)]}'
{
  "log": [
    {
      "commit": "edc315fd222497ae4f4b959a9e31ada1e68a4755",
      "tree": "aaf1a6b015368c52097ed0c362a24bf18e40897f",
      "parents": [
        "2509ef26db4699a5d9fa876e90ddfc107afcab84"
      ],
      "author": {
        "name": "Hugh Dickins",
        "email": "hugh@veritas.com",
        "time": "Tue Jan 06 14:40:11 2009 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Tue Jan 06 15:59:07 2009 -0800"
      },
      "message": "badpage: remove vma from page_remove_rmap\n\nRemove page_remove_rmap()\u0027s vma arg, which was only for the Eeek message.\nAnd remove the BUG_ON(page_mapcount(page) \u003d\u003d 0) from CONFIG_DEBUG_VM\u0027s\npage_dup_rmap(): we\u0027re trying to be more resilient about that than BUGs.\n\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nCc: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nCc: Mel Gorman \u003cmel@csn.ul.ie\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "2afd1c928f1132b8d0099866e75ce8ad713a1180",
      "tree": "e31d1cfd0b11df74e0241fe43e4be2c72a8946ff",
      "parents": [
        "b5934c531849ff4a51ce0f290141efe564290e40"
      ],
      "author": {
        "name": "Hugh Dickins",
        "email": "hugh@veritas.com",
        "time": "Tue Jan 06 14:39:26 2009 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Tue Jan 06 15:59:02 2009 -0800"
      },
      "message": "mm: make page_lock_anon_vma() static\n\npage_lock_anon_vma() and page_unlock_anon_vma() were made available to\nshow_page_path() in vmscan.c; but now that has been removed, make them\nstatic in rmap.c again, they\u0027re better kept private if possible.\n\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nReviewed-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "fdd2e5f88a259a537bb239e0c03c973cb6ea402a",
      "tree": "e97192ba1a7b7f341c8d3debc3fe7639b2eaa284",
      "parents": [
        "1a651a00e20fd4997f0b91258f6f95b7d96edcd9"
      ],
      "author": {
        "name": "Adrian Bunk",
        "email": "bunk@kernel.org",
        "time": "Sat Oct 18 20:28:38 2008 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Mon Oct 20 08:52:40 2008 -0700"
      },
      "message": "make mm/rmap.c:anon_vma_cachep static\n\nThis patch makes the needlessly global anon_vma_cachep static.\n\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nReviewed-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nAcked-by: Rik van Riel \u003criel@redhat.com\u003e\nAcked-by: 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": "af936a1606246a10c145feac3770f6287f483f02",
      "tree": "8b1ca7fabb5c749ffdecd654519889c6c2ed2fb6",
      "parents": [
        "64d6519dda3905dfb94d3f93c07c5f263f41813f"
      ],
      "author": {
        "name": "Lee Schermerhorn",
        "email": "lee.schermerhorn@hp.com",
        "time": "Sat Oct 18 20:26:53 2008 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Mon Oct 20 08:52:31 2008 -0700"
      },
      "message": "vmscan: unevictable LRU scan sysctl\n\nThis patch adds a function to scan individual or all zones\u0027 unevictable\nlists and move any pages that have become evictable onto the respective\nzone\u0027s inactive list, where shrink_inactive_list() will deal with them.\n\nAdds sysctl to scan all nodes, and per node attributes to individual\nnodes\u0027 zones.\n\nKosaki: If evictable page found in unevictable lru when write\n/proc/sys/vm/scan_unevictable_pages, print filename and file offset of\nthese pages.\n\n[akpm@linux-foundation.org: fix one CONFIG_MMU\u003dn build error]\n[kosaki.motohiro@jp.fujitsu.com: adapt vmscan-unevictable-lru-scan-sysctl.patch to new sysfs API]\nSigned-off-by: Lee Schermerhorn \u003clee.schermerhorn@hp.com\u003e\nSigned-off-by: Rik van Riel \u003criel@redhat.com\u003e\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nSigned-off-by: 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": "b291f000393f5a0b679012b39d79fbc85c018233",
      "tree": "28eb785d4d157d3396e4377294e6054635a4bd90",
      "parents": [
