)]}'
{
  "log": [
    {
      "commit": "68c9d702bb72f367f3b148963ec6cf5e07ff7f65",
      "tree": "16fc61a1bd973c14a7858ab1fbcb306d3ae75184",
      "parents": [
        "00dc417fa3e763345b34ccb6034d72de76eea0a1"
      ],
      "author": {
        "name": "Josef Bacik",
        "email": "jbacik@redhat.com",
        "time": "Fri Oct 03 17:32:43 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Fri Oct 03 17:32:43 2008 -0400"
      },
      "message": "generic block based fiemap implementation\n\nAny block based fs (this patch includes ext3) just has to declare its own\nfiemap() function and then call this generic function with its own\nget_block_t. This works well for block based filesystems that will map\nmultiple contiguous blocks at one time, but will work for filesystems that\nonly map one block at a time, you will just end up with an \"extent\" for each\nblock. One gotcha is this will not play nicely where there is hole+data\nafter the EOF. This function will assume its hit the end of the data as soon\nas it hits a hole after the EOF, so if there is any data past that it will\nnot pick that up. AFAIK no block based fs does this anyway, but its in the\ncomments of the function anyway just in case.\n\nSigned-off-by: Josef Bacik \u003cjbacik@redhat.com\u003e\nSigned-off-by: Mark Fasheh \u003cmfasheh@suse.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\nCc: linux-fsdevel@vger.kernel.org\n"
    },
    {
      "commit": "8ab22b9abb5c55413802e4adc9aa6223324547c3",
      "tree": "cff3319e1275e8a7c083d492889ec6bd0c7712d3",
      "parents": [
        "d84a52f62f6a396ed77aa0052da74ca9e760b28a"
      ],
      "author": {
        "name": "Hisashi Hifumi",
        "email": "hifumi.hisashi@oss.ntt.co.jp",
        "time": "Mon Jul 28 15:46:36 2008 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Mon Jul 28 16:30:21 2008 -0700"
      },
      "message": "vfs: pagecache usage optimization for pagesize!\u003dblocksize\n\nWhen we read some part of a file through pagecache, if there is a\npagecache of corresponding index but this page is not uptodate, read IO\nis issued and this page will be uptodate.\n\nI think this is good for pagesize \u003d\u003d blocksize environment but there is\nroom for improvement on pagesize !\u003d blocksize environment.  Because in\nthis case a page can have multiple buffers and even if a page is not\nuptodate, some buffers can be uptodate.\n\nSo I suggest that when all buffers which correspond to a part of a file\nthat we want to read are uptodate, use this pagecache and copy data from\nthis pagecache to user buffer even if a page is not uptodate.  This can\nreduce read IO and improve system throughput.\n\nI wrote a benchmark program and got result number with this program.\n\nThis benchmark do:\n\n  1: mount and open a test file.\n\n  2: create a 512MB file.\n\n  3: close a file and umount.\n\n  4: mount and again open a test file.\n\n  5: pwrite randomly 300000 times on a test file.  offset is aligned\n     by IO size(1024bytes).\n\n  6: measure time of preading randomly 100000 times on a test file.\n\nThe result was:\n\t2.6.26\n        330 sec\n\n\t2.6.26-patched\n        226 sec\n\nArch:i386\nFilesystem:ext3\nBlocksize:1024 bytes\nMemory: 1GB\n\nOn ext3/4, a file is written through buffer/block.  So random read/write\nmixed workloads or random read after random write workloads are optimized\nwith this patch under pagesize !\u003d blocksize environment.  This test result\nshowed this.