)]}'
{
  "log": [
    {
      "commit": "370c28def65b3a5765192753a164403619b41d01",
      "tree": "cb77542b92402cdd3aec14d01597fe04bd19b44b",
      "parents": [
        "92f7ba70eecf4da8264a767b181cc2090f62d4ad"
      ],
      "author": {
        "name": "Hugh Dickins",
        "email": "hugh.dickins@tiscali.co.uk",
        "time": "Mon Oct 26 16:49:32 2009 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Oct 29 07:39:25 2009 -0700"
      },
      "message": "hwpoison: fix/proc/meminfo alignment\n\nGiven such a long name, the kB count in /proc/meminfo\u0027s HardwareCorrupted\nline is being shown too far right (it does align with x86_64\u0027s VmallocChunk\nabove, but I hope nobody will ever have that much corrupted!).  Align it.\n\nSigned-off-by: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nCc: Andi Kleen \u003candi@firstfloor.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "db16826367fefcb0ddb93d76b66adc52eb4e6339",
      "tree": "626224c1eb1eb79c522714591f208b4fdbdcd9d4",
      "parents": [
        "cd6045138ed1bb5d8773e940d51c34318eef3ef2",
        "465fdd97cbe16ef8727221857e96ef62dd352017"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Sep 24 07:53:22 2009 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Sep 24 07:53:22 2009 -0700"
      },
      "message": "Merge branch \u0027hwpoison\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6\n\n* \u0027hwpoison\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6: (21 commits)\n  HWPOISON: Enable error_remove_page on btrfs\n  HWPOISON: Add simple debugfs interface to inject hwpoison on arbitary PFNs\n  HWPOISON: Add madvise() based injector for hardware poisoned pages v4\n  HWPOISON: Enable error_remove_page for NFS\n  HWPOISON: Enable .remove_error_page for migration aware file systems\n  HWPOISON: The high level memory error handler in the VM v7\n  HWPOISON: Add PR_MCE_KILL prctl to control early kill behaviour per process\n  HWPOISON: shmem: call set_page_dirty() with locked page\n  HWPOISON: Define a new error_remove_page address space op for async truncation\n  HWPOISON: Add invalidate_inode_page\n  HWPOISON: Refactor truncate to allow direct truncating of page v2\n  HWPOISON: check and isolate corrupted free pages v2\n  HWPOISON: Handle hardware poisoned pages in try_to_unmap\n  HWPOISON: Use bitmask/action code for try_to_unmap behaviour\n  HWPOISON: x86: Add VM_FAULT_HWPOISON handling to x86 page fault handler v2\n  HWPOISON: Add poison check to page fault handling\n  HWPOISON: Add basic support for poisoned pages in fault handler v3\n  HWPOISON: Add new SIGBUS error codes for hardware poison signals\n  HWPOISON: Add support for poison swap entries v2\n  HWPOISON: Export some rmap vma locking to outside world\n  ...\n"
    },
    {
      "commit": "4b02108ac1b3354a22b0d83c684797692efdc395",
      "tree": "9f65d6e8e35ddce940e7b9da6305cf5a19e5904e",
      "parents": [
        "c6a7f5728a1db45d30df55a01adc130b4ab0327c"
      ],
      "author": {
        "name": "KOSAKI Motohiro",
        "email": "kosaki.motohiro@jp.fujitsu.com",
        "time": "Mon Sep 21 17:01:33 2009 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Tue Sep 22 07:17:27 2009 -0700"
      },
      "message": "mm: oom analysis: add shmem vmstat\n\nRecently we encountered OOM problems due to memory use of the GEM cache.\nGenerally a large amuont of Shmem/Tmpfs pages tend to create a memory\nshortage problem.\n\nWe often use the following calculation to determine the amount of shmem\npages:\n\nshmem \u003d NR_ACTIVE_ANON + NR_INACTIVE_ANON - NR_ANON_PAGES\n\nhowever the expression does not consider isolated and mlocked pages.\n\nThis patch adds explicit accounting for pages used by shmem and tmpfs.\n\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nAcked-by: Rik van Riel \u003criel@redhat.com\u003e\nReviewed-by: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nAcked-by: Wu Fengguang \u003cfengguang.wu@intel.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nCc: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "c6a7f5728a1db45d30df55a01adc130b4ab0327c",
      "tree": "36649bc6ebb959841a5097c699968722cfd99c4d",
      "parents": [
        "71de1ccbe1fb40203edd3beb473f8580d917d2ca"
      ],
      "author": {
        "name": "KOSAKI Motohiro",
        "email": "kosaki.motohiro@jp.fujitsu.com",
