current freq\n\nSigned-off-by: Thomas Renninger \u003ctrenn@suse.de\u003e\nSigned-off-by: Dave Jones \u003cdavej@redhat.com\u003e\n"
    },
    {
      "commit": "e4472cb3706ceea42797ae1dc79d624026986694",
      "tree": "3b6276a2c0caca47fbf7b53f9ec26593ff0cf5fa",
      "parents": [
        "c0672860199ac009af7cf198a134ee7a4c3a9bb3"
      ],
      "author": {
        "name": "Dave Jones",
        "email": "davej@redhat.com",
        "time": "Tue Jan 31 15:53:55 2006 -0800"
      },
      "committer": {
        "name": "Dave Jones",
        "email": "davej@redhat.com",
        "time": "Tue Jan 31 15:53:55 2006 -0800"
      },
      "message": "[CPUFREQ] cpufreq_notify_transition cleanup.\n\nIntroduce caching of cpufreq_cpu_data[freqs-\u003ecpu], which allows us to\nmake the function a lot more readable, and as a nice side-effect, it\nnow fits in \u003c 80 column displays again.\n\nSigned-off-by: Dave Jones \u003cdavej@redhat.com\u003e\n"
    },
    {
      "commit": "0961dd0d217d072df736d964f47c2b6600931e19",
      "tree": "4f90dfb0f93608cd331a8e0b61f849bc9946451b",
      "parents": [
        "c70ca00f77eb1bb69c5a2d029b3a911bc88eac1b"
      ],
      "author": {
        "name": "Thomas Renninger",
        "email": "trenn@suse.de",
        "time": "Thu Jan 26 18:46:33 2006 +0100"
      },
      "committer": {
        "name": "Dave Jones",
        "email": "davej@redhat.com",
        "time": "Thu Jan 26 10:49:39 2006 -0800"
      },
      "message": "[CPUFREQ] _PPC frequency change issues\n\nBIOS might change frequency behind our back when BIOS changes allowed\nfrequencies via _PPC.  In this case cpufreq core got out of sync.\nAsk driver for current freq and notify governors about a change\n\nSigned-off-by: Thomas Renninger \u003ctrenn@suse.de\u003e\nSigned-off-by: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\nSigned-off-by: Dave Jones \u003cdavej@redhat.com\u003e\n"
    },
    {
      "commit": "f3876c1bc7a23d4712c824f2ef5ec7d138259594",
      "tree": "cbfe19995ff8d0aafe75bf1e7de6fadd050f5743",
      "parents": [
        "83933af4720b282f6f6a0b6c05a2a47b4cf08819"
      ],
      "author": {
        "name": "Andrew Morton",
        "email": "akpm@osdl.org",
        "time": "Wed Jan 18 13:40:54 2006 -0800"
      },
      "committer": {
        "name": "Dave Jones",
        "email": "davej@redhat.com",
        "time": "Wed Jan 18 13:53:46 2006 -0800"
      },
      "message": "[CPUFREQ] Don\u0027t free held mutex in cpufreq_add_dev()\n\nMake the cpufreq code play nicely with the mutex debugging code: don\u0027t free a\nheld mutex.\n\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Dave Jones \u003cdavej@redhat.com\u003e\n"
    },
    {
      "commit": "83933af4720b282f6f6a0b6c05a2a47b4cf08819",
      "tree": "7f78fd9684268cb7b4cecac8b440ab0b1c58a5da",
      "parents": [
        "3fc54d37ab64733448faf0185e19a80f070eb9e3"
      ],
      "author": {
        "name": "Arjan van de Ven",
        "email": "arjan@infradead.org",
        "time": "Sat Jan 14 16:01:49 2006 +0100"
      },
      "committer": {
        "name": "Dave Jones",
        "email": "davej@redhat.com",
        "time": "Wed Jan 18 13:53:45 2006 -0800"
      },
      "message": "[CPUFREQ] convert remaining cpufreq semaphore to a mutex\n\nThis one fell through the automation at first because it initializes the\nsemaphore to locked, but that\u0027s easily remedied\n\nSigned-off-by:  Arjan van de Ven \u003carjan@infradead.org\u003e\nSigned-off-by: Dave Jones \u003cdavej@redhat.com\u003e\n\n drivers/cpufreq/cpufreq.c |   37 +++++++++++++++++++------------------\n include/linux/cpufreq.h   |    3 ++-\n 2 files changed, 21 insertions(+), 19 deletions(-)\n"
