)]}'
{
  "log": [
    {
      "commit": "6038f373a3dc1f1c26496e60b6c40b164716f07e",
      "tree": "a0d3bbd026eea41b9fc36b8c722cbaf56cd9f825",
      "parents": [
        "1ec5584e3edf9c4bf2c88c846534d19cf986ba11"
      ],
      "author": {
        "name": "Arnd Bergmann",
        "email": "arnd@arndb.de",
        "time": "Sun Aug 15 18:52:59 2010 +0200"
      },
      "committer": {
        "name": "Arnd Bergmann",
        "email": "arnd@arndb.de",
        "time": "Fri Oct 15 15:53:27 2010 +0200"
      },
      "message": "llseek: automatically add .llseek fop\n\nAll file_operations should get a .llseek operation so we can make\nnonseekable_open the default for future file operations without a\n.llseek pointer.\n\nThe three cases that we can automatically detect are no_llseek, seq_lseek\nand default_llseek. For cases where we can we can automatically prove that\nthe file offset is always ignored, we use noop_llseek, which maintains\nthe current behavior of not returning an error from a seek.\n\nNew drivers should normally not use noop_llseek but instead use no_llseek\nand call nonseekable_open at open time.  Existing drivers can be converted\nto do the same when the maintainer knows for certain that no user code\nrelies on calling seek on the device file.\n\nThe generated code is often incorrectly indented and right now contains\ncomments that clarify for each added line why a specific variant was\nchosen. In the version that gets submitted upstream, the comments will\nbe gone and I will manually fix the indentation, because there does not\nseem to be a way to do that using coccinelle.\n\nSome amount of new code is currently sitting in linux-next that should get\nthe same modifications, which I will do at the end of the merge window.\n\nMany thanks to Julia Lawall for helping me learn to write a semantic\npatch that does all this.\n\n\u003d\u003d\u003d\u003d\u003d begin semantic patch \u003d\u003d\u003d\u003d\u003d\n// This adds an llseek\u003d method to all file operations,\n// as a preparation for making no_llseek the default.\n//\n// The rules are\n// - use no_llseek explicitly if we do nonseekable_open\n// - use seq_lseek for sequential files\n// - use default_llseek if we know we access f_pos\n// - use noop_llseek if we know we don\u0027t access f_pos,\n//   but we still want to allow users to call lseek\n//\n@ open1 exists @\nidentifier nested_open;\n@@\nnested_open(...)\n{\n\u003c+...\nnonseekable_open(...)\n...+\u003e\n}\n\n@ open exists@\nidentifier open_f;\nidentifier i, f;\nidentifier open1.nested_open;\n@@\nint open_f(struct inode *i, struct file *f)\n{\n\u003c+...\n(\nnonseekable_open(...)\n|\nnested_open(...)\n)\n...+\u003e\n}\n\n@ read disable optional_qualifier exists @\nidentifier read_f;\nidentifier f, p, s, off;\ntype ssize_t, size_t, loff_t;\nexpression E;\nidentifier func;\n@@\nssize_t read_f(struct file *f, char *p, size_t s, loff_t *off)\n{\n\u003c+...\n(\n   *off \u003d E\n|\n   *off +\u003d E\n|\n   func(..., off, ...)\n|\n   E \u003d *off\n)\n...+\u003e\n}\n\n@ read_no_fpos disable optional_qualifier exists @\nidentifier read_f;\nidentifier f, p, s, off;\ntype ssize_t, size_t, loff_t;\n@@\nssize_t read_f(struct file *f, char *p, size_t s, loff_t *off)\n{\n... when !\u003d off\n}\n\n@ write @\nidentifier write_f;\nidentifier f, p, s, off;\ntype ssize_t, size_t, loff_t;\nexpression E;\nidentifier func;\n@@\nssize_t write_f(struct file *f, const char *p, size_t s, loff_t *off)\n{\n\u003c+...\n(\n  *off \u003d E\n|\n  *off +\u003d E\n|\n  func(..., off, ...)