        "89e004ea55abe201b29e2d6e35124101f1288ef7"
      ],
      "author": {
        "name": "Nick Piggin",
        "email": "npiggin@suse.de",
        "time": "Sat Oct 18 20:26:44 2008 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Mon Oct 20 08:52:30 2008 -0700"
      },
      "message": "mlock: mlocked pages are unevictable\n\nMake sure that mlocked pages also live on the unevictable LRU, so kswapd\nwill not scan them over and over again.\n\nThis is achieved through various strategies:\n\n1) add yet another page flag--PG_mlocked--to indicate that\n   the page is locked for efficient testing in vmscan and,\n   optionally, fault path.  This allows early culling of\n   unevictable pages, preventing them from getting to\n   page_referenced()/try_to_unmap().  Also allows separate\n   accounting of mlock\u0027d pages, as Nick\u0027s original patch\n   did.\n\n   Note:  Nick\u0027s original mlock patch used a PG_mlocked\n   flag.  I had removed this in favor of the PG_unevictable\n   flag + an mlock_count [new page struct member].  I\n   restored the PG_mlocked flag to eliminate the new\n   count field.\n\n2) add the mlock/unevictable infrastructure to mm/mlock.c,\n   with internal APIs in mm/internal.h.  This is a rework\n   of Nick\u0027s original patch to these files, taking into\n   account that mlocked pages are now kept on unevictable\n   LRU list.\n\n3) update vmscan.c:page_evictable() to check PageMlocked()\n   and, if vma passed in, the vm_flags.  Note that the vma\n   will only be passed in for new pages in the fault path;\n   and then only if the \"cull unevictable pages in fault\n   path\" patch is included.\n\n4) add try_to_unlock() to rmap.c to walk a page\u0027s rmap and\n   ClearPageMlocked() if no other vmas have it mlocked.\n   Reuses as much of try_to_unmap() as possible.  This\n   effectively replaces the use of one of the lru list links\n   as an mlock count.  If this mechanism let\u0027s pages in mlocked\n   vmas leak through w/o PG_mlocked set [I don\u0027t know that it\n   does], we should catch them later in try_to_unmap().  One\n   hopes this will be rare, as it will be relatively expensive.\n\nOriginal mm/internal.h, mm/rmap.c and mm/mlock.c changes:\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\n\nsplitlru: introduce __get_user_pages():\n\n  New munlock processing need to GUP_FLAGS_IGNORE_VMA_PERMISSIONS.\n  because current get_user_pages() can\u0027t grab PROT_NONE pages theresore it\n  cause PROT_NONE pages can\u0027t munlock.\n\n[akpm@linux-foundation.org: fix this for pagemap-pass-mm-into-pagewalkers.patch]\n[akpm@linux-foundation.org: untangle patch interdependencies]\n[akpm@linux-foundation.org: fix things after out-of-order merging]\n[hugh@veritas.com: fix page-flags mess]\n[lee.schermerhorn@hp.com: fix munlock page table walk - now requires \u0027mm\u0027]\n[kosaki.motohiro@jp.fujitsu.com: build fix]\n[kosaki.motohiro@jp.fujitsu.com: fix truncate race and sevaral comments]\n[kosaki.motohiro@jp.fujitsu.com: splitlru: introduce __get_user_pages()]\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nSigned-off-by: Rik van Riel \u003criel@redhat.com\u003e\nSigned-off-by: Lee Schermerhorn \u003clee.schermerhorn@hp.com\u003e\nCc: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Dave Hansen \u003cdave@linux.vnet.ibm.com\u003e\nCc: Matt Mackall \u003cmpm@selenic.com\u003e\nSigned-off-by: 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": "479db0bf408e65baa14d2a9821abfcbc0804b847",
      "tree": "acdaaed567afefa36ac2fe27cfe22cfefeb50cd5",
      "parents": [
        "2d70b68d42b5196a48ccb639e3797f097ef5bea3"
      ],
      "author": {
        "name": "Nick Piggin",
        "email": "npiggin@suse.de",
        "time": "Wed Aug 20 14:09:18 2008 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Aug 20 15:40:32 2008 -0700"
      },
