)]}'
{
  "log": [
    {
      "commit": "7e675137a8e1a4d45822746456dd389b65745bf6",
      "tree": "5df01d23ea1b6b212d18f2136ff82913fcbe7718",
      "parents": [
        "b379d790197cdf8a95fb67507d75a24ac0a1678d"
      ],
      "author": {
        "name": "Nick Piggin",
        "email": "npiggin@suse.de",
        "time": "Mon Apr 28 02:13:00 2008 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Mon Apr 28 08:58:23 2008 -0700"
      },
      "message": "mm: introduce pte_special pte bit\n\ns390 for one, cannot implement VM_MIXEDMAP with pfn_valid, due to their memory\nmodel (which is more dynamic than most).  Instead, they had proposed to\nimplement it with an additional path through vm_normal_page(), using a bit in\nthe pte to determine whether or not the page should be refcounted:\n\nvm_normal_page()\n{\n\t...\n        if (unlikely(vma-\u003evm_flags \u0026 (VM_PFNMAP|VM_MIXEDMAP))) {\n                if (vma-\u003evm_flags \u0026 VM_MIXEDMAP) {\n#ifdef s390\n\t\t\tif (!mixedmap_refcount_pte(pte))\n\t\t\t\treturn NULL;\n#else\n                        if (!pfn_valid(pfn))\n                                return NULL;\n#endif\n                        goto out;\n                }\n\t...\n}\n\nThis is fine, however if we are allowed to use a bit in the pte to determine\nrefcountedness, we can use that to _completely_ replace all the vma based\nschemes.  So instead of adding more cases to the already complex vma-based\nscheme, we can have a clearly seperate and simple pte-based scheme (and get\nslightly better code generation in the process):\n\nvm_normal_page()\n{\n#ifdef s390\n\tif (!mixedmap_refcount_pte(pte))\n\t\treturn NULL;\n\treturn pte_page(pte);\n#else\n\t...\n#endif\n}\n\nAnd finally, we may rather make this concept usable by any architecture rather\nthan making it s390 only, so implement a new type of pte state for this.\nUnfortunately the old vma based code must stay, because some architectures may\nnot be able to spare pte bits.  This makes vm_normal_page a little bit more\nugly than we would like, but the 2 cases are clearly seperate.\n\nSo introduce a pte_special pte state, and use it in mm/memory.c.  It is\ncurrently a noop for all architectures, so this doesn\u0027t actually result in any\ncompiled code changes to mm/memory.o.\n\nBTW:\nI haven\u0027t put vm_normal_page() into arch code as-per an earlier suggestion.\nThe reason is that, regardless of where vm_normal_page is actually\nimplemented, the *abstraction* is still exactly the same. Also, while it\ndepends on whether the architecture has pte_special or not, that is the\nonly two possible cases, and it really isn\u0027t an arch specific function --\nthe role of the arch code should be to provide primitive functions and\naccessors with which to build the core code; pte_special does that. We do\nnot want architectures to know or care about vm_normal_page itself, and\nwe definitely don\u0027t want them being able to invent something new there\nout of sight of mm/ code. If we made vm_normal_page an arch function, then\nwe have to make vm_insert_mixed (next patch) an arch function too. So I\ndon\u0027t think moving it to arch code fundamentally improves any abstractions,\nwhile it does practically make the code more difficult to follow, for both\nmm and arch developers, and easier to misuse.\n\n[akpm@linux-foundation.org: build fix]\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nAcked-by: Carsten Otte \u003ccotte@de.ibm.com\u003e\nCc: Jared Hulbert \u003cjaredeh@gmail.com\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Heiko Carstens \u003cheiko.carstens@de.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": "3b4a49e21b0d8a69629623815a8caff3eb4cf9f7",
      "tree": "28caaf5e577264a6edcbcd04141180fabaabe19c",
      "parents": [
        "3e92501a4e10e640786de10786c434834a0c1651"
      ],
      "author": {
        "name": "Chris Zankel",
        "email": "chris@zankel.net",
        "time": "Mon Jan 07 16:42:21 2008 -0800"
      },
      "committer": {
        "name": "Chris Zankel",
        "email": "chris@zankel.net",
        "time": "Wed Feb 13 17:23:26 2008 -0800"
      },
      "message": "[XTENSA] Fix modules for non-exec processor configurations\n\nWe need to use vmalloc_exec for module loading. Also remove\nthe definitions MODULE_START and MODULE_END, which wasn\u0027t\nused, and increase the VMALLOC memory range accordingly.\n\nSigned-off-by: Chris Zankel \u003cchris@zankel.net\u003e\n"
    },
    {
      "commit": "6656920b0b50beacb6cb64cf55273cbb686e436e",
      "tree": "dab9fdb81821b455a29779de6ca3306dbdf05dbd",
      "parents": [
        "ff6fd469885aafa5ec387babcb6537f3c00d6df0"
      ],