    },
    {
      "commit": "3fc54d37ab64733448faf0185e19a80f070eb9e3",
      "tree": "58f373f0e519007795fe58d8663b53bab4cb4feb",
      "parents": [
        "7eb9b2f56c9812d03ac63031869bcc42151067b1"
      ],
      "author": {
        "name": "akpm@osdl.org",
        "email": "akpm@osdl.org",
        "time": "Fri Jan 13 15:54:22 2006 -0800"
      },
      "committer": {
        "name": "Dave Jones",
        "email": "davej@redhat.com",
        "time": "Wed Jan 18 13:53:45 2006 -0800"
      },
      "message": "[CPUFREQ] Convert drivers/cpufreq semaphores to mutexes.\n\nSemaphore to mutex conversion.\n\nThe conversion was generated via scripts, and the result was validated\nautomatically via a script as well.\n\nSigned-off-by: Arjan van de Ven \u003carjan@infradead.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Dave Jones \u003cdavej@redhat.com\u003e\n"
    },
    {
      "commit": "858119e159384308a5dde67776691a2ebf70df0f",
      "tree": "f360768f999d51edc0863917ce0bf79e88c0ec4c",
      "parents": [
        "b0a9499c3dd50d333e2aedb7e894873c58da3785"
      ],
      "author": {
        "name": "Arjan van de Ven",
        "email": "arjan@infradead.org",
        "time": "Sat Jan 14 13:20:43 2006 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Sat Jan 14 18:27:06 2006 -0800"
      },
      "message": "[PATCH] Unlinline a bunch of other functions\n\nRemove the \"inline\" keyword from a bunch of big functions in the kernel with\nthe goal of shrinking it by 30kb to 40kb\n\nSigned-off-by: Arjan van de Ven \u003carjan@infradead.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nAcked-by: Jeff Garzik \u003cjgarzik@pobox.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "95235ca2c20ac0b31a8eb39e2d599bcc3e9c9a10",
      "tree": "cdfbebe72a1563f1bfe16b0335da7f9ecb78a91d",
      "parents": [
        "9a7d82a89a8bf55b112f2a5c3b3f405eb95a4303"
      ],
      "author": {
        "name": "Venkatesh Pallipadi",
        "email": "venkatesh.pallipadi@intel.com",
        "time": "Fri Dec 02 10:43:20 2005 -0800"
      },
      "committer": {
        "name": "Dave Jones",
        "email": "davej@redhat.com",
        "time": "Tue Dec 06 19:35:11 2005 -0800"
      },
      "message": "[CPUFREQ] CPU frequency display in /proc/cpuinfo\n\nWhat is the value shown in \"cpu MHz\" of /proc/cpuinfo when CPUs are capable of\nchanging frequency?\n\nToday the answer is: It depends.\nOn i386:\nSMP kernel - It is always the boot frequency\nUP kernel - Scales with the frequency change and shows that was last set.\n\nOn x86_64:\nThere is one single variable cpu_khz that gets written by all the CPUs. So,\nthe frequency set by last CPU will be seen on /proc/cpuinfo of all the\nCPUs in the system. What you see also depends on whether you have constant_tsc\ncapable CPU or not.\n\nOn ia64:\nIt is always boot time frequency of a particular CPU that gets displayed.\n\nThe patch below changes this to:\nShow the last known frequency of the particular CPU, when cpufreq is present. If\ncpu doesnot support changing of frequency through cpufreq, then boot frequency\nwill be shown. The patch affects i386, x86_64 and ia64 architectures.\n\nSigned-off-by: Venkatesh Pallipadi\u003cvenkatesh.pallipadi@intel.com\u003e\nSigned-off-by: Dave Jones \u003cdavej@redhat.com\u003e\n"
    },
    {
      "commit": "a9d9baa1e819b2f92f9cfa5240f766c535e636a6",
      "tree": "0ae15e5b1071b395affa0ac9abf6fd746ad60b0e",
      "parents": [
        "e0f39591cc178026607fcbbe9a53be435fe8285d"
