)]}'
{
  "log": [
    {
      "commit": "e4ce30f3779c2ddaa7dfaa4042209e5dbacbada5",
      "tree": "cc64c1dcd16b5dbf71ebc8338b339e6fb04abaee",
      "parents": [
        "b899ebeb05da4287ce845976727e3e83dadd25d5",
        "14ece1028b3ed53ffec1b1213ffc6acaf79ad77c"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu May 27 10:26:37 2010 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu May 27 10:26:37 2010 -0700"
      },
      "message": "Merge branch \u0027for_linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4\n\n* \u0027for_linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (40 commits)\n  ext4: Make fsync sync new parent directories in no-journal mode\n  ext4: Drop whitespace at end of lines\n  ext4: Fix compat EXT4_IOC_ADD_GROUP\n  ext4: Conditionally define compat ioctl numbers\n  tracing: Convert more ext4 events to DEFINE_EVENT\n  ext4: Add new tracepoints to track mballoc\u0027s buddy bitmap loads\n  ext4: Add a missing trace hook\n  ext4: restart ext4_ext_remove_space() after transaction restart\n  ext4: Clear the EXT4_EOFBLOCKS_FL flag only when warranted\n  ext4: Avoid crashing on NULL ptr dereference on a filesystem error\n  ext4: Use bitops to read/modify i_flags in struct ext4_inode_info\n  ext4: Convert calls of ext4_error() to EXT4_ERROR_INODE()\n  ext4: Convert callers of ext4_get_blocks() to use ext4_map_blocks()\n  ext4: Add new abstraction ext4_map_blocks() underneath ext4_get_blocks()\n  ext4: Use our own write_cache_pages()\n  ext4: Show journal_checksum option\n  ext4: Fix for ext4_mb_collect_stats()\n  ext4: check for a good block group before loading buddy pages\n  ext4: Prevent creation of files larger than RLIMIT_FSIZE using fallocate\n  ext4: Remove extraneous newlines in ext4_msg() calls\n  ...\n\nFixed up trivial conflict in fs/ext4/fsync.c\n"
    },
    {
      "commit": "b10b8520903204c9a1e4ef4a6827c2f1569aae9b",
      "tree": "49b78527451cf32cfc16be194261308b8c27a6be",
      "parents": [
        "aab99c2c26f74d90f615fcca534172dfc1c8bec2"
      ],
      "author": {
        "name": "Dmitry Monakhov",
        "email": "dmonakhov@openvz.org",
        "time": "Thu Mar 04 17:31:51 2010 +0300"
      },
      "committer": {
        "name": "Al Viro",
        "email": "viro@zeniv.linux.org.uk",
        "time": "Fri May 21 18:31:24 2010 -0400"
      },
      "message": "ext4: replace inode uid,gid,mode init with helper\n\nSigned-off-by: Dmitry Monakhov \u003cdmonakhov@openvz.org\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n"
    },
    {
      "commit": "12e9b892002d9af057655d35b44db8ee9243b0dc",
      "tree": "c5831b4bcf98eebdd39158d08dab97c198f5c683",
      "parents": [
        "24676da469f50f433baa347845639662c561d1f6"
      ],
      "author": {
        "name": "Dmitry Monakhov",
        "email": "dmonakhov@openvz.org",
        "time": "Sun May 16 22:00:00 2010 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sun May 16 22:00:00 2010 -0400"
      },
      "message": "ext4: Use bitops to read/modify i_flags in struct ext4_inode_info\n\nAt several places we modify EXT4_I(inode)-\u003ei_flags without holding\ni_mutex (ext4_do_update_inode, ...). These modifications are racy and\nwe can lose updates to i_flags. So convert handling of i_flags to use\nbitops which are atomic.\n\nhttps://bugzilla.kernel.org/show_bug.cgi?id\u003d15792\n\nSigned-off-by: Dmitry Monakhov \u003cdmonakhov@openvz.org\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "d17413c08cd2b1dd2bf2cfdbb0f7b736b2b2b15c",
      "tree": "af5c4e2e0c7e7d188dd5b8fac61d39ee7984f3c6",
      "parents": [
        "21ca087a3891efab4d45488db8febee474d26c68"
      ],
      "author": {
        "name": "Dmitry Monakhov",
        "email": "dmonakhov@openvz.org",
        "time": "Sun May 16 07:00:00 2010 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sun May 16 07:00:00 2010 -0400"
      },
      "message": "ext4: clean up inode bitmaps manipulation in ext4_free_inode\n\n- Reorganize locking scheme to batch two atomic operation in to one.\n  This also allow us to state what healthy group must obey following rule\n  ext4_free_inodes_count(sb, gdp) \u003d\u003d ext4_count_free(inode_bitmap, NUM);\n- Fix possible undefined pointer dereference.\n- Even if group descriptor stats aren\u0027t accessible we have to update\n  inode bitmaps.\n- Move non-group members update out of group_lock.\n\nSigned-off-by: Dmitry Monakhov \u003cdmonakhov@openvz.org\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "c4caae25187ff3f5e837c6f04eb1acc2723c72d3",
      "tree": "530f3dac932045e288366e260e446e96dd7f2fb7",
      "parents": [
        "ba69f9ab7df844125898104e854e063b47c26637"
      ],
      "author": {
        "name": "Eric Sandeen",
        "email": "sandeen@redhat.com",
        "time": "Tue Mar 23 21:32:00 2010 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Tue Mar 23 21:32:00 2010 -0400"
      },
      "message": "ext4: Fixed inode allocator to correctly track a flex_bg\u0027s used_dirs\n\nWhen used_dirs was introduced for the flex_groups struct, it looks\nlike the accounting was not put into place properly, in some places\nmanipulating free_inodes rather than used_dirs.\n\nSigned-off-by: Eric Sandeen \u003csandeen@redhat.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "e213e26ab3988c516c06eba4dcd030ac052f6dc9",
      "tree": "6e26fbdbb842b387697d73daf6e70cf718269a77",
      "parents": [
        "c812a51d11bbe983f4c24e32b59b265705ddd3c2",
        "efd8f0e6f6c1faa041f228d7113bd3a9db802d49"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Fri Mar 05 13:20:53 2010 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Fri Mar 05 13:20:53 2010 -0800"
      },
      "message": "Merge branch \u0027for_linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6\n\n* \u0027for_linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6: (33 commits)\n  quota: stop using QUOTA_OK / NO_QUOTA\n  dquot: cleanup dquot initialize routine\n  dquot: move dquot initialization responsibility into the filesystem\n  dquot: cleanup dquot drop routine\n  dquot: move dquot drop responsibility into the filesystem\n  dquot: cleanup dquot transfer routine\n  dquot: move dquot transfer responsibility into the filesystem\n  dquot: cleanup inode allocation / freeing routines\n  dquot: cleanup space allocation / freeing routines\n  ext3: add writepage sanity checks\n  ext3: Truncate allocated blocks if direct IO write fails to update i_size\n  quota: Properly invalidate caches even for filesystems with blocksize \u003c pagesize\n  quota: generalize quota transfer interface\n  quota: sb_quota state flags cleanup\n  jbd: Delay discarding buffers in journal_unmap_buffer\n  ext3: quota_write cross block boundary behaviour\n  quota: drop permission checks from xfs_fs_set_xstate/xfs_fs_set_xquota\n  quota: split out compat_sys_quotactl support from quota.c\n  quota: split out netlink notification support from quota.c\n  quota: remove invalid optimization from quota_sync_all\n  ...\n\nFixed trivial conflicts in fs/namei.c and fs/ufs/inode.c\n"
    },
    {
      "commit": "871a293155a24554e153538d36e3a80fa169aefb",
      "tree": "7e38f5a2f9e87f63cbc4bc1077a4bb49dde441b0",
      "parents": [
        "907f4554e2521cb28b0009d17167760650a9561c"
      ],
      "author": {
        "name": "Christoph Hellwig",
        "email": "hch@infradead.org",
        "time": "Wed Mar 03 09:05:07 2010 -0500"
      },
      "committer": {
        "name": "Jan Kara",
        "email": "jack@suse.cz",
        "time": "Fri Mar 05 00:20:30 2010 +0100"
      },
      "message": "dquot: cleanup dquot initialize routine\n\nGet rid of the initialize dquot operation - it is now always called from\nthe filesystem and if a filesystem really needs it\u0027s own (which none\ncurrently does) it can just call into it\u0027s own routine directly.\n\nRename the now static low-level dquot_initialize helper to __dquot_initialize\nand vfs_dq_init to dquot_initialize to have a consistent namespace.\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Jan Kara \u003cjack@suse.cz\u003e\n"
    },
    {
      "commit": "9f7547580263d4a55efe06ce5cfd567f568be6e8",
      "tree": "6f926a075eeed815d0a6680c06f235da0e5ea6d9",
      "parents": [
        "257ba15cedf1288f0c96118d7e63947231d27278"
      ],
      "author": {
        "name": "Christoph Hellwig",
        "email": "hch@infradead.org",
        "time": "Wed Mar 03 09:05:05 2010 -0500"
      },
      "committer": {
        "name": "Jan Kara",
        "email": "jack@suse.cz",
        "time": "Fri Mar 05 00:20:30 2010 +0100"
      },
      "message": "dquot: cleanup dquot drop routine\n\nGet rid of the drop dquot operation - it is now always called from\nthe filesystem and if a filesystem really needs it\u0027s own (which none\ncurrently does) it can just call into it\u0027s own routine directly.\n\nRename the now static low-level dquot_drop helper to __dquot_drop\nand vfs_dq_drop to dquot_drop to have a consistent namespace.\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Jan Kara \u003cjack@suse.cz\u003e\n"
    },
    {
      "commit": "63936ddaa16b9486e2d426ed7b09f559a5c60f87",
      "tree": "4cb1c4581799e10c26dd71d1a7d420de3c2cfd05",
      "parents": [
        "5dd4056db84387975140ff2568eaa0406f07985e"
      ],
      "author": {
        "name": "Christoph Hellwig",
        "email": "hch@infradead.org",
        "time": "Wed Mar 03 09:05:01 2010 -0500"
      },
      "committer": {
        "name": "Jan Kara",
        "email": "jack@suse.cz",
        "time": "Fri Mar 05 00:20:28 2010 +0100"
      },
      "message": "dquot: cleanup inode allocation / freeing routines\n\nGet rid of the alloc_inode and free_inode dquot operations - they are\nalways called from the filesystem and if a filesystem really needs\ntheir own (which none currently does) it can just call into it\u0027s\nown routine directly.\n\nAlso get rid of the vfs_dq_alloc/vfs_dq_free wrappers and always\ncall the lowlevel dquot_alloc_inode / dqout_free_inode routines\ndirectly, which now lose the number argument which is always 1.\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Jan Kara \u003cjack@suse.cz\u003e\n"