        "time": "Mon Sep 21 17:01:32 2009 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Tue Sep 22 07:17:27 2009 -0700"
      },
      "message": "mm: oom analysis: Show kernel stack usage in /proc/meminfo and OOM log output\n\nThe amount of memory allocated to kernel stacks can become significant and\ncause OOM conditions.  However, we do not display the amount of memory\nconsumed by stacks.\n\nAdd code to display the amount of memory used for stacks in /proc/meminfo.\n\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nReviewed-by: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nReviewed-by: Minchan Kim \u003cminchan.kim@gmail.com\u003e\nReviewed-by: Rik van Riel \u003criel@redhat.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "6a46079cf57a7f7758e8b926980a4f852f89b34d",
      "tree": "efd72e830201370d6273bd436dda5a3c4cd6ed9b",
      "parents": [
        "4db96cf077aa938b11fe7ac79ecc9b29ec00fbab"
      ],
      "author": {
        "name": "Andi Kleen",
        "email": "andi@firstfloor.org",
        "time": "Wed Sep 16 11:50:15 2009 +0200"
      },
      "committer": {
        "name": "Andi Kleen",
        "email": "ak@linux.intel.com",
        "time": "Wed Sep 16 11:50:15 2009 +0200"
      },
      "message": "HWPOISON: The high level memory error handler in the VM v7\n\nAdd the high level memory handler that poisons pages\nthat got corrupted by hardware (typically by a two bit flip in a DIMM\nor a cache) on the Linux level. The goal is to prevent everyone\nfrom accessing these pages in the future.\n\nThis done at the VM level by marking a page hwpoisoned\nand doing the appropriate action based on the type of page\nit is.\n\nThe code that does this is portable and lives in mm/memory-failure.c\n\nTo quote the overview comment:\n\nHigh level machine check handler. Handles pages reported by the\nhardware as being corrupted usually due to a 2bit ECC memory or cache\nfailure.\n\nThis focuses on pages detected as corrupted in the background.\nWhen the current CPU tries to consume corruption the currently\nrunning process can just be killed directly instead. This implies\nthat if the error cannot be handled for some reason it\u0027s safe to\njust ignore it because no corruption has been consumed yet. Instead\nwhen that happens another machine check will happen.\n\nHandles page cache pages in various states. The tricky part\nhere is that we can access any page asynchronous to other VM\nusers, because memory failures could happen anytime and anywhere,\npossibly violating some of their assumptions. This is why this code\nhas to be extremely careful. Generally it tries to use normal locking\nrules, as in get the standard locks, even if that means the\nerror handling takes potentially a long time.\n\nSome of the operations here are somewhat inefficient and have non\nlinear algorithmic complexity, because the data structures have not\nbeen optimized for this case. This is in particular the case\nfor the mapping from a vma to a process. Since this case is expected\nto be rare we hope we can get away with this.\n\nThere are in principle two strategies to kill processes on poison:\n- just unmap the data and wait for an actual reference before\nkilling\n- kill as soon as corruption is detected.\nBoth have advantages and disadvantages and should be used\nin different situations. Right now both are implemented and can\nbe switched with a new sysctl vm.memory_failure_early_kill\nThe default is early kill.\n\nThe patch does some rmap data structure walking on its own to collect\nprocesses to kill. This is unusual because normally all rmap data structure\nknowledge is in rmap.c only. I put it here for now to keep\neverything together and rmap knowledge has been seeping out anyways\n\nIncludes contributions from Johannes Weiner, Chris Mason, Fengguang Wu,\nNick Piggin (who did a lot of great work) and others.\n\nCc: npiggin@suse.de\nCc: riel@redhat.com\nSigned-off-by: Andi Kleen \u003cak@linux.intel.com\u003e\nAcked-by: Rik van Riel \u003criel@redhat.com\u003e\nReviewed-by: Hidehiro Kawai \u003chidehiro.kawai.ez@hitachi.com\u003e\n"
    },
    {
      "commit": "6837765963f1723e80ca97b1fae660f3a60d77df",
      "tree": "a9a6ed4b7e3bf188966da78b04bf39298f24375a",
      "parents": [
        "bce7394a3ef82b8477952fbab838e4a6e8cb47d2"
      ],
      "author": {
        "name": "KOSAKI Motohiro",
        "email": "kosaki.motohiro@jp.fujitsu.com",