      ],
      "author": {
        "name": "Ashok Raj",
        "email": "ashok.raj@intel.com",
        "time": "Mon Nov 28 13:43:46 2005 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Mon Nov 28 14:42:23 2005 -0800"
      },
      "message": "[PATCH] clean up lock_cpu_hotplug() in cpufreq\n\nThere are some callers in cpufreq hotplug notify path that the lowest\nfunction calls lock_cpu_hotplug().  The lock is already held during\ncpu_up() and cpu_down() calls when the notify calls are broadcast to\nregistered clients.\n\nIdeally if possible, we could disable_preempt() at the highest caller and\nmake sure we dont sleep in the path down in cpufreq-\u003edriver_target() calls\nbut the calls are so intertwined and cumbersome to cleanup.\n\nHence we consistently use lock_cpu_hotplug() and unlock_cpu_hotplug() in\nall places.\n\n - Removed export of cpucontrol semaphore and made it static.\n - removed explicit uses of up/down with lock_cpu_hotplug()\n   so we can keep track of the the callers in same thread context and\n   just keep refcounts without calling a down() that causes a deadlock.\n - Removed current_in_hotplug() uses\n - Removed PF_HOTPLUG_CPU in sched.h introduced for the current_in_hotplug()\n   temporary workaround.\n\nTested with insmod of cpufreq_stat.ko, and logical online/offline\nto make sure we dont have any hang situations.\n\nSigned-off-by: Ashok Raj \u003cashok.raj@intel.com\u003e\nCc: Zwane Mwaikambo \u003czwane@linuxpower.ca\u003e\nCc: Shaohua Li \u003cshaohua.li@intel.com\u003e\nCc: \"Siddha, Suresh B\" \u003csuresh.b.siddha@intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "e738cf6d03786486b7e1adbaed1c5c4e14d23626",
      "tree": "b929202b33a993a38110aec3722d8fee75406c32",
      "parents": [
        "0bd0f9fb190a0fc0fb25b764c8b04869711f7657"
      ],
      "author": {
        "name": "Grant Coady",
        "email": "gcoady@gmail.com",
        "time": "Mon Nov 21 21:32:28 2005 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Tue Nov 22 09:13:44 2005 -0800"
      },
      "message": "[PATCH] cpufreq: silence cpufreq for UP\n\ndrivers/cpufreq/cpufreq.c: In function `cpufreq_remove_dev\u0027:\ndrivers/cpufreq/cpufreq.c:696: warning: unused variable `cpu_sys_dev\u0027\n\nSigned-off-by: Grant Coady \u003cgcoady@gmail.com\u003e\nCc: Dave Jones \u003cdavej@codemonkey.org.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "90d45d17f3e68608ac7ba8fc3d7acce022a19c8e",
      "tree": "615b2f21c3e02e0ec901febd180014fed64a6a01",
      "parents": [
        "330d57fb98a916fa8e1363846540dd420e99499a"
      ],
      "author": {
        "name": "Ashok Raj",
        "email": "ashok.raj@intel.com",
        "time": "Tue Nov 08 21:34:24 2005 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Wed Nov 09 07:55:50 2005 -0800"
      },
      "message": "[PATCH] cpu hotplug: fix locking in cpufreq drivers\n\nWhen calling target drivers to set frequency, we take cpucontrol lock.\nWhen we modified the code to accomodate CPU hotplug, there was an attempt\nto take a double lock of cpucontrol leading to a deadlock.  Since the\ncurrent thread context is already holding the cpucontrol lock, we dont need\nto make another attempt to acquire it.\n\nNow we leave a trace in current-\u003eflags indicating current thread already is\nunder cpucontrol lock held, so we dont attempt to do this another time.\n\nThanks to Andrew Morton for the beating:-)\n\nFrom: Brice Goglin \u003cBrice.Goglin@ens-lyon.org\u003e\n\n  Build fix\n\n(akpm: this patch is still unpleasant.  Ashok continues to look for a cleaner\nsolution, doesn\u0027t he?  ;))\n\nSigned-off-by: Ashok Raj \u003cashok.raj@intel.com\u003e\nSigned-off-by: Brice Goglin \u003cBrice.Goglin@ens-lyon.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "dad2ad82c5f058367df79de022bd12d36afcd065",