    },
    {
      "commit": "73b50c1c92666d326b5fa2c945d46509f2f6d91f",
      "tree": "87e2cc6fed3259a83364ede33d8f4d68173f8175",
      "parents": [
        "ba869023eac8354b17acdcff82b851ea8e7b1809"
      ],
      "author": {
        "name": "Curt Wohlgemuth",
        "email": "curtw@google.com",
        "time": "Tue Feb 16 15:06:29 2010 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Tue Feb 16 15:06:29 2010 -0500"
      },
      "message": "ext4: Fix BUG_ON at fs/buffer.c:652 in no journal mode\n\nCalls to ext4_handle_dirty_metadata should only pass in an inode\npointer for inode-specific metadata, and not for shared metadata\nblocks such as inode table blocks, block group descriptors, the\nsuperblock, etc.\n\nThe BUG_ON can get tripped when updating a special device (such as a\nblock device) that is opened (so that i_mapping is set in\nfs/block_dev.c) and the file system is mounted in no journal mode.\n\nAddresses-Google-Bug: #2404870\n\nSigned-off-by: Curt Wohlgemuth \u003ccurtw@google.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "12062dddda450976b129dcb1bacd91acaf4d8030",
      "tree": "e64590b1147639cd3629f8a977b269410cd6bd13",
      "parents": [
        "f710b4b96ba292dfed2153afc47e9063b0abfd89"
      ],
      "author": {
        "name": "Eric Sandeen",
        "email": "sandeen@redhat.com",
        "time": "Mon Feb 15 14:19:27 2010 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Feb 15 14:19:27 2010 -0500"
      },
      "message": "ext4: move __func__ into a macro for ext4_warning, ext4_error\n\nJust a pet peeve of mine; we had a mishash of calls with either __func__\nor \"function_name\" and the latter tends to get out of sync.\n\nI think it\u0027s easier to just hide the __func__ in a macro, and it\u0027ll\nbe consistent from then on.\n\nSigned-off-by: Eric Sandeen \u003csandeen@redhat.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "19f5fb7ad679bb361222c7916086435020c37cce",
      "tree": "9e301163075c4faaf340cf50afd51855c76acd8c",
      "parents": [
        "d2eecb03936878ec574ade5532fa83df7d75dde7"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sun Jan 24 14:34:07 2010 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sun Jan 24 14:34:07 2010 -0500"
      },
      "message": "ext4: Use bitops to read/modify EXT4_I(inode)-\u003ei_state\n\nAt several places we modify EXT4_I(inode)-\u003ei_state without holding\ni_mutex (ext4_release_file, ext4_bmap, ext4_journalled_writepage,\next4_do_update_inode, ...). These modifications are racy and we can\nlose updates to i_state. So convert handling of i_state to use bitops\nwhich are atomic.\n\nCc: Jan Kara \u003cjack@suse.cz\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "785b4b3a5a992eeb8b495a89b6f690b383010aba",
      "tree": "2b67b107c268529de56f09b0ef86691899de6b96",
      "parents": [
        "1c718505171b06dbb60eafcb3fddba877dae5f7b"
      ],
      "author": {
        "name": "Peng Tao",
        "email": "bergwolf@gmail.com",
        "time": "Mon Jul 27 21:44:40 2009 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Jul 27 21:44:40 2009 -0400"
      },
      "message": "ext4: fix build warning when EXT4FS_DEBUG is on\n\nWhen compiling with EXT4FS_DEBUG on, gcc will complain with following warnings:\n\nlinux-2.6/fs/ext4/ialloc.c: In function ‘ext4_count_free_inodes’:\nlinux-2.6/fs/ext4/ialloc.c:1192: warning: format ‘%lu’ expects type\n‘long unsigned int’, but argument 2 has type ‘ext4_group_t’\n\nSo add a type cast to suppress it. \n\nSigned-off-by: Peng Tao \u003cbergwolf@gmail.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "e6462869e4fd88be5141a356ee0c28d8067340cc",
      "tree": "f22c68d85bc9192944d81dd0cec4b8c7f6827b9a",
      "parents": [
        "5adfee9c17314c1411095c23191c3cb0c2d25f9f"
      ],
      "author": {
        "name": "Johann Lombardi",
        "email": "johann@Sun.COM",
        "time": "Sun Jul 05 23:45:11 2009 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sun Jul 05 23:45:11 2009 -0400"
      },
      "message": "ext4: Fix goal inum check in the inode allocator\n\nThe goal inode is specificed by inode number which belongs\nto [1; s_inodes_count].\n\nSigned-off-by: Johann Lombardi \u003cjohann@sun.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "11013911daea4820147ae6d7094dd7c6894e8651",
      "tree": "f8e9f9d2058e0dfc826d4df3d88a7eb18a56b3f3",
      "parents": [
        "f157a4aa98a18bd3817a72bea90d48494e2586e7"
      ],
      "author": {
        "name": "Andreas Dilger",
        "email": "adilger@sun.com",
        "time": "Sat Jun 13 11:45:35 2009 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sat Jun 13 11:45:35 2009 -0400"
      },
      "message": "ext4: teach the inode allocator to use a goal inode number\n\nEnhance the inode allocator to take a goal inode number as a\nparemeter; if it is specified, it takes precedence over Orlov or\nparent directory inode allocation algorithms.\n\nThe extents migration function uses the goal inode number so that the\nextent trees allocated the migration function use the correct flex_bg.\nIn the future, the goal inode functionality will also be used to\nallocate an adjacent inode for the extended attributes.\n\nAlso, for testing purposes the goal inode number can be specified via\n/sys/fs/{dev}/inode_goal.  This can be useful for testing inode\nallocation beyond 2^32 blocks on very large filesystems.\n\nSigned-off-by: Andreas Dilger \u003cadilger@sun.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "f157a4aa98a18bd3817a72bea90d48494e2586e7",
      "tree": "105547639a67296b4ea7acdc35c9e65ee2a85fd8",
      "parents": [
        "8a8a2050c844d9de224ff591e91bda3f77bd6eda"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sat Jun 13 11:09:42 2009 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sat Jun 13 11:09:42 2009 -0400"
      },
      "message": "ext4: Use a hash of the topdir directory name for the Orlov parent group\n\nInstead of using a random number to determine the goal parent grop for\nthe Orlov top directories, use a hash of the directory name.  This\nallows for repeatable results when trying to benchmark filesystem\nlayout algorithms.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "9bffad1ed2a003a355ed1b42424a0ae3575275ed",
      "tree": "9016e7b0e04a0e5319680f9e1f89fc1abb13c765",
      "parents": [
        "879c5e6b7cb4c689d08ca9b2e353d8ab3dc425d5"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Wed Jun 17 11:48:11 2009 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Wed Jun 17 11:48:11 2009 -0400"
      },
      "message": "ext4: convert instrumentation from markers to tracepoints\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "88b6edd17c62b7d346d21f4087893ce7d4ef828a",
      "tree": "e6c80d48f184861c965a58bd88fd3a023b65a1c9",
      "parents": [
        "759d427aa5a9d88a81afd11817cdeb40aea85234"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon May 25 11:50:39 2009 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon May 25 11:50:39 2009 -0400"
      },
      "message": "ext4: Clean up calls to ext4_get_group_desc()\n\nIf the caller isn\u0027t planning on modifying the block group descriptors,\nthere\u0027s no need to pass in a pointer to a struct buffer_head.  Nuking\nthis saves a tiny amount of CPU time and stack space usage.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "955ce5f5be67dfe0d1d096b543af33fe8a1ce3dd",
      "tree": "68b0bdbef1594a3e43c1ef28ae8e096b40a06ae4",
      "parents": [
        "eefd7f03b86b8a319890e7fac5a6fcc7f8694b76"
      ],
      "author": {
        "name": "Aneesh Kumar K.V",
        "email": "aneesh.kumar@linux.vnet.ibm.com",
        "time": "Sat May 02 20:35:09 2009 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sat May 02 20:35:09 2009 -0400"
      },
      "message": "ext4: Convert ext4_lock_group to use sb_bgl_lock\n\nWe have sb_bgl_lock() and ext4_group_info.bb_state\nbit spinlock to protech group information. The later is only\nused within mballoc code. Consolidate them to use sb_bgl_lock().\nThis makes the mballoc.c code much simpler and also avoid\nconfusion with two locks protecting same info.\n\nSigned-off-by: Aneesh Kumar K.V \u003caneesh.kumar@linux.vnet.ibm.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "bb23c20a851a5038b255a3c0d0aa56093c1da3f8",
      "tree": "257211bf2bf5ffd53fe24b0528928ca4d3f2ecba",
      "parents": [
        "596397b77c895d0fa3674f579c94ad5ea88ef01d"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Fri May 01 19:44:44 2009 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Fri May 01 19:44:44 2009 -0400"
      },
      "message": "ext4: Move fs/ext4/group.h into ext4.h\n\nMove the function prototypes in group.h into ext4.h so they are all\ndefined in one place.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "8df9675f8b498d0bfa1f0b5b06f56bf1ff366dd5",
      "tree": "38fd56a82049f50b4d774af47b9d39f116071755",
      "parents": [
        "9ca92389c5312a51e819c15c762f0abdc7f3129b"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Fri May 01 08:50:38 2009 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Fri May 01 08:50:38 2009 -0400"
      },
      "message": "ext4: Avoid races caused by on-line resizing and SMP memory reordering\n\nExt4\u0027s on-line resizing adds a new block group and then, only at the\nlast step adjusts s_groups_count.  However, it\u0027s possible on SMP\nsystems that another CPU could see the updated the s_group_count and\nnot see the newly initialized data structures for the just-added block\ngroup.  For this reason, it\u0027s important to insert a SMP read barrier\nafter reading s_groups_count and before reading any (for example) the\nnew block group descriptors allowed by the increased value of\ns_groups_count.\n\nUnfortunately, we rather blatently violate this locking protocol\ndocumented in fs/ext4/resize.c.  Fortunately, (1) on-line resizes\nhappen relatively rarely, and (2) it seems rare that the filesystem\ncode will immediately try to use just-added block group before any\nmemory ordering issues resolve themselves.  So apparently problems\nhere are relatively hard to hit, since ext3 has been vulnerable to the\nsame issue for years with no one apparently complaining.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "b5451f7b2694b04d9f912f6cf09db1729f291996",