      "message": "mm: dirty page tracking race fix\n\nThere is a race with dirty page accounting where a page may not properly\nbe accounted for.\n\nclear_page_dirty_for_io() calls page_mkclean; then TestClearPageDirty.\n\npage_mkclean walks the rmaps for that page, and for each one it cleans and\nwrite protects the pte if it was dirty.  It uses page_check_address to\nfind the pte.  That function has a shortcut to avoid the ptl if the pte is\nnot present.  Unfortunately, the pte can be switched to not-present then\nback to present by other code while holding the page table lock -- this\nshould not be a signal for page_mkclean to ignore that pte, because it may\nbe dirty.\n\nFor example, powerpc64\u0027s set_pte_at will clear a previously present pte\nbefore setting it to the desired value.  There may also be other code in\ncore mm or in arch which do similar things.\n\nThe consequence of the bug is loss of data integrity due to msync, and\nloss of dirty page accounting accuracy.  XIP\u0027s __xip_unmap could easily\nalso be unreliable (depending on the exact XIP locking scheme), which can\nlead to data corruption.\n\nFix this by having an option to always take ptl to check the pte in\npage_check_address.\n\nIt\u0027s possible to retain this optimization for page_referenced and\ntry_to_unmap.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Jared Hulbert \u003cjaredeh@gmail.com\u003e\nCc: Carsten Otte \u003ccotte@freenet.de\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "7906d00cd1f687268f0a3599442d113767795ae6",
      "tree": "63609454d164a088d7f535f826764579c0f297f6",
      "parents": [
        "6beeac76f5f96590fb751af5e138fbc3f62e8460"
      ],
      "author": {
        "name": "Andrea Arcangeli",
        "email": "andrea@qumranet.com",
        "time": "Mon Jul 28 15:46:26 2008 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Mon Jul 28 16:30:21 2008 -0700"
      },
      "message": "mmu-notifiers: add mm_take_all_locks() operation\n\nmm_take_all_locks holds off reclaim from an entire mm_struct.  This allows\nmmu notifiers to register into the mm at any time with the guarantee that\nno mmu operation is in progress on the mm.\n\nThis operation locks against the VM for all pte/vma/mm related operations\nthat could ever happen on a certain mm.  This includes vmtruncate,\ntry_to_unmap, and all page faults.\n\nThe caller must take the mmap_sem in write mode before calling\nmm_take_all_locks().  The caller isn\u0027t allowed to release the mmap_sem\nuntil mm_drop_all_locks() returns.\n\nmmap_sem in write mode is required in order to block all operations that\ncould modify pagetables and free pages without need of altering the vma\nlayout (for example populate_range() with nonlinear vmas).  It\u0027s also\nneeded in write mode to avoid new anon_vmas to be associated with existing\nvmas.\n\nA single task can\u0027t take more than one mm_take_all_locks() in a row or it\nwould deadlock.\n\nmm_take_all_locks() and mm_drop_all_locks are expensive operations that\nmay have to take thousand of locks.\n\nmm_take_all_locks() can fail if it\u0027s interrupted by signals.\n\nWhen mmu_notifier_register returns, we must be sure that the driver is\nnotified if some task is in the middle of a vmtruncate for the \u0027mm\u0027 where\nthe mmu notifier was registered (mmu_notifier_invalidate_range_start/end\nis run around the vmtruncation but mmu_notifier_register can run after\nmmu_notifier_invalidate_range_start and before\nmmu_notifier_invalidate_range_end).  Same problem for rmap paths.  And\nwe\u0027ve to remove page pinning to avoid replicating the tlb_gather logic\ninside KVM (and GRU doesn\u0027t work well with page pinning regardless of\nneeding tlb_gather), so without mm_take_all_locks when vmtruncate frees\nthe page, kvm would have no way to notice that it mapped into sptes a page\nthat is going into the freelist without a chance of any further\nmmu_notifier notification.