)]}'
{
  "log": [
    {
      "commit": "d98808a253f209465ed9f415c565f4c294a213b8",
      "tree": "4d60da0dc3a2ad367edbb2c3c51c352bce7da918",
      "parents": [
        "e2e77098764636456ba7092a8b3b3b34b2a8e8d8"
      ],
      "author": {
        "name": "Julia Lawall",
        "email": "julia@diku.dk",
        "time": "Thu May 26 16:25:59 2011 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu May 26 17:12:37 2011 -0700"
      },
      "message": "drivers/char/ppdev.c: put gotten port value\n\nparport_find_number() calls parport_get_port() on its result, so there\nshould be a corresponding call to parport_put_port() before dropping the\nreference.  Similar code is found in the function register_device() in the\nsame file.\n\nThe semantic match that finds this problem is as follows:\n(http://coccinelle.lip6.fr/)\n\n  // \u003csmpl\u003e\n  @exists@\n  local idexpression struct parport * x;\n  expression ra,rr;\n  statement S1,S2;\n  @@\n\n  x \u003d parport_find_number(...)\n  ... when !\u003d x \u003d rr\n      when any\n      when !\u003d parport_put_port(x,...)\n      when !\u003d if (...) { ... parport_put_port(x,...) ...}\n  (\n  if(\u003c+...x...+\u003e) S1 else S2\n  |\n  if(...) { ... when !\u003d x \u003d ra\n       when forall\n       when !\u003d parport_put_port(x,...)\n  *return...;\n  }\n  )\n  // \u003c/smpl\u003e\n\nSigned-off-by: Julia Lawall \u003cjulia@diku.dk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "b9b1134260e036fb75c468514569864dd6722f3e",
      "tree": "1b93c6c85e6ed6aaf582f91ed9827586de002730",
      "parents": [
        "19714a8af8fe8618a9beace1f7a3bb10d55d5e2f"
      ],
      "author": {
        "name": "Vasiliy Kulikov",
        "email": "segooon@gmail.com",
        "time": "Wed Oct 27 15:34:21 2010 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Oct 27 18:03:14 2010 -0700"
      },
      "message": "drivers/char/ppdev.c: fix information leak to userland\n\nStructure par_timeout is copied to userland with some padding fields\nunitialized.  Field tv_usec has type __kernel_suseconds_t, it differs from\ntv_sec\u0027s type on some architectures.  It leads to leaking of stack memory.\n\nSigned-off-by: Vasiliy Kulikov \u003csegooon@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "613655fa39ff6957754fa8ceb8559980920eb8ee",
      "tree": "ad19600cb81207b24188683d7fc4ae88013339d1",
      "parents": [
        "609146fdb319cebce93be550938ab852f7bade90"
      ],
      "author": {
        "name": "Arnd Bergmann",
        "email": "arnd@arndb.de",
        "time": "Wed Jun 02 14:28:52 2010 +0200"
      },
      "committer": {
        "name": "Arnd Bergmann",
        "email": "arnd@arndb.de",
        "time": "Tue Oct 05 15:01:04 2010 +0200"
      },
      "message": "drivers: autoconvert trivial BKL users to private mutex\n\nAll these files use the big kernel lock in a trivial\nway to serialize their private file operations,\ntypically resulting from an earlier semi-automatic\npushdown from VFS.\n\nNone of these drivers appears to want to lock against\nother code, and they all use the BKL as the top-level\nlock in their file operations, meaning that there\nis no lock-order inversion problem.\n\nConsequently, we can remove the BKL completely,\nreplacing it with a per-file mutex in every case.\nUsing a scripted approach means we can avoid\ntypos.\n\nThese drivers do not seem to be under active\nmaintainance from my brief investigation. Apologies\nto those maintainers that I have missed.\n\nfile\u003d$1\nname\u003d$2\nif grep -q lock_kernel ${file} ; then\n    if grep -q \u0027include.*linux.mutex.h\u0027 ${file} ; then\n            sed -i \u0027/include.