      "author": {
        "name": "Chris Zankel",
        "email": "chris@zankel.net",
        "time": "Wed Aug 22 10:14:51 2007 -0700"
      },
      "committer": {
        "name": "Chris Zankel",
        "email": "chris@zankel.net",
        "time": "Mon Aug 27 13:54:16 2007 -0700"
      },
      "message": "[XTENSA] Add support for cache-aliasing\n\nAdd support for processors that have cache-aliasing issues, such as\nthe Stretch S5000 processor. Cache-aliasing means that the size of\nthe cache (for one way) is larger than the page size, thus, a page\ncan end up in several places in cache depending on the virtual to\nphysical translation. The method used here is to map a user page\ntemporarily through the auto-refill way 0 and of of the DTLB.\nWe probably will want to revisit this issue and use a better\napproach with kmap/kunmap.\n\nSigned-off-by: Chris Zankel \u003cchris@zankel.net\u003e\n"
    },
    {
      "commit": "01858d1b0b406307626bbc01238391b06aae2c20",
      "tree": "d01d20f3f513e6a21880a60cdf195023e6aafc66",
      "parents": [
        "26465f2f4f5a253f22596fc9245a6bb5c0856ee1"
      ],
      "author": {
        "name": "Chris Zankel",
        "email": "chris@zankel.net",
        "time": "Mon Aug 06 23:57:57 2007 -0700"
      },
      "committer": {
        "name": "Chris Zankel",
        "email": "chris@zankel.net",
        "time": "Mon Aug 27 13:54:01 2007 -0700"
      },
      "message": "[XTENSA] Add support for executable/non-executable feature in the mmu\n\nNewer processor versions starting with Xtensa6/LX2 support an \u0027executable\u0027\nbit for memory pages. This bit replaces the \u0027valid\u0027 bit, so it must be\nalways set to one for older processor versions. To mark a page invalid, we now\nset the cache-attributes to b11, which is backward compatible.\n\nSigned-off-by: Chris Zankel \u003cchris@zankel.net\u003e\n"
    },
    {
      "commit": "e21ea246bce5bb93dd822de420172ec280aed492",
      "tree": "d624d1257728d8d869d54420c83d4bf4c4e19189",
      "parents": [
        "f0e47c229b489e37ba7e4159ef7f9cf9ccd44e19"
      ],
      "author": {
        "name": "Martin Schwidefsky",
        "email": "schwidefsky@de.ibm.com",
        "time": "Tue Jul 17 04:03:03 2007 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Tue Jul 17 10:22:59 2007 -0700"
      },
      "message": "mm: remove ptep_test_and_clear_dirty and ptep_clear_flush_dirty\n\nNobody is using ptep_test_and_clear_dirty and ptep_clear_flush_dirty.  Remove\nthe functions from all architectures.\n\nSigned-off-by: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "45e98cdb6d365b34b7a2d849e4d8bdc264d8e6e4",
      "tree": "172a959293a2c31691a162eca6af131e3ac89da2",
      "parents": [
        "98011f569e2ae1e4ae394f6e23faa16676d50de4"
      ],
      "author": {
        "name": "Jan Beulich",
        "email": "jbeulich@novell.com",
        "time": "Sun Jul 15 23:38:17 2007 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Mon Jul 16 09:05:36 2007 -0700"
      },
      "message": "page table handling cleanup\n\nKill pte_rdprotect(), pte_exprotect(), pte_mkread(), pte_mkexec(), pte_read(),\npte_exec(), and pte_user() except where arch-specific code is making use of\nthem.\n\nSigned-off-by: Jan Beulich \u003cjbeulich@novell.com\u003e\nCc: Andi Kleen \u003candi@firstfloor.org\u003e\nCc: Christoph Hellwig \u003chch@infradead.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "173d6681380aa1d60dfc35ed7178bd7811ba2784",
      "tree": "9d6d4d2c6dd791499ebab558647efb67ac88ae3a",
      "parents": [
        "fd43fe19b830d6cd0eba08a6c6a5f71a6bd9c1b0"
      ],
      "author": {
        "name": "Chris Zankel",
        "email": "czankel@tensilica.com",
        "time": "Sun Dec 10 02:18:48 2006 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.osdl.org",
        "time": "Sun Dec 10 09:55:39 2006 -0800"
      },
      "message": "[PATCH] xtensa: remove extra header files\n\nThe Xtensa port contained many header files that were never needed.  This\nrather lengthy patch removes all those files.  Unfortunately, there were\nmany dependencies that needed to be updated, so this patch touches quite a\nfew source files.\n\nSigned-off-by: Chris Zankel \u003cchris@zankel.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "f30c2269544bffc7bf1b0d7c0abe5be1be83b8cb",
      "tree": "2f6140d8a555af6a133690ed6b42599e78a43c54",
      "parents": [
        "670e9f34ee3c7e052514c85014d2fdd99b672cdc"
      ],
      "author": {
        "name": "Uwe Zeisberger",
        "email": "Uwe_Zeisberger@digi.com",
        "time": "Tue Oct 03 23:01:26 2006 +0200"
      },
      "committer": {
        "name": "Adrian Bunk",