      "tree": "426a1a6ca8762356b375527768bedc2de0bd25e9",
      "parents": [
        "7079060f3e86ea4c1d4e9c1e356592ef9dcaaa1f",
        "b7fb358c7c36a14927d5523ea674e69f90c51d1d"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Mon Nov 07 13:28:20 2005 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Mon Nov 07 13:28:20 2005 -0800"
      },
      "message": "Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq\n"
    },
    {
      "commit": "c32b6b8e524d2c337767d312814484d9289550cf",
      "tree": "02e634b0b48db6eccc8774369366daa1893921ea",
      "parents": [
        "d434fca737bee0862625c2377b987a7713b6b487"
      ],
      "author": {
        "name": "Ashok Raj",
        "email": "ashok.raj@intel.com",
        "time": "Sun Oct 30 14:59:54 2005 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Sun Oct 30 17:37:14 2005 -0800"
      },
      "message": "[PATCH] create and destroy cpufreq sysfs entries based on cpu notifiers\n\ncpufreq entries in sysfs should only be populated when CPU is online state.\n When we either boot with maxcpus\u003dx and then boot the other cpus by echoing\nto sysfs online file, these entries should be created and destroyed when\nCPU_DEAD is notified.  Same treatement as cache entries under sysfs.\n\nWe place the processor in the lowest frequency, so hw managed P-State\ntransitions can still work on the other threads to save power.\n\nPrimary goal was to just make these directories appear/disapper dynamically.\n\nThere is one in this patch i had to do, which i really dont like myself but\nprobably best if someone handling the cpufreq infrastructure could give\nthis code right treatment if this is not acceptable.  I guess its probably\ngood for the first cut.\n\n- Converting lock_cpu_hotplug()/unlock_cpu_hotplug() to disable/enable preempt.\n  The locking was smack in the middle of the notification path, when the\n  hotplug is already holding the lock. I tried another solution to avoid this\n  so avoid taking locks if we know we are from notification path. The solution\n  was getting very ugly and i decided this was probably good for this iteration\n  until someone who understands cpufreq could do a better job than me.\n\n(akpm: export cpucontrol to GPL modules: drivers/cpufreq/cpufreq_stats.c now\ndoes lock_cpu_hotplug())\n\nSigned-off-by: Ashok Raj \u003cashok.raj@intel.com\u003e\nSigned-off-by: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\nCc: Dave Jones \u003cdavej@codemonkey.org.uk\u003e\nCc: Zwane Mwaikambo \u003czwane@holomorphy.com\u003e\nCc: Greg KH \u003cgreg@kroah.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "d434fca737bee0862625c2377b987a7713b6b487",
      "tree": "8df1f41731e094d3ad7e7a60b9c1c5013591016a",
      "parents": [
        "1aa1a9f98ffd06e288be4d85ed814c6cdbccce82"
      ],
      "author": {
        "name": "Ashok Raj",
        "email": "ashok.raj@intel.com",
        "time": "Sun Oct 30 14:59:52 2005 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Sun Oct 30 17:37:14 2005 -0800"
      },
      "message": "[PATCH] Remove cpu_sys_devices in cpufreq subsystem.\n\ncpu_sys_devices is redundant with the new API get_cpu_sysdev().  So nuking\nthis usage since its not needed.\n\nSigned-off-by: Ashok Raj \u003cashok.raj@intel.com\u003e\nSigned-off-by: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\nCc: Dave Jones \u003cdavej@codemonkey.org.uk\u003e\nCc: Zwane Mwaikambo \u003czwane@holomorphy.com\u003e\nCc: Greg KH \u003cgreg@kroah.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "e98df50c5200ae3c748d69002a8827afc9d2eae2",