\n\nThe benchmark program is as follows:\n\n#include \u003cstdio.h\u003e\n#include \u003csys/types.h\u003e\n#include \u003csys/stat.h\u003e\n#include \u003cfcntl.h\u003e\n#include \u003cunistd.h\u003e\n#include \u003ctime.h\u003e\n#include \u003cstdlib.h\u003e\n#include \u003cstring.h\u003e\n#include \u003csys/mount.h\u003e\n\n#define LEN 1024\n#define LOOP 1024*512 /* 512MB */\n\nmain(void)\n{\n\tunsigned long i, offset, filesize;\n\tint fd;\n\tchar buf[LEN];\n\ttime_t t1, t2;\n\n\tif (mount(\"/dev/sda1\", \"/root/test1/\", \"ext3\", 0, 0) \u003c 0) {\n\t\tperror(\"cannot mount\\n\");\n\t\texit(1);\n\t}\n\tmemset(buf, 0, LEN);\n\tfd \u003d open(\"/root/test1/testfile\", O_CREAT|O_RDWR|O_TRUNC);\n\tif (fd \u003c 0) {\n\t\tperror(\"cannot open file\\n\");\n\t\texit(1);\n\t}\n\tfor (i \u003d 0; i \u003c LOOP; i++)\n\t\twrite(fd, buf, LEN);\n\tclose(fd);\n\tif (umount(\"/root/test1/\") \u003c 0) {\n\t\tperror(\"cannot umount\\n\");\n\t\texit(1);\n\t}\n\tif (mount(\"/dev/sda1\", \"/root/test1/\", \"ext3\", 0, 0) \u003c 0) {\n\t\tperror(\"cannot mount\\n\");\n\t\texit(1);\n\t}\n\tfd \u003d open(\"/root/test1/testfile\", O_RDWR);\n\tif (fd \u003c 0) {\n\t\tperror(\"cannot open file\\n\");\n\t\texit(1);\n\t}\n\n\tfilesize \u003d LEN * LOOP;\n\tfor (i \u003d 0; i \u003c 300000; i++){\n\t\toffset \u003d (random() % filesize) \u0026 (~(LEN - 1));\n\t\tpwrite(fd, buf, LEN, offset);\n\t}\n\tprintf(\"start test\\n\");\n\ttime(\u0026t1);\n\tfor (i \u003d 0; i \u003c 100000; i++){\n\t\toffset \u003d (random() % filesize) \u0026 (~(LEN - 1));\n\t\tpread(fd, buf, LEN, offset);\n\t}\n\ttime(\u0026t2);\n\tprintf(\"%ld sec\\n\", t2-t1);\n\tclose(fd);\n\tif (umount(\"/root/test1/\") \u003c 0) {\n\t\tperror(\"cannot umount\\n\");\n\t\texit(1);\n\t}\n}\n\nSigned-off-by: Hisashi Hifumi \u003chifumi.hisashi@oss.ntt.co.jp\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nCc: Christoph Hellwig \u003chch@infradead.org\u003e\nCc: Jan Kara \u003cjack@ucw.cz\u003e\nCc: \u003clinux-ext4@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "4c8b3125f8dcefd1ee2990113fe69cfa9e9fa609",
      "tree": "e78c0c6b51b51e4455f4bb598b3e1c5281cbe377",
      "parents": [
        "24097d12efbb97bff14fb6e350508853db0f9595"
      ],
      "author": {
        "name": "Akinobu Mita",
        "email": "akinobu.mita@gmail.com",
        "time": "Mon Apr 28 02:16:02 2008 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Mon Apr 28 08:58:43 2008 -0700"
      },
      "message": "ext2: use ext2_fsblk_t type\n\nUse ext2_fsblk_t type for filesystem-wide blocks number\n\nSigned-off-by: Akinobu Mita \u003cakinobu.mita@gmail.com\u003e\nCc: \u003clinux-ext4@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "24097d12efbb97bff14fb6e350508853db0f9595",
      "tree": "fb451eaebde9550954493b8a17949e6cce16782d",
      "parents": [
        "bbff28602436cc7ca660757bba81f03b99e8586d"
      ],
      "author": {
        "name": "Akinobu Mita",
        "email": "akinobu.mita@gmail.com",
        "time": "Mon Apr 28 02:16:01 2008 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Mon Apr 28 08:58:43 2008 -0700"
      },
      "message": "ext2: use ext2_group_first_block_no()\n\nUse ext2_group_first_block_no() and assign the return values to\next2_fsblk_t variables.\n\nSigned-off-by: Akinobu Mita \u003cakinobu.mita@gmail.com\u003e\nCc: \u003clinux-ext4@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "70688e4dd1647f0ceb502bbd5964fa344c5eb411",
      "tree": "e0bd8c3b4b6050c067a453d800c2e87948d1abaf",
      "parents": [
        "30afcb4bd2762fa4b87b17ada9500aa46dc10b1b"
      ],
      "author": {
        "name": "Nick Piggin",
        "email": "npiggin@suse.de",
        "time": "Mon Apr 28 02:13:02 2008 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Mon Apr 28 08:58:23 2008 -0700"
      },
      "message": "xip: support non-struct page backed memory\n\nConvert XIP to support non-struct page backed memory, using VM_MIXEDMAP for\nthe user mappings.\n\nThis requires the get_xip_page API to be changed to an address based one.\nImprove the API layering a little bit too, while we\u0027re here.\n\nThis is required in order to support XIP filesystems on memory that isn\u0027t\nbacked with struct page (but memory with struct page is still supported too).\n\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": "1cc8dcf569a3fcefb7ae32652225f2bd3e85257e",