*\u003clinux\\/smp_lock.h\u003e/d\u0027 ${file}\n    else\n            sed -i \u0027s/include.*\u003clinux\\/smp_lock.h\u003e.*$/include \u003clinux\\/mutex.h\u003e/g\u0027 ${file}\n    fi\n    sed -i ${file} \\\n        -e \"/^#include.*linux.mutex.h/,$ {\n                1,/^\\(static\\|int\\|long\\)/ {\n                     /^\\(static\\|int\\|long\\)/istatic DEFINE_MUTEX(${name}_mutex);\n\n} }\"  \\\n    -e \"s/\\(un\\)*lock_kernel\\\u003e[ ]*()/mutex_\\1lock(\\\u0026${name}_mutex)/g\" \\\n    -e \u0027/[      ]*cycle_kernel_lock();/d\u0027\nelse\n    sed -i -e \u0027/include.*\\\u003csmp_lock.h\\\u003e/d\u0027 ${file}  \\\n                -e \u0027/cycle_kernel_lock()/d\u0027\nfi\n\nSigned-off-by: Arnd Bergmann \u003carnd@arndb.de\u003e\n"
    },
    {
      "commit": "87575437d8173c7da48a4dee25399807c7bec9cb",
      "tree": "38937f38ab2ad2ea5105c689f2924db4f61e0de2",
      "parents": [
        "56d611a04fb2db77334e06274de4daed92e2c626"
      ],
      "author": {
        "name": "Julia Lawall",
        "email": "julia@diku.dk",
        "time": "Wed May 26 14:43:55 2010 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu May 27 09:12:50 2010 -0700"
      },
      "message": "drivers/char/ppdev.c: use kasprintf\n\nkasprintf combines kmalloc and sprintf, and takes care of the size\ncalculation itself.\n\nThe semantic patch that makes this change is as follows:\n(http://coccinelle.lip6.fr/)\n\n// \u003csmpl\u003e\n@@\nexpression a,flag;\nexpression list args;\nstatement S;\n@@\n\n  a \u003d\n-  \\(kmalloc\\|kzalloc\\)(...,flag)\n+  kasprintf(flag,args)\n  \u003c... when !\u003d a\n  if (a \u003d\u003d NULL || ...) S\n  ...\u003e\n- sprintf(a,args);\n// \u003c/smpl\u003e\n\nSigned-off-by: Julia Lawall \u003cjulia@diku.dk\u003e\nCc: Michael Buesch \u003cmb@bu3sch.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "5a0e3ad6af8660be21ca98a971cd00f331318c05",
      "tree": "5bfb7be11a03176a87296a43ac6647975c00a1d1",
      "parents": [
        "ed391f4ebf8f701d3566423ce8f17e614cde9806"
      ],
      "author": {
        "name": "Tejun Heo",
        "email": "tj@kernel.org",
        "time": "Wed Mar 24 17:04:11 2010 +0900"
      },
      "committer": {
        "name": "Tejun Heo",
        "email": "tj@kernel.org",
        "time": "Tue Mar 30 22:02:32 2010 +0900"
      },
      "message": "include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h\n\npercpu.h is included by sched.h and module.h and thus ends up being\nincluded when building most .c files.  percpu.h includes slab.h which\nin turn includes gfp.h making everything defined by the two files\nuniversally available and complicating inclusion dependencies.\n\npercpu.h -\u003e slab.h dependency is about to be removed.  Prepare for\nthis change by updating users of gfp and slab facilities include those\nheaders directly instead of assuming availability.  As this conversion\nneeds to touch large number of source files, the following script is\nused as the basis of conversion.\n\n  http://userweb.kernel.org/~tj/misc/slabh-sweep.py\n\nThe script does the followings.\n\n* Scan files for gfp and slab usages and update includes such that\n  only the necessary includes are there.  ie. if only gfp is used,\n  gfp.h, if slab is used, slab.h.\n\n* When the script inserts a new include, it looks at the include\n  blocks and try to put the new include such that its order conforms\n  to its surrounding.  It\u0027s put in the include block which contains\n  core kernel includes, in the same order that the rest are ordered -\n  alphabetical, Christmas tree, rev-Xmas-tree or at the end if there\n  doesn\u0027t seem to be any matching order.