      "tree": "a1221f12730bc54357fc7600de2b5fbcce97cac3",
      "parents": [
        "e84a26ce178345498a7eca0590852bcc36f1092f"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Wed Apr 22 21:00:36 2009 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Wed Apr 22 21:00:36 2009 -0400"
      },
      "message": "ext4: Fix potential inode allocation soft lockup in Orlov allocator\n\nIf the Orlov allocator is having trouble finding an appropriate block\ngroup, the fallback code could loop forever, causing a soft lockup\nwarning in find_group_orlov():\n\nBUG: soft lockup - CPU#0 stuck for 61s! [cp:11728]\n     ...\nPid: 11728, comm: cp Not tainted (2.6.30-rc1-dirty #77) Lenovo          \nEIP: 0060:[\u003cc021650e\u003e] EFLAGS: 00000246 CPU: 0\nEIP is at ext4_get_group_desc+0x54/0x9d\n    ...\nCall Trace:\n [\u003cc0218021\u003e] find_group_orlov+0x2ee/0x334\n [\u003cc0120a5f\u003e] ? sched_clock+0x8/0xb\n [\u003cc02188e3\u003e] ext4_new_inode+0x2cf/0xb1a\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "6b82f3cb2d480b7714eb0ff61aee99c22160389e",
      "tree": "31eea4876e8ceb93f8641082128b4a8ccd944e0b",
      "parents": [
        "b0cbc861a3c05e634520b049b5cc27ad6febb51f"
      ],
      "author": {
        "name": "Chuck Ebbert",
        "email": "cebbert@redhat.com",
        "time": "Tue Apr 14 07:37:40 2009 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Tue Apr 14 07:37:40 2009 -0400"
      },
      "message": "ext4: really print the find_group_flex fallback warning only once\n\nMissing braces caused the warning to print more than once.\n\nSigned-Off-By: Chuck Ebbert \u003ccebbert@redhat.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "7d39db14a42cbd719c7515b9da8f85a2eb6a0633",
      "tree": "5c93b9f76c9895183d1e973ed296cd9b7a1d9a0e",
      "parents": [
        "9f24e4208f7ee2748f157368b63287dc903fcf60"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Wed Mar 04 19:31:53 2009 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Wed Mar 04 19:31:53 2009 -0500"
      },
      "message": "ext4: Use struct flex_groups to calculate get_orlov_stats()\n\nInstead of looping over all of the block groups in a flex group\nsumming their summary statistics, start tracking used_dirs in struct\nflex_groups, and use struct flex_groups instead.  This should save a\nbit of CPU for mkdir-heavy workloads.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "9f24e4208f7ee2748f157368b63287dc903fcf60",
      "tree": "255989fe69ebfb2b031dc7cf6dbe975df67c711a",
      "parents": [
        "b713a5ec55bf73c833f9883cdd761b20ee61a1ab"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Wed Mar 04 19:09:10 2009 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Wed Mar 04 19:09:10 2009 -0500"
      },
      "message": "ext4: Use atomic_t\u0027s in struct flex_groups\n\nReduce pressure on the sb_bgl_lock family of locks by using atomic_t\u0027s\nto track the number of free blocks and inodes in each flex_group.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n\n\n"
    },
    {
      "commit": "a4912123b688e057084e6557cef8924f7ae5bbde",
      "tree": "34e88705d6617b52caa0f87692b480119a9c9e2e",
      "parents": [
        "2dc6b0d48ca0599837df21b14bb8393d0804af57"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Thu Mar 12 12:18:34 2009 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Thu Mar 12 12:18:34 2009 -0400"
      },
      "message": "ext4: New inode/block allocation algorithms for flex_bg filesystems\n\nThe find_group_flex() inode allocator is now only used if the\nfilesystem is mounted using the \"oldalloc\" mount option.  It is\nreplaced with the original Orlov allocator that has been updated for\nflex_bg filesystems (it should behave the same way if flex_bg is\ndisabled).  The inode allocator now functions by taking into account\neach flex_bg group, instead of each block group, when deciding whether\nor not it\u0027s time to allocate a new directory into a fresh flex_bg.\n\nThe block allocator has also been changed so that the first block\ngroup in each flex_bg is preferred for use for storing directory\nblocks.  This keeps directory blocks close together, which is good for\nspeeding up e2fsck since large directories are more likely to look\nlike this:\n\ndebugfs:  stat /home/tytso/Maildir/cur\nInode: 1844562   Type: directory    Mode:  0700   Flags: 0x81000\nGeneration: 1132745781    Version: 0x00000000:0000ad71\nUser: 15806   Group: 15806   Size: 1060864\nFile ACL: 0    Directory ACL: 0\nLinks: 2   Blockcount: 2072\nFragment:  Address: 0    Number: 0    Size: 0\n ctime: 0x499c0ff4:164961f4 -- Wed Feb 18 08:41:08 2009\n atime: 0x499c0ff4:00000000 -- Wed Feb 18 08:41:08 2009\n mtime: 0x49957f51:00000000 -- Fri Feb 13 09:10:25 2009\ncrtime: 0x499c0f57:00d51440 -- Wed Feb 18 08:38:31 2009\nSize of extra inode fields: 28\nBLOCKS:\n(0):7348651, (1-258):7348654-7348911\nTOTAL: 259\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "2dc6b0d48ca0599837df21b14bb8393d0804af57",
      "tree": "b70dd83908f9bcb3cb953e5b7df1837268968c2e",
      "parents": [
        "8fa43a81b97853fc69417bb6054182e78f95cbeb"
      ],
      "author": {
        "name": "Duane Griffin",
        "email": "duaneg@dghda.com",
        "time": "Sun Feb 15 18:09:20 2009 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sun Feb 15 18:09:20 2009 -0500"
      },
      "message": "ext4: tighten restrictions on inode flags\n\nAt the moment there are few restrictions on which flags may be set on\nwhich inodes.  Specifically DIRSYNC may only be set on directories and\nIMMUTABLE and APPEND may not be set on links.  Tighten that to disallow\nTOPDIR being set on non-directories and only NODUMP and NOATIME to be set\non non-regular file, non-directories.\n\nIntroduces a flags masking function which masks flags based on mode and\nuse it during inode creation and when flags are set via the ioctl to\nfacilitate future consistency.\n\nSigned-off-by: Duane Griffin \u003cduaneg@dghda.com\u003e\nAcked-by: Andreas Dilger \u003cadilger@sun.com\u003e\nCc: \u003clinux-ext4@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "8fa43a81b97853fc69417bb6054182e78f95cbeb",
      "tree": "0bcd9550d9f08d825203f8544e6efb75e37bc4eb",
      "parents": [
        "705895b61133ef43d106fe6a6bbdb2eec923867e"
      ],
      "author": {
        "name": "Duane Griffin",
        "email": "duaneg@dghda.com",
        "time": "Sun Feb 15 18:57:26 2009 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sun Feb 15 18:57:26 2009 -0500"
      },
      "message": "ext4: don\u0027t inherit inappropriate inode flags from parent\n\nAt present INDEX and EXTENTS are the only flags that new ext4 inodes do\nNOT inherit from their parent.  In addition prevent the flags DIRTY,\nECOMPR, IMAGIC, TOPDIR, HUGE_FILE and EXT_MIGRATE from being inherited. \nList inheritable flags explicitly to prevent future flags from\naccidentally being inherited.\n\nThis fixes the TOPDIR flag inheritance bug reported at\nhttp://bugzilla.kernel.org/show_bug.cgi?id\u003d9866.\n\nSigned-off-by: Duane Griffin \u003cduaneg@dghda.com\u003e\nAcked-by: Andreas Dilger \u003cadilger@sun.com\u003e\nCc: \u003clinux-ext4@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "a269eb18294d35874c53311acc2cd0b5ef477ce5",
      "tree": "4da256ba45385688bd7f1e8b638ce76f884c8313",
      "parents": [
        "81a052273998f94b098945c4c313e05246956eb2"
      ],
      "author": {
        "name": "Jan Kara",
        "email": "jack@suse.cz",
        "time": "Mon Jan 26 17:04:39 2009 +0100"
      },
      "committer": {
        "name": "Jan Kara",
        "email": "jack@suse.cz",
        "time": "Thu Mar 26 02:18:36 2009 +0100"
      },
      "message": "ext4: Use lowercase names of quota functions\n\nUse lowercase names of quota functions instead of old uppercase ones.\n\nSigned-off-by: Jan Kara \u003cjack@suse.cz\u003e\nAcked-by: Mingming Cao \u003ccmm@us.ibm.com\u003e\nCC: linux-ext4@vger.kernel.org\n"
    },
    {
      "commit": "2842c3b5449f31470b61db716f1926b594fb6156",
      "tree": "d32d76a498621a00d961273a15a6e70b7f9db78d",
      "parents": [
        "395a87bfefbc400011417e9eaae33169f9f036c0"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Thu Mar 12 12:20:01 2009 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Thu Mar 12 12:20:01 2009 -0400"
      },
      "message": "ext4: Print the find_group_flex() warning only once\n\nThis is a short-term warning, and even printk_ratelimit() can result\nin too much noise in system logs.  So only print it once as a warning.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "7ce9d5d1f3c8736511daa413c64985a05b2feee3",
      "tree": "89b30c50d6e09467f43f4f824d04838e9bb33026",
      "parents": [
        "fec6c6fec3e20637bee5d276fb61dd8b49a3f9cc"
      ],
      "author": {
        "name": "Eric Sandeen",
        "email": "sandeen@redhat.com",
        "time": "Wed Mar 04 18:38:18 2009 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Wed Mar 04 18:38:18 2009 -0500"
      },
      "message": "ext4: fix ext4_free_inode() vs. ext4_claim_inode() race\n\nI was seeing fsck errors on inode bitmaps after a 4 thread\ndbench run on a 4 cpu machine:\n\nInode bitmap differences: -50736 -(50752--50753) etc...\n\nI believe that this is because ext4_free_inode() uses atomic\nbitops, and although ext4_new_inode() *used* to also use atomic \nbitops for synchronization, commit \n393418676a7602e1d7d3f6e560159c65c8cbd50e changed this to use\nthe sb_bgl_lock, so that we could also synchronize against\nread_inode_bitmap and initialization of uninit inode tables.\n\nHowever, that change left ext4_free_inode using atomic bitops,\nwhich I think leaves no synchronization between setting \u0026 \nunsetting bits in the inode table.\n\nThe below patch fixes it for me, although I wonder if we\u0027re \ngetting at all heavy-handed with this spinlock...\n\nSigned-off-by: Eric Sandeen \u003csandeen@redhat.com\u003e\nReviewed-by: Aneesh Kumar K.V \u003caneesh.kumar@linux.vnet.ibm.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "05bf9e839d9de4e8a094274a0a2fd07beb47eaf1",