      "tree": "23e065de096ab6cf044458967bea5baa6a98cff0",
      "parents": [
        "c0d1f29534f2bd6c5992831eb0f648522e9b0204"
      ],
      "author": {
        "name": "Benoit Boissinot",
        "email": "benoit.boissinot@ens-lyon.org",
        "time": "Mon Apr 21 22:45:55 2008 +0000"
      },
      "committer": {
        "name": "Jesper Juhl",
        "email": "juhl@hera.kernel.org",
        "time": "Mon Apr 21 22:45:55 2008 +0000"
      },
      "message": "ext*: spelling fix prefered -\u003e preferred\n\nSpelling fix: prefered -\u003e preferred\n\nSigned-off-by: Benoit Boissinot \u003cbenoit.boissinot@ens-lyon.org\u003e\nSigned-off-by: Jesper Juhl \u003cjesper.juhl@gmail.com\u003e\n"
    },
    {
      "commit": "52fcf7032935b33158e3998ed399cac97447ab8d",
      "tree": "65d15b7541614ff52e76cabf6c7ac01ac0d95686",
      "parents": [
        "298384cd7929a3a14d7b116095973f0d02f5d09e"
      ],
      "author": {
        "name": "David Howells",
        "email": "dhowells@redhat.com",
        "time": "Thu Feb 07 00:15:35 2008 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Thu Feb 07 08:42:27 2008 -0800"
      },
      "message": "iget: stop EXT2 from using iget() and read_inode()\n\nStop the EXT2 filesystem from using iget() and read_inode().  Replace\next2_read_inode() with ext2_iget(), and call that instead of iget().\next2_iget() then uses iget_locked() directly and returns a proper error code\ninstead of an inode in the event of an error.\n\next2_fill_super() returns any error incurred when getting the root inode\ninstead of EINVAL.\n\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nAcked-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\nCc: \u003clinux-ext4@vger.kernel.org\u003e\nAcked-by: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "fb01bfdac733f1925561eea52c60072f2fbcdc97",
      "tree": "92e95b0dd90b99f447d14f0598b398cc2eee9d42",
      "parents": [
        "197cd65accc6a274dabcd81f4811ba5d9a4856df"
      ],
      "author": {
        "name": "Akinobu Mita",
        "email": "akinobu.mita@gmail.com",
        "time": "Wed Feb 06 01:40:16 2008 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Wed Feb 06 10:41:21 2008 -0800"
      },
      "message": "ext[234]: remove unused argument for ext[234]_find_goal()\n\nThe argument chain for ext[234]_find_goal() is not used.  This patch removes\nit and fixes comment as well.\n\nCc: \u003clinux-ext4@vger.kernel.org\u003e\nSigned-off-by: Akinobu Mita \u003cakinobu.mita@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": "d71cadd6bc9834710c0b045e3abedd0c56ff1c37",
      "tree": "a9410ecbf21f74993b2d9e5ca9b72d0ee9da04d0",
      "parents": [
        "14f9f7b28e9f4c2102337d45f8d324c004a57481"
      ],
      "author": {
        "name": "Andi Kleen",
        "email": "ak@suse.de",
        "time": "Wed Feb 06 01:40:11 2008 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Wed Feb 06 10:41:20 2008 -0800"
      },
      "message": "BKL-removal: remove incorrect BKL comment in ext2\n\nNo BKL used anywhere, so don\u0027t mention it.\n\nSigned-off-by: Andi Kleen \u003cak@suse.de\u003e\nCc: Theodore Ts\u0027o \u003ctytso@mit.edu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "a686cd898bd999fd026a51e90fb0a3410d258ddb",
      "tree": "3f0a91a70fe1a3addf9e99f3babed9e9baba4b99",
      "parents": [
        "369f2389e7d03022abdd25e298bffb9613cd0e54"
      ],
      "author": {
        "name": "Martin J. Bligh",
        "email": "mbligh@mbligh.org",
        "time": "Tue Oct 16 23:30:46 2007 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Wed Oct 17 08:43:02 2007 -0700"
      },