\n\n* If the script can\u0027t find a place to put a new include (mostly\n  because the file doesn\u0027t have fitting include block), it prints out\n  an error message indicating which .h file needs to be added to the\n  file.\n\nThe conversion was done in the following steps.\n\n1. The initial automatic conversion of all .c files updated slightly\n   over 4000 files, deleting around 700 includes and adding ~480 gfp.h\n   and ~3000 slab.h inclusions.  The script emitted errors for ~400\n   files.\n\n2. Each error was manually checked.  Some didn\u0027t need the inclusion,\n   some needed manual addition while adding it to implementation .h or\n   embedding .c file was more appropriate for others.  This step added\n   inclusions to around 150 files.\n\n3. The script was run again and the output was compared to the edits\n   from #2 to make sure no file was left behind.\n\n4. Several build tests were done and a couple of problems were fixed.\n   e.g. lib/decompress_*.c used malloc/free() wrappers around slab\n   APIs requiring slab.h to be added manually.\n\n5. The script was run on all .h files but without automatically\n   editing them as sprinkling gfp.h and slab.h inclusions around .h\n   files could easily lead to inclusion dependency hell.  Most gfp.h\n   inclusion directives were ignored as stuff from gfp.h was usually\n   wildly available and often used in preprocessor macros.  Each\n   slab.h inclusion directive was examined and added manually as\n   necessary.\n\n6. percpu.h was updated not to include slab.h.\n\n7. Build test were done on the following configurations and failures\n   were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my\n   distributed build env didn\u0027t work with gcov compiles) and a few\n   more options had to be turned off depending on archs to make things\n   build (like ipr on powerpc/64 which failed due to missing writeq).\n\n   * x86 and x86_64 UP and SMP allmodconfig and a custom test config.\n   * powerpc and powerpc64 SMP allmodconfig\n   * sparc and sparc64 SMP allmodconfig\n   * ia64 SMP allmodconfig\n   * s390 SMP allmodconfig\n   * alpha SMP allmodconfig\n   * um on x86_64 SMP allmodconfig\n\n8. percpu.h modifications were reverted so that it could be applied as\n   a separate patch and serve as bisection point.\n\nGiven the fact that I had only a couple of failures from tests on step\n6, I\u0027m fairly confident about the coverage of this conversion patch.\nIf there is a breakage, it\u0027s likely to be something in one of the arch\nheaders which should be easily discoverable easily on most builds of\nthe specific arch.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nGuess-its-ok-by: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nCc: Ingo Molnar \u003cmingo@redhat.com\u003e\nCc: Lee Schermerhorn \u003cLee.Schermerhorn@hp.com\u003e\n"
    },
    {
      "commit": "81fc401e426e8a4c719035ef86d051bd0d1111e5",
      "tree": "65c8397edef37f85b5ec79953d1da26dfa339bd0",
      "parents": [
        "9653a69e923522050e15dab042b163dcc2ed7111"
      ],
      "author": {
        "name": "Michael Buesch",
        "email": "mb@bu3sch.de",
        "time": "Wed Jun 17 16:27:49 2009 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Jun 18 13:03:54 2009 -0700"
      },
      "message": "ppdev: reduce kernel log spam\n\nOne of my programs frequently grabs the parport, does something with it\nand then drops it again. This results in spamming of the kernel log with\n\n\"... registered pardevice\"\n\"... unregistered pardevice\"\n\nThese messages are completely useless, except for debugging ppdev,\nprobably.  So put them under DEBUG (or dynamic debug).\n\nSigned-off-by: Michael Buesch \u003cmb@bu3sch.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "03457cd455d042c9ee4cc47c1ed4532257980693",