\n\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: Andrea Arcangeli \u003candrea@qumranet.com\u003e\nAcked-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nCc: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nCc: Jack Steiner \u003csteiner@sgi.com\u003e\nCc: Robin Holt \u003cholt@sgi.com\u003e\nCc: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Kanoj Sarcar \u003ckanojsarcar@yahoo.com\u003e\nCc: Roland Dreier \u003crdreier@cisco.com\u003e\nCc: Steve Wise \u003cswise@opengridcomputing.com\u003e\nCc: Avi Kivity \u003cavi@qumranet.com\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: Anthony Liguori \u003caliguori@us.ibm.com\u003e\nCc: Chris Wright \u003cchrisw@redhat.com\u003e\nCc: Marcelo Tosatti \u003cmarcelo@kvack.org\u003e\nCc: Eric Dumazet \u003cdada1@cosmosbay.com\u003e\nCc: \"Paul E. McKenney\" \u003cpaulmck@us.ibm.com\u003e\nCc: Izik Eidus \u003cizike@qumranet.com\u003e\nCc: Anthony Liguori \u003caliguori@us.ibm.com\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "bed7161a519a2faef53e1bce1b47595e297c1d14",
      "tree": "fbc0541340465f7d83221b829a9382cac2855916",
      "parents": [
        "8697d33194faae6fdd6b2e799f6308aa00cfdf67"
      ],
      "author": {
        "name": "Balbir Singh",
        "email": "balbir@linux.vnet.ibm.com",
        "time": "Thu Feb 07 00:14:01 2008 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Thu Feb 07 08:42:19 2008 -0800"
      },
      "message": "Memory controller: make page_referenced() cgroup aware\n\nMake page_referenced() cgroup aware.  Without this patch, page_referenced()\ncan cause a page to be skipped while reclaiming pages.  This patch ensures\nthat other cgroups do not hold pages in a particular cgroup hostage.  It\nis required to ensure that shared pages are freed from a cgroup when they\nare not actively referenced from the cgroup that brought them in\n\nSigned-off-by: Balbir Singh \u003cbalbir@linux.vnet.ibm.com\u003e\nCc: Pavel Emelianov \u003cxemul@openvz.org\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nCc: Kirill Korotaev \u003cdev@sw.ru\u003e\nCc: Herbert Poetzl \u003cherbert@13thfloor.at\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nCc: Vaidyanathan Srinivasan \u003csvaidy@linux.vnet.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": "c97a9e10eaee328e6eea9f76acf7bacd7d48ef56",
      "tree": "f14bf796d087e130452a2e2457c75eb1eca27483",
      "parents": [
        "ea125892a17f43919c726777ed1e4929d41e7984"
      ],
      "author": {
        "name": "Nick Piggin",
        "email": "npiggin@suse.de",
        "time": "Wed May 16 22:11:21 2007 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Thu May 17 05:23:06 2007 -0700"
      },
      "message": "mm: more rmap checking\n\nRe-introduce rmap verification patches that Hugh removed when he removed\nPG_map_lock. PG_map_lock actually isn\u0027t needed to synchronise access to\nanonymous pages, because PG_locked and PTL together already do.\n\nThese checks were important in discovering and fixing a rare rmap corruption\nin SLES9.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\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": "7de6b8057976584e5a422574cae4dd21c677b4d4",
      "tree": "900bc533401715eec4e44b73e388a74f08b3f1a5",
      "parents": [
        "19900cdee29c812857ce938ab449e1053d516252"
      ],
      "author": {
        "name": "Nick Piggin",
        "email": "nickpiggin@yahoo.com.au",
        "time": "Fri Dec 22 01:09:33 2006 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.osdl.org",
        "time": "Fri Dec 22 08:55:49 2006 -0800"
      },
      "message": "[PATCH] mm: more rmap debugging\n\nAdd more debugging in the rmap code in an attempt to locate to source of\nthe occasional \"mapcount went negative\" assertions.\n\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": "e18b890bb0881bbab6f4f1a6cd20d9c60d66b003",
      "tree": "4828be07e1c24781c264b42c5a75bcd968223c3f",
      "parents": [
        "441e143e95f5aa1e04026cb0aa71c801ba53982f"
      ],
      "author": {
        "name": "Christoph Lameter",
        "email": "clameter@sgi.com",
        "time": "Wed Dec 06 20:33:20 2006 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.osdl.org",