      "message": "ext2 reservations\n\nVal\u0027s cross-port of the ext3 reservations code into ext2.\n\n[mbligh@mbligh.org: Small type error for printk\n[akpm@linux-foundation.org: fix types, sync with ext3]\n[mbligh@mbligh.org: Bring ext2 reservations code in line with latest ext3]\n[akpm@linux-foundation.org: kill noisy printk]\n[akpm@linux-foundation.org: remember to dirty the gdp\u0027s block]\n[akpm@linux-foundation.org: cross-port the missed 5dea5176e5c32ef9f0d1a41d28427b3bf6881b3a]\n[akpm@linux-foundation.org: cross-port e6022603b9aa7d61d20b392e69edcdbbc1789969]\n[akpm@linux-foundation.org: Port the omitted 08fb306fe63d98eb86e3b16f4cc21816fa47f18e]\n[akpm@linux-foundation.org: Backport the missed 20acaa18d0c002fec180956f87adeb3f11f635a6]\n[akpm@linux-foundation.org: fixes]\n[cmm@us.ibm.com: fix reservation extension]\n[bunk@stusta.de: make ext2_get_blocks() static]\n[hugh@veritas.com: fix hang]\n[hugh@veritas.com: ext2_new_blocks should reset the reservation window size]\n[hugh@veritas.com: ext2 balloc: fix off-by-one against rsv_end]\n[hugh@veritas.com: grp_goal 0 is a genuine goal (unlike -1), so ext2_try_to_allocate_with_rsv should treat it as such]\n[hugh@veritas.com: rbtree usage cleanup]\n[pbadari@us.ibm.com: Fix for ext2 reservation]\n[bunk@kernel.org: remove fs/ext2/balloc.c:reserve_blocks()]\n[hugh@veritas.com: ext2 balloc: use io_error label]\nCc: \"Martin J. Bligh\" \u003cmbligh@mbligh.org\u003e\nCc: Valerie Henson \u003cval_henson@linux.intel.com\u003e\nCc: Mingming Cao \u003ccmm@us.ibm.com\u003e\nCc: Mel Gorman \u003cmel@csn.ul.ie\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Badari Pulavarty \u003cpbadari@us.ibm.com\u003e\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "ef2fb67989d30fea475bb01c5b7ca44adbce5dea",
      "tree": "295e6be829b658f198fd2331c02a0477bf7fd245",
      "parents": [
        "74bf17cffc32511c7c6d70fe7f376b92662e186e"
      ],
      "author": {
        "name": "Eric Sandeen",
        "email": "sandeen@redhat.com",
        "time": "Tue Oct 16 23:26:30 2007 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Wed Oct 17 08:42:49 2007 -0700"
      },
      "message": "remove unused bh in calls to ext234_get_group_desc\n\next[234]_get_group_desc never tests the bh argument, and only sets it if it\nis passed in; it is perfectly happy with a NULL bh argument.  But, many\ncallers send one in and never use it.  May as well call with NULL like\nother callers who don\u0027t use the bh.\n\nSigned-off-by: Eric Sandeen \u003csandeen@redhat.com\u003e\nCc: \u003clinux-ext4@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "03158cd7eb3374843de68421142ca5900df845d9",
      "tree": "5e1bfc1f981651e7f7d7cf30afd15d7bd96b2a57",
      "parents": [
        "b6af1bcd8720cb3062c8c4d4c8ba02bee10ff03f"
      ],
      "author": {
        "name": "Nick Piggin",
        "email": "npiggin@suse.de",
        "time": "Tue Oct 16 01:25:25 2007 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Tue Oct 16 09:42:58 2007 -0700"
      },
      "message": "fs: restore nobh\n\nImplement nobh in new aops.  This is a bit tricky.  FWIW, nobh_truncate is\nnow implemented in a way that does not create blocks in sparse regions,\nwhich is a silly thing for it to have been doing (isn\u0027t it?)\n\next2 survives fsx and fsstress. jfs is converted as well... ext3\nshould be easy to do (but not done yet).\n\n[akpm@linux-foundation.org: coding-style fixes]\nCc: Badari Pulavarty \u003cpbadari@us.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": "f34fb6eccc962e4137b77c4bbe1e9a31d27a30e6",
      "tree": "58fd363d892ee2d341a17e52a297632a10219af9",
      "parents": [
        "6272b5a5868f3d5fbf9815f9984891ced343dabc"
      ],
      "author": {
        "name": "Nick Piggin",
        "email": "npiggin@suse.de",
        "time": "Tue Oct 16 01:25:04 2007 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Tue Oct 16 09:42:55 2007 -0700"
      },