      "tree": "de926d3e839d363f3414c06906a56d601f224e78",
      "parents": [
        "1ff9f542e5f87c299226557ce5e67a402ed4b502"
      ],
      "author": {
        "name": "Greg Kroah-Hartman",
        "email": "gregkh@suse.de",
        "time": "Mon Jul 21 20:03:34 2008 -0700"
      },
      "committer": {
        "name": "Greg Kroah-Hartman",
        "email": "gregkh@suse.de",
        "time": "Thu Oct 16 09:24:42 2008 -0700"
      },
      "message": "device create: char: convert device_create_drvdata to device_create\n\nNow that device_create() has been audited, rename things back to the\noriginal call to be sane.\n\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n"
    },
    {
      "commit": "6d535d3e6ad395345750c361bd2b7f1b9429455d",
      "tree": "c00178880958f2d81a1e57c5372e5cdfb828e60c",
      "parents": [
        "e05e9f7c4aeb82eaa23e46b29580ff514590c641"
      ],
      "author": {
        "name": "Alan Cox",
        "email": "alan@lxorguk.ukuu.org.uk",
        "time": "Fri Jul 25 01:48:16 2008 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Fri Jul 25 10:53:43 2008 -0700"
      },
      "message": "ppdev: wrap ioctl handler in driver and push lock down\n\nSigned-off-by: Alan Cox \u003calan@redhat.com\u003e\nCc: Jiri Slaby \u003cjirislaby@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "47aa5793f78c274d51711f6a621fa6b02d4e6402",
      "tree": "88c45b3a90fc7d7b4210bf5727497294b0a951eb",
      "parents": [
        "f79f060561d04a38d41e773ade9baafce3c96179"
      ],
      "author": {
        "name": "Greg Kroah-Hartman",
        "email": "gregkh@suse.de",
        "time": "Wed May 21 12:52:33 2008 -0700"
      },
      "committer": {
        "name": "Greg Kroah-Hartman",
        "email": "gregkh@suse.de",
        "time": "Mon Jul 21 21:54:41 2008 -0700"
      },
      "message": "device create: char: convert device_create to device_create_drvdata\n\ndevice_create() is race-prone, so use the race-free\ndevice_create_drvdata() instead as device_create() is going away.\n\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n"
    },
    {
      "commit": "f2b9857eee17797541b845782ade4d7a9d50f843",
      "tree": "914a00afee2ff953199f99f7cf869e3fd83b36bd",
      "parents": [
        "0b2806768899dba5967bcd4a3b93eaed9a1dc4f3"
      ],
      "author": {
        "name": "Jonathan Corbet",
        "email": "corbet@lwn.net",
        "time": "Sun May 18 15:32:43 2008 -0600"
      },
      "committer": {
        "name": "Jonathan Corbet",
        "email": "corbet@lwn.net",
        "time": "Fri Jun 20 14:05:53 2008 -0600"
      },
      "message": "Add a bunch of cycle_kernel_lock() calls\n\nAll of the open() functions which don\u0027t need the BKL on their face may\nstill depend on its acquisition to serialize opens against driver\ninitialization.  So make those functions acquire then release the BKL to be\non the safe side.\n\nSigned-off-by: Jonathan Corbet \u003ccorbet@lwn.net\u003e\n"
    },
    {
      "commit": "d21c95c569c462da20d491b75d0a45bd70ddc1bf",
      "tree": "c5efcd4a1ae50101a56abc1f5a27ef5173da209d",
      "parents": [
        "39d95b9d857ad9ed335dd1a2d6c6de1f1ee69ce1"
      ],
      "author": {
        "name": "Jonathan Corbet",
        "email": "corbet@lwn.net",
        "time": "Fri May 16 13:40:30 2008 -0600"
      },
      "committer": {
        "name": "Jonathan Corbet",
        "email": "corbet@lwn.net",
        "time": "Fri Jun 20 14:05:50 2008 -0600"
      },