        "time": "Thu Dec 07 08:39:25 2006 -0800"
      },
      "message": "[PATCH] slab: remove kmem_cache_t\n\nReplace all uses of kmem_cache_t with struct kmem_cache.\n\nThe patch was generated using the following script:\n\n\t#!/bin/sh\n\t#\n\t# Replace one string by another in all the kernel sources.\n\t#\n\n\tset -e\n\n\tfor file in `find * -name \"*.c\" -o -name \"*.h\"|xargs grep -l $1`; do\n\t\tquilt add $file\n\t\tsed -e \"1,\\$s/$1/$2/g\" $file \u003e/tmp/$$\n\t\tmv /tmp/$$ $file\n\t\tquilt refresh\n\tdone\n\nThe script was run like this\n\n\tsh replace kmem_cache_t \"struct kmem_cache\"\n\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "e94b1766097d53e6f3ccfb36c8baa562ffeda3fc",
      "tree": "93fa0a8ab84976d4e89c50768ca8b8878d642a0d",
      "parents": [
        "54e6ecb23951b195d02433a741c7f7cb0b796c78"
      ],
      "author": {
        "name": "Christoph Lameter",
        "email": "clameter@sgi.com",
        "time": "Wed Dec 06 20:33:17 2006 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.osdl.org",
        "time": "Thu Dec 07 08:39:24 2006 -0800"
      },
      "message": "[PATCH] slab: remove SLAB_KERNEL\n\nSLAB_KERNEL is an alias of GFP_KERNEL.\n\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "d08b3851da41d0ee60851f2c75b118e1f7a5fc89",
      "tree": "a01f6930a1387e8f66607e2fe16c62bb7044353b",
      "parents": [
        "725d704ecaca4a43f067092c140d4f3271cf2856"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Mon Sep 25 23:30:57 2006 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Tue Sep 26 08:48:44 2006 -0700"
      },
      "message": "[PATCH] mm: tracking shared dirty pages\n\nTracking of dirty pages in shared writeable mmap()s.\n\nThe idea is simple: write protect clean shared writeable pages, catch the\nwrite-fault, make writeable and set dirty.  On page write-back clean all the\nPTE dirty bits and write protect them once again.\n\nThe implementation is a tad harder, mainly because the default\nbacking_dev_info capabilities were too loosely maintained.  Hence it is not\nenough to test the backing_dev_info for cap_account_dirty.\n\nThe current heuristic is as follows, a VMA is eligible when:\n - its shared writeable\n    (vm_flags \u0026 (VM_WRITE|VM_SHARED)) \u003d\u003d (VM_WRITE|VM_SHARED)\n - it is not a \u0027special\u0027 mapping\n    (vm_flags \u0026 (VM_PFNMAP|VM_INSERTPAGE)) \u003d\u003d 0\n - the backing_dev_info is cap_account_dirty\n    mapping_cap_account_dirty(vma-\u003evm_file-\u003ef_mapping)\n - f_op-\u003emmap() didn\u0027t change the default page protection\n\nPage from remap_pfn_range() are explicitly excluded because their COW\nsemantics are already horrid enough (see vm_normal_page() in do_wp_page()) and\nbecause they don\u0027t have a backing store anyway.\n\nmprotect() is taught about the new behaviour as well.  However it overrides\nthe last condition.\n\nCleaning the pages on write-back is done with page_mkclean() a new rmap call.\nIt can be called on any page, but is currently only implemented for mapped\npages, if the page is found the be of a VMA that accounts dirty pages it will\nalso wrprotect the PTE.\n\nFinally, in fs/buffers.c:try_to_free_buffers(); remove clear_page_dirty() from\nunder -\u003eprivate_lock.  This seems to be safe, since -\u003eprivate_lock is used to\nserialize access to the buffers, not the page itself.  This is needed because\nclear_page_dirty() will call into page_mkclean() and would thereby violate\nlocking order.\n\n[dhowells@redhat.com: Provide a page_mkclean() implementation for NOMMU]\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "d75a0fcda2cfc71b50e16dc89e0c32c57d427e85",
      "tree": "cc9dda0a0e53e62c859bf7fcafe7b9c9f6de2352",
      "parents": [
        "0697212a411c1dae03c27845f2de2f3adb32c331"
      ],
      "author": {
        "name": "Christoph Lameter",
        "email": "clameter@sgi.com",
        "time": "Fri Jun 23 02:03:36 2006 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Fri Jun 23 07:42:50 2006 -0700"
      },