\n|\n  E \u003d *off\n)\n...+\u003e\n}\n\n@ write_no_fpos @\nidentifier write_f;\nidentifier f, p, s, off;\ntype ssize_t, size_t, loff_t;\n@@\nssize_t write_f(struct file *f, const char *p, size_t s, loff_t *off)\n{\n... when !\u003d off\n}\n\n@ fops0 @\nidentifier fops;\n@@\nstruct file_operations fops \u003d {\n ...\n};\n\n@ has_llseek depends on fops0 @\nidentifier fops0.fops;\nidentifier llseek_f;\n@@\nstruct file_operations fops \u003d {\n...\n .llseek \u003d llseek_f,\n...\n};\n\n@ has_read depends on fops0 @\nidentifier fops0.fops;\nidentifier read_f;\n@@\nstruct file_operations fops \u003d {\n...\n .read \u003d read_f,\n...\n};\n\n@ has_write depends on fops0 @\nidentifier fops0.fops;\nidentifier write_f;\n@@\nstruct file_operations fops \u003d {\n...\n .write \u003d write_f,\n...\n};\n\n@ has_open depends on fops0 @\nidentifier fops0.fops;\nidentifier open_f;\n@@\nstruct file_operations fops \u003d {\n...\n .open \u003d open_f,\n...\n};\n\n// use no_llseek if we call nonseekable_open\n////////////////////////////////////////////\n@ nonseekable1 depends on !has_llseek \u0026\u0026 has_open @\nidentifier fops0.fops;\nidentifier nso ~\u003d \"nonseekable_open\";\n@@\nstruct file_operations fops \u003d {\n...  .open \u003d nso, ...\n+.llseek \u003d no_llseek, /* nonseekable */\n};\n\n@ nonseekable2 depends on !has_llseek @\nidentifier fops0.fops;\nidentifier open.open_f;\n@@\nstruct file_operations fops \u003d {\n...  .open \u003d open_f, ...\n+.llseek \u003d no_llseek, /* open uses nonseekable */\n};\n\n// use seq_lseek for sequential files\n/////////////////////////////////////\n@ seq depends on !has_llseek @\nidentifier fops0.fops;\nidentifier sr ~\u003d \"seq_read\";\n@@\nstruct file_operations fops \u003d {\n...  .read \u003d sr, ...\n+.llseek \u003d seq_lseek, /* we have seq_read */\n};\n\n// use default_llseek if there is a readdir\n///////////////////////////////////////////\n@ fops1 depends on !has_llseek \u0026\u0026 !nonseekable1 \u0026\u0026 !nonseekable2 \u0026\u0026 !seq @\nidentifier fops0.fops;\nidentifier readdir_e;\n@@\n// any other fop is used that changes pos\nstruct file_operations fops \u003d {\n... .readdir \u003d readdir_e, ...\n+.llseek \u003d default_llseek, /* readdir is present */\n};\n\n// use default_llseek if at least one of read/write touches f_pos\n/////////////////////////////////////////////////////////////////\n@ fops2 depends on !fops1 \u0026\u0026 !has_llseek \u0026\u0026 !nonseekable1 \u0026\u0026 !nonseekable2 \u0026\u0026 !seq @\nidentifier fops0.fops;\nidentifier read.read_f;\n@@\n// read fops use offset\nstruct file_operations fops \u003d {\n... .read \u003d read_f, ...\n+.llseek \u003d default_llseek, /* read accesses f_pos */\n};\n\n@ fops3 depends on !fops1 \u0026\u0026 !fops2 \u0026\u0026 !has_llseek \u0026\u0026 !nonseekable1 \u0026\u0026 !nonseekable2 \u0026\u0026 !seq @\nidentifier fops0.fops;\nidentifier write.write_f;\n@@\n// write fops use offset\nstruct file_operations fops \u003d {\n... .write \u003d write_f, ...\n+\t.llseek \u003d default_llseek, /* write accesses f_pos */\n};\n\n// Use noop_llseek if neither read nor write accesses f_pos\n///////////////////////////////////////////////////////////\n\n@ fops4 depends on !fops1 \u0026\u0026 !fops2 \u0026\u0026 !fops3 \u0026\u0026 !has_llseek \u0026\u0026 !nonseekable1 \u0026\u0026 !nonseekable2 \u0026\u0026 !seq @\nidentifier fops0.fops;\nidentifier read_no_fpos.read_f;\nidentifier write_no_fpos.write_f;\n@@\n// write fops use offset\nstruct file_operations fops \u003d {\n...