      "message": "ext2: convert to new aops\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "4f99ed67cc1cf5302ea18aa042d75641b61a0a1b",
      "tree": "abf64c561c22b1aa1ba03f2dfb0bdef4d156ca8a",
      "parents": [
        "28ec039c21839914389975b896160a815ffd8b83"
      ],
      "author": {
        "name": "Jan Kara",
        "email": "jack@suse.cz",
        "time": "Tue May 08 00:31:04 2007 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Tue May 08 11:15:13 2007 -0700"
      },
      "message": "ext3: copy i_flags to inode flags on write\n\nPropagate flags such as S_APPEND, S_IMMUTABLE, etc.  from i_flags into\next2-specific i_flags.  Hence, when someone sets these flags via a different\ninterface than ioctl, they are stored correctly.\n\nSigned-off-by: Jan Kara \u003cjack@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "4d7bf11d649c72621ca31b8ea12b9c94af380e63",
      "tree": "c4a3c11cf6d13210ed344de0ae091d3f7523c689",
      "parents": [
        "8948e11f450e6189a79e47d6051c3d5a0b98e3f3"
      ],
      "author": {
        "name": "Markus Rechberger",
        "email": "Markus.Rechberger@amd.com",
        "time": "Tue May 08 00:23:39 2007 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Tue May 08 11:14:58 2007 -0700"
      },
      "message": "ext2/3/4: fix file date underflow on ext2 3 filesystems on 64 bit systems\n\nTaken from http://bugzilla.kernel.org/show_bug.cgi?id\u003d5079\n\nsigned long ranges from -2.147.483.648 to 2.147.483.647 on x86 32bit\n\n10000011110110100100111110111101 .. -2,082,844,739\n10000011110110100100111110111101 ..  2,212,122,557 \u003c- this currently gets\nstored on the disk but when converting it to a 64bit signed long value it loses\nits sign and becomes positive.\n\nCc: Andreas Dilger \u003cadilger@dilger.ca\u003e\nCc: \u003clinux-ext4@vger.kernel.org\u003e\n\nAndreas says:\n\nThis patch is now treating timestamps with the high bit set as negative\ntimes (before Jan 1, 1970).  This means we lose 1/2 of the possible range\nof timestamps (lopping off 68 years before unix timestamp overflow -\nnow only 30 years away :-) to handle the extremely rare case of setting\ntimestamps into the distant past.\n\nIf we are only interested in fixing the underflow case, we could just\nlimit the values to 0 instead of storing negative values.  At worst this\nwill skew the timestamp by a few hours for timezones in the far east\n(files would still show Jan 1, 1970 in \"ls -l\" output).\n\nThat said, it seems 32-bit systems (mine at least) allow files to be set\ninto the past (01/01/1907 works fine) so it seems this patch is bringing\nthe x86_64 behaviour into sync with other kernels.\n\nOn the plus side, we have a patch that is ready to add nanosecond timestamps\nto ext3 and as an added bonus adds 2 high bits to the on-disk timestamp so\nthis extends the maximum date to 2242.\n\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "ba52de123d454b57369f291348266d86f4b35070",
      "tree": "3973f3f3c853b5857b6b64a027cadd4fe954e3b9",
      "parents": [
        "577c4eb09d1034d0739e3135fd2cff50588024be"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Wed Sep 27 01:50:49 2006 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Wed Sep 27 08:26:18 2006 -0700"
      },
      "message": "[PATCH] inode-diet: Eliminate i_blksize from the inode structure\n\nThis eliminates the i_blksize field from struct inode.  Filesystems that want\nto provide a per-inode st_blksize can do so by providing their own getattr\nroutine instead of using the generic_fillattr() function.\n\nNote that some filesystems were providing pretty much random (and incorrect)\nvalues for i_blksize.\n\n[bunk@stusta.de: cleanup]\n[akpm@osdl.org: generic_fillattr() fix]\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "f5e54d6e53a20cef45af7499e86164f0e0d16bb2",