      "message": "[PATCH] Swapless page migration: rip out swap based logic\n\nRip the page migration logic out.\n\nRemove all code that has to do with swapping during page migration.\n\nThis also guts the ability to migrate pages to swap.  No one used that so lets\nlet it go for good.\n\nPage migration should be a bit broken after this patch.\n\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "62c4f0a2d5a188f73a94f2cb8ea0dba3e7cf0a7f",
      "tree": "e85ca2d0dd43f90dccf758338764c3caa55f333f",
      "parents": [
        "089f26d5e31b7bf42a9a8fefec08b30cd27f4b0e"
      ],
      "author": {
        "name": "David Woodhouse",
        "email": "dwmw2@infradead.org",
        "time": "Wed Apr 26 12:56:16 2006 +0100"
      },
      "committer": {
        "name": "David Woodhouse",
        "email": "dwmw2@infradead.org",
        "time": "Wed Apr 26 12:56:16 2006 +0100"
      },
      "message": "Don\u0027t include linux/config.h from anywhere else in include/\n\nSigned-off-by: David Woodhouse \u003cdwmw2@infradead.org\u003e\n"
    },
    {
      "commit": "a3351e525e4768c29aa5d22ef59b5b38e0361e53",
      "tree": "457ab54f402b471c5158e8b361d059e88ab8cd62",
      "parents": [
        "a48d07afdf18212de22b959715b16793c5a6e57a"
      ],
      "author": {
        "name": "Christoph Lameter",
        "email": "clameter@sgi.com",
        "time": "Wed Feb 01 03:05:39 2006 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Wed Feb 01 08:53:16 2006 -0800"
      },
      "message": "[PATCH] Direct Migration V9: remove_from_swap() to remove swap ptes\n\nAdd remove_from_swap\n\nremove_from_swap() allows the restoration of the pte entries that existed\nbefore page migration occurred for anonymous pages by walking the reverse\nmaps.  This reduces swap use and establishes regular pte\u0027s without the need\nfor page faults.\n\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "a48d07afdf18212de22b959715b16793c5a6e57a",
      "tree": "36d5963c29ceb5c2f6df53036cef5c0d30383dbf",
      "parents": [
        "b16664e44c54525be89dc07ad15a13b4eeec5634"
      ],
      "author": {
        "name": "Christoph Lameter",
        "email": "clameter@sgi.com",
        "time": "Wed Feb 01 03:05:38 2006 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Wed Feb 01 08:53:16 2006 -0800"
      },
      "message": "[PATCH] Direct Migration V9: migrate_pages() extension\n\nAdd direct migration support with fall back to swap.\n\nDirect migration support on top of the swap based page migration facility.\n\nThis allows the direct migration of anonymous pages and the migration of file\nbacked pages by dropping the associated buffers (requires writeout).\n\nFall back to swap out if necessary.\n\nThe patch is based on lots of patches from the hotplug project but the code\nwas restructured, documented and simplified as much as possible.\n\nNote that an additional patch that defines the migrate_page() method for\nfilesystems is necessary in order to avoid writeback for anonymous and file\nbacked pages.\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Mike Kravetz \u003ckravetz@us.ibm.com\u003e\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "9617d95e6e9ffd883cf90a89724fe60d7ab22f9a",
      "tree": "67d555d34d931bd253fbc4959ffdb1e5b904f2b0",
      "parents": [
        "224abf92b2f439a9030f21d2926ec8047d1ffcdb"
      ],
      "author": {
        "name": "Nick Piggin",
        "email": "nickpiggin@yahoo.com.au",
        "time": "Fri Jan 06 00:11:12 2006 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Fri Jan 06 08:33:27 2006 -0800"
      },
      "message": "[PATCH] mm: rmap optimisation\n\nOptimise rmap functions by minimising atomic operations when we know there\nwill be no concurrent modifications.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\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": "f7b7fd8f3ebbb2810d6893295aa984acd0fd30db",
      "tree": "01afc1edafc50a3c65ec8576c05c60da53d8d242",
      "parents": [
        "a93a117eaa0bec426d4671a49bfa96a6fdcd2ac9"