\n .write \u003d write_f,\n .read \u003d read_f,\n...\n+.llseek \u003d noop_llseek, /* read and write both use no f_pos */\n};\n\n@ depends on has_write \u0026\u0026 !has_read \u0026\u0026 !fops1 \u0026\u0026 !fops2 \u0026\u0026 !has_llseek \u0026\u0026 !nonseekable1 \u0026\u0026 !nonseekable2 \u0026\u0026 !seq @\nidentifier fops0.fops;\nidentifier write_no_fpos.write_f;\n@@\nstruct file_operations fops \u003d {\n... .write \u003d write_f, ...\n+.llseek \u003d noop_llseek, /* write uses no f_pos */\n};\n\n@ depends on has_read \u0026\u0026 !has_write \u0026\u0026 !fops1 \u0026\u0026 !fops2 \u0026\u0026 !has_llseek \u0026\u0026 !nonseekable1 \u0026\u0026 !nonseekable2 \u0026\u0026 !seq @\nidentifier fops0.fops;\nidentifier read_no_fpos.read_f;\n@@\nstruct file_operations fops \u003d {\n... .read \u003d read_f, ...\n+.llseek \u003d noop_llseek, /* read uses no f_pos */\n};\n\n@ depends on !has_read \u0026\u0026 !has_write \u0026\u0026 !fops1 \u0026\u0026 !fops2 \u0026\u0026 !has_llseek \u0026\u0026 !nonseekable1 \u0026\u0026 !nonseekable2 \u0026\u0026 !seq @\nidentifier fops0.fops;\n@@\nstruct file_operations fops \u003d {\n...\n+.llseek \u003d noop_llseek, /* no read or write fn */\n};\n\u003d\u003d\u003d\u003d\u003d End semantic patch \u003d\u003d\u003d\u003d\u003d\n\nSigned-off-by: Arnd Bergmann \u003carnd@arndb.de\u003e\nCc: Julia Lawall \u003cjulia@diku.dk\u003e\nCc: Christoph Hellwig \u003chch@infradead.org\u003e\n"
    },
    {
      "commit": "d2a7be0be1099c2554f4705d2c1c5081f8f96efc",
      "tree": "92b7542288a26292c3e49b09121a9831ad7350a1",
      "parents": [
        "3a8183a2061ba54c4c2b3cd31c3add6fd717e853"
      ],
      "author": {
        "name": "Thomas Gleixner",
        "email": "tglx@linutronix.de",
        "time": "Sat Oct 10 16:07:03 2009 +0200"
      },
      "committer": {
        "name": "Thomas Gleixner",
        "email": "tglx@linutronix.de",
        "time": "Wed Oct 14 17:36:53 2009 +0200"
      },
      "message": "mips: Remove BKL from tb0219\n\ncycle_kernel_lock() was added during the big BKL pushdown. It should\nensure the serializiation against driver init code.\n\ntb0219_base is initialized before the character device is\nregistered, but the spinlock is not initialized.\n\nInitialize the spinlock statically and remove cycle_kernel_lock().\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nLKML-Reference: \u003c20091010153350.222654356@linutronix.de\u003e\nCc: Yoichi Yuasa \u003cyuasa@linux-mips.org\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\n"
    },
    {
      "commit": "ada8e9514b5880f81cdbbd212d121380ceef7acc",
      "tree": "83c068f628be496ea6a1c6f67b7e95708d59efe4",
      "parents": [
        "3f5b3e17f791ba27f91fc4fdc514e7704d4d6273"
      ],
      "author": {
        "name": "Yoichi Yuasa",
        "email": "yuasa@linux-mips.org",
        "time": "Fri Jul 03 00:39:38 2009 +0900"
      },
      "committer": {
        "name": "Ralf Baechle",
        "email": "ralf@linux-mips.org",
        "time": "Fri Jul 03 15:45:29 2009 +0100"
      },
      "message": "Update Yoichi Yuasa\u0027s e-mail address\n\nSigned-off-by: Yoichi Yuasa \u003cyuasa@linux-mips.org\u003e\nSigned-off-by: Ralf Baechle \u003cralf@linux-mips.org\u003e\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": "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": "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": "d0497614e0bd54f113041966532035edba463f8e",
      "tree": "9d43d377fcafb8675aaf3854eda5f0f6b6dad669",
      "parents": [