      "tree": "885c86b8b573d22176435b51f146bc6177acc13c",
      "parents": [
        "bfdc708dc7d26fca66df0157b36356a2ba6166eb"
      ],
      "author": {
        "name": "Dave Jones",
        "email": "davej@redhat.com",
        "time": "Thu Oct 20 15:17:43 2005 -0700"
      },
      "committer": {
        "name": "Dave Jones",
        "email": "davej@redhat.com",
        "time": "Thu Oct 20 15:17:43 2005 -0700"
      },
      "message": "[CPUFREQ] kzalloc conversions for cpufreq core.\n\nSigned-off-by: Dave Jones \u003cdavej@redhat.com\u003e\n"
    },
    {
      "commit": "8085e1f1f0645fc6ddefcb54fdcba95808df5049",
      "tree": "9e275032a6084be99b2e7cd1d63bfd42b990d05a",
      "parents": [
        "6b39374a27eb4be7e9d82145ae270ba02ea90dc8"
      ],
      "author": {
        "name": "Venkatesh Pallipadi",
        "email": "venkatesh.pallipadi@intel.com",
        "time": "Thu Aug 25 13:14:06 2005 -0700"
      },
      "committer": {
        "name": "Dave Jones",
        "email": "davej@redhat.com",
        "time": "Wed Aug 31 22:21:28 2005 -0700"
      },
      "message": "[CPUFREQ] Bugfix: Call driver exit in cpufreq_add_dev error path\n\nA minor fix for cpufreq_add_dev() error path. We need to call driver-\u003eexit()\nif driver_init() call has succeeded.\n\nSigned-off-by: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\nSigned-off-by: Dave Jones \u003cdavej@redhat.com\u003e\n\n"
    },
    {
      "commit": "cc993cab0239cb07af329d2e18faac7888821075",
      "tree": "7fc0a36406bed058c6405c9a286b63362777a4a5",
      "parents": [
        "841e40b380a70933e8dc1184e0f9ba1c6cac48af"
      ],
      "author": {
        "name": "Dave Jones",
        "email": "davej@redhat.com",
        "time": "Thu Jul 28 09:43:56 2005 -0700"
      },
      "committer": {
        "name": "Dave Jones",
        "email": "davej@redhat.com",
        "time": "Thu Jul 28 09:43:56 2005 -0700"
      },
      "message": "Here are two possible cleanups in cpufreq.c:\n* ret has no need to be unsigned in cpufreq_driver_target()\n* ret has no need to be initialized in __cpufreq_governor()\n\nSigned-off-by: Jean Delvare \u003ckhali@linux-fr.org\u003e\nSigned-off-by: Dave Jones \u003cdavej@redhat.com\u003e\n"
    },
    {
      "commit": "e00d9967e3addea86dded46deefc5daec5d52e5a",
      "tree": "bd6f4fba60ac6173f6e8e4a61461c74c06e3fc9a",
      "parents": [
        "2a569579be87b5ba61f9b6c54fd5f9f307c53962"
      ],
      "author": {
        "name": "Bernard Blackham",
        "email": "bernard@blackham.com.au",
        "time": "Thu Jul 07 17:56:42 2005 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Thu Jul 07 18:23:43 2005 -0700"
      },
      "message": "[PATCH] pm: fix u32 vs. pm_message_t confusion in cpufreq\n\nFix u32 vs pm_message_t confusion in cpufreq.\n\nSigned-off-by: Bernard Blackham \u003cbernard@blackham.com.au\u003e\nSigned-off-by: Pavel Machek \u003cpavel@suse.cz\u003e\nCc: Dave Jones \u003cdavej@codemonkey.org.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "70f2817a43c89b784dc2ec3d06ba5bf3064f8235",
      "tree": "210bbd16599d4e402051e4ec30c82e70b8b427ef",
      "parents": [
        "6c1852a08e444a2e66367352a99c0e93c8bf3e97"
      ],
      "author": {
        "name": "Dmitry Torokhov",
        "email": "dtor_core@ameritech.net",
        "time": "Fri Apr 29 01:27:34 2005 -0500"
      },
      "committer": {