        "time": "Tue Jun 16 15:32:51 2009 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Tue Jun 16 19:47:42 2009 -0700"
      },
      "message": "mm: remove CONFIG_UNEVICTABLE_LRU config option\n\nCurrently, nobody wants to turn UNEVICTABLE_LRU off.  Thus this\nconfigurability is unnecessary.\n\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Johannes Weiner \u003channes@cmpxchg.org\u003e\nCc: Andi Kleen \u003candi@firstfloor.org\u003e\nAcked-by: Minchan Kim \u003cminchan.kim@gmail.com\u003e\nCc: David Woodhouse \u003cdwmw2@infradead.org\u003e\nCc: Matt Mackall \u003cmpm@selenic.com\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nCc: Lee Schermerhorn \u003clee.schermerhorn@hp.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "00a62ce91e554198ef28234c91c36f850f5a3bc9",
      "tree": "367ef134219deef91903c3fa0eb108c13658f2c7",
      "parents": [
        "0763ed2355198cdef2f6a2098e9d52eb1fe4365d"
      ],
      "author": {
        "name": "KOSAKI Motohiro",
        "email": "kosaki.motohiro@jp.fujitsu.com",
        "time": "Thu Apr 30 15:08:51 2009 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Sat May 02 15:36:10 2009 -0700"
      },
      "message": "mm: fix Committed_AS underflow on large NR_CPUS environment\n\nThe Committed_AS field can underflow in certain situations:\n\n\u003e         # while true; do cat /proc/meminfo  | grep _AS; sleep 1; done | uniq -c\n\u003e               1 Committed_AS: 18446744073709323392 kB\n\u003e              11 Committed_AS: 18446744073709455488 kB\n\u003e               6 Committed_AS:    35136 kB\n\u003e               5 Committed_AS: 18446744073709454400 kB\n\u003e               7 Committed_AS:    35904 kB\n\u003e               3 Committed_AS: 18446744073709453248 kB\n\u003e               2 Committed_AS:    34752 kB\n\u003e               9 Committed_AS: 18446744073709453248 kB\n\u003e               8 Committed_AS:    34752 kB\n\u003e               3 Committed_AS: 18446744073709320960 kB\n\u003e               7 Committed_AS: 18446744073709454080 kB\n\u003e               3 Committed_AS: 18446744073709320960 kB\n\u003e               5 Committed_AS: 18446744073709454080 kB\n\u003e               6 Committed_AS: 18446744073709320960 kB\n\nBecause NR_CPUS can be greater than 1000 and meminfo_proc_show() does\nnot check for underflow.\n\nBut NR_CPUS proportional isn\u0027t good calculation.  In general,\npossibility of lock contention is proportional to the number of online\ncpus, not theorical maximum cpus (NR_CPUS).\n\nThe current kernel has generic percpu-counter stuff.  using it is right\nway.  it makes code simplify and percpu_counter_read_positive() don\u0027t\nmake underflow issue.\n\nReported-by: Dave Hansen \u003cdave@linux.vnet.ibm.com\u003e\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Eric B Munson \u003cebmunson@us.ibm.com\u003e\nCc: Mel Gorman \u003cmel@csn.ul.ie\u003e\nCc: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nCc: \u003cstable@kernel.org\u003e\t\t[All kernel versions]\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "33e5d76979cf01e3834814fe0aea569d1d602c1a",
      "tree": "58a03e5da59db203245da10db144a4f6f61a83ba",
      "parents": [
        "5482415a5ecc0cd791a5d885cc3db8281401078f"
      ],
      "author": {
        "name": "David Howells",
        "email": "dhowells@redhat.com",
        "time": "Thu Apr 02 16:56:32 2009 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Apr 02 19:04:48 2009 -0700"
      },
      "message": "nommu: fix a number of issues with the per-MM VMA patch\n\nFix a number of issues with the per-MM VMA patch:\n\n (1) Make mmap_pages_allocated an atomic_long_t, just in case this is used on\n     a NOMMU system with more than 2G pages.  Makes no difference on a 32-bit\n     system.\n\n (2) Report vma-\u003evm_pgoff * PAGE_SIZE as a 64-bit value, not a 32-bit value,\n     lest it overflow.\n\n (3) Move the allocation of the vm_area_struct slab back for fork.c.\n\n (4) Use KMEM_CACHE() for both vm_area_struct and vm_region slabs.\n\n (5) Use BUG_ON() rather than if () BUG().\n\n (6) Make the default validate_nommu_regions() a static inline rather than a\n     #define.\n\n (7) Make free_page_series()\u0027s objection to pages with a refcount !\u003d 1 more\n     informative.\n\n (8) Adjust the __put_nommu_region() banner comment to indicate that the\n     semaphore must be held for writing.\n\n (9) Limit the number of warnings about munmaps of non-mmapped regions.\n\nReported-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nCc: Greg Ungerer \u003cgerg@snapgear.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "8feae13110d60cc6287afabc2887366b0eb226c2",