        "eee8ab75c609fa0c452246f69237ff577b931243"
      ],
      "author": {
        "name": "Dmitry Torokhov",
        "email": "dtor_core@ameritech.net",
        "time": "Wed Mar 22 00:07:55 2006 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Wed Mar 22 07:53:56 2006 -0800"
      },
      "message": "[PATCH] tb0219: convert to the new platform device interface\n\nDo not use platform_device_register_simple() as it is going away.\n\nSigned-off-by: Dmitry Torokhov \u003cdtor@mail.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "29ce2c765ca9a41be6f31aa1770e8ee3ee48cd21",
      "tree": "4aacbb27a33dbac624f63cabc957d813b321ed3a",
      "parents": [
        "2065988e9fb1628de7958b0f7f709b93302f7b97"
      ],
      "author": {
        "name": "Ralf Baechle",
        "email": "ralf@linux-mips.org",
        "time": "Mon Dec 12 20:11:50 2005 +0000"
      },
      "committer": {
        "name": "",
        "email": "ralf@denk.linux-mips.net",
        "time": "Tue Jan 10 13:39:07 2006 +0000"
      },
      "message": "Update Yoichi Yuasa\u0027s email address.\n    \nSigned-off-by: Ralf Baechle \u003cralf@linux-mips.org\u003e\n"
    },
    {
      "commit": "3ae5eaec1d2d9c0cf53745352e7d4b152810ba24",
      "tree": "d8825be54cefb6ad6707478d719c8e30605bee7b",
      "parents": [
        "00d3dcdd96646be6059cc21f2efa94c4edc1eda5"
      ],
      "author": {
        "name": "Russell King",
        "email": "rmk@dyn-67.arm.linux.org.uk",
        "time": "Wed Nov 09 22:32:44 2005 +0000"
      },
      "committer": {
        "name": "Russell King",
        "email": "rmk+kernel@arm.linux.org.uk",
        "time": "Wed Nov 09 22:32:44 2005 +0000"
      },
      "message": "[DRIVER MODEL] Convert platform drivers to use struct platform_driver\n\nThis allows us to eliminate the casts in the drivers, and eventually\nremove the use of the device_driver function pointer methods for\nplatform device drivers.\n\nSigned-off-by: Russell King \u003crmk+kernel@arm.linux.org.uk\u003e\nAcked-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n"
    },
    {
      "commit": "d052d1beff706920e82c5d55006b08e256b5df09",
      "tree": "dac91b70361b405ab8e15207f514a2f3e991e93d",
      "parents": [
        "8a212ab6b8a4ccc6f3c3d1beba5f92655c576404"
      ],
      "author": {
        "name": "Russell King",
        "email": "rmk@dyn-67.arm.linux.org.uk",
        "time": "Sat Oct 29 19:07:23 2005 +0100"
      },
      "committer": {
        "name": "Russell King",
        "email": "rmk+kernel@arm.linux.org.uk",
        "time": "Sat Oct 29 19:07:23 2005 +0100"
      },
      "message": "Create platform_device.h to contain all the platform device details.\nConvert everyone who uses platform_bus_type to include\nlinux/platform_device.h.\n\nSigned-off-by: Russell King \u003crmk+kernel@arm.linux.org.uk\u003e\nAcked-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n"
    },
    {
      "commit": "6e498c1080ae794a8dc788152002fb39994ae78b",
      "tree": "88884153708d47ef1fb03157d02503ecd1cb65e5",
      "parents": [
        "01e77d31d11a767c9da665f46e075756aef4fc4f"
      ],
      "author": {
        "name": "Yoichi Yuasa",
        "email": "yuasa@hh.iij4u.or.jp",
        "time": "Tue Jul 12 13:58:32 2005 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Tue Jul 12 16:01:02 2005 -0700"
      },
      "message": "[PATCH] TB0219: add PCI IRQ initialization\n\nThis patch adds PCI IRQ initialization to TB0219 driver.\n\nSigned-off-by: Yoichi Yuasa \u003cyuasa@hh.iij4u.or.jp\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"
    }
  ]
}