      "tree": "36dba549ded1f7c7b37bd854fb20d55bff89787d",
      "parents": [
        "20f4d6c3a2a23c5d7d9cc7f42fbb943ca7a03d1f"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sat Feb 21 12:13:24 2009 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sat Feb 21 12:13:24 2009 -0500"
      },
      "message": "ext4: Add fallback for find_group_flex\n\nThis is a workaround for find_group_flex() which badly needs to be\nreplaced.  One of its problems (besides ignoring the Orlov algorithm)\nis that it is a bit hyperactive about returning failure under\nsuspicious circumstances.  This can lead to spurious ENOSPC failures\neven when there are inodes still available.\n\nWork around this for now by retrying the search using\nfind_group_other() if find_group_flex() returns -1.  If\nfind_group_other() succeeds when find_group_flex() has failed, log a\nwarning message.\n\nA better block/inode allocator that will fix this problem for real has\nbeen queued up for the next merge window.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "83982b6f47201c4c7767210d24d7d8c99567a0b3",
      "tree": "f1c19b1c6b5a34dd0c5de7519b78414b7a9267ee",
      "parents": [
        "4d783b093cd4f3e2738527365979cbd1c5101065"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Tue Jan 06 14:53:16 2009 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Tue Jan 06 14:53:16 2009 -0500"
      },
      "message": "ext4: Remove \"extents\" mount option\n\nThis mount option is largely superfluous, and in fact the way it was\nimplemented was buggy; if a filesystem which did not have the extents\nfeature flag was mounted -o extents, the filesystem would attempt to\ncreate and use extents-based file even though the extents feature flag\nwas not eabled.  The simplest thing to do is to nuke the mount option\nentirely.  It\u0027s not all that useful to force the non-creation of new\nextent-based files if the filesystem can support it.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "ba80b1019aa722b24506db1ee755e0bb2f513022",
      "tree": "0c9a7dfd3af0f5991f3eaaeb65d735b11e9cf777",
      "parents": [
        "c31910672376dfb8d020e32afa7249763bcd924a"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sat Jan 03 20:03:21 2009 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sat Jan 03 20:03:21 2009 -0500"
      },
      "message": "ext4: Add markers for better debuggability\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "648f5879f5892dddd3ba71cd0d285599f40f2512",
      "tree": "dee22aa9be9e47c9a9a25ce38481079aaf8858c8",
      "parents": [
        "2ccb5fb9f113dae969d1ae9b6c10e80fa34f8cd3"
      ],
      "author": {
        "name": "Aneesh Kumar K.V",
        "email": "aneesh.kumar@linux.vnet.ibm.com",
        "time": "Mon Jan 05 21:46:04 2009 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Jan 05 21:46:04 2009 -0500"
      },
      "message": "ext4: mark the blocks/inode bitmap beyond end of group as used\n\nWe need to mark the block/inode bitmap beyond the end of the group\nwith \u00271\u0027.\n\nSigned-off-by: Aneesh Kumar K.V \u003caneesh.kumar@linux.vnet.ibm.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\nCc: stable@kernel.org\n"
    },
    {
      "commit": "2ccb5fb9f113dae969d1ae9b6c10e80fa34f8cd3",
      "tree": "d9dc5bca94748d4173a7783e963d20b5a75f8db8",
      "parents": [
        "393418676a7602e1d7d3f6e560159c65c8cbd50e"
      ],
      "author": {
        "name": "Aneesh Kumar K.V",
        "email": "aneesh.kumar@linux.vnet.ibm.com",
        "time": "Mon Jan 05 21:49:55 2009 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Jan 05 21:49:55 2009 -0500"
      },
      "message": "ext4: Use new buffer_head flag to check uninit group bitmaps initialization\n\nFor uninit block group, the on-disk bitmap is not initialized. That\nimplies we cannot depend on the uptodate flag on the bitmap\nbuffer_head to find bitmap validity.  Use a new buffer_head flag which\nwould be set after we properly initialize the bitmap.  This also\nprevents (re-)initializing the uninit group bitmap every time we call \next4_read_block_bitmap().\n\nSigned-off-by: Aneesh Kumar K.V \u003caneesh.kumar@linux.vnet.ibm.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\nCc: stable@kernel.org\n"
    },
    {
      "commit": "393418676a7602e1d7d3f6e560159c65c8cbd50e",
      "tree": "26b166e426748a7a4bfe3784cd8258a895daba79",
      "parents": [
        "3300beda523136f9f87821e4fba85c5c9e319645"
      ],
      "author": {
        "name": "Aneesh Kumar K.V",
        "email": "aneesh.kumar@linux.vnet.ibm.com",
        "time": "Mon Jan 05 21:38:14 2009 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Jan 05 21:38:14 2009 -0500"
      },
      "message": "ext4: Fix the race between read_inode_bitmap() and ext4_new_inode()\n\nWe need to make sure we update the inode bitmap and clear\nEXT4_BG_INODE_UNINIT flag with sb_bgl_lock held, since\next4_read_inode_bitmap() looks at EXT4_BG_INODE_UNINIT to decide\nwhether to initialize the inode bitmap each time it is called.\n(introduced by commit c806e68f.)\n\next4_read_inode_bitmap does:\n\nspin_lock(sb_bgl_lock(EXT4_SB(sb), block_group));\nif (desc-\u003ebg_flags \u0026 cpu_to_le16(EXT4_BG_INODE_UNINIT)) {\n\text4_init_inode_bitmap(sb, bh, block_group, desc);\n\nand ext4_new_inode does\nif (!ext4_set_bit_atomic(sb_bgl_lock(sbi, group),\n                   ino, inode_bitmap_bh-\u003eb_data))\n\t\t   ......\n\t\t   ...\nspin_lock(sb_bgl_lock(sbi, group));\n\ngdp-\u003ebg_flags \u0026\u003d cpu_to_le16(~EXT4_BG_INODE_UNINIT);\ni.e., on allocation we update the bitmap then we take the sb_bgl_lock\nand clear the EXT4_BG_INODE_UNINIT flag. What can happen is a\nparallel ext4_read_inode_bitmap can zero out the bitmap in between\nthe above ext4_set_bit_atomic and spin_lock(sb_bg_lock..)\n\nThe race results in below user visible errors\nEXT4-fs error (device sdb1): ext4_free_inode: bit already cleared for inode 168449\nEXT4-fs warning (device sdb1): ext4_unlink: Deleting nonexistent file ...\nEXT4-fs warning (device sdb1): ext4_rmdir: empty directory has too many links ...\n# ls -al /mnt/tmp/f/p369/d3/d6/d39/db2/dee/d10f/d3f/l71\nls: /mnt/tmp/f/p369/d3/d6/d39/db2/dee/d10f/d3f/l71: Stale NFS file handle\n\nSigned-off-by: Aneesh Kumar K.V \u003caneesh.kumar@linux.vnet.ibm.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\nCc: stable@kernel.org\n"
    },
    {
      "commit": "3300beda523136f9f87821e4fba85c5c9e319645",
      "tree": "0af91284ffa44b9c8c1b0de26674bca30271561f",
      "parents": [
        "560671a0d3c9ad2d647fa6d09375a262e1f19c4f"
      ],
      "author": {
        "name": "Aneesh Kumar K.V",
        "email": "aneesh.kumar@linux.vnet.ibm.com",
        "time": "Sat Jan 03 22:33:39 2009 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sat Jan 03 22:33:39 2009 -0500"
      },
      "message": "ext4: code cleanup\n\nRename some variables.  We also unlock locks in the reverse order we\nacquired as a part of cleanup.\n\nSigned-off-by: Aneesh Kumar K.V \u003caneesh.kumar@linux.vnet.ibm.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "560671a0d3c9ad2d647fa6d09375a262e1f19c4f",
      "tree": "a52673326726062d53b35643d51a16739cd804fc",
      "parents": [
        "e8134b27e351e813414da3b95aa8eac6d3908088"
      ],
      "author": {
        "name": "Aneesh Kumar K.V",
        "email": "aneesh.kumar@linux.vnet.ibm.com",
        "time": "Mon Jan 05 22:20:24 2009 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Jan 05 22:20:24 2009 -0500"
      },
      "message": "ext4: Use high 16 bits of the block group descriptor\u0027s free counts fields\n\nRename the lower bits with suffix _lo and add helper\nto access the values. Also rename bg_itable_unused_hi\nto bg_pad as in e2fsprogs.\n\nSigned-off-by: Aneesh Kumar K.V \u003caneesh.kumar@linux.vnet.ibm.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "a9df9a49102f3578909cba7bd33784eb3b9caaa4",
      "tree": "1d383d422bf7185e8e87c1bcfc80f9beb3074cf8",
      "parents": [
        "cde6436004ad9cd8cab5a874b6fa8b01f1da91bf"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Jan 05 22:18:16 2009 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Jan 05 22:18:16 2009 -0500"
      },
      "message": "ext4: Make ext4_group_t be an unsigned int\n\nNearly all places in the ext3/4 code which uses \"unsigned long\" is\nprobably a bug, since on 32-bit systems a ulong a 32-bits, which means\nwe are wasting stack space on 64-bit systems.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "fde4d95ad8711c84a36735a17136c45b19746af9",
      "tree": "e4d4dcaeb18083be204ba8fe55a75400ded699ae",
      "parents": [
        "fd98496f467b3d26d05ab1498f41718b5ef13de5"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Jan 05 22:17:35 2009 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Jan 05 22:17:35 2009 -0500"
      },
      "message": "ext4: remove extraneous newlines from calls to ext4_error() and ext4_warning()\n\nThis removes annoying blank syslog entries emitted by ext4_error() or\next4_warning(), since these functions add their own newline.\n\nSigned-off-by: Nick Warne \u003cnick@ukfsn.org\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n\n"
    },
    {
      "commit": "0390131ba84fd3f726f9e24fc4553828125700bb",
      "tree": "4c90afad4e8690e25aec0ce069fd450e92ab5f96",
      "parents": [
        "ff7ef329b268b603ea4a2303241ef1c3829fd574"
      ],
      "author": {
        "name": "Frank Mayhar",
        "email": "fmayhar@google.com",
        "time": "Wed Jan 07 00:06:22 2009 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Wed Jan 07 00:06:22 2009 -0500"
      },
