)]}'
{
  "log": [
    {
      "commit": "d3712b9dfcf44ca145cf87e7f4096fa2d923471a",
      "tree": "d72aaaa845fb81c669093363a0a1cc6d9e96baf2",
      "parents": [
        "c5d2bc11030568966f04a2af35bacf33d3e37af7",
        "f2933e86ad93a8d1287079d59e67afd6f4166a9d"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Tue Jan 31 09:23:59 2012 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Tue Jan 31 09:23:59 2012 -0800"
      },
      "message": "Merge tag \u0027for-linus\u0027 of git://github.com/prasad-joshi/logfs_upstream\n\nThere are few important bug fixes for LogFS\n\n* tag \u0027for-linus\u0027 of git://github.com/prasad-joshi/logfs_upstream:\n  Logfs: Allow NULL block_isbad() methods\n  logfs: Grow inode in delete path\n  logfs: Free areas before calling generic_shutdown_super()\n  logfs: remove useless BUG_ON\n  MAINTAINERS: Add Prasad Joshi in LogFS maintiners\n  logfs: Propagate page parameter to __logfs_write_inode\n  logfs: set superblock shutdown flag after generic sb shutdown\n  logfs: take write mutex lock during fsync and sync\n  logfs: Prevent memory corruption\n  logfs: update page reference count for pined pages\n\nFix up conflict in fs/logfs/dev_mtd.c due to semantic change in what\n\"mtd-\u003eblock_isbad\" means in commit f2933e86ad93: \"Logfs: Allow NULL\nblock_isbad() methods\" clashing with the abstraction changes in the\ncommits 7086c19d0742: \"mtd: introduce mtd_block_isbad interface\" and\nd58b27ed58a3: \"logfs: do not use \u0027mtd-\u003eblock_isbad\u0027 directly\".\n\nThis resolution takes the semantics from commit f2933e86ad93, and just\nmakes mtd_block_isbad() return zero (false) if the \u0027block_isbad\u0027\nfunction is NULL.  But that also means that now \"mtd_can_have_bb()\"\nalways returns 0.\n\nNow, \"mtd_block_markbad()\" will obviously return an error if the\nlow-level driver doesn\u0027t support bad blocks, so this is somewhat\nnon-symmetric, but it actually makes sense if a NULL \"block_isbad\"\nfunction is considered to mean \"I assume that all my blocks are always\ngood\".\n"
    },
    {
      "commit": "0bd90387ed5a8abbcf43391b480efdc211721cfe",
      "tree": "ce92c57f4a56b601a694a0d50e5b2834065f42c1",
      "parents": [
        "ecfd890991a26e70547e025673580923a004c5e4"
      ],
      "author": {
        "name": "Prasad Joshi",
        "email": "prasadjoshi.linux@gmail.com",
        "time": "Sun Oct 02 23:46:51 2011 +0530"
      },
      "committer": {
        "name": "Prasad Joshi",
        "email": "prasadjoshi.linux@gmail.com",
        "time": "Sat Jan 28 11:38:25 2012 +0530"
      },
      "message": "logfs: Propagate page parameter to __logfs_write_inode\n\nDuring GC LogFS has to rewrite each valid block to a separate segment.\nRewrite operation reads data from an old segment and writes it to a\nnewly allocated segment. Since every write operation changes data\nblock pointers maintained in inode, inode should also be rewritten.\n\nIn GC path to avoid AB-BA deadlock LogFS marks a page with\nPG_pre_locked in addition to locking the page (PG_locked). The page\nlock is ignored iff the page is pre-locked.\n\nLogFS uses a special file called segment file. The segment file\nmaintains an 8 bytes entry for every segment. It keeps track of erase\ncount, level etc. for every segment.\n\nBad things happen with a segment belonging to the segment file is GCed\n\n ------------[ cut here ]------------\nkernel BUG at /home/prasad/logfs/readwrite.c:297!\ninvalid opcode: 0000 [#1] SMP\nModules linked in: logfs joydev usbhid hid psmouse e1000 i2c_piix4\n\t\tserio_raw [last unloaded: logfs]\nPid: 20161, comm: mount Not tainted 3.1.0-rc3+ #3 innotek GmbH\n\t\tVirtualBox\nEIP: 0060:[\u003cf809132a\u003e] EFLAGS: 00010292 CPU: 0\nEIP is at logfs_lock_write_page+0x6a/0x70 [logfs]\nEAX: 00000027 EBX: f73f5b20 ECX: c16007c8 EDX: 00000094\nESI: 00000000 EDI: e59be6e4 EBP: c7337b28 ESP: c7337b18\nDS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068\nProcess mount (pid: 20161, ti\u003dc7336000 task\u003deb323f70 task.ti\u003dc7336000)\nStack:\nf8099a3d c7337b24 f73f5b20 00001002 c7337b50 f8091f6d f8099a4d f80994e4\n00000003 00000000 c7337b68 00000000 c67e4400 00001000 c7337b80 f80935e5\n00000000 00000000 00000000 00000000 e1fcf000 0000000f e59be618 c70bf900\nCall Trace:\n[\u003cf8091f6d\u003e] logfs_get_write_page.clone.16+0xdd/0x100 [logfs]\n[\u003cf80935e5\u003e] logfs_mod_segment_entry+0x55/0x110 [logfs]\n[\u003cf809460d\u003e] logfs_get_segment_entry+0x1d/0x20 [logfs]\n[\u003cf8091060\u003e] ? logfs_cleanup_journal+0x50/0x50 [logfs]\n[\u003cf809521b\u003e] ostore_get_erase_count+0x1b/0x40 [logfs]\n[\u003cf80965b8\u003e] logfs_open_area+0xc8/0x150 [logfs]\n[\u003cc141a7ec\u003e] ? kmemleak_alloc+0x2c/0x60\n[\u003cf809668e\u003e] __logfs_segment_write.clone.16+0x4e/0x1b0 [logfs]\n[\u003cc10dd563\u003e] ? mempool_kmalloc+0x13/0x20\n[\u003cc10dd563\u003e] ? mempool_kmalloc+0x13/0x20\n[\u003cf809696f\u003e] logfs_segment_write+0x17f/0x1d0 [logfs]\n[\u003cf8092e8c\u003e] logfs_write_i0+0x11c/0x180 [logfs]\n[\u003cf8092f35\u003e] logfs_write_direct+0x45/0x90 [logfs]\n[\u003cf80934cd\u003e] __logfs_write_buf+0xbd/0xf0 [logfs]\n[\u003cc102900e\u003e] ? kmap_atomic_prot+0x4e/0xe0\n[\u003cf809424b\u003e] logfs_write_buf+0x3b/0x60 [logfs]\n[\u003cf80947a9\u003e] __logfs_write_inode+0xa9/0x110 [logfs]\n[\u003cf8094cb0\u003e] logfs_rewrite_block+0xc0/0x110 [logfs]\n[\u003cf8095300\u003e] ? get_mapping_page+0x10/0x60 [logfs]\n[\u003cf8095aa0\u003e] ? logfs_load_object_aliases+0x2e0/0x2f0 [logfs]\n[\u003cf808e57d\u003e] logfs_gc_segment+0x2ad/0x310 [logfs]\n[\u003cf808e62a\u003e] __logfs_gc_once+0x4a/0x80 [logfs]\n[\u003cf808ed43\u003e] logfs_gc_pass+0x683/0x6a0 [logfs]\n[\u003cf8097a89\u003e] logfs_mount+0x5a9/0x680 [logfs]\n[\u003cc1126b21\u003e] mount_fs+0x21/0xd0\n[\u003cc10f6f6f\u003e] ? __alloc_percpu+0xf/0x20\n[\u003cc113da41\u003e] ? alloc_vfsmnt+0xb1/0x130\n[\u003cc113db4b\u003e] vfs_kern_mount+0x4b/0xa0\n[\u003cc113e06e\u003e] do_kern_mount+0x3e/0xe0\n[\u003cc113f60d\u003e] do_mount+0x34d/0x670\n[\u003cc10f2749\u003e] ? strndup_user+0x49/0x70\n[\u003cc113fcab\u003e] sys_mount+0x6b/0xa0\n[\u003cc142d87c\u003e] syscall_call+0x7/0xb\nCode: f8 e8 8b 93 39 c9 8b 45 f8 3e 0f ba 28 00 19 d2 85 d2 74 ca eb d0 0f 0b 8d 45 fc 89 44 24 04 c7 04 24 3d 9a 09 f8 e8 09 92 39 c9 \u003c0f\u003e 0b 8d 74 26 00 55 89 e5 3e 8d 74 26 00 8b 10 80 e6 01 74 09\nEIP: [\u003cf809132a\u003e] logfs_lock_write_page+0x6a/0x70 [logfs] SS:ESP 0068:c7337b18\n---[ end trace 96e67d5b3aa3d6ca ]---\n\nThe patch passes locked page to __logfs_write_inode. It calls function\nlogfs_get_wblocks() to pre-lock the page. This ensures any further\nattempts to lock the page are ignored (esp from get_erase_count).\n\nAcked-by: Joern Engel \u003cjoern@logfs.org\u003e\nSigned-off-by: Prasad Joshi \u003cprasadjoshi.linux@gmail.com\u003e\n"
    },
    {
      "commit": "13ced29cb28996a9bc4f68e43ff0c57eafdb1e21",
      "tree": "7c5b11f5e5124fa4d0642281880b4c558b9e5fec",
      "parents": [
        "934eed395d201bf0901ca0c0cc3703b18729d0ce"
      ],
      "author": {
        "name": "Prasad Joshi",
        "email": "prasadjoshi.linux@gmail.com",
        "time": "Sat Jan 28 11:36:06 2012 +0530"
      },
      "committer": {
        "name": "Prasad Joshi",
        "email": "prasadjoshi.linux@gmail.com",
        "time": "Sat Jan 28 11:36:06 2012 +0530"
      },
      "message": "logfs: take write mutex lock during fsync and sync\n\nLogFS uses super-\u003es_write_mutex while writing data to disk. Taking the\nsame mutex lock in sync and fsync code path solves the following BUG:\n\n------------[ cut here ]------------\nkernel BUG at /home/prasad/logfs/dev_bdev.c:134!\n\nPid: 2387, comm: flush-253:16 Not tainted 3.0.0+ #4 Bochs Bochs\nRIP: 0010:[\u003cffffffffa007deed\u003e]  [\u003cffffffffa007deed\u003e]\n                bdev_writeseg+0x25d/0x270 [logfs]\nCall Trace:\n[\u003cffffffffa007c381\u003e] logfs_open_area+0x91/0x150 [logfs]\n[\u003cffffffff8128dcb2\u003e] ? find_level.clone.9+0x62/0x100\n[\u003cffffffffa007c49c\u003e] __logfs_segment_write.clone.20+0x5c/0x190 [logfs]\n[\u003cffffffff810ef005\u003e] ? mempool_kmalloc+0x15/0x20\n[\u003cffffffff810ef383\u003e] ? mempool_alloc+0x53/0x130\n[\u003cffffffffa007c7a4\u003e] logfs_segment_write+0x1d4/0x230 [logfs]\n[\u003cffffffffa0078f8e\u003e] logfs_write_i0+0x12e/0x190 [logfs]\n[\u003cffffffffa0079300\u003e] __logfs_write_rec+0x140/0x220 [logfs]\n[\u003cffffffffa0079444\u003e] logfs_write_rec+0x64/0xd0 [logfs]\n[\u003cffffffffa00795b6\u003e] __logfs_write_buf+0x106/0x110 [logfs]\n[\u003cffffffffa007a13e\u003e] logfs_write_buf+0x4e/0x80 [logfs]\n[\u003cffffffffa0073e33\u003e] __logfs_writepage+0x23/0x80 [logfs]\n[\u003cffffffffa007410c\u003e] logfs_writepage+0xdc/0x110 [logfs]\n[\u003cffffffff810f5ba7\u003e] __writepage+0x17/0x40\n[\u003cffffffff810f6208\u003e] write_cache_pages+0x208/0x4f0\n[\u003cffffffff810f5b90\u003e] ? set_page_dirty+0x70/0x70\n[\u003cffffffff810f653a\u003e] generic_writepages+0x4a/0x70\n[\u003cffffffff810f75d1\u003e] do_writepages+0x21/0x40\n[\u003cffffffff8116b9d1\u003e] writeback_single_inode+0x101/0x250\n[\u003cffffffff8116bdbd\u003e] writeback_sb_inodes+0xed/0x1c0\n[\u003cffffffff8116c5fb\u003e] writeback_inodes_wb+0x7b/0x1e0\n[\u003cffffffff8116cc23\u003e] wb_writeback+0x4c3/0x530\n[\u003cffffffff814d984d\u003e] ? sub_preempt_count+0x9d/0xd0\n[\u003cffffffff8116cd6b\u003e] wb_do_writeback+0xdb/0x290\n[\u003cffffffff814d984d\u003e] ? sub_preempt_count+0x9d/0xd0\n[\u003cffffffff814d6208\u003e] ? _raw_spin_unlock_irqrestore+0x18/0x40\n[\u003cffffffff8105aa5a\u003e] ? del_timer+0x8a/0x120\n[\u003cffffffff8116cfac\u003e] bdi_writeback_thread+0x8c/0x2e0\n[\u003cffffffff8116cf20\u003e] ? wb_do_writeback+0x290/0x290\n[\u003cffffffff8106d2e6\u003e] kthread+0x96/0xa0\n[\u003cffffffff814de514\u003e] kernel_thread_helper+0x4/0x10\n[\u003cffffffff8106d250\u003e] ? kthread_worker_fn+0x190/0x190\n[\u003cffffffff814de510\u003e] ? gs_change+0xb/0xb\nRIP  [\u003cffffffffa007deed\u003e] bdev_writeseg+0x25d/0x270 [logfs]\n---[ end trace 0211ad60a57657c4 ]---\n\nReviewed-by: Joern Engel \u003cjoern@logfs.org\u003e\nSigned-off-by: Prasad Joshi \u003cprasadjoshi.linux@gmail.com\u003e\n"
    },
    {
      "commit": "881764461165d69814194b6fe97d4352bbd0ae82",
      "tree": "ccb9b84ad2870b4d393d41c9bb742b063bfdc4d5",
      "parents": [
        "ad44be5c7820f5b8ce97292f4bcb3de73625c35b"
      ],
      "author": {
        "name": "Al Viro",
        "email": "viro@zeniv.linux.org.uk",
        "time": "Tue Jul 26 03:13:21 2011 -0400"
      },
      "committer": {
        "name": "Al Viro",
        "email": "viro@zeniv.linux.org.uk",
        "time": "Tue Jan 03 22:55:06 2012 -0500"
      },
      "message": "logfs: propagate umode_t\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n"
    },
    {
      "commit": "6b520e0565422966cdf1c3759bd73df77b0f248c",
      "tree": "f63a26afa7342eb59b125271b16e30a219b59094",
      "parents": [
        "2a79f17e4a641a2f463cb512cb0ec349844a147b"
      ],
      "author": {
        "name": "Al Viro",
        "email": "viro@zeniv.linux.org.uk",
        "time": "Mon Dec 12 15:51:45 2011 -0500"
      },
      "committer": {
        "name": "Al Viro",
        "email": "viro@zeniv.linux.org.uk",
        "time": "Tue Jan 03 22:52:40 2012 -0500"
      },
      "message": "vfs: fix the stupidity with i_dentry in inode destructors\n\nSeeing that just about every destructor got that INIT_LIST_HEAD() copied into\nit, there is no point whatsoever keeping this INIT_LIST_HEAD in inode_init_once();\nthe cost of taking it into inode_init_always() will be negligible for pipes\nand sockets and negative for everything else.  Not to mention the removal of\nboilerplate code from -\u003edestroy_inode() instances...\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n"
    },
    {
      "commit": "6d6b77f163c7eabedbba00ed2abb7d4a570bff76",
      "tree": "6ce074a7dd5a25fae28ef9de6f59ddee08ea4e61",
      "parents": [
        "dd2a981f46a0903a8770a784f213d4d40bbb6f19"
      ],
      "author": {
        "name": "Miklos Szeredi",
        "email": "mszeredi@suse.cz",
        "time": "Fri Oct 28 14:13:28 2011 +0200"
      },
      "committer": {
        "name": "Christoph Hellwig",
        "email": "hch@serles.lst.de",
        "time": "Wed Nov 02 12:53:43 2011 +0100"
      },
      "message": "filesystems: add missing nlink wrappers\n\nReplace direct i_nlink updates with the respective updater function\n(inc_nlink, drop_nlink, clear_nlink, inode_dec_link_count).\n\nSigned-off-by: Miklos Szeredi \u003cmszeredi@suse.cz\u003e\n"
    },
    {
      "commit": "dd2a981f46a0903a8770a784f213d4d40bbb6f19",
      "tree": "97429f247dda72ee6985ef1b74c377fd48c99cba",
      "parents": [
        "a7732b05f775a5575baac34c03bb0e8d16950edf"
      ],
      "author": {
        "name": "Miklos Szeredi",
        "email": "mszeredi@suse.cz",
        "time": "Fri Oct 28 14:13:27 2011 +0200"
      },
      "committer": {
        "name": "Christoph Hellwig",
        "email": "hch@serles.lst.de",
        "time": "Wed Nov 02 12:53:42 2011 +0100"
      },
      "message": "logfs: remove unnecessary nlink setting\n\nalloc_inode() initializes i_nlink to 1.  Remove unnecessary\nre-initialization.\n\nSigned-off-by: Miklos Szeredi \u003cmszeredi@suse.cz\u003e\nCC: Joern Engel \u003cjoern@logfs.org\u003e\nCC: Prasad Joshi \u003cprasadjoshi.linux@gmail.com\u003e\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\n"
    },
    {
      "commit": "f283c86afe6aa70b733d1ecebad5d9464943b774",
      "tree": "beaeca959996f2d8a00a997c56932dc5916bfec8",
      "parents": [
        "02afc410f363f98ac4f186341e38dcec13fc0e60"
      ],
      "author": {
        "name": "Dave Chinner",
        "email": "dchinner@redhat.com",
        "time": "Tue Mar 22 22:23:39 2011 +1100"
      },
      "committer": {
        "name": "Al Viro",
        "email": "viro@zeniv.linux.org.uk",
        "time": "Thu Mar 24 21:16:32 2011 -0400"
      },
      "message": "fs: remove inode_lock from iput_final and prune_icache\n\nNow that inode state changes are protected by the inode-\u003ei_lock and\nthe inode LRU manipulations by the inode_lru_lock, we can remove the\ninode_lock from prune_icache and the initial part of iput_final().\n\ninstead of using the inode_lock to protect the inode during\niput_final, use the inode-\u003ei_lock instead. This protects the inode\nagainst new references being taken while we change the inode state\nto I_FREEING, as well as preventing prune_icache from grabbing the\ninode while we are manipulating it. Hence we no longer need the\ninode_lock in iput_final prior to setting I_FREEING on the inode.\n\nFor prune_icache, we no longer need the inode_lock to protect the\nLRU list, and the inodes themselves are protected against freeing\nraces by the inode-\u003ei_lock. Hence we can lift the inode_lock from\nprune_icache as well.\n\nSigned-off-by: Dave Chinner \u003cdchinner@redhat.com\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n"
    },
    {
      "commit": "fa0d7e3de6d6fc5004ad9dea0dd6b286af8f03e9",
      "tree": "203e0f73883e4c26b5597e36042386a1237dab35",
      "parents": [
        "77812a1ef139d84270d27faacc0630c887411013"
      ],
      "author": {
        "name": "Nick Piggin",
        "email": "npiggin@kernel.dk",
        "time": "Fri Jan 07 17:49:49 2011 +1100"
      },
      "committer": {
        "name": "Nick Piggin",
        "email": "npiggin@kernel.dk",
        "time": "Fri Jan 07 17:50:26 2011 +1100"
      },
      "message": "fs: icache RCU free inodes\n\nRCU free the struct inode. This will allow:\n\n- Subsequent store-free path walking patch. The inode must be consulted for\n  permissions when walking, so an RCU inode reference is a must.\n- sb_inode_list_lock to be moved inside i_lock because sb list walkers who want\n  to take i_lock no longer need to take sb_inode_list_lock to walk the list in\n  the first place. This will simplify and optimize locking.\n- Could remove some nested trylock loops in dcache code\n- Could potentially simplify things a bit in VM land. Do not need to take the\n  page lock to follow page-\u003emapping.\n\nThe downsides of this is the performance cost of using RCU. In a simple\ncreat/unlink microbenchmark, performance drops by about 10% due to inability to\nreuse cache-hot slab objects. As iterations increase and RCU freeing starts\nkicking over, this increases to about 20%.\n\nIn cases where inode lifetimes are longer (ie. many inodes may be allocated\nduring the average life span of a single inode), a lot of this cache reuse is\nnot applicable, so the regression caused by this patch is smaller.\n\nThe cache-hot regression could largely be avoided by using SLAB_DESTROY_BY_RCU,\nhowever this adds some complexity to list walking and store-free path walking,\nso I prefer to implement this at a later date, if it is shown to be a win in\nreal situations. I haven\u0027t found a regression in any non-micro benchmark so I\ndoubt it will be a problem.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@kernel.dk\u003e\n"
    },
    {
      "commit": "45321ac54316eaeeebde0b5f728a1791e500974c",
      "tree": "c3989dd1a8b4a50168d696aa608941de88da9ade",
      "parents": [
        "30140837f256558c943636245ab90897a9455a70"
      ],
      "author": {
        "name": "Al Viro",
        "email": "viro@zeniv.linux.org.uk",
        "time": "Mon Jun 07 13:43:19 2010 -0400"
      },
      "committer": {
        "name": "Al Viro",
        "email": "viro@zeniv.linux.org.uk",
        "time": "Mon Aug 09 16:48:35 2010 -0400"
      },
      "message": "Make -\u003edrop_inode() just return whether inode needs to be dropped\n\n... and let iput_final() do the actual eviction or retention\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n"
    },
    {
      "commit": "7da08fd17a6e42d80f0f3897a5cbd682e77bcdb4",
      "tree": "cb13eeb7767279d25b954832be82a2528d20948c",
      "parents": [
        "8e22c1a4e429e9facf309c7e7a03ba9cdfd7b106"
      ],
      "author": {
        "name": "Al Viro",
        "email": "viro@zeniv.linux.org.uk",
        "time": "Mon Jun 07 13:11:34 2010 -0400"
      },
      "committer": {
        "name": "Al Viro",
        "email": "viro@zeniv.linux.org.uk",
        "time": "Mon Aug 09 16:48:28 2010 -0400"
      },
      "message": "convert logfs to -\u003eevict_inode()\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n"
    },
    {
      "commit": "8e22c1a4e429e9facf309c7e7a03ba9cdfd7b106",
      "tree": "cf708706e742d96fed8bf997feb279dc4f9a7426",
      "parents": [
        "6fd1e5c994c392ebdbe45600051b2a32ec4860f1"
      ],
      "author": {
        "name": "Al Viro",
        "email": "viro@zeniv.linux.org.uk",
        "time": "Mon Jun 07 12:22:31 2010 -0400"
      },
      "committer": {
        "name": "Al Viro",
        "email": "viro@zeniv.linux.org.uk",
        "time": "Mon Aug 09 16:48:26 2010 -0400"
      },
      "message": "logfs: get rid of magical inodes\n\nordering problems at -\u003ekill_sb() time are solved by doing iput()\nof these suckers in -\u003eput_super()\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n"
    },
    {
      "commit": "ab9a79b9669c28734a69fa9384df6fb93152e53a",
      "tree": "588fc95da1d5769eab4b0a70202d3ac17ababc8e",
      "parents": [
        "be8ded5974c69d0d2128a508b0900ef541d0e7da"
      ],
      "author": {
        "name": "Al Viro",
        "email": "viro@zeniv.linux.org.uk",
        "time": "Sat May 15 04:02:54 2010 -0400"
      },
      "committer": {
        "name": "Al Viro",
        "email": "viro@zeniv.linux.org.uk",
        "time": "Fri May 21 18:31:27 2010 -0400"
      },
      "message": "logfs: replace inode uid,gid,mode initialization with helper function\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n"
    },
    {
      "commit": "c0c79c31c9d5fcc19812c6c35f842baf50ee788a",
      "tree": "85b3ee846f70f461add9b7cb1e08f3030992e2fb",
      "parents": [
        "bba0b5c2c27e6dadc93c476f8a4b49d108b66292"
      ],
      "author": {
        "name": "Joern Engel",
        "email": "joern@logfs.org",
        "time": "Wed May 05 22:33:36 2010 +0200"
      },
      "committer": {
        "name": "Joern Engel",
        "email": "joern@logfs.org",
        "time": "Wed May 05 22:33:36 2010 +0200"
      },
      "message": "logfs: fix sync\n\nRather self-explanatory.\n\nSigned-off-by: Joern Engel \u003cjoern@logfs.org\u003e\n"
    },
    {
      "commit": "24797535e18ae219be1fc2632959327075bef5da",
      "tree": "f55288032e5c5e6c02450ca75dbbe8b8bf030a71",
      "parents": [
        "05ebad852901cf9127a743df6ea10c0e8b1590c3"
      ],
      "author": {
        "name": "Prasad Joshi",
        "email": "prasadjoshi124@gmail.com",
        "time": "Tue May 04 22:13:59 2010 +0200"
      },
      "committer": {
        "name": "Joern Engel",
        "email": "joern@logfs.org",
        "time": "Tue May 04 22:17:08 2010 +0200"
      },
      "message": "logfs: initialize li-\u003eli_refcount\n\nli_refcount was not re-initialized in function logfs_init_inode(), small\npatch that will fix the problem\n\nSigned-off-by: Prasad Joshi \u003cprasadjoshi124@gmail.com\u003e\nSigned-off-by: Joern Engel \u003cjoern@logfs.org\u003e\n"
    },
    {
      "commit": "ccc0197b02178f7e1707e659cbc5242fc94b499a",
      "tree": "6cba753c7e2c480123856275fb06845d86ac5a44",
      "parents": [
        "bd2b3f29594c50d7c5bd864d9af05d440394ee82"
      ],
      "author": {
        "name": "Joern Engel",
        "email": "joern@logfs.org",
        "time": "Sat May 01 17:00:34 2010 +0200"
      },
      "committer": {
        "name": "Joern Engel",
        "email": "joern@logfs.org",
        "time": "Sat May 01 18:02:34 2010 +0200"
      },
      "message": "logfs: Close i_ino reuse race\n\nlogfs_seek_hole() may return the same offset it is passed as argument.\nFound by Prasad Joshi \u003cprasadjoshi124@gmail.com\u003e\n\nSigned-off-by: Joern Engel \u003cjoern@logfs.org\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": "66b89159c25a47d2177743526c61b5ada7acc39e",
      "tree": "b092b859ca01d7544a666c95f940144b0ef3b35b",
      "parents": [
        "87c7ae06cc50bcbcdcc60d64a959ca0b9b71f892",
        "c2f843f03d658e9ab2a1a455f2c1851fd6a869af"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Sat Mar 06 13:18:03 2010 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Sat Mar 06 13:18:03 2010 -0800"
      },
      "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/joern/logfs\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/joern/logfs:\n  [LogFS] Change magic number\n  [LogFS] Remove h_version field\n  [LogFS] Check feature flags\n  [LogFS] Only write journal if dirty\n  [LogFS] Fix bdev erases\n  [LogFS] Silence gcc\n  [LogFS] