)]}'
{
  "log": [
    {
      "commit": "9cb569d601e0b93e01c20a22872270ec663b75f6",
      "tree": "80b2568fae48018806e82f8884062dae8a5494ae",
      "parents": [
        "87e99511ea54510ffb60b98001d108794d5037f8"
      ],
      "author": {
        "name": "Christoph Hellwig",
        "email": "hch@lst.de",
        "time": "Wed Aug 11 17:06:24 2010 +0200"
      },
      "committer": {
        "name": "Al Viro",
        "email": "viro@zeniv.linux.org.uk",
        "time": "Wed Aug 18 01:09:01 2010 -0400"
      },
      "message": "remove SWRITE* I/O types\n\nThese flags aren\u0027t real I/O types, but tell ll_rw_block to always\nlock the buffer instead of giving up on a failed trylock.\n\nInstead add a new write_dirty_buffer helper that implements this semantic\nand use it from the existing SWRITE* callers.  Note that the ll_rw_block\ncode had a bug where it didn\u0027t promote WRITE_SYNC_PLUG properly, which\nthis patch fixes.\n\nIn the ufs code clean up the helper that used to call ll_rw_block\nto mirror sync_dirty_buffer, which is the function it implements for\ncompound buffers.\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n"
    },
    {
      "commit": "87e99511ea54510ffb60b98001d108794d5037f8",
      "tree": "359228828515e02302d9b259a066a1f1118eba0a",
      "parents": [
        "dad5eb6daa7eeb63d4fc9d982892c59faa07e797"
      ],
      "author": {
        "name": "Christoph Hellwig",
        "email": "hch@lst.de",
        "time": "Wed Aug 11 17:05:45 2010 +0200"
      },
      "committer": {
        "name": "Al Viro",
        "email": "viro@zeniv.linux.org.uk",
        "time": "Wed Aug 18 01:09:00 2010 -0400"
      },
      "message": "kill BH_Ordered flag\n\nInstead of abusing a buffer_head flag just add a variant of\nsync_dirty_buffer which allows passing the exact type of write\nflag required.\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n"
    },
    {
      "commit": "6d0bf00512b3b1b5d09d9a44919983eec1cc6fd0",
      "tree": "4aef98bb3b212cc04f1dbb011548d83f9ab77c3e",
      "parents": [
        "45d7f32c7a43cbb9592886d38190e379e2eb2226"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Aug 09 17:28:38 2010 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Aug 09 17:28:38 2010 -0400"
      },
      "message": "ext4: clean up compiler warning in start_this_handle()\n\nFix the compiler warning:\n\n  fs/jbd2/transaction.c: In function ‘start_this_handle’:\n  fs/jbd2/transaction.c:98: warning: unused variable ‘ts’\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n\n"
    },
    {
      "commit": "09dc942c2a767e2d298f1cc9294bc19c7d7208c5",
      "tree": "d310c118467c90c264e953bdc320ae08394c662a",
      "parents": [
        "90e0c225968f0878e090c7ff3f88323973476cee",
        "6c7a120ac6c62316ab1fc78dfc0a7b13f3bfcbff"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Sat Aug 07 13:03:53 2010 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Sat Aug 07 13:03:53 2010 -0700"
      },
      "message": "Merge branch \u0027next\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4\n\n* \u0027next\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (40 commits)\n  ext4: Adding error check after calling ext4_mb_regular_allocator()\n  ext4: Fix dirtying of journalled buffers in data\u003djournal mode\n  ext4: re-inline ext4_rec_len_(to|from)_disk functions\n  jbd2: Remove t_handle_lock from start_this_handle()\n  jbd2: Change j_state_lock to be a rwlock_t\n  jbd2: Use atomic variables to avoid taking t_handle_lock in jbd2_journal_stop\n  ext4: Add mount options in superblock\n  ext4: force block allocation on quota_off\n  ext4: fix freeze deadlock under IO\n  ext4: drop inode from orphan list if ext4_delete_inode() fails\n  ext4: check to make make sure bd_dev is set before dereferencing it\n  jbd2: Make barrier messages less scary\n  ext4: don\u0027t print scary messages for allocation failures post-abort\n  ext4: fix EFBIG edge case when writing to large non-extent file\n  ext4: fix ext4_get_blocks references\n  ext4: Always journal quota file modifications\n  ext4: Fix potential memory leak in ext4_fill_super\n  ext4: Don\u0027t error out the fs if the user tries to make a file too big\n  ext4: allocate stripe-multiple IOs on stripe boundaries\n  ext4: move aio completion after unwritten extent conversion\n  ...\n\nFix up conflicts in fs/ext4/inode.c as per Ted.\n\nFix up xfs conflicts as per earlier xfs merge.\n"
    },
    {
      "commit": "8dd420466c7bfc459fa04680bd5690bfc41a4553",
      "tree": "6004eaaa7266979397a9d87e30066fc91d3650c3",
      "parents": [
        "a931da6ac9331a6c80dd91c199105806f2336188"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Tue Aug 03 21:38:29 2010 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Tue Aug 03 21:38:29 2010 -0400"
      },
      "message": "jbd2: Remove t_handle_lock from start_this_handle()\n\nThis should remove the last exclusive lock from start_this_handle(),\nso that we should now be able to start multiple transactions at the\nsame time on large SMP systems.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "a931da6ac9331a6c80dd91c199105806f2336188",
      "tree": "2d4ea766def9a98d21c2379f41e796b0e57ccd6b",
      "parents": [
        "a51dca9cd3bb4ec5a05bfb6feabf024a5c808a37"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Tue Aug 03 21:35:12 2010 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Tue Aug 03 21:35:12 2010 -0400"
      },
      "message": "jbd2: Change j_state_lock to be a rwlock_t\n\nLockstat reports have shown that j_state_lock is a major source of\nlock contention, especially on systems with more than 4 CPU cores.  So\nchange it to be a read/write spinlock.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "a51dca9cd3bb4ec5a05bfb6feabf024a5c808a37",
      "tree": "31256b4fa3ec1d0e1e27196607499877c662ee86",
      "parents": [
        "8b67f04ab9de5d8f3a71aef72bf02c995a506db5"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Aug 02 08:43:25 2010 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Aug 02 08:43:25 2010 -0400"
      },
      "message": "jbd2: Use atomic variables to avoid taking t_handle_lock in jbd2_journal_stop\n\nBy using an atomic_t for t_updates and t_outstanding credits, this\nshould allow us to not need to take transaction t_handle_lock in\njbd2_journal_stop().\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "cc937db74bd5fe75f4cfebbfc4a04c1da10f0695",
      "tree": "53c314f54e5904fdfe7768adc6f852bdc60040e3",
      "parents": [
        "e3570639c8b5f2c6a5018a2649c2b7c276af76d7"
      ],
      "author": {
        "name": "Eric Sandeen",
        "email": "sandeen@redhat.com",
        "time": "Tue Jul 27 11:56:08 2010 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Tue Jul 27 11:56:08 2010 -0400"
      },
      "message": "jbd2: Make barrier messages less scary\n\nSaying things like \"sync failed\" when a device does\nnot support barriers makes users slightly more worried than\nthey need to be; rather than talking about sync failures,\nlet\u0027s just state the barrier-based facts.\n\nSigned-off-by: Eric Sandeen \u003csandeen@redhat.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "47def82672b3ba4e7c5e9a4fe48a556f8684d0d6",
      "tree": "a0cfdaca8be99980c09d2b38ff676834c85ab2c4",
      "parents": [
        "40389687382bf0ae71458e7c0f828137a438a956"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Tue Jul 27 11:56:05 2010 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Tue Jul 27 11:56:05 2010 -0400"
      },
      "message": "jbd2: Remove __GFP_NOFAIL from jbd2 layer\n\n__GFP_NOFAIL is going away, so add our own retry loop.  Also add\njbd2__journal_start() and jbd2__journal_restart() which take a gfp\nmask, so that file systems can optionally (re)start transaction\nhandles using GFP_KERNEL.  If they do this, then they need to be\nprepared to handle receiving an PTR_ERR(-ENOMEM) error, and be ready\nto reflect that error up to userspace.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "13ceef099edd2b70c5a6f3a9ef5d6d97cda2e096",
      "tree": "5d65c397e9e85abe11a6fb0ebf3a69e8a4e91e0d",
      "parents": [
        "a39953dd95ff10e311083d94f4f95c348cb22464"
      ],
      "author": {
        "name": "Jan Kara",
        "email": "jack@suse.cz",
        "time": "Wed Jul 14 07:56:33 2010 +0200"
      },
      "committer": {
        "name": "Joel Becker",
        "email": "joel.becker@oracle.com",
        "time": "Thu Jul 15 15:17:47 2010 -0700"
      },
      "message": "jbd2/ocfs2: Fix block checksumming when a buffer is used in several transactions\n\nOCFS2 uses t_commit trigger to compute and store checksum of the just\ncommitted blocks. When a buffer has b_frozen_data, checksum is computed\nfor it instead of b_data but this can result in an old checksum being\nwritten to the filesystem in the following scenario:\n\n1) transaction1 is opened\n2) handle1 is opened\n3) journal_access(handle1, bh)\n    - This sets jh-\u003eb_transaction to transaction1\n4) modify(bh)\n5) journal_dirty(handle1, bh)\n6) handle1 is closed\n7) start committing transaction1, opening transaction2\n8) handle2 is opened\n9) journal_access(handle2, bh)\n    - This copies off b_frozen_data to make it safe for transaction1 to commit.\n      jh-\u003eb_next_transaction is set to transaction2.\n10) jbd2_journal_write_metadata() checksums b_frozen_data\n11) the journal correctly writes b_frozen_data to the disk journal\n12) handle2 is closed\n    - There was no dirty call for the bh on handle2, so it is never queued for\n      any more journal operation\n13) Checkpointing finally happens, and it just spools the bh via normal buffer\nwriteback.  This will write b_data, which was never triggered on and thus\ncontains a wrong (old) checksum.\n\nThis patch fixes the problem by calling the trigger at the moment data is\nfrozen for journal commit - i.e., either when b_frozen_data is created by\ndo_get_write_access or just before we write a buffer to the log if\nb_frozen_data does not exist. We also rename the trigger to t_frozen as\nthat better describes when it is called.\n\nSigned-off-by: Jan Kara \u003cjack@suse.cz\u003e\nSigned-off-by: Mark Fasheh \u003cmfasheh@suse.com\u003e\nSigned-off-by: Joel Becker \u003cjoel.becker@oracle.com\u003e\n"
    },
    {
      "commit": "5a0790c2c4a18435759a70e1562450035d778339",
      "tree": "80acb12d0e37196cf60ae4ca150c6b556115f302",
      "parents": [
        "07a038245b28df9196ffb2e8cc626e9b956a4e23"
      ],
      "author": {
        "name": "Andi Kleen",
        "email": "andi@firstfloor.org",
        "time": "Mon Jun 14 13:28:03 2010 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Jun 14 13:28:03 2010 -0400"
      },
      "message": "ext4: remove initialized but not read variables\n\nNo real bugs found, just removed some dead code.\n\nFound by gcc 4.6\u0027s new warnings.\n\nSigned-off-by: Andi Kleen \u003cak@linux.intel.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "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": "ee9a3607fb03e804ddf624544105f4e34260c380",
      "tree": "ce41b6e0fa10982a306f6c142a92dbf3c9961284",
      "parents": [
        "b492e95be0ae672922f4734acf3f5d35c30be948",
        "d515e86e639890b33a09390d062b0831664f04a2"
      ],
      "author": {
        "name": "Jens Axboe",
        "email": "jens.axboe@oracle.com",
        "time": "Fri May 21 21:27:26 2010 +0200"
      },
      "committer": {
        "name": "Jens Axboe",
        "email": "jens.axboe@oracle.com",
        "time": "Fri May 21 21:27:26 2010 +0200"
      },
      "message": "Merge branch \u0027master\u0027 into for-2.6.35\n\nConflicts:\n\tfs/ext3/fsync.c\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n"
    },
    {
      "commit": "c35a56a090eacefca07afeb994029b57d8dd8025",
      "tree": "2a42c07c270b07725d9798bc89bc9aa0aaf2c184",
      "parents": [
        "c445e3e0a5c2804524dec6e55f66d63f6bc5bc3e"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sun May 16 05:00:00 2010 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sun May 16 05:00:00 2010 -0400"
      },
      "message": "jbd2: Improve scalability by not taking j_state_lock in jbd2_journal_stop()\n\nOne of the most contended locks in the jbd2 layer is j_state_lock when\nrunning dbench.  This is especially true if using the real-time kernel\nwith its \"sleeping spinlocks\" patch that replaces spinlocks with\npriority inheriting mutexes --- but it also shows up on large SMP\nbenchmarks.\n\nThanks to John Stultz for pointing this out.\n\nReviewed by Mingming Cao and Jan Kara.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "8ac97b74bca1fc8a63b28cc6121519d1cfa2af99",
      "tree": "04f00eada6c77edd95b6a56446e4a330266274e5",
      "parents": [
        "c2d45b4da042720ae94648b417d0e051742441d4"
      ],
      "author": {
        "name": "Bill Pemberton",
        "email": "wfp5p@virginia.edu",
        "time": "Fri Apr 30 09:34:31 2010 -0400"
      },
      "committer": {
        "name": "Jiri Kosina",
        "email": "jkosina@suse.cz",
        "time": "Tue May 11 10:04:36 2010 +0200"
      },
      "message": "jbd2: use NULL instead of 0 when pointer is needed\n\nFixes sparse warning:\n\nfs/jbd2/journal.c:1892:9: warning: Using plain integer as NULL pointer\n\nSigned-off-by: Bill Pemberton \u003cwfp5p@virginia.edu\u003e\nCC: linux-ext4@vger.kernel.org\nSigned-off-by: Jiri Kosina \u003cjkosina@suse.cz\u003e\n"
    },
    {
      "commit": "fbd9b09a177a481eda256447c881f014f29034fe",
      "tree": "ef7e213045382f82a1e3e3cf134d196a1045dd7a",
      "parents": [
        "6b4517a7913a09d3259bb1d21c9cb300f12294bd"
      ],
      "author": {
        "name": "Dmitry Monakhov",
        "email": "dmonakhov@openvz.org",
        "time": "Wed Apr 28 17:55:06 2010 +0400"
      },
      "committer": {
        "name": "Jens Axboe",
        "email": "jens.axboe@oracle.com",
        "time": "Wed Apr 28 19:47:36 2010 +0200"
      },
      "message": "blkdev: generalize flags for blkdev_issue_fn functions\n\nThe patch just convert all blkdev_issue_xxx function to common\nset of flags. Wait/allocation semantics preserved.\n\nSigned-off-by: Dmitry Monakhov \u003cdmonakhov@openvz.org\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n"
    },
    {
      "commit": "5a0e3ad6af8660be21ca98a971cd00f331318c05",
      "tree": "5bfb7be11a03176a87296a43ac6647975c00a1d1",
      "parents": [
        "ed391f4ebf8f701d3566423ce8f17e614cde9806"
      ],
      "author": {
        "name": "Tejun Heo",
        "email": "tj@kernel.org",
        "time": "Wed Mar 24 17:04:11 2010 +0900"
      },
      "committer": {
        "name": "Tejun Heo",
        "email": "tj@kernel.org",
        "time": "Tue Mar 30 22:02:32 2010 +0900"
      },
      "message": "include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h\n\npercpu.h is included by sched.h and module.h and thus ends up being\nincluded when building most .c files.  percpu.h includes slab.h which\nin turn includes gfp.h making everything defined by the two files\nuniversally available and complicating inclusion dependencies.\n\npercpu.h -\u003e slab.h dependency is about to be removed.  Prepare for\nthis change by updating users of gfp and slab facilities include those\nheaders directly instead of assuming availability.  As this conversion\nneeds to touch large number of source files, the following script is\nused as the basis of conversion.\n\n  http://userweb.kernel.org/~tj/misc/slabh-sweep.py\n\nThe script does the followings.\n\n* Scan files for gfp and slab usages and update includes such that\n  only the necessary includes are there.  ie. if only gfp is used,\n  gfp.h, if slab is used, slab.h.\n\n* When the script inserts a new include, it looks at the include\n  blocks and try to put the new include such that its order conforms\n  to its surrounding.  It\u0027s put in the include block which contains\n  core kernel includes, in the same order that the rest are ordered -\n  alphabetical, Christmas tree, rev-Xmas-tree or at the end if there\n  doesn\u0027t seem to be any matching order.\n\n* If the script can\u0027t find a place to put a new include (mostly\n  because the file doesn\u0027t have fitting include block), it prints out\n  an error message indicating which .h file needs to be added to the\n  file.\n\nThe conversion was done in the following steps.\n\n1. The initial automatic conversion of all .c files updated slightly\n   over 4000 files, deleting around 700 includes and adding ~480 gfp.h\n   and ~3000 slab.h inclusions.  The script emitted errors for ~400\n   files.\n\n2. Each error was manually checked.  Some didn\u0027t need the inclusion,\n   some needed manual addition while adding it to implementation .h or\n   embedding .c file was more appropriate for others.  This step added\n   inclusions to around 150 files.\n\n3. The script was run again and the output was compared to the edits\n   from #2 to make sure no file was left behind.\n\n4. Several build tests were done and a couple of problems were fixed.\n   e.g. lib/decompress_*.c used malloc/free() wrappers around slab\n   APIs requiring slab.h to be added manually.\n\n5. The script was run on all .h files but without automatically\n   editing them as sprinkling gfp.h and slab.h inclusions around .h\n   files could easily lead to inclusion dependency hell.  Most gfp.h\n   inclusion directives were ignored as stuff from gfp.h was usually\n   wildly available and often used in preprocessor macros.  Each\n   slab.h inclusion directive was examined and added manually as\n   necessary.\n\n6. percpu.h was updated not to include slab.h.\n\n7. Build test were done on the following configurations and failures\n   were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my\n   distributed build env didn\u0027t work with gcov compiles) and a few\n   more options had to be turned off depending on archs to make things\n   build (like ipr on powerpc/64 which failed due to missing writeq).\n\n   * x86 and x86_64 UP and SMP allmodconfig and a custom test config.\n   * powerpc and powerpc64 SMP allmodconfig\n   * sparc and sparc64 SMP allmodconfig\n   * ia64 SMP allmodconfig\n   * s390 SMP allmodconfig\n   * alpha SMP allmodconfig\n   * um on x86_64 SMP allmodconfig\n\n8. percpu.h modifications were reverted so that it could be applied as\n   a separate patch and serve as bisection point.\n\nGiven the fact that I had only a couple of failures from tests on step\n6, I\u0027m fairly confident about the coverage of this conversion patch.\nIf there is a breakage, it\u0027s likely to be something in one of the arch\nheaders which should be easily discoverable easily on most builds of\nthe specific arch.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nGuess-its-ok-by: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nCc: Ingo Molnar \u003cmingo@redhat.com\u003e\nCc: Lee Schermerhorn \u003cLee.Schermerhorn@hp.com\u003e\n"
    },
    {
      "commit": "23e2af3518facab6838d7aac1f46fbd7a5a290ce",
      "tree": "97a45b7d17bd0f4f5c8a65a9583b66886351cf7a",
      "parents": [
        "56c50f11f4d11cb14d78fe52330efb69d219c62f"
      ],
      "author": {
        "name": "dingdinghua",
        "email": "dingdinghua@nrchpc.ac.cn",
        "time": "Wed Feb 24 12:11:20 2010 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Wed Feb 24 12:11:20 2010 -0500"
      },
      "message": "jbd2: clean up an assertion in jbd2_journal_commit_transaction()\n\ncommit_transaction has the same value as journal-\u003ej_running_transaction,\nso we can simplify the assert statement.\n\nSigned-off-by: dingdinghua \u003cdingdinghua@nrchpc.ac.cn\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "ba869023eac8354b17acdcff82b851ea8e7b1809",
      "tree": "c461ae44ed5f9fc45573c14c74548f3f50109547",
      "parents": [
        "aca92ff6f57c000d1b4523e383c8bd6b8269b8b1"
      ],
      "author": {
        "name": "dingdinghua",
        "email": "dingdinghua@nrchpc.ac.cn",
        "time": "Mon Feb 15 16:35:42 2010 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Feb 15 16:35:42 2010 -0500"
      },
      "message": "jbd2: delay discarding buffers in journal_unmap_buffer\n\nDelay discarding buffers in journal_unmap_buffer until\nwe know that \"add to orphan\" operation has definitely been\ncommitted, otherwise the log space of committing transation\nmay be freed and reused before truncate get committed, updates\nmay get lost if crash happens.\n\nSigned-off-by: dingdinghua \u003cdingdinghua@nrchpc.ac.cn\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "d2eecb03936878ec574ade5532fa83df7d75dde7",
      "tree": "f7ef8bd29096ba6c073308cd3b674857be1545d4",
      "parents": [
        "f8ec9d6837241865cf99bed97bb99f4399fd5a03"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Dec 07 10:36:20 2009 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Dec 07 10:36:20 2009 -0500"
      },
      "message": "ext4: Use slab allocator for sub-page sized allocations\n\nNow that the SLUB seems to be fixed so that it respects the requested\nalignment, use kmem_cache_alloc() to allocator if the block size of\nthe buffer heads to be allocated is less than the page size.\nPreviously, we were using 16k page on a Power system for each buffer,\neven when the file system was using 1k or 4k block size.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n\n\n"
    },
    {
      "commit": "71f2be213a0009098819e5c04f75ff19f84f2122",
      "tree": "af3dcbb307a8cccc24670945c14c4b3d32bbd2c0",
      "parents": [
        "1f2acb6017d8528135ec3b01ab7cd2be6ea0630b"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Wed Dec 23 07:45:44 2009 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Wed Dec 23 07:45:44 2009 -0500"
      },
      "message": "ext4: Add new tracepoint for jbd2_cleanup_journal_tail\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "3ebfdf885acedafcadceb4007e77438479094135",
      "tree": "1bd9a4b223aa22e201af9a87868a33ec53605daf",
      "parents": [
        "c8afb44682fcef6273e8b8eb19fab13ddd05b386"
      ],
      "author": {
        "name": "Andrew Morton",
        "email": "akpm@linux-foundation.org",
        "time": "Wed Dec 23 08:05:15 2009 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Wed Dec 23 08:05:15 2009 -0500"
      },
      "message": "jbd2: don\u0027t use __GFP_NOFAIL in journal_init_common()\n\nIt triggers the warning in get_page_from_freelist(), and it isn\u0027t\nappropriate to use __GFP_NOFAIL here anyway.\n\nAddresses http://bugzilla.kernel.org/show_bug.cgi?id\u003d14843\n\nReported-by: Christian Casteyde \u003ccasteyde.christian@free.fr\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "cc3e1bea5d87635c519da657303690f5538bb4eb",
      "tree": "727b348d0389a2fe6618fb224fe1d81d207668c4",
      "parents": [
        "034fb4c95fc0fed4ec4a50778127b92c6f2aec01"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Wed Dec 23 06:52:08 2009 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Wed Dec 23 06:52:08 2009 -0500"
      },
      "message": "ext4, jbd2: Add barriers for file systems with exernal journals\n\nThis is a bit complicated because we are trying to optimize when we\nsend barriers to the fs data disk.  We could just throw in an extra\nbarrier to the data disk whenever we send a barrier to the journal\ndisk, but that\u0027s not always strictly necessary.\n\nWe only need to send a barrier during a commit when there are data\nblocks which are must be written out due to an inode written in\nordered mode, or if fsync() depends on the commit to force data blocks\nto disk.  Finally, before we drop transactions from the beginning of\nthe journal during a checkpoint operation, we need to guarantee that\nany blocks that were flushed out to the data disk are firmly on the\nrust platter before we drop the transaction from the journal.\n\nThanks to Oleg Drokin for pointing out this flaw in ext3/ext4.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n\n"
    },
    {
      "commit": "765f8361902d015c864d5e62019b2f139452d7ef",
      "tree": "f872385ae91fc926b036038e583a7f72ab5f3459",
      "parents": [
        "39bc680a8160bb9d6743f7873b535d553ff61058"
      ],
      "author": {
        "name": "Yin Kangkai",
        "email": "kangkai.yin@intel.com",
        "time": "Tue Dec 15 14:48:25 2009 -0800"
      },
      "committer": {
        "name": "Jan Kara",
        "email": "jack@suse.cz",
        "time": "Wed Dec 23 13:44:13 2009 +0100"
      },
      "message": "jbd: jbd-debug and jbd2-debug should be writable\n\njbd-debug and jbd2-debug is currently read-only (S_IRUGO), which is not\ncorrect. Make it writable so that we can start debuging.\n\nSigned-off-by: Yin Kangkai \u003ckangkai.yin@intel.com\u003e\nReviewed-by: Aneesh Kumar K.V \u003caneesh.kumar@linux.vnet.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Jan Kara \u003cjack@suse.cz\u003e\n"
    },
    {
      "commit": "b6e3224fb20954f155e41ec5709b2ab70b50ae2d",
      "tree": "96302d1b564c879779b9cc5d7aae7c3c4471ed14",
      "parents": [
        "a2770d86b33024f71df269fde2de096df89d6a48"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Dec 17 13:23:24 2009 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Dec 17 13:23:24 2009 -0800"
      },
      "message": "Revert \"task_struct: make journal_info conditional\"\n\nThis reverts commit e4c570c4cb7a95dbfafa3d016d2739bf3fdfe319, as\nrequested by Alexey:\n\n \"I think I gave a good enough arguments to not merge it.\n  To iterate:\n   * patch makes impossible to start using ext3 on EXT3_FS\u003dn kernels\n     without reboot.\n   * this is done only for one pointer on task_struct\"\n\n  None of config options which define task_struct are tristate directly\n  or effectively.\"\n\nRequested-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nAcked-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "e4c570c4cb7a95dbfafa3d016d2739bf3fdfe319",
      "tree": "ce2be0a79fa2e8d8271426f0fc27b25e83c050b4",
      "parents": [
        "8420e7efa1cf155765c6d77c91d3e3547c7aa557"
      ],
      "author": {
        "name": "Hiroshi Shimamoto",
        "email": "h-shimamoto@ct.jp.nec.com",
        "time": "Mon Dec 14 18:00:26 2009 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Tue Dec 15 08:53:27 2009 -0800"
      },
      "message": "task_struct: make journal_info conditional\n\njournal_info in task_struct is used in journaling file system only.  So\nintroduce CONFIG_FS_JOURNAL_INFO and make it conditional.\n\nSigned-off-by: Hiroshi Shimamoto \u003ch-shimamoto@ct.jp.nec.com\u003e\nCc: Chris Mason \u003cchris.mason@oracle.com\u003e\nCc: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\nCc: Steven Whitehouse \u003cswhiteho@redhat.com\u003e\nCc: KONISHI Ryusuke \u003ckonishi.ryusuke@lab.ntt.co.jp\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "3126c136bc30225d7a43af741778aa50e95e467a",
      "tree": "71e6f0de6e1f4cde200dd632da4d2f61180289bf",
      "parents": [
        "f4d544ee5720d336a8c64f9fd33efb888c302309",
        "8e0eb4011bd73d5f91b215b532f74eef478ef795"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Fri Dec 11 15:31:13 2009 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Fri Dec 11 15:31:13 2009 -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: (21 commits)\n  ext3: PTR_ERR return of wrong pointer in setup_new_group_blocks()\n  ext3: Fix data / filesystem corruption when write fails to copy data\n  ext4: Support for 64-bit quota format\n  ext3: Support for vfsv1 quota format\n  quota: Implement quota format with 64-bit space and inode limits\n  quota: Move definition of QFMT_OCFS2 to linux/quota.h\n  ext2: fix comment in ext2_find_entry about return values\n  ext3: Unify log messages in ext3\n  ext2: clear uptodate flag on super block I/O error\n  ext2: Unify log messages in ext2\n  ext3: make \"norecovery\" an alias for \"noload\"\n  ext3: Don\u0027t update the superblock in ext3_statfs()\n  ext3: journal all modifications in ext3_xattr_set_handle\n  ext2: Explicitly assign values to on-disk enum of filetypes\n  quota: Fix WARN_ON in lookup_one_len\n  const: struct quota_format_ops\n  ubifs: remove manual O_SYNC handling\n  afs: remove manual O_SYNC handling\n  kill wait_on_page_writeback_range\n  vfs: Implement proper O_SYNC semantics\n  ...\n"
    },
    {
      "commit": "94004ed726f38a841cc51f97c4a3f9eda9fbd0d9",
      "tree": "786689e9fc9e686a5b54c1a1b1efcbb7d043b5ab",
      "parents": [
        "6b2f3d1f769be5779b479c37800229d9a4809fc3"
      ],
      "author": {
        "name": "Christoph Hellwig",
        "email": "hch@lst.de",
        "time": "Wed Sep 30 22:16:33 2009 +0200"
      },
      "committer": {
        "name": "Jan Kara",
        "email": "jack@suse.cz",
        "time": "Thu Dec 10 15:02:50 2009 +0100"
      },
      "message": "kill wait_on_page_writeback_range\n\nAll callers really want the more logical filemap_fdatawait_range interface,\nso convert them to use it and merge wait_on_page_writeback_range into\nfilemap_fdatawait_range.\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Jan Kara \u003cjack@suse.cz\u003e\n"
    },
    {
      "commit": "3b799d15f2622c44bae93961892d90ab012ea2be",
      "tree": "200eda7f3615d354aba02b9f5183524d172006e5",
      "parents": [
        "4a58579b9e4e2a35d57e6c9c8483e52f6f1b7fd6"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Wed Dec 09 20:42:53 2009 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Wed Dec 09 20:42:53 2009 -0500"
      },
      "message": "jbd2: Export jbd2_log_start_commit to fix ext4 build\n    \n    This fixes:\n    ERROR: \"jbd2_log_start_commit\" [fs/ext4/ext4.ko] undefined!\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "e6ec116b67f46e0e7808276476554727b2e6240b",
      "tree": "ef80d636a8d45ff7779532e493916e2873adf390",
      "parents": [
        "3f0ca309858ee186435c608ee9eaafd1c8dcb53a"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Tue Dec 01 09:04:42 2009 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Tue Dec 01 09:04:42 2009 -0500"
      },
      "message": "jbd2: Add ENOMEM checking in and for jbd2_journal_write_metadata_buffer()\n\nOOM happens.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "e6a47428de84e19fda52f21ab73fde2906c40d09",
      "tree": "7e6b7974861793f767a6e1cc73047d51197e29df",
      "parents": [
        "567f3e9a70d71e5c9be03701b8578be77857293b"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sun Nov 15 15:31:37 2009 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sun Nov 15 15:31:37 2009 -0500"
      },
      "message": "jbd2: don\u0027t wipe the journal on a failed journal checksum\n\nIf there is a failed journal checksum, don\u0027t reset the journal.  This\nallows for userspace programs to decide how to recover from this\nsituation.  It may be that ignoring the journal checksum failure might\nbe a better way of recovering the file system.  Once we add per-block\nchecksums, we can definitely do better.  Until then, a system\nadministrator can try backing up the file system image (or taking a\nsnapshot) and and trying to determine experimentally whether ignoring\nthe checksum failure or aborting the journal replay results in less\ndata loss.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\nCc: stable@kernel.org\n"
    },
    {
      "commit": "7b02bec07efe1d6c7d48c786e0c1a38d28fe7245",
      "tree": "cb93e26c107052be83ba52a74652c44c3ba199da",
      "parents": [
        "fe8bc91c4c30122b357d197117705cfd4fabaf28"
      ],
      "author": {
        "name": "Tao Ma",
        "email": "tao.ma@oracle.com",
        "time": "Tue Nov 10 17:13:22 2009 +0800"
      },
      "committer": {
        "name": "Jan Kara",
        "email": "jack@suse.cz",
        "time": "Wed Nov 11 15:24:14 2009 +0100"
      },
      "message": "JBD/JBD2: free j_wbuf if journal init fails.\n\nIf journal init fails, we need to free j_wbuf.\n\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: Jan Kara \u003cjack@suse.cz\u003e\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\nSigned-off-by: Jan Kara \u003cjack@suse.cz\u003e\n"
    },
    {
      "commit": "828c09509b9695271bcbdc53e9fc9a6a737148d2",
      "tree": "072ffad6f02db7bf4095e07e2b90247cfa042998",
      "parents": [
        "1c4115e595dec42aa0e81ba47ef46e35b34ed428"
      ],
      "author": {
        "name": "Alexey Dobriyan",
        "email": "adobriyan@gmail.com",
        "time": "Thu Oct 01 15:43:56 2009 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Oct 01 16:11:11 2009 -0700"
      },
      "message": "const: constify remaining file_operations\n\n[akpm@linux-foundation.org: fix KVM]\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nAcked-by: Mike Frysinger \u003cvapier@gentoo.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "bf6993276f74d46776f35c45ddef29b981b1d1c6",
      "tree": "5c9cb128fed29a83add1932b12443edaa6fd06cc",
      "parents": [
        "296c355cd6443d89fa251885a8d78778fe111dc4"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Wed Sep 30 00:32:06 2009 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Wed Sep 30 00:32:06 2009 -0400"
      },
      "message": "jbd2: Use tracepoints for history file\n\nThe /proc/fs/jbd2/\u003cdev\u003e/history was maintained manually; by using\ntracepoints, we can get all of the existing functionality of the /proc\nfile plus extra capabilities thanks to the ftrace infrastructure.  We\nsave memory as a bonus.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "90576c0b9a0b5323fc4bd7f23f49be0d234f36d1",
      "tree": "d4a1ab6f923f1c9c7c87f13a828db72c1f4412c1",
      "parents": [
        "d3d1faf6a74496ea4435fd057c6a2cad49f3e523"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Tue Sep 29 15:51:30 2009 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Tue Sep 29 15:51:30 2009 -0400"
      },
      "message": "ext4, jbd2: Drop unneeded printks at mount and unmount time\n\nThere are a number of kernel printk\u0027s which are printed when an ext4\nfilesystem is mounted and unmounted.  Disable them to economize space\nin the system logs.  In addition, disabling the mballoc stats by\ndefault saves a number of unneeded atomic operations for every block\nallocation or deallocation.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n\n"
    },
    {
      "commit": "88e9d34c727883d7d6f02cf1475b3ec98b8480c7",
      "tree": "475f544536d52739e0929e7727cab5124e855a06",
      "parents": [
        "b7ed698cc9d556306a4088c238e2ea9311ea2cb3"
      ],
      "author": {
        "name": "James Morris",
        "email": "jmorris@namei.org",
        "time": "Tue Sep 22 16:43:43 2009 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Sep 23 07:39:29 2009 -0700"
      },
      "message": "seq_file: constify seq_operations\n\nMake all seq_operations structs const, to help mitigate against\nrevectoring user-triggerable function pointers.\n\nThis is derived from the grsecurity patch, although generated from scratch\nbecause it\u0027s simpler than extracting the changes from there.\n\nSigned-off-by: James Morris \u003cjmorris@namei.org\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nAcked-by: Casey Schaufler \u003ccasey@schaufler-ca.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "0e3d2a6313d03413d93327202a60256d1d726fdc",
      "tree": "3b4165751568e4332edad89a82e76bc6708c8ccd",
      "parents": [
        "71290b368ad5e1e0b0b300c9d5638490a9fd1a2d"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Fri Sep 11 09:30:12 2009 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Fri Sep 11 09:30:12 2009 -0400"
      },
      "message": "ext4: Fix async commit mode to be safe by using a barrier\n\nPreviously the journal_async_commit mount option was equivalent to\nusing barrier\u003d0 (and just as unsafe).  This patch fixes it so that we\neliminate the barrier before the commit block (by not using ordered\nmode), and explicitly issuing an empty barrier bio after writing the\ncommit block.  Because of the journal checksum, it is safe to do this;\nif the journal blocks are not all written before a power failure, the\nchecksum in the commit block will prevent the last transaction from\nbeing replayed.\n\nUsing the fs_mark benchmark, using journal_async_commit shows a 50%\nimprovement:\n\nFSUse%        Count         Size    Files/sec     App Overhead\n     8         1000        10240         30.5            28242\n\nvs.\n\nFSUse%        Count         Size    Files/sec     App Overhead\n     8         1000        10240         45.8            28620\n\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "9599b0e597d810be9b8f759ea6e9619c4f983c5e",