      "message": "ext4: Allow ext4 to run without a journal\n\nA few weeks ago I posted a patch for discussion that allowed ext4 to run\nwithout a journal.  Since that time I\u0027ve integrated the excellent\ncomments from Andreas and fixed several serious bugs.  We\u0027re currently\nrunning with this patch and generating some performance numbers against\nboth ext2 (with backported reservations code) and ext4 with and without\na journal.  It just so happens that running without a journal is\nslightly faster for most everything.\n\nWe did\n\tiozone -T -t 4 s 2g -r 256k -T -I -i0 -i1 -i2\n\nwhich creates 4 threads, each of which create and do reads and writes on\na 2G file, with a buffer size of 256K, using O_DIRECT for all file opens\nto bypass the page cache.  Results:\n\n                     ext2        ext4, default   ext4, no journal\n  initial writes   13.0 MB/s        15.4 MB/s          15.7 MB/s\n  rewrites         13.1 MB/s        15.6 MB/s          15.9 MB/s\n  reads            15.2 MB/s        16.9 MB/s          17.2 MB/s\n  re-reads         15.3 MB/s        16.9 MB/s          17.2 MB/s\n  random readers    5.6 MB/s         5.6 MB/s           5.7 MB/s\n  random writers    5.1 MB/s         5.3 MB/s           5.4 MB/s \n\nSo it seems that, so far, this was a useful exercise.\n\nSigned-off-by: Frank Mayhar \u003cfmayhar@google.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "6b38e842bb832a3dbeb17e382404aef3c40ac5f9",
      "tree": "c36830341781bf49ded16a0d5432647979a74ad8",
      "parents": [
        "c38012daa7ad902a39a4213ba2b3fe50e81157ea"
      ],
      "author": {
        "name": "Al Viro",
        "email": "viro@zeniv.linux.org.uk",
        "time": "Tue Dec 30 02:03:31 2008 -0500"
      },
      "committer": {
        "name": "Al Viro",
        "email": "viro@zeniv.linux.org.uk",
        "time": "Wed Dec 31 18:07:44 2008 -0500"
      },
      "message": "nfsd race fixes: ext4\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n"
    },
    {
      "commit": "2b828925652340277a889cbc11b2d0637f7cdaf7",
      "tree": "32fcb3d3e466fc419fad2d3717956a5b5ad3d35a",
      "parents": [
        "3a3b7ce9336952ea7b9564d976d068a238976c9d",
        "58e20d8d344b0ee083febb18c2b021d2427e56ca"
      ],
      "author": {
        "name": "James Morris",
        "email": "jmorris@namei.org",
        "time": "Fri Nov 14 11:29:12 2008 +1100"
      },
      "committer": {
        "name": "James Morris",
        "email": "jmorris@namei.org",
        "time": "Fri Nov 14 11:29:12 2008 +1100"
      },
      "message": "Merge branch \u0027master\u0027 into next\n\nConflicts:\n\tsecurity/keys/internal.h\n\tsecurity/keys/process_keys.c\n\tsecurity/keys/request_key.c\n\nFixed conflicts above by using the non \u0027tsk\u0027 versions.\n\nSigned-off-by: James Morris \u003cjmorris@namei.org\u003e\n"
    },
    {
      "commit": "4c9c544e4987efe6643ad5692af47a0abfd4e0d1",
      "tree": "3414afce05e2757f4a21e483d15833c5679df7a2",
      "parents": [
        "6a2f90e9fae0824e8b6b123f1ea7d9fff9079ef3"
      ],
      "author": {
        "name": "David Howells",
        "email": "dhowells@redhat.com",
        "time": "Fri Nov 14 10:38:51 2008 +1100"
      },
      "committer": {
        "name": "James Morris",
        "email": "jmorris@namei.org",
        "time": "Fri Nov 14 10:38:51 2008 +1100"
      },
      "message": "CRED: Wrap task credential accesses in the Ext4 filesystem\n\nWrap access to task credentials so that they can be separated more easily from\nthe task_struct during the introduction of COW creds.\n\nChange most current-\u003e(|e|s|fs)[ug]id to current_(|e|s|fs)[ug]id().\n\nChange some task-\u003ee?[ug]id to task_e?[ug]id().  In some places it makes more\nsense to use RCU directly rather than a convenient wrapper; these will be\naddressed by later patches.\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nReviewed-by: James Morris \u003cjmorris@namei.org\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: Stephen Tweedie \u003csct@redhat.com\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: adilger@sun.com\nCc: linux-ext4@vger.kernel.org\nSigned-off-by: James Morris \u003cjmorris@namei.org\u003e\n"
    },
    {
      "commit": "23712a9c28b9f80a8cf70c8490358d5f562d2465",
      "tree": "b831ecf1b2d9000568063003bc6a6ea8cb5325c8",
      "parents": [
        "ed9b3e3379731e9f9d2f73f3d7fd9e7d2ce3df4a"
      ],
      "author": {
        "name": "Frederic Bohe",
        "email": "frederic.bohe@bull.net",
        "time": "Fri Nov 07 09:21:01 2008 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Fri Nov 07 09:21:01 2008 -0500"
      },
      "message": "ext4: add checksum calculation when clearing UNINIT flag in ext4_new_inode\n\nWhen initializing an uninitialized block group in ext4_new_inode(),\nits block group checksum must be re-calculated.  This fixes a race\nwhen several threads try to allocate a new inode in an UNINIT\u0027d group.\n\nThere is some question whether we need to be initializing the block\nbitmap in ext4_new_inode() at all, but for now, if we are going to\ninit the block group, let\u0027s eliminate the race.\n\nSigned-off-by: Frederic Bohe \u003cfrederic.bohe@bull.net\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "c806e68f5647109350ec546fee5b526962970fd2",
      "tree": "88f2d467ba95ceb7cbe011c424af83bdfe8a39d6",
      "parents": [
        "c2ea3fde61f1df1dbf062345f23277dcd6f01dfe"
      ],
      "author": {
        "name": "Frederic Bohe",
        "email": "frederic.bohe@bull.net",
        "time": "Fri Oct 10 08:09:18 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Fri Oct 10 08:09:18 2008 -0400"
      },
      "message": "ext4: fix initialization of UNINIT bitmap blocks\n\nThis fixes a bug which caused on-line resizing of filesystems with a\n1k blocksize to fail.  The root cause of this bug was the fact that if\nan uninitalized bitmap block gets read in by userspace (which\ne2fsprogs does try to avoid, but can happen when the blocksize is less\nthan the pagesize and an adjacent blocks is read into memory)\next4_read_block_bitmap() was erroneously depending on the buffer\nuptodate flag to decide whether it needed to initialize the bitmap\nblock in memory --- i.e., to set the standard set of blocks in use by\na block group (superblock, bitmaps, inode table, etc.).  Essentially,\next4_read_block_bitmap() assumed it was the only routine that might\ntry to read a block containing a block bitmap, which is simply not\ntrue.  \n\nTo fix this, ext4_read_block_bitmap() and ext4_read_inode_bitmap()\nmust always initialize uninitialized bitmap blocks.  Once a block or\ninode is allocated out of that bitmap, it will be marked as\ninitialized in the block group descriptor, so in general this won\u0027t\nresult any extra unnecessary work.\n\nSigned-off-by: Frederic Bohe \u003cfrederic.bohe@bull.net\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "c2ea3fde61f1df1dbf062345f23277dcd6f01dfe",
      "tree": "53ecbf57416326810540494e814c05753bf30874",
      "parents": [
        "240799cdf22bd789ea6852653c3b879d35ad0a6c"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Fri Oct 10 09:40:52 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Fri Oct 10 09:40:52 2008 -0400"
      },
      "message": "ext4: Remove old legacy block allocator\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "af5bc92dded4d98dfeabc8b5b9812571345b263d",
      "tree": "5cfaf27e673a09d3ad1341c175559be0a3ea990d",
      "parents": [
        "e5f8eab8851dff162e7ade46f084cb8575dc45f7"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Sep 08 22:25:24 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Sep 08 22:25:24 2008 -0400"
      },
      "message": "ext4: Fix whitespace checkpatch warnings/errors\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n\n"
    },
    {
      "commit": "4776004f54e4190e104caf620fd0fa5909412236",
      "tree": "ebd37cb847d58d434ad4ea3bd98c77256f05347e",
      "parents": [
        "1f7c14c62ce63805f9574664a6c6de3633d4a354"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Sep 08 23:00:52 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Sep 08 23:00:52 2008 -0400"
      },
      "message": "ext4: Add printk priority levels to clean up checkpatch warnings\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n\n"
    },
    {
      "commit": "c001077f4003fa75793bb62979baa6241dd8eb19",
      "tree": "74d37ab68e3cfe514b8a46bd8324ba713bdc605f",
      "parents": [
        "37609fd5ae62db75026d9f53096a1fbc35e040d9"
      ],
      "author": {
        "name": "Eric Sandeen",
        "email": "sandeen@redhat.com",
        "time": "Tue Aug 19 22:19:50 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Tue Aug 19 22:19:50 2008 -0400"
      },
      "message": "ext4: Fix bug where we return ENOSPC even though we have plenty of inodes\n\nThe find_group_flex() function starts with best_flex as the\nparent_fbg_group, which happens to have 0 inodes free.  Some of the\nflex groups searched have free blocks and free inodes, but the\nflex_freeb_ratio is \u003c 10, so they\u0027re skipped.  Then when a group is\ncompared to the current \"best\" flex group, it does not have more free\nblocks than \"best\", so it is skipped as well.\n\nThis continues until no flex group with free inodes is found which has\na proper ratio or which has more free blocks than the \"best\" group,\nand we\u0027re left with a \"best\" group that has 0 inodes free, and we\nreturn -ENOSPC.\n\nWe fix this by changing the logic so that if the current \"best\" flex\ngroup has no inodes free, and the current one does have room, it is\npromoted to the next \"best.\"\n\nSigned-off-by: Eric Sandeen \u003csandeen@redhat.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "b5f10eed8125702929e57cca7e5956b1b9b6d015",
      "tree": "e5b38a6f654baea3658bf100320a4d66387988a3",
      "parents": [
        "e29d1cde63be0b5f1739416b5574a83c34bf8eeb"
      ],
      "author": {
        "name": "Eric Sandeen",
        "email": "sandeen@redhat.com",