      "message": "Add \"no BKL needed\" comments to several drivers\n\nThis documents the fact that somebody looked at the relevant open()\nfunctions and concluded that, due to their trivial nature, no locking was\nneeded.\n\nSigned-off-by: Jonathan Corbet \u003ccorbet@lwn.net\u003e\n"
    },
    {
      "commit": "5712cb3d81566893c3b14e24075cf48ec5c35d00",
      "tree": "8258fb24a0c5130e8c0cad16d2d9395941be3ed7",
      "parents": [
        "f230d1010ad0dcd71d9ca8ea6864afac49c5aa9b"
      ],
      "author": {
        "name": "Jeff Garzik",
        "email": "jeff@garzik.org",
        "time": "Fri Oct 19 02:54:26 2007 -0400"
      },
      "committer": {
        "name": "Jeff Garzik",
        "email": "jeff@garzik.org",
        "time": "Tue Oct 23 19:53:16 2007 -0400"
      },
      "message": "[PARPORT] Remove unused \u0027irq\u0027 argument from parport irq functions\n\nNone of the drivers with a struct pardevice\u0027s -\u003eirq_func() hook ever\nused the \u0027irq\u0027 argument passed to it, so remove it.\n\nSigned-off-by: Jeff Garzik \u003cjgarzik@redhat.com\u003e\n"
    },
    {
      "commit": "3f1a4373e7863c320878322e68a45aa2b100b692",
      "tree": "e7ebcb0304ed001429b8c60884001a692a7d9db9",
      "parents": [
        "4be28540ee2f5af6f21764cde25154208750611e"
      ],
      "author": {
        "name": "Jesper Juhl",
        "email": "jesper.juhl@gmail.com",
        "time": "Tue Oct 16 23:26:21 2007 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Wed Oct 17 08:42:48 2007 -0700"
      },
      "message": "Clean up duplicate includes in drivers/char/\n\nThis patch cleans up duplicate includes in\n\tdrivers/char/\n\nSigned-off-by: Jesper Juhl \u003cjesper.juhl@gmail.com\u003e\nCc: Richard Purdie \u003crpurdie@rpsys.net\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "e63340ae6b6205fef26b40a75673d1c9c0c8bb90",
      "tree": "8d3212705515edec73c3936bb9e23c71d34a7b41",
      "parents": [
        "04c9167f91e309c9c4ea982992aa08e83b2eb42e"
      ],
      "author": {
        "name": "Randy Dunlap",
        "email": "randy.dunlap@oracle.com",
        "time": "Tue May 08 00:28:08 2007 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Tue May 08 11:15:07 2007 -0700"
      },
      "message": "header cleaning: don\u0027t include smp_lock.h when not used\n\nRemove includes of \u003clinux/smp_lock.h\u003e where it is not used/needed.\nSuggested by Al Viro.\n\nBuilds cleanly on x86_64, i386, alpha, ia64, powerpc, sparc,\nsparc64, and arm (all 59 defconfigs).\n\nSigned-off-by: 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": "da6752964290567a6b4ea180d1becda75e810e87",
      "tree": "fbd577a64563fe264d38c957132d468058470f3b",
      "parents": [
        "a7d801afc3d4d1c8aaa0449f17b9f9ce62e16236"
      ],
      "author": {
        "name": "David Brownell",
        "email": "david-b@pacbell.net",
        "time": "Tue May 08 00:27:42 2007 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Tue May 08 11:15:05 2007 -0700"
      },
      "message": "layered parport code uses parport-\u003edev\n\nUpdate some of the layered parport_driver code to use parport-\u003edev:\n\n\t- i2c-parport (parent of i2c_adapter)\n\t- spi_butterfly (parent of spi_master, allowing cruft removal)\n\t- lp (creating class_device)\n\t- ppdev (parent of parportN device)\n\t- tipar (creating class_device)\n\nThere are still drivers that should be updated, like some of the input\ndrivers; but they won\u0027t be any worse off than they are today.\n\nSigned-off-by: David Brownell \u003cdbrownell@users.sourceforge.net\u003e\nCc: Greg KH \u003cgreg@kroah.com\u003e\nCc: Jean Delvare \u003ckhali@linux-fr.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "a7113a966241b700aecc7b8cb326cecb62e3c4b2",
      "tree": "b28920a82e7cad67ea6e55826e161ba0e4cf9782",
      "parents": [
        "6c648be6f4183775679c1f2cc4d094128f104fb2"
      ],
      "author": {
        "name": "Josef Sipek",
        "email": "jsipek@fsl.cs.sunysb.edu",
        "time": "Fri Dec 08 02:36:55 2006 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.osdl.org",
        "time": "Fri Dec 08 08:28:44 2006 -0800"
      },
      "message": "[PATCH] struct path: convert char-drivers\n\nSigned-off-by: Josef Sipek \u003cjsipek@fsl.cs.sunysb.edu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "04880edae5e1027d61241beb5ac37b520755f2ab",
      "tree": "dc943e681a78e526f9e7590c67943404398536c6",
      "parents": [
        "9a6a2a5e0b57d25c1bf6eb9b8c958940e156b059"
      ],
      "author": {
        "name": "Greg Kroah-Hartman",
        "email": "gregkh@suse.de",
        "time": "Tue Sep 12 17:00:10 2006 +0200"
      },
      "committer": {
        "name": "Greg Kroah-Hartman",
        "email": "gregkh@suse.de",
        "time": "Fri Dec 01 14:52:00 2006 -0800"
      },
      "message": "Driver core: convert ppdev code to use struct device\n\nConverts from using struct \"class_device\" to \"struct device\" making\neverything show up properly in /sys/devices/ with symlinks from the\n/sys/class directory.\n\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n"
    },
    {
      "commit": "7d12e780e003f93433d49ce78cfedf4b4c52adc5",
      "tree": "6748550400445c11a306b132009f3001e3525df8",
      "parents": [
        "da482792a6d1a3fbaaa25fae867b343fb4db3246"
      ],
      "author": {
        "name": "David Howells",
        "email": "dhowells@redhat.com",
        "time": "Thu Oct 05 14:55:46 2006 +0100"
      },
      "committer": {
        "name": "David Howells",
        "email": "dhowells@warthog.cambridge.redhat.com",
        "time": "Thu Oct 05 15:10:12 2006 +0100"
      },
      "message": "IRQ: Maintain regs pointer globally rather than passing to IRQ handlers\n\nMaintain a per-CPU global \"struct pt_regs *\" variable which can be used instead\nof passing regs around manually through all ~1800 interrupt handlers in the\nLinux kernel.\n\nThe regs pointer is used in few places, but it potentially costs both stack\nspace and code to pass it around.  On the FRV arch, removing the regs parameter\nfrom all the genirq function results in a 20% speed up of the IRQ exit path\n(ie: from leaving timer_interrupt() to leaving do_IRQ()).\n\nWhere appropriate, an arch may override the generic storage facility and do\nsomething different with the variable.  On FRV, for instance, the address is\nmaintained in GR28 at all times inside the kernel as part of general exception\nhandling.\n\nHaving looked over the code, it appears that the parameter may be handed down\nthrough up to twenty or so layers of functions.  Consider a USB character\ndevice attached to a USB hub, attached to a USB controller that posts its\ninterrupts through a cascaded auxiliary interrupt controller.  A character\ndevice driver may want to pass regs to the sysrq handler through the input\nlayer which adds another few layers of parameter passing.\n\nI\u0027ve build this code with allyesconfig for x86_64 and i386.  I\u0027ve runtested the\nmain part of the code on FRV and i386, though I can\u0027t test most of the drivers.\nI\u0027ve also done partial conversion for powerpc and MIPS - these at least compile\nwith minimal configurations.\n\nThis will affect all archs.  Mostly the changes should be relatively easy.\nTake do_IRQ(), store the regs pointer at the beginning, saving the old one:\n\n\tstruct pt_regs *old_regs \u003d set_irq_regs(regs);\n\nAnd put the old one back at the end:\n\n\tset_irq_regs(old_regs);\n\nDon\u0027t pass regs through to generic_handle_irq() or __do_IRQ().\n\nIn timer_interrupt(), this sort of change will be necessary:\n\n\t-\tupdate_process_times(user_mode(regs));\n\t-\tprofile_tick(CPU_PROFILING, regs);\n\t+\tupdate_process_times(user_mode(get_irq_regs()));\n\t+\tprofile_tick(CPU_PROFILING);\n\nI\u0027d like to move update_process_times()\u0027s use of get_irq_regs() into itself,\nexcept that i386, alone of the archs, uses something other than user_mode().\n\nSome notes on the interrupt handling in the drivers:\n\n (*) input_dev() is now gone entirely.  The regs pointer is no longer stored in\n     the input_dev struct.\n\n (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking.  It does\n     something different depending on whether it\u0027s been supplied with a regs\n     pointer or not.\n\n (*) Various IRQ handler function pointers have been moved to type\n     irq_handler_t.\n\nSigned-Off-By: David Howells \u003cdhowells@redhat.com\u003e\n(cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)\n"
    },
    {
      "commit": "62322d2554d2f9680c8ace7bbf1f97d8fa84ad1a",
      "tree": "904f8b8354a4079cc1daaa355fe30200dcae9dc9",
      "parents": [
        "d459ec0baa5d22e111dfb139c46d6d788a9eac20"
      ],
      "author": {
        "name": "Arjan van de Ven",
        "email": "arjan@infradead.org",
        "time": "Mon Jul 03 00:24:21 2006 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Mon Jul 03 15:26:59 2006 -0700"
      },
      "message": "[PATCH] make more file_operation structs static\n\nMark the static struct file_operations in drivers/char as const.  Making\nthem const prevents accidental bugs, and moves them to the .rodata section\nso that they no longer do any false sharing; in addition with the proper\ndebug option they are then protected against corruption..\n\n[akpm@osdl.org: build fix]\nSigned-off-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "ff23eca3e8f613034e0d20ff86f6a89b62f5a14e",
      "tree": "826285f5daa660001d38cac6baaf34411fd40131",
      "parents": [
        "8ab5e4c15b53e147c08031a959d9f776823dbe73"
      ],
      "author": {
        "name": "Greg Kroah-Hartman",
        "email": "gregkh@suse.de",
        "time": "Mon Jun 20 21:15:16 2005 -0700"
      },
      "committer": {
        "name": "Greg Kroah-Hartman",
        "email": "gregkh@suse.de",
        "time": "Mon Jun 26 12:25:08 2006 -0700"
      },
      "message": "[PATCH] devfs: Remove the devfs_fs_kernel.h file from the tree\n\nAlso fixes up all files that #include it.\n\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n"
    },
    {
      "commit": "8ab5e4c15b53e147c08031a959d9f776823dbe73",
      "tree": "b851d4c1fdbd396379279e4475f7f778a667a208",
      "parents": [
        "7c69ef79741910883d5543caafa06aca3ebadbd1"
      ],
      "author": {
        "name": "Greg Kroah-Hartman",
        "email": "gregkh@suse.de",
        "time": "Mon Jun 20 21:15:16 2005 -0700"
      },
      "committer": {
        "name": "Greg Kroah-Hartman",
        "email": "gregkh@suse.de",
        "time": "Mon Jun 26 12:25:07 2006 -0700"
      },
      "message": "[PATCH] devfs: Remove devfs_remove() function from the kernel tree\n\nRemoves the devfs_remove() function and all callers of it.\n\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n"
    },
    {
      "commit": "7c69ef79741910883d5543caafa06aca3ebadbd1",
      "tree": "655d3f60abee0195d0aadb2c86ab04ccca89a307",
      "parents": [