      "tree": "101bb8b6987cc9c8dddaaac9e7e94e19bbc97f25",
      "parents": [
        "553f9008939638335836eec834f4dea310c17eae"
      ],
      "author": {
        "name": "Jan Kara",
        "email": "jack@suse.cz",
        "time": "Mon Aug 17 21:23:17 2009 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Aug 17 21:23:17 2009 -0400"
      },
      "message": "jbd2: Annotate transaction start also for jbd2_journal_restart()\n\nlockdep annotation for a transaction start has been at the end of\njbd2_journal_start(). But a transaction is also started from\njbd2_journal_restart(). Move the lockdep annotation to start_this_handle()\nwhich covers both cases.\n\nSigned-off-by: Jan Kara \u003cjack@suse.cz\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "b1f485f20eb9b02cc7d2009556287f3939d480cc",
      "tree": "08406f7f1ea6ec37fce67e5e592c657a00084f3c",
      "parents": [
        "c333e073b7bf76dc819a6b4ce6bef88ee5fa5e50"
      ],
      "author": {
        "name": "Andreas Dilger",
        "email": "adilger@sun.com",
        "time": "Mon Aug 10 22:51:53 2009 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Aug 10 22:51:53 2009 -0400"
      },
      "message": "jbd2: round commit timer up to avoid uncommitted transaction\n\nfix jiffie rounding in jbd commit timer setup code.  Rounding down\ncould cause the timer to be fired before the corresponding transaction\nhas expired.  That transaction can stay not committed forever if no\nnew transaction is created or expicit sync/umount happens.\n\nSigned-off-by: Alex Zhuravlev (Tomas) \u003calex.zhuravlev@sun.com\u003e\nSigned-off-by: Andreas Dilger \u003cadilger@sun.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "f6f50e28f0cb8d7bcdfaacc83129f005dede11b1",
      "tree": "f7a0ee7cc686c0687cd4020185265ae0cd29471b",
      "parents": [
        "78f1ddbb498283c2445c11b0dfa666424c301803"
      ],
      "author": {
        "name": "Jan Kara",
        "email": "jack@suse.cz",
        "time": "Fri Jul 17 10:40:01 2009 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Fri Jul 17 10:40:01 2009 -0400"
      },
      "message": "jbd2: Fail to load a journal if it is too short\n\nDue to on disk corruption, it can happen that journal is too short. Fail\nto load it in such case so that we don\u0027t oops somewhere later.\n\nSigned-off-by: Jan Kara \u003cjack@suse.cz\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "1fe06ad89255c211fe100d7f690d10b161398df8",
      "tree": "826d32bf081a6729aeaa08fe42422e49a9b86f6f",
      "parents": [
        "2c96ce9f2084c1e04d02883e622f74a537a63aea"
      ],
      "author": {
        "name": "Jens Axboe",
        "email": "jens.axboe@oracle.com",
        "time": "Tue Sep 15 15:10:20 2009 +0200"
      },
      "committer": {
        "name": "Jens Axboe",
        "email": "jens.axboe@oracle.com",
        "time": "Wed Sep 16 15:16:18 2009 +0200"
      },
      "message": "writeback: get rid of wbc-\u003efor_writepages\n\nIt\u0027s only set, it\u0027s never checked. Kill it.\n\nAcked-by: Jan Kara \u003cjack@suse.cz\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n"
    },
    {
      "commit": "96577c43827697ca1af5982fa256a34786d0c720",
      "tree": "aa752d4685f5702976683401dadb7557f161d62d",
      "parents": [
        "833576b362e15c38be3bfe43942cda693e56287c"
      ],
      "author": {
        "name": "dingdinghua",
        "email": "dingdinghua85@gmail.com",
        "time": "Mon Jul 13 17:55:35 2009 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Jul 13 17:55:35 2009 -0400"
      },
      "message": "jbd2: fix race between write_metadata_buffer and get_write_access\n\nThe function jbd2_journal_write_metadata_buffer() calls\njbd_unlock_bh_state(bh_in) too early; this could potentially allow\nanother thread to call get_write_access on the buffer head, modify the\ndata, and dirty it, and allowing the wrong data to be written into the\njournal.  Fortunately, if we lose this race, the only time this will\nactually cause filesystem corruption is if there is a system crash or\nother unclean shutdown of the system before the next commit can take\nplace.\n\nSigned-off-by: dingdinghua \u003cdingdinghua85@gmail.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "f91d1d04171026e56c7e343ee3cdcc801dd85cfb",
      "tree": "282341868e06cb09ecd6c0838ea027feec514c2c",
      "parents": [
        "3e03f9ca6a2599db1823bb0ea24e0845219a0e69"
      ],
      "author": {
        "name": "Jan Kara",
        "email": "jack@suse.cz",
        "time": "Mon Jul 13 16:16:20 2009 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Jul 13 16:16:20 2009 -0400"
      },
      "message": "jbd2: Fix a race between checkpointing code and journal_get_write_access()\n\nThe following race can happen:\n\n CPU1                          CPU2\n                               checkpointing code checks the buffer, adds\n                                 it to an array for writeback\n do_get_write_access()\n ...\n lock_buffer()\n unlock_buffer()\n                               flush_batch() submits the buffer for IO\n __jbd2_journal_file_buffer()\n\nSo a buffer under writeout is returned from\ndo_get_write_access(). Since the filesystem code relies on the fact\nthat journaled buffers cannot be written out, it does not take the\nbuffer lock and so it can modify buffer while it is under\nwriteout. That can lead to a filesystem corruption if we crash at the\nright moment.\n\nWe fix the problem by clearing the buffer dirty bit under buffer_lock\neven if the buffer is on BJ_None list. Actually, we clear the dirty\nbit regardless the list the buffer is in and warn about the fact if\nthe buffer is already journalled.\n\nThanks for spotting the problem goes to dingdinghua \u003cdingdinghua85@gmail.com\u003e.\n\nReported-by: dingdinghua \u003cdingdinghua85@gmail.com\u003e\nSigned-off-by: Jan Kara \u003cjack@suse.cz\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "b574480507460b8e31b8d38dd4642219fc3b9a10",
      "tree": "666d731d897ce463fcc6ccf46e82f200ae18e589",
      "parents": [
        "627ad9fd0733f0a31a266ff98a4a933eee710f0b"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sat Jun 20 23:34:44 2009 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sat Jun 20 23:34:44 2009 -0400"
      },
      "message": "jbd2: Remove GFP_ATOMIC kmalloc from inside spinlock critical region\n\nFix jbd2_dev_to_name(), a function used when pretty-printting jbd2 and\next4 tracepoints.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "536fc240e7147858255bdb08e7a999a3351a9fb4",
      "tree": "16bf7a9e1bf506c1944d1e2e13a18a2b3c9bab8f",
      "parents": [
        "4159175058987cb68aefd0e9eec2598b795363b4"
      ],
      "author": {
        "name": "Hisashi Hifumi",
        "email": "hifumi.hisashi@oss.ntt.co.jp",
        "time": "Wed Jun 17 20:08:51 2009 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Wed Jun 17 20:08:51 2009 -0400"
      },
      "message": "jbd2: clean up jbd2_journal_try_to_free_buffers()\n\nThis patch reverts 3f31fddf, which is no longer needed because if a\nrace between freeing buffer and committing transaction functionality\noccurs and dio gets error, currently dio falls back to buffered IO due\nto the commit 6ccfa806.\n\nSigned-off-by: Hisashi Hifumi \u003chifumi.hisashi@oss.ntt.co.jp\u003e\nCc: Mingming Cao \u003ccmm@us.ibm.com\u003e\nAcked-by: Jan Kara \u003cjack@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "879c5e6b7cb4c689d08ca9b2e353d8ab3dc425d5",
      "tree": "8b58103d6773a47d6fc29b47024e8b4092487c88",
      "parents": [
        "65795efbd380a832ae508b04dba8f8e53f0b84d9"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Wed Jun 17 11:47:48 2009 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Wed Jun 17 11:47:48 2009 -0400"
      },
      "message": "jbd2: convert instrumentation from markers to tracepoints\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "bfcd3555af478dbf04c87adc9bb1a739d0a6ccff",
      "tree": "8b44c6675886186c91fb1d5ab414f48298526c1a",
      "parents": [
        "88b6edd17c62b7d346d21f4087893ce7d4ef828a"
      ],
      "author": {
        "name": "Alberto Bertogli",
        "email": "albertito@blitiri.com.ar",
        "time": "Tue Jun 09 00:06:20 2009 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Tue Jun 09 00:06:20 2009 -0400"
      },
      "message": "jbd2: Fix minor typos in comments in fs/jbd2/journal.c\n\nSigned-off-by: Alberto Bertogli \u003calbertito@blitiri.com.ar\u003e\nSigned-off-by: Theodore Ts\u0027o \u003ctytso@mit.edu\u003e\n\n"
    },
    {
      "commit": "67c457a8c378a006a34d92f9bd3078a80a92f250",
      "tree": "63028e792b62fa42724507b86acded4da356c185",
      "parents": [
        "6b82f3cb2d480b7714eb0ff61aee99c22160389e"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Tue Apr 14 07:50:56 2009 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Tue Apr 14 07:50:56 2009 -0400"
      },
      "message": "jbd2: use SWRITE_SYNC_PLUG when writing synchronous revoke records\n\nThe revoke records must be written using the same way as the rest of\nthe blocks during the commit process; that is, either marked as\nsynchronous writes or as asynchornous writes.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n\n"
    },
    {
      "commit": "4194b1eaf18ddc3eee9597e8800b6d2ffdfd3614",
      "tree": "34083152f17c6dbf61729a2194658ebcc041a62c",
      "parents": [
        "6c4bac6b3351fd278dc3537dae42f88f733ff12e"
      ],
      "author": {
        "name": "Jens Axboe",
        "email": "jens.axboe@oracle.com",
        "time": "Mon Apr 06 14:48:05 2009 +0200"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Mon Apr 06 08:04:54 2009 -0700"
      },
      "message": "jbd2: use WRITE_SYNC_PLUG instead of WRITE_SYNC\n\nWhen you are going to be submitting several sync writes, we want to\ngive the IO scheduler a chance to merge some of them. Instead of\nusing the implicitly unplugging WRITE_SYNC variant, use WRITE_SYNC_PLUG\nand rely on sync_buffer() doing the unplug when someone does a\nwait_on_buffer()/lock_buffer().\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "86db97c87f744364d5889ca8a4134ca2048b8f83",
      "tree": "420c3c60be2c1a7e644fe4082226d79f31d8b911",
      "parents": [
        "cc0fb9ad7dbc5a149f4957a0dd6d65881d3d385b"
      ],
      "author": {
        "name": "Jan Kara",
        "email": "jack@suse.cz",
        "time": "Fri Mar 27 17:20:40 2009 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Fri Mar 27 17:20:40 2009 -0400"
      },
      "message": "jbd2: Update locking coments\n\nUpdate information about locking in JBD2 revoke code. Inconsistency in\ncomments found by Lin Tan \u003ctammy000@gmail.com\u003e.\n\nCC: Lin Tan \u003ctammy000@gmail.com\u003e.\nSigned-off-by: Jan Kara \u003cjack@suse.cz\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "7058548cd50e5bda8db086bb2e5c1d82f746d047",
      "tree": "acd095e9f13fcb10deab00e5da5c22d35fda646d",
      "parents": [
        "afd4672dc7610b7feef5190168aa917cc2e417e4"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Wed Mar 25 23:35:46 2009 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Wed Mar 25 23:35:46 2009 -0400"
      },
      "message": "ext4: Use WRITE_SYNC for commits which are caused by fsync()\n\nIf a commit is triggered by fsync(), set a flag indicating the journal\nblocks associated with the transaction should be flushed out using\nWRITE_SYNC.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "7f5aa215088b817add9c71914b83650bdd49f8a9",
      "tree": "9b811d1f0b41a2738fc68654ae605bf5d8cf2a72",
      "parents": [