        "time": "Sat Aug 02 21:21:08 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sat Aug 02 21:21:08 2008 -0400"
      },
      "message": "ext4: lock block groups when initializing\n\nI noticed when filling a 1T filesystem with 4 threads using the\nfs_mark benchmark:\n\nfs_mark -d /mnt/test -D 256 -n 100000 -t 4 -s 20480 -F -S 0\n\nthat I occasionally got checksum mismatch errors:\n\nEXT4-fs error (device sdb): ext4_init_inode_bitmap: Checksum bad for group 6935\n\netc.  I\u0027d reliably get 4-5 of them during the run.\n\nIt appears that the problem is likely a race to init the bg\u0027s\nwhen the uninit_bg feature is enabled.\n\nWith the patch below, which adds sb_bgl_locking around initialization,\nI was able to complete several runs with no errors or warnings.\n\nSigned-off-by: Eric Sandeen \u003csandeen@redhat.com\u003e\nSigned-off-by: Theodore Ts\u0027o \u003ctytso@mit.edu\u003e\n\n"
    },
    {
      "commit": "e29d1cde63be0b5f1739416b5574a83c34bf8eeb",
      "tree": "86f2951e96888a1bd9cdb39ad4b2cb4e88893d95",
      "parents": [
        "8a266467b8c4841ca994d0fe59f39e584650e3df"
      ],
      "author": {
        "name": "Eric Sandeen",
        "email": "sandeen@redhat.com",
        "time": "Sat Aug 02 21:21:02 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sat Aug 02 21:21:02 2008 -0400"
      },
      "message": "ext4: sync up block and inode bitmap reading functions\n\next4_read_block_bitmap and read_inode_bitmap do essentially\nthe same thing, and yet they are structured quite differently.\nI came across this difference while looking at doing bg locking\nduring bg initialization.\n\nThis patch:\n\n* removes unnecessary casts in the error messages\n* renames read_inode_bitmap to ext4_read_inode_bitmap\n* and more substantially, restructures the inode bitmap\n  reading function to be more like the block bitmap counterpart.\n\nThe change to the inode bitmap reader simplifies the locking\nto be applied in the next patch.\n\nSigned-off-by: Eric Sandeen \u003csandeen@redhat.com\u003e\nSigned-off-by: Theodore Ts\u0027o \u003ctytso@mit.edu\u003e\n\n"
    },
    {
      "commit": "e4079a11f5ed966b7d972cc69e8d337a0f095e32",
      "tree": "1e70276654b4808cfcde549c7f2612947e5ab1c3",
      "parents": [
        "c07651b556323e0e763c452587fe29d2b034b314"
      ],
      "author": {
        "name": "Eric Sandeen",
        "email": "sandeen@redhat.com",
        "time": "Fri Jul 11 19:27:31 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Fri Jul 11 19:27:31 2008 -0400"
      },
      "message": "ext4: do not set extents feature from the kernel\n\nWe\u0027ve talked for a while about getting rid of any feature-\nsetting from the kernel; this gets rid of the code which would\nset the INCOMPAT_EXTENTS flag on the first file write when mounted\nas ext4[dev].\n\nWith this patch, if the extents feature is not already set on disk,\nthen mounting as ext4 will fall back to noextents with a warning,\nand if -o extents is explicitly requested, the mount will fail,\nalso with warning.\n\nSigned-off-by: Eric Sandeen \u003csandeen@redhat.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "772cb7c83ba256a11c7bf99a11bef3858d23767c",
      "tree": "a42b97e5cbd870a76b2646c2dcb658a92c53f637",
      "parents": [
        "736603ab297506f4396cb5af592004499950fcfd"
      ],
      "author": {
        "name": "Jose R. Santos",
        "email": "jrs@us.ibm.com",
        "time": "Fri Jul 11 19:27:31 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Fri Jul 11 19:27:31 2008 -0400"
      },
      "message": "ext4: New inode allocation for FLEX_BG meta-data groups.\n\nThis patch mostly controls the way inode are allocated in order to\nmake ialloc aware of flex_bg block group grouping.  It achieves this\nby bypassing the Orlov allocator when block group meta-data are packed\ntoghether through mke2fs.  Since the impact on the block allocator is\nminimal, this patch should have little or no effect on other block\nallocation algorithms. By controlling the inode allocation, it can\nbasically control where the initial search for new block begins and\nthus indirectly manipulate the block allocator.\n\nThis allocator favors data and meta-data locality so the disk will\ngradually be filled from block group zero upward.  This helps improve\nperformance by reducing seek time.  Since the group of inode tables\nwithin one flex_bg are treated as one giant inode table, uninitialized\nblock groups would not need to partially initialize as many inode\ntable as with Orlov which would help fsck time as the filesystem usage\ngoes up.\n\nSigned-off-by: Jose R. Santos \u003cjrs@us.ibm.com\u003e\nSigned-off-by: Valerie Clement \u003cvalerie.clement@bull.net\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "574ca174c97f790086e3e6f2251381420ad38fd0",
      "tree": "9a29a6f69e4f5a84f434f869935e3442eaeed315",
      "parents": [
        "3537576a707c6df98e883b77b854c6083f844602"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Fri Jul 11 19:27:31 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Fri Jul 11 19:27:31 2008 -0400"
      },
      "message": "ext4: Rename read_block_bitmap() to ext4_read_block_bitmap()\n\nSince this a non-static function, make it be ext4 specific to avoid\nconflicts with potentially other filesystems.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "91ef4caf800030fa6e5224b8a41f8c74787b303d",
      "tree": "f0c058b50ac2eb9058aa8b077b2da733f8c3ee02",
      "parents": [
        "bce7f793daec3e65ec5c5705d2457b81fe7b5725"
      ],
      "author": {
        "name": "Duane Griffin",
        "email": "duaneg@dghda.com",
        "time": "Fri Jul 11 19:27:31 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Fri Jul 11 19:27:31 2008 -0400"
      },
      "message": "ext4: handle corrupted orphan list at mount\n\nIf the orphan node list includes valid, untruncatable nodes with nlink \u003e 0\nthe ext4_orphan_cleanup loop which attempts to delete them will not do so,\ncausing it to loop forever. Fix by checking for such nodes in the\next4_orphan_get function.\n\nThis patch fixes the second case (image hdb.20000009.softlockup.gz)\nreported in http://bugzilla.kernel.org/show_bug.cgi?id\u003d10882.\n\nSigned-off-by: Duane Griffin \u003cduaneg@dghda.com\u003e\nSigned-off-by: Theodore Ts\u0027o \u003ctytso@mit.edu\u003e\n\n"
    },
    {
      "commit": "8753e88f1b4345677620ec68f847222a6301e2fd",
      "tree": "cd24e97014f89d9bbd0ea88b65ed59ea9d2e152e",
      "parents": [
        "ef7377289a1510d638004158e43878643bc75dc5"
      ],
      "author": {
        "name": "Aneesh Kumar K.V",
        "email": "aneesh.kumar@linux.vnet.ibm.com",
        "time": "Tue Apr 29 22:00:36 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Tue Apr 29 22:00:36 2008 -0400"
      },
      "message": "ext4: mark inode dirty after initializing the extent tree\n\nWe should mark the inode dirty only after initializing the extent\ntree.  Also if we fail during extent initialization we need\nto call DQUOT_FREE_INODE.\n\nSigned-off-by: Aneesh Kumar K.V \u003caneesh.kumar@linux.vnet.ibm.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n\n"
    },
    {
      "commit": "3dcf54515aa4981a647ad74859199032965193a5",
      "tree": "b95d895bb2f6fa15be29411b15d538c21b0de930",
      "parents": [
        "216553c4b7f3e3e2beb4981cddca9b2027523928"
      ],
      "author": {
        "name": "Christoph Hellwig",
        "email": "hch@lst.de",
        "time": "Tue Apr 29 18:13:32 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Tue Apr 29 18:13:32 2008 -0400"
      },
      "message": "ext4: move headers out of include/linux\n\nMove ext4 headers out of include/linux.  This is just the trivial move,\nthere\u0027s some more thing that could be done later. \n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Mingming Cao \u003ccmm@us.ibm.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n\n"
    },
    {
      "commit": "46e665e9d297525d286989640cf4247cbe941df6",
      "tree": "4858cd21e48cab2b2c51839dd80378f6044d3394",
      "parents": [
        "620de4e19890c623eb4ba293ec19b42e2e391b89"
      ],
      "author": {
        "name": "Harvey Harrison",
        "email": "harvey.harrison@gmail.com",
        "time": "Thu Apr 17 10:38:59 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Thu Apr 17 10:38:59 2008 -0400"
      },
      "message": "ext4: replace remaining __FUNCTION__ occurrences\n\n__FUNCTION__ is gcc-specific, use __func__\n\nSigned-off-by: Harvey Harrison \u003charvey.harrison@gmail.com\u003e\nCc: \u003clinux-ext4@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "e8546d0615542684ca02ba03edebec1a503beb6b",
      "tree": "c0114f0e86278dd1418f5a548b38d5d1c4b157b3",
      "parents": [
        "9a0762c5af40e4aa64fef999967459c98e6ae4c9"
      ],
      "author": {
        "name": "Marcin Slusarz",
        "email": "marcin.slusarz@gmail.com",
        "time": "Thu Apr 17 10:38:59 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Thu Apr 17 10:38:59 2008 -0400"
      },
      "message": "ext4: le*_add_cpu conversion\n\nreplace all:\nlittle_endian_variable \u003d cpu_to_leX(leX_to_cpu(little_endian_variable) +\n\t\t\t\t\texpression_in_cpu_byteorder);\nwith:\n\tleX_add_cpu(\u0026little_endian_variable, expression_in_cpu_byteorder);\ngenerated with semantic patch\n\nSigned-off-by: Marcin Slusarz \u003cmarcin.slusarz@gmail.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\nCc: linux-ext4@vger.kernel.org\nCc: sct@redhat.com\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: adilger@clusterfs.com\nCc: Mingming Cao \u003ccmm@us.ibm.com\u003e\n"
    },
    {
      "commit": "e65187e6d0d541f992e684f88a7e090dcff1aac8",
      "tree": "bf8af79f6f78596b8ca0f9affe94586f3a74f7eb",
      "parents": [
        "95c3889cb88ca4833096553c12cde9e7eb792f4c"
      ],
      "author": {
        "name": "Aneesh Kumar K.V",
        "email": "aneesh.kumar@linux.vnet.ibm.com",
        "time": "Tue Apr 29 08:11:12 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Tue Apr 29 08:11:12 2008 -0400"
      },