        "1a715c5cf917326a285533d1116d725f5f2593c2"
      ],
      "author": {
        "name": "Greg Kroah-Hartman",
        "email": "gregkh@suse.de",
        "time": "Mon Jun 20 21:15:16 2005 -0700"
      },
      "committer": {
        "name": "Greg Kroah-Hartman",
        "email": "gregkh@suse.de",
        "time": "Mon Jun 26 12:25:07 2006 -0700"
      },
      "message": "[PATCH] devfs: Remove devfs_mk_cdev() function from the kernel tree\n\nRemoves the devfs_mk_cdev() function and all callers of it.\n\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n"
    },
    {
      "commit": "95dc112a5770dc670a1b45a3d9ee346fdd2b2697",
      "tree": "899cd99bdc928ade94ddc7b003b0de7d275cac48",
      "parents": [
        "0e6c62da7cd929b0389fc4a7e41464bb738647dc"
      ],
      "author": {
        "name": "Greg Kroah-Hartman",
        "email": "gregkh@suse.de",
        "time": "Mon Jun 20 21:15:16 2005 -0700"
      },
      "committer": {
        "name": "Greg Kroah-Hartman",
        "email": "gregkh@suse.de",
        "time": "Mon Jun 26 12:25:06 2006 -0700"
      },
      "message": "[PATCH] devfs: Remove devfs_mk_dir() function from the kernel tree\n\nRemoves the devfs_mk_dir() function and all callers of it.\n\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n"
    },
    {
      "commit": "e6a6784627483381d012b507bb0d49809658a1fa",
      "tree": "f963234f9c07940fd02f25ff53c228d9b0a0006d",
      "parents": [
        "1efa64696bc55cc396eefa9838a90d106dfab6bf"
      ],
      "author": {
        "name": "Rene Herman",
        "email": "rene.herman@keyaccess.nl",
        "time": "Sat Mar 25 03:07:13 2006 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Sat Mar 25 08:22:53 2006 -0800"
      },
      "message": "[PATCH] parport: move PP_MAJOR from ppdev.h to major.h\n\nToday I wondered about /dev/parport\u003cn\u003e after not seeing anything in\ndrivers/parport register char-major-99.  Having PP_MAJOR in\ninclude/linux/major.h would\u0027ve allowed me to more quickly determine that it\nwas the ppdev driver driving these.\n\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "53f4654272df7c51064825024340554b39c9efba",
      "tree": "e3e7b82a6bb0040ffbd267b250be2720704b98f2",
      "parents": [
        "51d172d5f3a193e4b8f76179b2e55d7a36b94117"
      ],
      "author": {
        "name": "Greg Kroah-Hartman",
        "email": "gregkh@suse.de",
        "time": "Thu Oct 27 22:25:43 2005 -0700"
      },
      "committer": {
        "name": "Greg Kroah-Hartman",
        "email": "gregkh@suse.de",
        "time": "Fri Oct 28 09:52:52 2005 -0700"
      },
      "message": "[PATCH] Driver Core: fix up all callers of class_device_create()\n\nThe previous patch adding the ability to nest struct class_device\nchanged the paramaters to the call class_device_create().  This patch\nfixes up all in-kernel users of the function.\n\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n"
    },
    {
      "commit": "ca8eca6884861c1ce294b05aacfdf9045bba9aff",
      "tree": "d155207bb52a56683160aa192765a19d67161c01",
      "parents": [
        "deb3697037a7d362d13468a73643e09cbc1615a8"
      ],
      "author": {
        "name": "gregkh@suse.de",
        "email": "gregkh@suse.de",
        "time": "Wed Mar 23 09:53:09 2005 -0800"
      },
      "committer": {
        "name": "Greg Kroah-Hartman",
        "email": "gregkh@suse.de",
        "time": "Mon Jun 20 15:15:08 2005 -0700"
      },
      "message": "[PATCH] class: convert drivers/char/* to use the new class api instead of class_simple\n\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\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"
    }
  ]
}