      "tree": "cb92acbb89b84796261bf5563182261ec5654127",
      "parents": [
        "a052b68b1e7a31f1e6a721290035e9deb0f6fed9"
      ],
      "author": {
        "name": "Christoph Hellwig",
        "email": "hch@lst.de",
        "time": "Wed Jun 28 04:26:44 2006 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Wed Jun 28 14:59:04 2006 -0700"
      },
      "message": "[PATCH] mark address_space_operations const\n\nSame as with already do with the file operations: keep them in .rodata and\nprevents people from doing runtime patching.\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nCc: Steven French \u003csfrench@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "1d8fa7a2b9a39d18727acc5c468e870df606c852",
      "tree": "41537fe9ea5478f3243e3301184dc13980f8201f",
      "parents": [
        "fa30bd058b746c0e2318a77ff8b4977faa924c2c"
      ],
      "author": {
        "name": "Badari Pulavarty",
        "email": "pbadari@us.ibm.com",
        "time": "Sun Mar 26 01:38:02 2006 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Sun Mar 26 08:57:01 2006 -0800"
      },
      "message": "[PATCH] remove -\u003eget_blocks() support\n\nNow that get_block() can handle mapping multiple disk blocks, no need to have\n-\u003eget_blocks().  This patch removes fs specific -\u003eget_blocks() added for DIO\nand makes it users use get_block() instead.\n\nSigned-off-by: Badari Pulavarty \u003cpbadari@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "e965f9630c651fa4249039fd4b80c9392d07a856",
      "tree": "1353dd536d0ee549c30e462086624c21788ee9d2",
      "parents": [
        "7e2ab150d1b3b286a4c864c60a549b2601777b63"
      ],
      "author": {
        "name": "Christoph Lameter",
        "email": "clameter@sgi.com",
        "time": "Wed Feb 01 03:05:41 2006 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Wed Feb 01 08:53:17 2006 -0800"
      },
      "message": "[PATCH] Direct Migration V9: Avoid writeback / page_migrate() method\n\nMigrate a page with buffers without requiring writeback\n\nThis introduces a new address space operation migratepage() that may be used\nby a filesystem to implement its own version of page migration.\n\nA version is provided that migrates buffers attached to pages.  Some\nfilesystems (ext2, ext3, xfs) are modified to utilize this feature.\n\nThe swapper address space operation are modified so that a regular\nmigrate_page() will occur for anonymous pages without writeback (migrate_pages\nforces every anonymous page to have a swap entry).\n\nSigned-off-by: Mike Kravetz \u003ckravetz@us.ibm.com\u003e\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": "2973dfdb877c17b36c27ba66d71028ff1eb2f32e",
      "tree": "9734599068f3fcf7cd33f948235588f7a275d193",
      "parents": [
        "7f04c26d715a2467a49a2384268de8f70f787b51"
      ],
      "author": {
        "name": "Glauber de Oliveira Costa",
        "email": "glommer@br.ibm.com",
        "time": "Sun Oct 30 15:03:05 2005 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Sun Oct 30 17:37:26 2005 -0800"
      },
      "message": "[PATCH] Test for sb_getblk return value\n\nThis patch adds tests for the return value of sb_getblk() in the ext2/3\nfilesystems.  In fs/buffer.c it is stated that the getblk() function never\nfails.  However, it does can return NULL in some situations due to I/O\nerrors, which may lead us to NULL pointer dereferences\n\nSigned-off-by: Glauber de Oliveira Costa \u003cglommer@br.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "fef266580e5cf897a1b63528fc6b1185e2d6bb87",
      "tree": "a432a35914b8a74f0c8c73ca57257c7e609365d3",
      "parents": [
        "e85b565233236a2a833adea73fb2f0e0f8fa2a61"
      ],
      "author": {
        "name": "Mark Fasheh",
        "email": "mark.fasheh@oracle.com",
        "time": "Fri Sep 09 13:01:31 2005 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Fri Sep 09 13:57:27 2005 -0700"