        "email": "bunk@stusta.de",
        "time": "Tue Oct 03 23:01:26 2006 +0200"
      },
      "message": "fix file specification in comments\n\nMany files include the filename at the beginning, serveral used a wrong one.\n\nSigned-off-by: Uwe Zeisberger \u003cUwe_Zeisberger@digi.com\u003e\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\n"
    },
    {
      "commit": "46a82b2d5591335277ed2930611f6acb4ce654ed",
      "tree": "e90bc1843701af2012bae92564f7109027a8244f",
      "parents": [
        "d2e7b7d0aa021847c59f882b066e7d3812902870"
      ],
      "author": {
        "name": "Dave McCracken",
        "email": "dmccr@us.ibm.com",
        "time": "Mon Sep 25 23:31:48 2006 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Tue Sep 26 08:48:51 2006 -0700"
      },
      "message": "[PATCH] Standardize pxx_page macros\n\nOne of the changes necessary for shared page tables is to standardize the\npxx_page macros.  pte_page and pmd_page have always returned the struct\npage associated with their entry, while pte_page_kernel and pmd_page_kernel\nhave returned the kernel virtual address.  pud_page and pgd_page, on the\nother hand, return the kernel virtual address.\n\nShared page tables needs pud_page and pgd_page to return the actual page\nstructures.  There are very few actual users of these functions, so it is\nsimple to standardize their usage.\n\nSince this is basic cleanup, I am submitting these changes as a standalone\npatch.  Per Hugh Dickins\u0027 comments about it, I am also changing the\npxx_page_kernel macros to pxx_page_vaddr to clarify their meaning.\n\nSigned-off-by: Dave McCracken \u003cdmccr@us.ibm.com\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "8c65b4a60450590e79a28e9717ceffa9e4debb3f",
      "tree": "e0e42b5faee0a1c44746a36d9df7a8fbb2a2c24c",
      "parents": [
        "6fdcc2162285a8fc96ab12ff85086c37bceaa494"
      ],
      "author": {
        "name": "Tim Schmielau",
        "email": "tim@physik3.uni-rostock.de",
        "time": "Mon Nov 07 00:59:43 2005 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Mon Nov 07 07:53:41 2005 -0800"
      },
      "message": "[PATCH] fix remaining missing includes\n\nFix more include file problems that surfaced since I submitted the previous\nfix-missing-includes.patch.  This should now allow not to include sched.h\nfrom module.h, which is done by a followup patch.\n\nSigned-off-by: Tim Schmielau \u003ctim@physik3.uni-rostock.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "33bf56106d9be272696b73d9179da4e56b277472",
      "tree": "905fe909edf96831a988de8fd35d22ee96ab4db0",
      "parents": [
        "82006d084109bb4118f1de0dc5855abe5ccae430"
      ],
      "author": {
        "name": "Randy Dunlap",
        "email": "rdunlap@xenotime.net",
        "time": "Tue Sep 13 01:25:50 2005 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Tue Sep 13 08:22:33 2005 -0700"
      },
      "message": "[PATCH] feature removal of io_remap_page_range()\n\nAs written in Documentation/feature-removal-schedule.txt, remove the\nio_remap_page_range() kernel API.\n\nSigned-off-by: Randy Dunlap \u003crdunlap@xenotime.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "d99cf715a0751b0c819cdd8616c8870c1dd51910",
      "tree": "7250fa334b00690e4e586d45c3eb6aa9770df17f",
      "parents": [
        "7ef939054139ef857cebbec07cbd12d7cf7beedd"
      ],
      "author": {
        "name": "Adrian Bunk",
        "email": "bunk@stusta.de",
        "time": "Sat Sep 03 15:57:53 2005 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@evo.osdl.org",
        "time": "Mon Sep 05 00:06:25 2005 -0700"
      },
      "message": "[PATCH] xtensa: replace \u0027extern inline\u0027 with \u0027static inline\u0027\n\n\"extern inline\" doesn\u0027t make sense.\n\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\nSigned-off-by: Chris Zankel \u003cchris@zankel.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "9a8fd5589902153a134111ed7a40f9cca1f83254",
      "tree": "6f7a06de25bdf0b2d94623794c2cbbc66b5a77f6",
      "parents": [
        "3f65ce4d141e435e54c20ed2379d983d362a2cb5"
      ],
      "author": {
        "name": "Chris Zankel",
        "email": "czankel@tensilica.com",
        "time": "Thu Jun 23 22:01:26 2005 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@ppc970.osdl.org",
        "time": "Fri Jun 24 00:05:22 2005 -0700"
      },
      "message": "[PATCH] xtensa: Architecture support for Tensilica Xtensa Part 6\n\nThe attached patches provides part 6 of an architecture implementation for the\nTensilica Xtensa CPU series.\n\nSigned-off-by: Chris Zankel \u003cchris@zankel.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    }
  ]
}