      ],
      "author": {
        "name": "Rik van Riel",
        "email": "riel@redhat.com",
        "time": "Mon Nov 28 13:44:07 2005 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Mon Nov 28 14:42:25 2005 -0800"
      },
      "message": "[PATCH] temporarily disable swap token on memory pressure\n\nSome users (hi Zwane) have seen a problem when running a workload that\neats nearly all of physical memory - th system does an OOM kill, even\nwhen there is still a lot of swap free.\n\nThe problem appears to be a very big task that is holding the swap\ntoken, and the VM has a very hard time finding any other page in the\nsystem that is swappable.\n\nInstead of ignoring the swap token when sc-\u003epriority reaches 0, we could\nsimply take the swap token away from the memory hog and make sure we\ndon\u0027t give it back to the memory hog for a few seconds.\n\nThis patch resolves the problem Zwane ran into.\n\nSigned-off-by: Rik van Riel \u003criel@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "c0718806cf955d5eb51ea77bffb5b21d9bba4972",
      "tree": "bd29659bbff68604127439ec8144230a40772621",
      "parents": [
        "67b02f119df50ffad5a4e9e53ea4c896535862cd"
      ],
      "author": {
        "name": "Hugh Dickins",
        "email": "hugh@veritas.com",
        "time": "Sat Oct 29 18:16:31 2005 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Sat Oct 29 21:40:41 2005 -0700"
      },
      "message": "[PATCH] mm: rmap with inner ptlock\n\nrmap\u0027s page_check_address descend without page_table_lock.  First just\npte_offset_map in case there\u0027s no pte present worth locking for, then take\npage_table_lock for the full check, and pass ptl back to caller in the same\nstyle as pte_offset_map_lock.  __xip_unmap, page_referenced_one and\ntry_to_unmap_one use pte_unmap_unlock.  try_to_unmap_cluster also.\n\npage_check_address reformatted to avoid progressive indentation.  No use is\nmade of its one error code, return NULL when it fails.\n\nSigned-off-by: 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": "ceffc078528befc008c6f2c2c4decda79eabd534",
      "tree": "a289e10162bdef0c0d9f6533f1a647b0fe1ed7a9",
      "parents": [
        "420edbcc09008342c7b2665453f6b370739aadb0"
      ],
      "author": {
        "name": "Carsten Otte",
        "email": "cotte@de.ibm.com",
        "time": "Thu Jun 23 22:05:25 2005 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@ppc970.osdl.org",
        "time": "Fri Jun 24 00:06:41 2005 -0700"
      },
      "message": "[PATCH] xip: fs/mm: execute in place\n\n- generic_file* file operations do no longer have a xip/non-xip split\n- filemap_xip.c implements a new set of fops that require get_xip_page\n  aop to work proper. all new fops are exported GPL-only (don\u0027t like to\n  see whatever code use those except GPL modules)\n- __xip_unmap now uses page_check_address, which is no longer static\n  in rmap.c, and defined in linux/rmap.h\n- mm/filemap.h is now much more clean, plainly having just Linus\u0027\n  inline funcs moved here from filemap.c\n- fix includes in filemap_xip to make it build cleanly on i386\n\nSigned-off-by: Carsten Otte \u003ccotte@de.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
      "tree": "0bba044c4ce775e45a88a51686b5d9f90697ea9d",
      "parents": [],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@ppc970.osdl.org",
        "time": "Sat Apr 16 15:20:36 2005 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@ppc970.osdl.org",
        "time": "Sat Apr 16 15:20:36 2005 -0700"
      },
      "message": "Linux-2.6.12-rc2\n\nInitial git repository build. I\u0027m not bothering with the full history,\neven though we have it. We can create a separate \"historical\" git\narchive of that later if we want to, and in the meantime it\u0027s about\n3.2GB when imported into git - space that would just make the early\ngit days unnecessarily complicated, when we don\u0027t have a lot of good\ninfrastructure for it.\n\nLet it rip!\n"
    }
  ]
}