      "message": "ext4: Enable extent format for symlinks.\n\nThis patch enables extent-formatted normal symlinks.  Using extents\nformat allows a symlink to refer to a block number larger than 2^32\non large filesystems.  We still don\u0027t enable extent format for fast\nsymlinks, which are contained in the inode itself.\n\nSigned-off-by: Aneesh Kumar K.V \u003caneesh.kumar@linux.vnet.ibm.com\u003e\nSigned-off-by: Mingming Cao \u003ccmm@us.ibm.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n\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": "42bf0383d1e09dd1b38f3debb13a76b2f87634b3",
      "tree": "6806cafbbc0f72f84c16c4875909307c5aec09bf",
      "parents": [
        "2c98615d3b64ce7888cd46cc668023f456daf287"
      ],
      "author": {
        "name": "Aneesh Kumar K.V",
        "email": "aneesh.kumar@linux.vnet.ibm.com",
        "time": "Mon Feb 25 16:38:03 2008 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Feb 25 16:38:03 2008 -0500"
      },
      "message": "ext4: set EXT4_EXTENTS_FL only for directory and regular files\n\nIn addition, don\u0027t inherit EXT4_EXTENTS_FL from parent directory.\nIf we have a directory with extent flag set and later mount the file\nsystem with -o noextents, the files created in that directory will also\nhave extent flag set but we would not have called ext4_ext_tree_init for\nthem. This will cause error later when we are verifying the extent header\n\nSigned-off-by: Aneesh Kumar K.V \u003caneesh.kumar@linux.vnet.ibm.com\u003e\nAcked-off-by: Eric Sandeen \u003csandeen@redhat.com\u003e\nSigned-off-by: Mingming Cao \u003ccmm@us.ibm.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "1d1fe1ee02b9ac2660995b10e35dd41448fef011",
      "tree": "8961bbe5a36a07dc8ad8c6cd3e973ce0fcde5850",
      "parents": [
        "473043dcee1874aab99f66b0362b344618eb3790"
      ],
      "author": {
        "name": "David Howells",
        "email": "dhowells@redhat.com",
        "time": "Thu Feb 07 00:15:37 2008 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Thu Feb 07 08:42:27 2008 -0800"
      },
      "message": "iget: stop EXT4 from using iget() and read_inode()\n\nStop the EXT4 filesystem from using iget() and read_inode().  Replace\next4_read_inode() with ext4_iget(), and call that instead of iget().\next4_iget() then uses iget_locked() directly and returns a proper error code\ninstead of an inode in the event of an error.\n\next4_fill_super() returns any error incurred when getting the root inode\ninstead of EINVAL.\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nAcked-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\nAcked-by: Jan Kara \u003cjack@suse.cz\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": "c549a95d40efd83fc054785dd1634e8b71fba890",
      "tree": "3d4623829ceb02b34f1e8a110eb2b8d741db8b14",
      "parents": [
        "aa22df2cc84011808ad7227437ac8f0e01030480"
      ],
      "author": {
        "name": "Eric Sandeen",
        "email": "sandeen@redhat.com",
        "time": "Mon Jan 28 23:58:27 2008 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Jan 28 23:58:27 2008 -0500"
      },
      "message": "ext4: fix up EXT4FS_DEBUG builds\n\nBuilds with EXT4FS_DEBUG defined (to enable ext4_debug()) fail\nwithout these changes.  Clean up some format warnings too.\n\nSigned-off-by: Eric Sandeen \u003csandeen@redhat.com\u003e\nSigned-off-by: Mingming Cao \u003ccmm@us.ibm.com\u003e\n"
    },
    {
      "commit": "a48380f769dfed6163fb82a68b13bd562ea1e027",
      "tree": "2c898479122b3da5c9531aba4b3629c3e6ecfe9f",
      "parents": [
        "7973c0c19ecba92f113488045005f8e7ce1cd7c8"
      ],
      "author": {
        "name": "Aneesh Kumar K.V",
        "email": "aneesh.kumar@linux.vnet.ibm.com",
        "time": "Mon Jan 28 23:58:27 2008 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Jan 28 23:58:27 2008 -0500"
      },
      "message": "ext4: Rename i_dir_acl to i_size_high\n\nRename ext4_inode.i_dir_acl to i_size_high\ndrop ext4_inode_info.i_dir_acl as it is not used\nRename ext4_inode.i_size to ext4_inode.i_size_lo\nAdd helper function for accessing the ext4_inode combined i_size.\n\nSigned-off-by: Aneesh Kumar K.V \u003caneesh.kumar@linux.vnet.ibm.com\u003e\n"
    },
    {
      "commit": "99e6f829a854daa6d56006cad51156e98863e73a",
      "tree": "fff435d898ce3db5492252a241531d4016ba3b65",
      "parents": [
        "2aa9fc4c405467f6afbbb2162ff8afaced47d99b"
      ],
      "author": {
        "name": "Aneesh Kumar K.V",
        "email": "aneesh.kumar@linux.vnet.ibm.com",
        "time": "Mon Jan 28 23:58:27 2008 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Jan 28 23:58:27 2008 -0500"
      },
      "message": "ext4: Introduce ext4_update_*_feature\n\nIntroduce ext4_update_*_feature and use them instead\nof opencoding.\n\n\nSigned-off-by: Aneesh Kumar K.V \u003caneesh.kumar@linux.vnet.ibm.com\u003e\n"
    },
    {
      "commit": "2aa9fc4c405467f6afbbb2162ff8afaced47d99b",
      "tree": "49fc3490d5b59af8a409207de2d5faac52ab8c91",
      "parents": [
        "fd2d42912f9f09e5250cb3b024ee0625704e9cb7"
      ],
      "author": {
        "name": "Avantika Mathur",
        "email": "mathur@us.ibm.com",
        "time": "Mon Jan 28 23:58:27 2008 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Jan 28 23:58:27 2008 -0500"
      },
      "message": "ext4: fixes block group number being set to a negative value\n\nThis patch fixes various places where the group number is set to a negative\nvalue.\n\nSigned-off-by: Avantika Mathur \u003cmathur@us.ibm.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "fd2d42912f9f09e5250cb3b024ee0625704e9cb7",
      "tree": "23e85123e8cc06d518fd7cff665f93429e19e4e2",
      "parents": [
        "bba907433b85ba2adae1bb3b6fd29b4e5f35c468"
      ],
      "author": {
        "name": "Avantika Mathur",
        "email": "mathur@us.ibm.com",
        "time": "Mon Jan 28 23:58:27 2008 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Jan 28 23:58:27 2008 -0500"
      },
      "message": "ext4: add ext4_group_t, and change all group variables to this type.\n\nIn many places variables for block group are of type int, which limits the\nmaximum number of block groups to 2^31.  Each block group can have up to\n2^15 blocks, with a 4K block size,  and the max filesystem size is limited to\n2^31 * (2^15 * 2^12) \u003d 2^58  -- or 256 PB\n\nThis patch introduces a new type ext4_group_t, of type unsigned long, to\nrepresent block group numbers in ext4.\nAll occurrences of block group variables are converted to type ext4_group_t.\n\nSigned-off-by: Avantika Mathur \u003cmathur@us.ibm.com\u003e\n"
    },
    {
      "commit": "717d50e4971b81b96c0199c91cdf0039a8cb181a",
      "tree": "a8d68edbc1f064c76cbfee206e093d2c86c80ba0",
      "parents": [
        "4074fe3736b1a43431dff870bf9055ac5dcf3f03"
      ],
      "author": {
        "name": "Andreas Dilger",
        "email": "adilger@clusterfs.com",
        "time": "Tue Oct 16 18:38:25 2007 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Wed Oct 17 18:50:00 2007 -0400"
      },
      "message": "Ext4: Uninitialized Block Groups\n\nIn pass1 of e2fsck, every inode table in the fileystem is scanned and checked,\nregardless of whether it is in use.  This is this the most time consuming part\nof the filesystem check.  The unintialized block group feature can greatly\nreduce e2fsck time by eliminating checking of uninitialized inodes.\n\nWith this feature, there is a a high water mark of used inodes for each block\ngroup.  Block and inode bitmaps can be uninitialized on disk via a flag in the\ngroup descriptor to avoid reading or scanning them at e2fsck time.  A checksum\nof each group descriptor is used to ensure that corruption in the group\ndescriptor\u0027s bit flags does not cause incorrect operation.\n\nThe feature is enabled through a mkfs option\n\n\tmke2fs /dev/ -O uninit_groups\n\nA patch adding support for uninitialized block groups to e2fsprogs tools has\nbeen posted to the linux-ext4 mailing list.\n\nThe patches have been stress tested with fsstress and fsx.  In performance\ntests testing e2fsck time, we have seen that e2fsck time on ext3 grows\nlinearly with the total number of inodes in the filesytem.  In ext4 with the\nuninitialized block groups feature, the e2fsck time is constant, based\nsolely on the number of used inodes rather than the total inode count.\nSince typical ext4 filesystems only use 1-10% of their inodes, this feature can\ngreatly reduce e2fsck time for users.  With performance improvement of 2-20\ntimes, depending on how full the filesystem is.\n\nThe attached graph shows the major improvements in e2fsck times in filesystems\nwith a large total inode count, but few inodes in use.\n\nIn each group descriptor if we have\n\nEXT4_BG_INODE_UNINIT set in bg_flags:\n        Inode table is not initialized/used in this group. So we can skip\n        the consistency check during fsck.\nEXT4_BG_BLOCK_UNINIT set in bg_flags:\n        No block in the group is used. So we can skip the block bitmap\n        verification for this group.\n\nWe also add two new fields to group descriptor as a part of\nuninitialized group patch.\n\n        __le16  bg_itable_unused;       /* Unused inodes count */\n        __le16  bg_checksum;            /* crc16(sb_uuid+group+desc) */\n\nbg_itable_unused:\n\nIf we have EXT4_BG_INODE_UNINIT not set in bg_flags\nthen bg_itable_unused will give the offset within\nthe inode table till the inodes are used. This can be\nused by fsck to skip list of inodes that are marked unused.\n\nbg_checksum:\nNow that we depend on bg_flags and bg_itable_unused to determine\nthe block and inode usage, we need to make sure group descriptor\nis not corrupt. We add checksum to group descriptor to\ndetect corruption. If the descriptor is found to be corrupt, we\nmark all the blocks and inodes in the group used.\n\nSigned-off-by: Avantika Mathur \u003cmathur@us.ibm.com\u003e\nSigned-off-by: Andreas Dilger \u003cadilger@clusterfs.com\u003e\nSigned-off-by: Mingming Cao \u003ccmm@us.ibm.com\u003e\nSigned-off-by: Aneesh Kumar K.V \u003caneesh.kumar@linux.vnet.ibm.com\u003e\n"
    },
    {
      "commit": "f077d0d7ea5d65d01f2ce2e7131e964c13a32433",
      "tree": "17022250e65dd332ea6da88e70df7df3f27725dc",
      "parents": [
        "6f38c74f5a01c7bccf58f9d7ee47ea24fb45752f"
      ],
      "author": {
        "name": "Coly Li",
        "email": "coyli@suse.de",
        "time": "Tue Oct 16 18:38:25 2007 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Wed Oct 17 18:49:59 2007 -0400"
      },
      "message": "ext4: Remove (partial, never completed) fragment support\n\nFragment support in ext2/3/4 was never implemented, and it probably will\nnever be implemented.   So remove it from ext4.\n\nSigned-off-by: Coly Li \u003ccoyli@suse.de\u003e\nAcked-by: Andreas Dilger \u003cadilger@clusterfs.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\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": "ef7f38359ea8b3e9c7f2cae9a4d4935f55ca9e80",
      "tree": "ee34a5821332cf70b89827eb872f08bc0dd43f89",
      "parents": [
        "0f49d5d019afa4e94253bfc92f0daca3badb990b"
      ],
      "author": {
        "name": "Kalpak Shah",
        "email": "kalpak@clusterfs.com",
        "time": "Wed Jul 18 09:15:20 2007 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Wed Jul 18 09:15:20 2007 -0400"
      },
      "message": "ext4: Add nanosecond timestamps\n\nThis patch adds nanosecond timestamps for ext4. This involves adding\n*time_extra fields to the ext4_inode to extend the timestamps to\n64-bits.  Creation time is also added by this patch.\n\nThese extended fields will fit into an inode if the filesystem was\nformatted with large inodes (-I 256 or larger) and there are currently\nno EAs consuming all of the available space. For new inodes we always\nreserve enough space for the kernel\u0027s known extended fields, but for\ninodes created with an old kernel this might not have been the case. So\nthis patch also adds the EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE feature\nflag(ro-compat so that older kernels can\u0027t create inodes with a smaller\nextra_isize). which indicates if the fields fitting inside\ns_min_extra_isize are available or not.  If the expansion of inodes if\nunsuccessful then this feature will be disabled.  This feature is only\nenabled if requested by the sysadmin.\n\nNone of the extended inode fields is critical for correct filesystem\noperation.\n\nSigned-off-by: Andreas Dilger \u003cadilger@clusterfs.com\u003e\nSigned-off-by: Kalpak Shah \u003ckalpak@clusterfs.com\u003e\nSigned-off-by: Eric Sandeen \u003csandeen@redhat.com\u003e\nSigned-off-by: Dave Kleikamp \u003cshaggy@linux.vnet.ibm.com\u003e\nSigned-off-by: Mingming Cao \u003ccmm@us.ibm.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n\n"
    },
    {
      "commit": "f4e5bc244f23ee024a4dfa034b591b219b2bfb8f",
      "tree": "df0cb1469de20ae9706a671ab8e9b049e1d93f63",
      "parents": [
        "72b64b594081ef0a0717f6aad77e891c72ed4afa"
      ],
      "author": {
        "name": "Andrew Morton",
        "email": "akpm@osdl.org",
        "time": "Wed Oct 11 01:21:19 2006 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Wed Oct 11 11:14:18 2006 -0700"
      },
      "message": "[PATCH] ext4 64 bit divide fix\n\nWith CONFIG_LBD\u003dn, sector_div() expands to a plain old divide.  But ext4 is\n_not_ passing in a sector_t as the first argument, so...\n\nfs/built-in.o: In function `ext4_get_group_no_and_offset\u0027:\nfs/ext4/balloc.c:39: undefined reference to `__umoddi3\u0027\nfs/ext4/balloc.c:41: undefined reference to `__udivdi3\u0027\nfs/built-in.o: In function `find_group_orlov\u0027:\nfs/ext4/ialloc.c:278: undefined reference to `__udivdi3\u0027\nfs/built-in.o: In function `ext4_fill_super\u0027:\nfs/ext4/super.c:1488: undefined reference to `__udivdi3\u0027\nfs/ext4/super.c:1488: undefined reference to `__umoddi3\u0027\nfs/ext4/super.c:1594: undefined reference to `__udivdi3\u0027\nfs/ext4/super.c:1601: undefined reference to `__umoddi3\u0027\n\nFix that up by calling do_div() directly.\n\nAlso cast the arg to u64.  do_div() is only defined on u64, and ext4_fsblk_t\nis supposed to be opaque.\n\nNote especially the changes to find_group_orlov().  It was attempting to do\n\n\tdo_div(int, unsigned long long);\n\nwhich is royally screwed up.  Switched it to plain old divide.\n\nCc: \u003clinux-ext4@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "8fadc14323684c547f74cf2f4d13517c6c264731",
      "tree": "2b3eedf241a0d7c86f6b808f76e267ded28506ed",
      "parents": [
        "0d1ee42f27d30eed1659f3e85bcbbc7b3711f61f"
      ],
      "author": {
        "name": "Alexandre Ratchov",
        "email": "alexandre.ratchov@bull.net",
        "time": "Wed Oct 11 01:21:15 2006 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Wed Oct 11 11:14:18 2006 -0700"
      },
      "message": "[PATCH] ext4: move block number hi bits\n\nmove \u0027_hi\u0027 bits of block numbers in the larger part of the\nblock group descriptor structure\n\nSigned-off-by: Alexandre Ratchov \u003calexandre.ratchov@bull.net\u003e\nSigned-off-by: Dave Kleikamp \u003cshaggy@austin.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "bd81d8eec043094d3ff729a8ff6d5b3a06d3c4b1",
      "tree": "6813a81b8d8453536839d8bcdc8ed924fdab3f44",
      "parents": [
        "a1ddeb7eaecea6a924e3a79aa386797020cb436f"
      ],
      "author": {
        "name": "Laurent Vivier",
        "email": "Laurent.Vivier@bull.net",
        "time": "Wed Oct 11 01:21:10 2006 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Wed Oct 11 11:14:17 2006 -0700"
      },
      "message": "[PATCH] ext4: 64bit metadata\n\nIn-kernel super block changes to support \u003e32 bit free blocks numbers.\n\nSigned-off-by: Laurent Vivier \u003cLaurent.Vivier@bull.net\u003e\nSigned-off-by: Dave Kleikamp \u003cshaggy@austin.ibm.com\u003e\nSigned-off-by: Alexandre Ratchov \u003calexandre.ratchov@bull.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "3a5b2ecdd1fa63a8f25bd769223bc1c2564ce45d",
      "tree": "dc80fdde9ed01e77ef0ed6fdef7573d303bd07db",
      "parents": [
        "a86c61812637c7dd0c57e29880cffd477b62f2e7"
      ],
      "author": {
        "name": "Mingming Cao",
        "email": "cmm@us.ibm.com",
        "time": "Wed Oct 11 01:21:05 2006 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Wed Oct 11 11:14:16 2006 -0700"
      },
      "message": "[PATCH] ext4: switch fsblk to sector_t\n\nRedefine ext3 in-kernel filesystem block type (ext3_fsblk_t) from unsigned\nlong to sector_t, to allow kernel to handle  \u003e32 bit ext3 blocks.\n\nSigned-off-by: Mingming Cao \u003ccmm@us.ibm.com\u003e\nSigned-off-by: Dave Kleikamp \u003cshaggy@austin.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "a86c61812637c7dd0c57e29880cffd477b62f2e7",
      "tree": "10737307293afde2999a887cfeac32c7d7584aa7",
      "parents": [
        "c3fcc8137ce4296ad6ab94f88bd60cbe03d21527"
      ],
      "author": {
        "name": "Alex Tomas",
        "email": "alex@clusterfs.com",
        "time": "Wed Oct 11 01:21:03 2006 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Wed Oct 11 11:14:16 2006 -0700"
      },
      "message": "[PATCH] ext3: add extent map support\n\nOn disk extents format:\n/*\n* this is extent on-disk structure\n* it\u0027s used at the bottom of the tree\n*/\nstruct ext3_extent {\n__le32  ee_block;       /* first logical block extent covers */\n__le16  ee_len;         /* number of blocks covered by extent */\n__le16  ee_start_hi;    /* high 16 bits of physical block */\n__le32  ee_start;       /* low 32 bigs of physical block */\n};\n\nSigned-off-by: Alex Tomas \u003calex@clusterfs.com\u003e\nSigned-off-by: Dave Kleikamp \u003cshaggy@austin.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "dab291af8d6307a3075c3d67d0cc8f98e646cb94",
      "tree": "a2207ab3e2e00472e5e3c969ad0dd211fb9e4151",
      "parents": [
        "a920e9416b3469994860ab552dfd7fd5a5aff162"
      ],
      "author": {
        "name": "Mingming Cao",
        "email": "cmm@us.ibm.com",
        "time": "Wed Oct 11 01:21:01 2006 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Wed Oct 11 11:14:16 2006 -0700"
      },
      "message": "[PATCH] jbd2: enable building of jbd2 and have ext4 use it rather than jbd\n\nReworked from a patch by Mingming Cao and Randy Dunlap\n\nSigned-off-By: Randy Dunlap \u003crdunlap@xenotime.net\u003e\nSigned-off-by: Mingming Cao \u003ccmm@us.ibm.com\u003e\nSigned-off-by: Dave Kleikamp \u003cshaggy@austin.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "617ba13b31fbf505cc21799826639ef24ed94af0",
      "tree": "2a41e8c993f7c1eed115ad24047d546ba56cbdf5",
      "parents": [
        "ac27a0ec112a089f1a5102bc8dffc79c8c815571"
      ],
      "author": {
        "name": "Mingming Cao",
        "email": "cmm@us.ibm.com",
        "time": "Wed Oct 11 01:20:53 2006 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Wed Oct 11 11:14:15 2006 -0700"
      },
      "message": "[PATCH] ext4: rename ext4 symbols to avoid duplication of ext3 symbols\n\nMingming Cao originally did this work, and Shaggy reproduced it using some\nscripts from her.\n\nSigned-off-by: Mingming Cao \u003ccmm@us.ibm.com\u003e\nSigned-off-by: Dave Kleikamp \u003cshaggy@austin.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "ac27a0ec112a089f1a5102bc8dffc79c8c815571",
      "tree": "bcbcc0a5a88bf99b35119d9d9d660a37c503d787",
      "parents": [
        "502717f4e112b18d9c37753a32f675bec9f2838b"
      ],
      "author": {
        "name": "Dave Kleikamp",
        "email": "shaggy@austin.ibm.com",
        "time": "Wed Oct 11 01:20:50 2006 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Wed Oct 11 11:14:15 2006 -0700"
      },
      "message": "[PATCH] ext4: initial copy of files from ext3\n\nStart of the ext4 patch series.  See Documentation/filesystems/ext4.txt for\ndetails.\n\nThis is a simple copy of the files in fs/ext3 to fs/ext4 and\n/usr/incude/linux/ext3* to /usr/include/ex4*\n\nSigned-off-by: Dave Kleikamp \u003cshaggy@austin.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    }
  ]
}