      },
      "message": "[PATCH] update filesystems for new delete_inode behavior\n\nUpdate the file systems in fs/ implementing a delete_inode() callback to\ncall truncate_inode_pages().  One implementation note: In developing this\npatch I put the calls to truncate_inode_pages() at the very top of those\nfilesystems delete_inode() callbacks in order to retain the previous\nbehavior.  I\u0027m guessing that some of those could probably be optimized.\n\nSigned-off-by: Mark Fasheh \u003cmark.fasheh@oracle.com\u003e\nAcked-by: Christoph Hellwig \u003chch@infradead.org\u003e\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": "6d79125bba55ee82701f1c7d4ebbc1aa20ecbe4e",
      "tree": "fbd7f82fea19fd89e09312fe89919774b94a6efe",
      "parents": [
        "ceffc078528befc008c6f2c2c4decda79eabd534"
      ],
      "author": {
        "name": "Carsten Otte",
        "email": "cotte@de.ibm.com",
        "time": "Thu Jun 23 22:05:26 2005 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@ppc970.osdl.org",
        "time": "Fri Jun 24 00:06:41 2005 -0700"
      },
      "message": "[PATCH] xip: ext2: execute in place\n\nThese are the ext2 related parts.  Ext2 now uses the xip_* file operations\nalong with the get_xip_page aop when mounted with -o xip.\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": "e072c6f2af57fb8ad9e0f29bfff3f79edf7bdd55",
      "tree": "9d72262a63754b39df4ebfed5bc74855f0408c3a",
      "parents": [
        "614a7d6a76b7fb37bb399047eb3ccf86cafbf60d"
      ],
      "author": {
        "name": "Bernard Blackham",
        "email": "bernard@blackham.com.au",
        "time": "Sat Apr 16 15:25:45 2005 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@ppc970.osdl.org",
        "time": "Sat Apr 16 15:25:45 2005 -0700"
      },
      "message": "[PATCH] ext2 corruption - regression between 2.6.9 and 2.6.10\n\nWhilst trying to stress test a Promise SX8 card, we stumbled across\nsome nasty filesystem corruption in ext2. Our tests involved\ncreating an ext2 partition, mounting, running several concurrent\nfsx\u0027s over it, umounting, and fsck\u0027ing, all scripted[1]. The fsck\nwould always return with errors.\n\nThis regression was traced back to a change between 2.6.9 and\n2.6.10, which moves the functionality of ext2_put_inode into\next2_clear_inode.  The attached patch reverses this change, and\neliminated the source of corruption.\n\nMingming Cao \u003ccmm@us.ibm.com\u003e said:\n\nI think his patch for ext2 is correct.  The corruption on ext3 is not the same\nissue he saw on ext2.  I believe that\u0027s the race between discard reservation\nand reservation in-use that we already fixed it in 2.6.12- rc1.\n\nFor the problem related to ext2, at the time when we design reservation for\next3, we decide we only need to discard the reservation at the last file\nclose, so we have ext3_discard_reservation on iput_final- \u003eext3_clear_inode.\n\nThe ext2 handle discard preallocation differently at that time, it discard the\npreallocation at each iput(), not in input_final(), so we think it\u0027s\nunnecessary to thrash it so frequently, and the right thing to do, as we did\nfor ext3 reservation, discard preallocation on last iput().  So we moved the\next2_discard_preallocation from ext2_put_inode(0 to ext2_clear_inode.\n\nSince ext2 preallocation is doing pre-allocation on disk, so it is possible\nthat at the unmount time, someone is still hold the reference of the inode, so\nthe preallocation for a file is not discard yet, so we still mark those blocks\nallocated on disk, while they are not actually in the inode\u0027s block map, so\nfsck will catch/fix that error later.\n\nThis is not a issue for ext3, as ext3 reservation(pre-allocation) is done in\nmemory.\n\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"
    }
  ]
}