      "tree": "b3188986faab70e753e00ea8670a11ba8ec844c0",
      "parents": [
        "41836382ebb415d68d3ebc4525e78e871fe58baf"
      ],
      "author": {
        "name": "David Howells",
        "email": "dhowells@redhat.com",
        "time": "Thu Jan 08 12:04:47 2009 +0000"
      },
      "committer": {
        "name": "David Howells",
        "email": "dhowells@redhat.com",
        "time": "Thu Jan 08 12:04:47 2009 +0000"
      },
      "message": "NOMMU: Make VMAs per MM as for MMU-mode linux\n\nMake VMAs per mm_struct as for MMU-mode linux.  This solves two problems:\n\n (1) In SYSV SHM where nattch for a segment does not reflect the number of\n     shmat\u0027s (and forks) done.\n\n (2) In mmap() where the VMA\u0027s vm_mm is set to point to the parent mm by an\n     exec\u0027ing process when VM_EXECUTABLE is specified, regardless of the fact\n     that a VMA might be shared and already have its vm_mm assigned to another\n     process or a dead process.\n\nA new struct (vm_region) is introduced to track a mapped region and to remember\nthe circumstances under which it may be shared and the vm_list_struct structure\nis discarded as it\u0027s no longer required.\n\nThis patch makes the following additional changes:\n\n (1) Regions are now allocated with alloc_pages() rather than kmalloc() and\n     with no recourse to __GFP_COMP, so the pages are not composite.  Instead,\n     each page has a reference on it held by the region.  Anything else that is\n     interested in such a page will have to get a reference on it to retain it.\n     When the pages are released due to unmapping, each page is passed to\n     put_page() and will be freed when the page usage count reaches zero.\n\n (2) Excess pages are trimmed after an allocation as the allocation must be\n     made as a power-of-2 quantity of pages.\n\n (3) VMAs are added to the parent MM\u0027s R/B tree and mmap lists.  As an MM may\n     end up with overlapping VMAs within the tree, the VMA struct address is\n     appended to the sort key.\n\n (4) Non-anonymous VMAs are now added to the backing inode\u0027s prio list.\n\n (5) Holes may be punched in anonymous VMAs with munmap(), releasing parts of\n     the backing region.  The VMA and region structs will be split if\n     necessary.\n\n (6) sys_shmdt() only releases one attachment to a SYSV IPC shared memory\n     segment instead of all the attachments at that addresss.  Multiple\n     shmat()\u0027s return the same address under NOMMU-mode instead of different\n     virtual addresses as under MMU-mode.\n\n (7) Core dumping for ELF-FDPIC requires fewer exceptions for NOMMU-mode.\n\n (8) /proc/maps is now the global list of mapped regions, and may list bits\n     that aren\u0027t actually mapped anywhere.\n\n (9) /proc/meminfo gains a line (tagged \"MmapCopy\") that indicates the amount\n     of RAM currently allocated by mmap to hold mappable regions that can\u0027t be\n     mapped directly.  These are copies of the backing device or file if not\n     anonymous.\n\nThese changes make NOMMU mode more similar to MMU mode.  The downside is that\nNOMMU mode requires some extra memory to track things over NOMMU without this\npatch (VMAs are no longer shared, and there are now region structs).\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nTested-by: Mike Frysinger \u003cvapier.adi@gmail.com\u003e\nAcked-by: Paul Mundt \u003clethal@linux-sh.org\u003e\n"
    },
    {
      "commit": "e1759c215bee5abbcb6cb066590ab20905154ed5",
      "tree": "14a43e259767082706dab112292ff92e13ce42a4",
      "parents": [
        "9617760287eec9091d26e6967bd3e4194de18f97"
      ],
      "author": {
        "name": "Alexey Dobriyan",
        "email": "adobriyan@gmail.com",
        "time": "Wed Oct 15 23:50:22 2008 +0400"
      },
      "committer": {
        "name": "Alexey Dobriyan",
        "email": "adobriyan@gmail.com",
        "time": "Thu Oct 23 13:52:40 2008 +0400"
      },
      "message": "proc: switch /proc/meminfo to seq_file\n\nand move it to fs/proc/meminfo.c while I\u0027m at it.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\n"
    }
  ]
}