        "9eddacf9e9c03578ef2c07c9534423e823d677f8"
      ],
      "author": {
        "name": "Jan Kara",
        "email": "jack@suse.cz",
        "time": "Tue Feb 10 11:15:34 2009 -0500"
      },
      "committer": {
        "name": "Theodore Tso",
        "email": "tytso@mit.edu",
        "time": "Tue Feb 10 11:15:34 2009 -0500"
      },
      "message": "jbd2: Avoid possible NULL dereference in jbd2_journal_begin_ordered_truncate()\n\nIf we race with commit code setting i_transaction to NULL, we could\npossibly dereference it.  Proper locking requires the journal pointer\n(to access journal-\u003ej_list_lock), which we don\u0027t have.  So we have to\nchange the prototype of the function so that filesystem passes us the\njournal pointer.  Also add a more detailed comment about why the\nfunction jbd2_journal_begin_ordered_truncate() does what it does and\nhow it should be used.\n\nThanks to Dan Carpenter \u003cerror27@gmail.com\u003e for pointing to the\nsuspitious code.\n\nSigned-off-by: Jan Kara \u003cjack@suse.cz\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\nAcked-by: Joel Becker \u003cjoel.becker@oracle.com\u003e\nCC: linux-ext4@vger.kernel.org\nCC: ocfs2-devel@oss.oracle.com\nCC: mfasheh@suse.de\nCC: Dan Carpenter \u003cerror27@gmail.com\u003e\n"
    },
    {
      "commit": "c88ccea3143975294f5a52097546bcbb75975f52",
      "tree": "b8aad20536941279a7b9bd80dc00729d6ac92da9",
      "parents": [
        "d2f8d7ee1a9b4650b4e43325b321801264f7c37a"
      ],
      "author": {
        "name": "Jan Kara",
        "email": "jack@suse.cz",
        "time": "Tue Feb 10 11:27:46 2009 -0500"
      },
      "committer": {
        "name": "Theodore Tso",
        "email": "tytso@mit.edu",
        "time": "Tue Feb 10 11:27:46 2009 -0500"
      },
      "message": "jbd2: Fix return value of jbd2_journal_start_commit()\n\nThe function jbd2_journal_start_commit() returns 1 if either a\ntransaction is committing or the function has queued a transaction\ncommit. But it returns 0 if we raced with somebody queueing the\ntransaction commit as well. This resulted in ext4_sync_fs() not\nfunctioning correctly (description from Arthur Jones): \n\n   In the case of a data\u003dordered umount with pending long symlinks\n   which are delayed due to a long list of other I/O on the backing\n   block device, this causes the buffer associated with the long\n   symlinks to not be moved to the inode dirty list in the second\n   phase of fsync_super.  Then, before they can be dirtied again,\n   kjournald exits, seeing the UMOUNT flag and the dirty pages are\n   never written to the backing block device, causing long symlink\n   corruption and exposing new or previously freed block data to\n   userspace.\n\nThis can be reproduced with a script created by Eric Sandeen\n\u003csandeen@redhat.com\u003e:\n\n        #!/bin/bash\n\n        umount /mnt/test2\n        mount /dev/sdb4 /mnt/test2\n        rm -f /mnt/test2/*\n        dd if\u003d/dev/zero of\u003d/mnt/test2/bigfile bs\u003d1M count\u003d512\n        touch /mnt/test2/thisisveryveryveryveryveryveryveryveryveryveryveryveryveryveryveryverylongfilename\n        ln -s /mnt/test2/thisisveryveryveryveryveryveryveryveryveryveryveryveryveryveryveryverylongfilename\n        /mnt/test2/link\n        umount /mnt/test2\n        mount /dev/sdb4 /mnt/test2\n        ls /mnt/test2/\n\nThis patch fixes jbd2_journal_start_commit() to always return 1 when\nthere\u0027s a transaction committing or queued for commit.\n\nSigned-off-by: Jan Kara \u003cjack@suse.cz\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\nCC: Eric Sandeen \u003csandeen@redhat.com\u003e\nCC: linux-ext4@vger.kernel.org\n"
    },
    {
      "commit": "c225aa57ff4ffe715df4692676b77c815a337236",
      "tree": "af70801def246873525ca5003b1a91adf91e024b",
      "parents": [
        "18e352e4a73465349711a9324767e1b2453383e2"
      ],
      "author": {
        "name": "Simon Holm Thøgersen",
        "email": "odie@cs.aau.dk",
        "time": "Sun Jan 11 22:34:01 2009 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sun Jan 11 22:34:01 2009 -0500"
      },
      "message": "ext4: fix wrong use of do_div\n\nthe following warning:\n\nfs/jbd2/journal.c: In function ‘jbd2_seq_info_show’:\nfs/jbd2/journal.c:850: warning: format ‘%lu’ expects type ‘long\nunsigned int’, but argument 3 has type ‘uint32_t’\n\nis caused by wrong usage of do_div that modifies the dividend in-place\nand returns the quotient. So not only would an incorrect value be\ndisplayed, but s-\u003ejournal-\u003ej_average_commit_time would also be changed\nto a wrong value!\n\nFix it by using div_u64 instead.\n\nSigned-off-by: Simon Holm Thøgersen \u003codie@cs.aau.dk\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "2150edc6c5cf00f7adb54538b9ea2a3e9cedca3f",
      "tree": "f72a0d85e66f500b4cead348a231e3d3b9f357bc",
      "parents": [
        "cd764695b67386a81964f68e9c66efd9f13f4d29",
        "4b905671d2ea09fd48fed72c581df17e40823f39"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Jan 08 17:14:59 2009 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Jan 08 17:14:59 2009 -0800"
      },
      "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: (57 commits)\n  jbd2: Fix oops in jbd2_journal_init_inode() on corrupted fs\n  ext4: Remove \"extents\" mount option\n  block: Add Kconfig help which notes that ext4 needs CONFIG_LBD\n  ext4: Make printk\u0027s consistently prefixed with \"EXT4-fs: \"\n  ext4: Add sanity checks for the superblock before mounting the filesystem\n  ext4: Add mount option to set kjournald\u0027s I/O priority\n  jbd2: Submit writes to the journal using WRITE_SYNC\n  jbd2: Add pid and journal device name to the \"kjournald2 starting\" message\n  ext4: Add markers for better debuggability\n  ext4: Remove code to create the journal inode\n  ext4: provide function to release metadata pages under memory pressure\n  ext3: provide function to release metadata pages under memory pressure\n  add releasepage hooks to block devices which can be used by file systems\n  ext4: Fix s_dirty_blocks_counter if block allocation failed with nodelalloc\n  ext4: Init the complete page while building buddy cache\n  ext4: Don\u0027t allow new groups to be added during block allocation\n  ext4: mark the blocks/inode bitmap beyond end of group as used\n  ext4: Use new buffer_head flag to check uninit group bitmaps initialization\n  ext4: Fix the race between read_inode_bitmap() and ext4_new_inode()\n  ext4: code cleanup\n  ...\n"
    },
    {
      "commit": "4b905671d2ea09fd48fed72c581df17e40823f39",
      "tree": "62fcc9de092b2161b449f9205d516cba2e82b0b7",
      "parents": [
        "83982b6f47201c4c7767210d24d7d8c99567a0b3"
      ],
      "author": {
        "name": "Jan Kara",
        "email": "jack@suse.cz",
        "time": "Tue Jan 06 14:53:35 2009 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Tue Jan 06 14:53:35 2009 -0500"
      },
      "message": "jbd2: Fix oops in jbd2_journal_init_inode() on corrupted fs\n\nOn 32-bit system with CONFIG_LBD getblk can fail because provided\nblock number is too big.  Add error checks so we fail gracefully if\ngetblk() returns NULL (which can also happen on memory allocation\nfailures).\n\nThanks to David Maciejak from Fortinet\u0027s FortiGuard Global Security\nResearch Team for reporting this bug.\n\nhttp://bugzilla.kernel.org/show_bug.cgi?id\u003d12370\n\nSigned-off-by: Jan Kara \u003cjack@suse.cz\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\ncc: stable@kernel.org\n"
    },
    {
      "commit": "e06c8227fd94ec181849ba206bf032be31c4295c",
      "tree": "67261cd94aa86dc6112d7de74304c2a1af5b64fb",
      "parents": [
        "754938c142ae0c28360426c43f965ddc5164b21e"
      ],
      "author": {
        "name": "Joel Becker",
        "email": "joel.becker@oracle.com",
        "time": "Thu Sep 11 15:35:47 2008 -0700"
      },
      "committer": {
        "name": "Mark Fasheh",
        "email": "mfasheh@suse.com",
        "time": "Mon Jan 05 08:40:30 2009 -0800"
      },
      "message": "jbd2: Add buffer triggers\n\nFilesystems often to do compute intensive operation on some\nmetadata.  If this operation is repeated many times, it can be very\nexpensive.  It would be much nicer if the operation could be performed\nonce before a buffer goes to disk.\n\nThis adds triggers to jbd2 buffer heads.  Just before writing a metadata\nbuffer to the journal, jbd2 will optionally call a commit trigger associated\nwith the buffer.  If the journal is aborted, an abort trigger will be\ncalled on any dirty buffers as they are dropped from pending\ntransactions.\n\nocfs2 will use this feature.\n\nInitially I tried to come up with a more generic trigger that could be\nused for non-buffer-related events like transaction completion.  It\ndoesn\u0027t tie nicely, because the information a buffer trigger needs\n(specific to a journal_head) isn\u0027t the same as what a transaction\ntrigger needs (specific to a tranaction_t or perhaps journal_t).  So I\nimplemented a buffer set, with the understanding that\njournal/transaction wide triggers should be implemented separately.\n\nThere is only one trigger set allowed per buffer.  I can\u0027t think of any\nreason to attach more than one set.  Contrast this with a journal or\ntransaction in which multiple places may want to watch the entire\ntransaction separately.\n\nThe trigger sets are considered static allocation from the jbd2\nperspective.  ocfs2 will just have one trigger set per block type,\nsetting the same set on every bh of the same type.\n\nSigned-off-by: Joel Becker \u003cjoel.becker@oracle.com\u003e\nCc: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\nCc: \u003clinux-ext4@vger.kernel.org\u003e\nSigned-off-by: Mark Fasheh \u003cmfasheh@suse.com\u003e\n"
    },
    {
      "commit": "40a1984d22294ab202f616e432bb8d3481897675",
      "tree": "42d9970637c0c26b723b51115a6a290d8761eb8e",
      "parents": [
        "4a9bf99b205448ec1f0cbdee1776a29f9c503ce4"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sun Jan 04 19:55:57 2009 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sun Jan 04 19:55:57 2009 -0500"
      },
      "message": "jbd2: Submit writes to the journal using WRITE_SYNC\n\nSince we will be waiting the write of the commit record to the journal\nto complete in journal_submit_commit_record(), submit it using\nWRITE_SYNC.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "4a9bf99b205448ec1f0cbdee1776a29f9c503ce4",
      "tree": "a1bd3a27526debaf972460c4ea0df0fd423c4026",
      "parents": [
        "ba80b1019aa722b24506db1ee755e0bb2f513022"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sat Jan 03 22:56:44 2009 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sat Jan 03 22:56:44 2009 -0500"
      },
      "message": "jbd2: Add pid and journal device name to the \"kjournald2 starting\" message\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "c31910672376dfb8d020e32afa7249763bcd924a",
      "tree": "3f2b95a1d4a4da76d85d5bf32534fa3d15a82eac",
      "parents": [
        "c39a7f84d7845aa95d1c7c168f38215aedcc13c2"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Tue Jan 06 11:14:25 2009 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Tue Jan 06 11:14:25 2009 -0500"
      },
      "message": "ext4: Remove code to create the journal inode\n\nThis code has been obsolete in quite some time, since the supported\nmethod for adding a journal inode is to use tune2fs (or to creating\nnew filesystem with a journal via mke2fs or mkfs.ext4).\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "fb68407b0d9efba962c03f55009c797e22f024bc",
      "tree": "b3f33f513969d6f77c5b6a6f71b662057d3440a5",
      "parents": [
        "c3a326a657562dab81acf05aee106dc1fe345eb4"
      ],
      "author": {
        "name": "Aneesh Kumar K.V",
        "email": "aneesh.kumar@linux.vnet.ibm.com",
        "time": "Thu Nov 06 17:50:21 2008 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Thu Nov 06 17:50:21 2008 -0500"
      },
      "message": "jbd2: Call journal commit callback without holding j_list_lock\n\nAvoid freeing the transaction in __jbd2_journal_drop_transaction() so\nthe journal commit callback can run without holding j_list_lock, to\navoid lock contention on this spinlock.\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": "1a0d3786dd57dbd74f340322054c3d618b999dcf",
      "tree": "b10b3ed6cb60ee34a4e8140e60da2ecc34b52f32",
      "parents": [
        "498e5f24158da7bf8fa48074a70e370e22844492"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Wed Nov 05 00:09:22 2008 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Wed Nov 05 00:09:22 2008 -0500"
      },
      "message": "jbd2: Remove a large array of bh\u0027s from the stack of the checkpoint routine\n\njbd2_log_do_checkpoint()n is one of the kernel\u0027s largest stack users.\nMove the array of buffer head\u0027s from the stack of jbd2_log_do_checkpoint()\nto the in-core journal structure.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "30773840c19cea60dcef39545960d541b1ac1cf8",
      "tree": "f220a2dce451a40dc7264e8fd70c77c5a3908873",
      "parents": [
        "d7cfa4684d82f58e5d7cb73b8a3c88c169937f25"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sat Jan 03 20:27:38 2009 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sat Jan 03 20:27:38 2009 -0500"
      },
      "message": "ext4: add fsync batch tuning knobs\n\nAdd new mount options, min_batch_time and max_batch_time, which\ncontrols how long the jbd2 layer should wait for additional filesystem\noperations to get batched with a synchronous write transaction.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "d7cfa4684d82f58e5d7cb73b8a3c88c169937f25",
      "tree": "1a47a0b3f6a9964c965e590fb3c438c8916bc357",
      "parents": [
        "e07f7183a486cf9783d1f8c9d2997b5b39eeb2d4"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Wed Dec 17 00:20:45 2008 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Wed Dec 17 00:20:45 2008 -0500"
      },
      "message": "ext4: display average commit time\n\nDisplay the average commit time (which is used by the ext4 fsync\nbatching patch) in /proc/fs/jbd2/*/info for performance tuning\npurposes.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "e07f7183a486cf9783d1f8c9d2997b5b39eeb2d4",
      "tree": "74ed3a563add5fa57e80af03f3f712f2910ac39f",
      "parents": [
        "032115fcef837a00336ddf7bda584e89789ea498"
      ],
      "author": {
        "name": "Josef Bacik",
        "email": "jbacik@redhat.com",
        "time": "Wed Nov 26 01:14:26 2008 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Wed Nov 26 01:14:26 2008 -0500"
      },
      "message": "jbd2: improve jbd2 fsync batching\n\nThis patch removes the static sleep time in favor of a more self\noptimizing approach where we measure the average amount of time it\ntakes to commit a transaction to disk and the ammount of time a\ntransaction has been running.  If somebody does a sync write or an\nfsync() traditionally we would sleep for 1 jiffies, which depending on\nthe value of HZ could be a significant amount of time compared to how\nlong it takes to commit a transaction to the underlying storage.  With\nthis patch instead of sleeping for a jiffie, we check to see if the\namount of time this transaction has been running is less than the\naverage commit time, and if it is we sleep for the delta using\nschedule_hrtimeout to give us a higher precision sleep time.  This\ngreatly benefits high end storage where you could end up sleeping for\nlonger than it takes to commit the transaction and therefore sitting\nidle instead of allowing the transaction to be committed by keeping\nthe sleep time to a minimum so you are sure to always be doing\nsomething.\n\nSigned-off-by: Josef Bacik \u003cjbacik@redhat.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n\n"
    },
    {
      "commit": "fd98496f467b3d26d05ab1498f41718b5ef13de5",
      "tree": "27e29934f5c2ee5ccc060de27dee261d31d6842c",
      "parents": [
        "0390131ba84fd3f726f9e24fc4553828125700bb"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Jan 05 21:34:13 2009 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Jan 05 21:34:13 2009 -0500"
      },
      "message": "jbd2: Add barrier not supported test to journal_wait_on_commit_record\n\nXen doesn\u0027t report that barriers are not supported until buffer I/O is\nreported as completed, instead of when the buffer I/O is submitted.\nAdd a check and a fallback codepath to journal_wait_on_commit_record()\nto detect this case, so that attempts to mount ext4 filesystems on\nLVM/devicemapper devices on Xen guests don\u0027t blow up with an \"Aborting\njournal on device XXX\"; \"Remounting filesystem read-only\" error.\n\nThanks to Andreas Sundstrom for reporting this issue.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\nCc: stable@kernel.org\n"
    },
    {
      "commit": "2423840ded13e6d3b52d88aff8d033bb78fafd08",
      "tree": "9c82375eb1f17a635de090aa0f944b67c41fc981",
      "parents": [
        "8c3f25d8950c3e9fe6c9849f88679b3f2a071550"
      ],
      "author": {
        "name": "Sami Liedes",
        "email": "sliedes@cc.hut.fi",
        "time": "Sun Nov 02 19:23:30 2008 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sun Nov 02 19:23:30 2008 -0500"
      },
      "message": "jbd2: deregister proc on failure in jbd2_journal_init_inode\n\njbd2_journal_init_inode() does not call jbd2_stats_proc_exit() on all\nfailure paths after calling jbd2_stats_proc_init(). This leaves\ndangling references to the fs in proc.\n\nThis patch fixes a bug reported by Sami Leides at:\nhttp://bugzilla.kernel.org/show_bug.cgi?id\u003d11493\n\nSigned-off-by: Sami Liedes \u003csliedes@cc.hut.fi\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "8c3f25d8950c3e9fe6c9849f88679b3f2a071550",
      "tree": "61b51da53175a5dafb3607bdc04609d04370d74c",
      "parents": [
        "e219cca082f52e7dfea41f3be264b7b5eb204227"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Thu Nov 06 22:38:07 2008 -0500"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Thu Nov 06 22:38:07 2008 -0500"
      },
      "message": "jbd2: don\u0027t give up looking for space so easily in __jbd2_log_wait_for_space\n\nCommit 23f8b79e introducd a regression because it assumed that if\nthere were no transactions ready to be checkpointed, that no progress\ncould be made on making space available in the journal, and so the\njournal should be aborted.  This assumption is false; it could be the\ncase that simply calling jbd2_cleanup_journal_tail() will recover the\nnecessary space, or, for small journals, the currently committing\ntransaction could be responsible for chewing up the required space in\nthe log, so we need to wait for the currently committing transaction\nto finish before trying to force a checkpoint operation.\n\nThis patch fixes a bug reported by Mihai Harpau at:\nhttps://bugzilla.redhat.com/show_bug.cgi?id\u003d469582\n\nThis patch fixes a bug reported by François Valenduc at:\nhttp://bugzilla.kernel.org/show_bug.cgi?id\u003d11840\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\nCc: Duane Griffin \u003cduaneg@dghda.com\u003e\nCc: Toshiyuki Okajima \u003ctoshi.okajima@jp.fujitsu.com\u003e\n"
    },
    {
      "commit": "6c20ec850360bc6e5c66a787f0523a80450d65ab",
      "tree": "567f496cf53dbfbc235809edac134e0247a062c8",
      "parents": [
        "ef2cabf7c6d838eb0ee2b4fb8ef84f7c06ce16d9"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Tue Oct 28 21:08:20 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Tue Oct 28 21:08:20 2008 -0400"
      },
      "message": "jbd2: Call the commit callback before the transaction could get dropped\n\nThe transaction can potentially get dropped if there are no buffers\nthat need to be written.  Make sure we call the commit callback before\npotentially deciding to drop the transaction.  Also avoid\ndereferencing the commit_transaction pointer in the marker for the\nsame reason.\n\nThis patch fixes the bug reported by Eric Paris at:\nhttp://bugzilla.kernel.org/show_bug.cgi?id\u003d11838\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\nAcked-by: Eric Sandeen \u003csandeen@redhat.com\u003e\nTested-by: Eric Paris \u003ceparis@redhat.com\u003e\n"
    },
    {
      "commit": "6da0b38f4433fb0f24615449d7966471b6e5eae0",
      "tree": "9f163fbbc7342406bb602de447293c0b11628c6f",
      "parents": [
        "0d468300dc97d6aec084799ffe39253ac366f1e4"
      ],
      "author": {
        "name": "Alexey Dobriyan",
        "email": "adobriyan@gmail.com",
        "time": "Mon Oct 20 22:28:45 2008 +0400"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Mon Oct 20 11:43:59 2008 -0700"
      },
      "message": "fs/Kconfig: move ext2, ext3, ext4, JBD, JBD2 out\n\nUse fs/*/Kconfig more, which is good because everything related to one\nfilesystem is in one place and fs/Kconfig is quite fat.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "3e624fc72fba09b6f999a9fbb87b64efccd38036",
      "tree": "f0a1feac377788b27ea704519a33f367a6d415f9",
      "parents": [
        "22359f5745eb26bd3205a1ede7968c8944398220"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Thu Oct 16 20:00:24 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Thu Oct 16 20:00:24 2008 -0400"
      },
      "message": "ext4: Replace hackish ext4_mb_poll_new_transaction with commit callback\n\nThe multiblock allocator needs to be able to release blocks (and issue\na blkdev discard request) when the transaction which freed those\nblocks is committed.  Previously this was done via a polling mechanism\nwhen blocks are allocated or freed.  A much better way of doing things\nis to create a jbd2 callback function and attaching the list of blocks\nto be freed directly to the transaction structure.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "5bf5683a33f3584da6eced480967c4f7e11515a8",
      "tree": "4986ba3932d9f259fa1bc674deff3e35f689b243",
      "parents": [
        "7ad7445f60fe4d46c4c9d2a9463db180d2a3b270"
      ],
      "author": {
        "name": "Hidehiro Kawai",
        "email": "hidehiro.kawai.ez@hitachi.com",
        "time": "Fri Oct 10 22:12:43 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Fri Oct 10 22:12:43 2008 -0400"
      },
      "message": "ext4: add an option to control error handling on file data\n\nIf the journal doesn\u0027t abort when it gets an IO error in file data\nblocks, the file data corruption will spread silently.  Because\nmost of applications and commands do buffered writes without fsync(),\nthey don\u0027t notice the IO error.  It\u0027s scary for mission critical\nsystems.  On the other hand, if the journal aborts whenever it gets\nan IO error in file data blocks, the system will easily become\ninoperable.  So this patch introduces a filesystem option to\ndetermine whether it aborts the journal or just call printk() when\nit gets an IO error in file data.\n\nIf you mount an ext4 fs with data_err\u003dabort option, it aborts on file\ndata write error.  If you mount it with data_err\u003dignore, it doesn\u0027t\nabort, just call printk().  data_err\u003dignore is the default.\n\nHere is the corresponding patch of the ext3 version:\nhttp://kerneltrap.org/mailarchive/linux-kernel/2008/9/9/3239374\n\nSigned-off-by: Hidehiro Kawai \u003chidehiro.kawai.ez@hitachi.com\u003e\nSigned-off-by: Theodore Ts\u0027o \u003ctytso@mit.edu\u003e\n\n"
    },
    {
      "commit": "7ad7445f60fe4d46c4c9d2a9463db180d2a3b270",
      "tree": "cd4e0f69f90664e5ca4185271fbacbb7b4f59491",
      "parents": [
        "7ffe1ea8949c75ecffb7a4d988bb881a9fa62fbe"
      ],
      "author": {
        "name": "Hidehiro Kawai",
        "email": "hidehiro.kawai.ez@hitachi.com",
        "time": "Fri Oct 10 20:29:31 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Fri Oct 10 20:29:31 2008 -0400"
      },
      "message": "jbd2: don\u0027t dirty original metadata buffer on abort\n\nCurrently, original metadata buffers are dirtied when they are\nunfiled whether the journal has aborted or not.  Eventually these\nbuffers will be written-back to the filesystem by pdflush.  This\nmeans some metadata buffers are written to the filesystem without\njournaling if the journal aborts.  So if both journal abort and\nsystem crash happen at the same time, the filesystem would become\ninconsistent state.  Additionally, replaying journaled metadata\ncan overwrite the latest metadata on the filesystem partly.\nBecause, if the journal gets aborted, journaled metadata are\npreserved and replayed during the next mount not to lose\nuncheckpointed metadata.  This would also break the consistency\nof the filesystem.\n\nThis patch prevents original metadata buffers from being dirtied\non abort by clearing BH_JBDDirty flag from those buffers.  Thus,\nno metadata buffers are written to the filesystem without journaling.\n\nSigned-off-by: Hidehiro Kawai \u003chidehiro.kawai.ez@hitachi.com\u003e\nSigned-off-by: Theodore Ts\u0027o \u003ctytso@mit.edu\u003e\n\n"
    },
    {
      "commit": "44519faf22ad6ce924ad0352d3dc200d9e0b66e8",
      "tree": "332dd28cf16439fc4c78ad198e04c12ff7c16e66",
      "parents": [
        "77e841de8abac4755cc83ca224fdf71418d65380"
      ],
      "author": {
        "name": "Hidehiro Kawai",
        "email": "hidehiro.kawai.ez@hitachi.com",
        "time": "Fri Oct 10 20:29:13 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Fri Oct 10 20:29:13 2008 -0400"
      },
      "message": "jbd2: fix error handling for checkpoint io\n\nWhen a checkpointing IO fails, current JBD2 code doesn\u0027t check the\nerror and continue journaling.  This means latest metadata can be\nlost from both the journal and filesystem.\n\nThis patch leaves the failed metadata blocks in the journal space\nand aborts journaling in the case of jbd2_log_do_checkpoint().\nTo achieve this, we need to do:\n\n1. don\u0027t remove the failed buffer from the checkpoint list where in\n   the case of __try_to_free_cp_buf() because it may be released or\n   overwritten by a later transaction\n2. jbd2_log_do_checkpoint() is the last chance, remove the failed\n   buffer from the checkpoint list and abort the journal\n3. when checkpointing fails, don\u0027t update the journal super block to\n   prevent the journaled contents from being cleaned.  For safety,\n   don\u0027t update j_tail and j_tail_sequence either\n4. when checkpointing fails, notify this error to the ext4 layer so\n   that ext4 don\u0027t clear the needs_recovery flag, otherwise the\n   journaled contents are ignored and cleaned in the recovery phase\n5. if the recovery fails, keep the needs_recovery flag\n6. prevent jbd2_cleanup_journal_tail() from being called between\n   __jbd2_journal_drop_transaction() and jbd2_journal_abort()\n   (a possible race issue between jbd2_log_do_checkpoint()s called by\n   jbd2_journal_flush() and __jbd2_log_wait_for_space())\n\nSigned-off-by: Hidehiro Kawai \u003chidehiro.kawai.ez@hitachi.com\u003e\nSigned-off-by: Theodore Ts\u0027o \u003ctytso@mit.edu\u003e\n\n"
    },
    {
      "commit": "77e841de8abac4755cc83ca224fdf71418d65380",
      "tree": "937694b6bfb13b2ef6e154e8ab25f5f7200159fb",
      "parents": [
        "fd048088306656824958e7783ffcee27e241b361"
      ],
      "author": {
        "name": "Hidehiro Kawai",
        "email": "hidehiro.kawai.ez@hitachi.com",
        "time": "Sun Oct 12 16:39:16 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sun Oct 12 16:39:16 2008 -0400"
      },
      "message": "jbd2: abort when failed to log metadata buffers\n\nIf we failed to write metadata buffers to the journal space and\nsucceeded to write the commit record, stale data can be written\nback to the filesystem as metadata in the recovery phase.\n\nTo avoid this, when we failed to write out metadata buffers,\nabort the journal before writing the commit record.\n\nWe can also avoid this kind of corruption by using the journal\nchecksum feature because it can detect invalid metadata blocks in the\njournal and avoid them from being replayed.  So we don\u0027t need to care\nabout asynchronous commit record writeout with a checksum.\n\nSigned-off-by: Hidehiro Kawai \u003chidehiro.kawai.ez@hitachi.com\u003e\nSigned-off-by: Theodore Ts\u0027o \u003ctytso@mit.edu\u003e\n\n"
    },
    {
      "commit": "45a90bfd90c1215bf824c0f705b409723f52361b",
      "tree": "e314c36e14c380b87d19e3054494768f4c14e458",
      "parents": [
        "ede86cc473defab74d778aeac14b19f43129d4d1"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Oct 06 12:04:02 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Oct 06 12:04:02 2008 -0400"
      },
      "message": "jbd2: Fix buffer head leak when writing the commit block\n\nAlso make sure the buffer heads are marked clean before submitting bh\nfor writing.  The previous code was marking the buffer head dirty,\nwhich would have forced an unneeded write (and seek) to the journal\nfor no good reason.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "ede86cc473defab74d778aeac14b19f43129d4d1",
      "tree": "19da8009accf1737171f5949413e46a9086d5fdc",
      "parents": [
        "23f8b79eae8a74e42a006ffa7c456e295c7e1c0d"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sun Oct 05 20:50:06 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sun Oct 05 20:50:06 2008 -0400"
      },
      "message": "ext4: Add debugging markers that can be used by systemtap\n\nThis debugging markers are designed to debug problems such as the\nrandom filesystem latency problems reported by Arjan.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "23f8b79eae8a74e42a006ffa7c456e295c7e1c0d",
      "tree": "b62700cd7ff65268a50cfd8d8652d220f7c5c9a4",
      "parents": [
        "c806e68f5647109350ec546fee5b526962970fd2"
      ],
      "author": {
        "name": "Duane Griffin",
        "email": "duaneg@dghda.com",
        "time": "Wed Oct 08 23:28:31 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Wed Oct 08 23:28:31 2008 -0400"
      },
      "message": "jbd2: abort instead of waiting for nonexistent transaction\n\nThe __jbd2_log_wait_for_space function sits in a loop checkpointing\ntransactions until there is sufficient space free in the journal. \nHowever, if there are no transactions to be processed (e.g.  because the\nfree space calculation is wrong due to a corrupted filesystem) it will\nnever progress.\n\nCheck for space being required when no transactions are outstanding and\nabort the journal instead of endlessly looping.\n\nThis patch fixes the bug reported by Sami Liedes at:\nhttp://bugzilla.kernel.org/show_bug.cgi?id\u003d10976\n\nSigned-off-by: Duane Griffin \u003cduaneg@dghda.com\u003e\nCc: Sami Liedes \u003csliedes@cc.hut.fi\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": "914258bf2cb22bf4336a1b1d90c551b4b11ca5aa",
      "tree": "66a3068b53059154b4584166c4b2ce90ae833b42",
      "parents": [
        "730c213c79a638137b47a90624e4bac252f07ae7"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Oct 06 21:35:40 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon Oct 06 21:35:40 2008 -0400"
      },
      "message": "ext4/jbd2: Avoid WARN() messages when failing to write to the superblock\n\nThis fixes some very common warnings reported by kerneloops.org\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "05496769e5da83ce22ed97345afd9c7b71d6bd24",
      "tree": "545c4d66296fe69ab24d34fd2f0298fb8ee66e4f",
      "parents": [
        "899fc1a4cf404747de2666534d508804597ee22f"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Tue Sep 16 14:36:17 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Tue Sep 16 14:36:17 2008 -0400"
      },
      "message": "jbd2: clean up how the journal device name is printed\n\nCalculate the journal device name once and stash it away in the\njournal_s structure.  This avoids needing to call bdevname()\neverywhere and reduces stack usage by not needing to allocate an\non-stack buffer.  In addition, we eliminate the \u0027/\u0027 that can appear in\ndevice names (e.g. \"cciss/c0d0p9\" --- see kernel bugzilla #11321) that\ncan cause problems when creating proc directory names, and include the\ninode number to support ocfs2 which creates multiple journals with\ndifferent inode numbers.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "23a0ee908cbfba3264d19729c67c22b20fa73886",
      "tree": "541103f6283cbac6b82cff88a7b91128acfce046",
      "parents": [
        "cc7a486cac78f6fc1a24e8cd63036bae8d2ab431",
        "0f2bc27be27ca1dcc66b96131e44bf7648b959c6"
      ],
      "author": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Aug 12 00:11:49 2008 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Aug 12 00:11:49 2008 +0200"
      },
      "message": "Merge branch \u0027core/locking\u0027 into core/urgent\n"
    },
    {
      "commit": "3295f0ef9ff048a4619ede597ad9ec9cab725654",
      "tree": "f39a8ecf1958130a0b86c554399d23a65b1c3991",
      "parents": [
        "8bfe0298f7a04952d19f4a2cf510d7a6311eeed0"
      ],
      "author": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Mon Aug 11 10:30:30 2008 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Mon Aug 11 10:30:30 2008 +0200"
      },
      "message": "lockdep: rename map_[acquire|release]() \u003d\u003e lock_map_[acquire|release]()\n\nthe names were too generic:\n\n drivers/uio/uio.c:87: error: expected identifier or \u0027(\u0027 before \u0027do\u0027\n drivers/uio/uio.c:87: error: expected identifier or \u0027(\u0027 before \u0027while\u0027\n drivers/uio/uio.c:113: error: \u0027map_release\u0027 undeclared here (not in a function)\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "4f3e7524b2e703d9f8b02ac338153a53dd7ede66",
      "tree": "0033ade94f230d6044ad318e3791c55ad611069e",
      "parents": [
        "f82b217e3513fe3af342c0f3ee1494e86250c21c"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Mon Aug 11 09:30:23 2008 +0200"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Mon Aug 11 09:30:23 2008 +0200"
      },
      "message": "lockdep: map_acquire\n\nMost the free-standing lock_acquire() usages look remarkably similar, sweep\nthem into a new helper.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "529ae9aaa08378cfe2a4350bded76f32cc8ff0ce",
      "tree": "d3ae998f9876c72a83a022805103a92111852b21",
      "parents": [
        "e9ba9698187ddbc0c5bfcf41de0349a662d23d02"
      ],
      "author": {
        "name": "Nick Piggin",
        "email": "npiggin@suse.de",
        "time": "Sat Aug 02 12:01:03 2008 +0200"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Mon Aug 04 21:31:34 2008 -0700"
      },
      "message": "mm: rename page trylock\n\nConverting page lock to new locking bitops requires a change of page flag\noperation naming, so we might as well convert it to something nicer\n(!TestSetPageLocked_Lock \u003d\u003e trylock_page, SetPageLocked \u003d\u003e set_page_locked).\n\nThis also facilitates lockdeping of page lock.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nAcked-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nAcked-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nAcked-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nAcked-by: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "00b32b7fb671e797bdd2736524a497f18a8df7bf",
      "tree": "0116370b867d6c1138d637e847a5b5e20c530e53",
      "parents": [
        "2b2d6d019724de6e51ac5bcf22b5ef969daefa8b"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sat Jul 26 17:33:53 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sat Jul 26 17:33:53 2008 -0400"
      },
      "message": "ext4: unexport jbd2_journal_update_superblock\n\nRemove the unused EXPORT_SYMBOL(jbd2_journal_update_superblock).\n\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n\n"
    },
    {
      "commit": "e9e34f4e8f42177c66754fec1edfd35e70c18f99",
      "tree": "659e21aa3ea54c7643c0e3112aa3aba54ca7b4cf",
      "parents": [
        "9c83a923c67df311c467ec956009f0eb4019195d"
      ],
      "author": {
        "name": "Hidehiro Kawai",
        "email": "hidehiro.kawai.ez@hitachi.com",
        "time": "Thu Jul 31 22:26:04 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Thu Jul 31 22:26:04 2008 -0400"
      },
      "message": "jbd2: don\u0027t abort if flushing file data failed\n\nIn ordered mode, the current jbd2 aborts the journal if a file data buffer\nhas an error.  But this behavior is unintended, and we found that it has\nbeen adopted accidentally.\n\nThis patch undoes it and just calls printk() instead of aborting the\njournal.  Unlike a similar patch for ext3/jbd, file data buffers are\nwritten via generic_writepages().  But we also need to set AS_EIO\ninto their mappings because wait_on_page_writeback_range() clears\nAS_EIO before a user process sees it.\n\nSigned-off-by: Hidehiro Kawai \u003chidehiro.kawai.ez@hitachi.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "cd1aac32923a9c8adcc0ae85e33c1ca0c5855838",
      "tree": "3d55d9249ef960a7e345969404d537e36dbd9609",
      "parents": [
        "61628a3f3a37af2bf25daf8e26fd6b76a78c4f76"
      ],
      "author": {
        "name": "Aneesh Kumar K.V",
        "email": "aneesh.kumar@linux.vnet.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: Add ordered mode support for delalloc\n\nThis provides a new ordered mode implementation which gets rid of using\nbuffer heads to enforce the ordering between metadata change with the\nrelated data chage.  Instead, in the new ordering mode, it keeps track\nof all of the inodes touched by each transaction on a list, and when\nthat transaction is committed, it flushes all of the dirty pages for\nthose inodes.  In addition, the new ordered mode reverses the lock\nordering of the page lock and transaction lock, which provides easier\nsupport for delayed allocation.\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"
    },
    {
      "commit": "87c89c232c8f7b3820c33c3b9bc803e9358027da",
      "tree": "9a714242513ec3e5e1c28fad1bfff852efd033d5",
      "parents": [
        "678aaf481496b01473b778685eca231d6784098b"
      ],
      "author": {
        "name": "Jan Kara",
        "email": "jack@suse.cz",
        "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": "jbd2: Remove data\u003dordered mode support using jbd buffer heads\n\nSigned-off-by: Jan Kara \u003cjack@suse.cz\u003e\n"
    },
    {
      "commit": "c851ed540173736e60d48b53b91a16ea5c903896",
      "tree": "828fe0d71b7f18dc170090dbb2fb5ac9deae4ee0",
      "parents": [
        "f4c0a0fdfae708f7aa438c27a380ed4071294e11"
      ],
      "author": {
        "name": "Jan Kara",
        "email": "jack@suse.cz",
        "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": "jbd2: Implement data\u003dordered mode handling via inodes\n\nThis patch adds necessary framework into JBD2 to be able to track inodes\nwith each transaction and write-out their dirty data during transaction\ncommit time.\n\nThis new ordered mode brings all sorts of advantages such as possibility \nto get rid of journal heads and buffer heads for data buffers in ordered \nmode, better ordering of writes on transaction commit, simplification of\n some JBD code, no more anonymous pages when truncate of data being \ncommitted happens.  Also with this new ordered mode, delayed allocation \non ordered mode is much simpler.\n\nSigned-off-by: Jan Kara \u003cjack@suse.cz\u003e\n"
    },
    {
      "commit": "530576bbf379fc45cfb34f246257d8526db44567",
      "tree": "d4a89bf6f2736816e1b43abfdafcf2d61bbd19ef",
      "parents": [
        "772cb7c83ba256a11c7bf99a11bef3858d23767c"
      ],
      "author": {
        "name": "Mingming Cao",
        "email": "cmm@us.ibm.com",
        "time": "Sun Jul 13 21:06:39 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Sun Jul 13 21:06:39 2008 -0400"
      },
      "message": "jbd2: fix race between jbd2_journal_try_to_free_buffers() and jbd2 commit transaction\n\njournal_try_to_free_buffers() could race with jbd commit transaction\nwhen the later is holding the buffer reference while waiting for the\ndata buffer to flush to disk. If the caller of\njournal_try_to_free_buffers() request tries hard to release the buffers,\nit will treat the failure as error and return back to the caller. We\nhave seen the directo IO failed due to this race.  Some of the caller of\nreleasepage() also expecting the buffer to be dropped when passed with\nGFP_KERNEL mask to the releasepage()-\u003ejournal_try_to_free_buffers().\n\nWith this patch, if the caller is passing the GFP_KERNEL to indicating\nthis call could wait, in case of try_to_free_buffers() failed, let\u0027s\nwaiting for journal_commit_transaction() to finish commit the current\ncommitting transaction , then try to free those buffers again with\njournal locked.\n\nSigned-off-by: Mingming Cao \u003ccmm@us.ibm.com\u003e\nReviewed-by: Badari Pulavarty \u003cpbadari@us.ibm.com\u003e \nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "736603ab297506f4396cb5af592004499950fcfd",
      "tree": "80d1f84702e1bfaca5d60482540b8294acd30bd3",
      "parents": [
        "4db9c54a53135b7c1c1f403f1aeaf9fc0d7738b8"
      ],
      "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": "jbd2: Add commit time into the commit block\n\nCarlo Wood has demonstrated that it\u0027s possible to recover deleted\nfiles from the journal.  Something that will make this easier is if we\ncan put the time of the commit into commit block.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "034772b068be62a79470d6c1b81b01fbe27793ac",
      "tree": "408b55ae9241d1dca1145e16ff781b5f0112dd35",
      "parents": [
        "cd0b6a39a1d68b61b1073662f40f747c8b728f98"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Tue Jun 03 22:31:11 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Tue Jun 03 22:31:11 2008 -0400"
      },
      "message": "jbd2: Fix barrier fallback code to re-lock the buffer head\n\nIf the device doesn\u0027t support write barriers, the write is retried\nwithout ordered mode.  But the buffer head needs to be re-locked or\nsubmit_bh will fail with on BUG(!buffer_locked(bh)).\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "624080eded68738daee041ad64672a9d2614754f",
      "tree": "c1350c70233c1f7536a1927bacabe4084770d3c7",
      "parents": [
        "8ea76900be3b4522396e2021260d2818a27b3a5b"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Fri Jun 06 17:50:40 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Fri Jun 06 17:50:40 2008 -0400"
      },
      "message": "jbd2: If a journal checksum error is detected, propagate the error to ext4\n\nIf a journal checksum error is detected, the ext4 filesystem will call\next4_error(), and the mount will either continue, become a read-only\nmount, or cause a kernel panic based on the superblock flags\nindicating the user\u0027s preference of what to do in case of filesystem\ncorruption being detected.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "8ea76900be3b4522396e2021260d2818a27b3a5b",
      "tree": "309d11d55a90e1249a23c98b14f859eb1c5f7334",
      "parents": [
        "944600930a37aa725ba6f93c3244e2d77a1e3581"
      ],
      "author": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon May 26 10:28:09 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Mon May 26 10:28:09 2008 -0400"
      },
      "message": "jbd2: Fix memory leak when verifying checksums in the journal\n\nCc: Andreas Dilger \u003cadilger@clusterfs.com\u003e\nCc: Girish Shilamkar \u003cgirish@clusterfs.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n\n"
    },
    {
      "commit": "02c471cb17203c748e9bc87003052c1f46e5df69",
      "tree": "a9d389f614d8d9d230920f6cf258f4d640a44662",
      "parents": [
        "519deca0496a4df07d15acf3181ca5d573bffdec"
      ],
      "author": {
        "name": "Mingming Cao",
        "email": "cmm@us.ibm.com",
        "time": "Thu May 15 14:46:17 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Thu May 15 14:46:17 2008 -0400"
      },
      "message": "jbd2: update transaction t_state to T_COMMIT fix\n\nUpdating the current transaction\u0027s t_state is protected by j_state_lock.  We\nneed to do the same when updating the t_state to T_COMMIT.\n\nAcked-by: Jan Kara \u003cjack@suse.cz\u003e\nSigned-off-by: Mingming Cao \u003ccmm@us.ibm.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\n"
    },
    {
      "commit": "f36f21ecca9ee688301174e5f2e0827827a7a7ff",
      "tree": "b147bb5cc37683dfe01c86fba634808aa2ff567d",
      "parents": [
        "78bb6cb9a890d3d50ca3b02fce9223d3e734ab9b"
      ],
      "author": {
        "name": "Jean Delvare",
        "email": "khali@linux-fr.org",
        "time": "Mon May 12 14:02:33 2008 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Tue May 13 08:02:26 2008 -0700"
      },
      "message": "Fix misuses of bdevname()\n\nbdevname() fills the buffer that it is given as a parameter, so calling\nstrcpy() or snprintf() on the returned value is redundant (and probably not\nguaranteed to work - I don\u0027t think strcpy and snprintf support overlapping\nbuffers.)\n\nSigned-off-by: Jean Delvare \u003ckhali@linux-fr.org\u003e\nCc: Stephen Tweedie \u003csct@redhat.com\u003e\nCc: Jens Axboe \u003caxboe@kernel.dk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "329d291f50d53f77d15769051f3eb494a9fd54b7",
      "tree": "a6ba58859d4fa13e39d4b193c41147daaa750d4d",
      "parents": [
        "46e665e9d297525d286989640cf4247cbe941df6"
      ],
      "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": "jdb2: 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": "620de4e19890c623eb4ba293ec19b42e2e391b89",
      "tree": "aa10ed1a0f8321ab91b68568a2a9ece4b74e51a3",
      "parents": [
        "5648ba5b2dc0d07a8108fabc7b9100962e9e1d88"
      ],
      "author": {
        "name": "Duane Griffin",
        "email": "duaneg@dghda.com",
        "time": "Tue Apr 29 22:02:47 2008 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Tue Apr 29 22:02:47 2008 -0400"
      },
      "message": "jbd2: only create debugfs and stats entries if init is successful\n\njbd2 debugfs and stats entries should only be created if cache initialisation\nis successful.  At the moment they are being created unconditionally which\nwill leave them dangling if cache (and hence module) initialisation fails.\n\nSigned-off-by: Duane Griffin \u003cduaneg@dghda.com\u003e\nCc: \u003clinux-ext4@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Mingming Cao \u003ccmm@us.ibm.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "5648ba5b2dc0d07a8108fabc7b9100962e9e1d88",
      "tree": "d6965923102789d645d93deef6e90d6fffd03b99",
      "parents": [
        "8a9362eb405e380432e6883cb83830df3b6cdf78"
      ],
      "author": {
        "name": "Randy Dunlap",
        "email": "randy.dunlap@oracle.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": "jbd2: fix kernel-doc notation\n\nFix kernel-doc notation in jbd2.\n\nSigned-off-by: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nSigned-off-by: Mingming Cao \u003ccmm@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    },
    {
      "commit": "8a9362eb405e380432e6883cb83830df3b6cdf78",
      "tree": "1d08110f16c6464fea804fc1dfb59e0573c559b3",
      "parents": [
        "83c49523c91fff10493f5b3c102063b02ab76907"
      ],
      "author": {
        "name": "Duane Griffin",
        "email": "duaneg@dghda.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": "jbd2: replace potentially false assertion with if block\n\nIf an error occurs during jbd2 cache initialisation it is possible for the\njournal_head_cache to be NULL when jbd2_journal_destroy_journal_head_cache is\ncalled.  Replace the J_ASSERT with an if block to handle the situation\ncorrectly.\n\nNote that even with this fix things will break badly if jbd2 is statically\ncompiled in and cache initialisation fails.\n\nSigned-off-by: Duane Griffin \u003cduaneg@dghda.com\u003e\nCc: \u003clinux-ext4@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Mingming Cao \u003ccmm@us.ibm.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n"
    }
  ],
  "next": "83c49523c91fff10493f5b3c102063b02ab76907"
}