        "name": "Greg Kroah-Hartman",
        "email": "gregkh@suse.de",
        "time": "Mon Jun 20 15:15:03 2005 -0700"
      },
      "message": "[PATCH] sysfs: (rest) if show/store is missing return -EIO\n\nsysfs: fix the rest of the kernel so if an attribute doesn\u0027t\n       implement show or store method read/write will return\n       -EIO instead of 0 or -EINVAL or -EPERM.\n\nSigned-off-by: Dmitry Torokhov \u003cdtor@mail.ru\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n"
    },
    {
      "commit": "78ee998fd46ed4cc647ee442d2a5492f389ee27a",
      "tree": "409646f20f7aee409751091e9fc3b31e1ae65e9f",
      "parents": [
        "7eb53d88230e23f83b2e20a78955e1412fa7bb26"
      ],
      "author": {
        "name": "Dave Jones",
        "email": "davej@redhat.com",
        "time": "Tue May 31 19:03:43 2005 -0700"
      },
      "committer": {
        "name": "Dave Jones",
        "email": "davej@redhat.com",
        "time": "Tue May 31 19:03:43 2005 -0700"
      },
      "message": "[CPUFREQ] cpufreq-core: reduce warning messages.\n\ncpufreq core is printing out messages at KERN_WARNING level that the core\nrecovers from without intervention, and that the system administrator can\ndo nothing about.  Patch below reduces the severity of these messages to\ndebug.\n\nSigned-off-by: Matt Domsch \u003cMatt_Domsch@dell.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Dave Jones \u003cdavej@redhat.com\u003e\n\n"
    },
    {
      "commit": "ac09f698f1cda91e890fb75f4cb38253d60ff017",
      "tree": "f71a88464e5b5cb3f5246367bcc8ea0890f5fb0d",
      "parents": [
        "e521dca64e0f82d844928c5ee88d82fdced50cbe"
      ],
      "author": {
        "name": "Benjamin Herrenschmidt",
        "email": "benh@kernel.crashing.org",
        "time": "Mon May 02 16:25:10 2005 +1000"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@ppc970.osdl.org",
        "time": "Mon May 02 08:15:22 2005 -0700"
      },
      "message": "[PATCH] cpufreq annoying warning fix\n\nThe cpufreq core patch I sent earlier got only half-applied.  I added a\nflag to let the low level driver disable an annoying warning on\nsuspend/resume that is normal on ppc, but the \"resume\" part of it wasn\u0027t\napplied.\n\nThis just adds back that missing bit.  The original patch also reworked\nthe resume() function to avoid nesting too many if () statements along\nthe way I did the suspend() one, but I didn\u0027t include that in the patch\nbelow.\n\nSigned-off-by: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "42d4dc3f4e1ec1396371aac89d0dccfdd977191b",
      "tree": "c5b67100cde9769c56f6872a5675d67f0e5f0df5",
      "parents": [
        "c60c390620e0abb60d4ae8c43583714bda27763f"
      ],
      "author": {
        "name": "Benjamin Herrenschmidt",
        "email": "benh@kernel.crashing.org",
        "time": "Fri Apr 29 07:40:12 2005 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@ppc970.osdl.org",
        "time": "Fri Apr 29 07:40:12 2005 -0700"
      },
      "message": "[PATCH] Add suspend method to cpufreq core\n\nIn order to properly fix some issues with cpufreq vs. sleep on\nPowerBooks, I had to add a suspend callback to the pmac_cpufreq driver.\nI must force a switch to full speed before sleep and I switch back to\nprevious speed on resume.\n\nI also added a driver flag to disable the warnings in suspend/resume\nsince it is expected in this case to have different speed (and I want it\nto fixup the jiffies properly).\n\nSigned-off-by: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\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"
    }
  ]
}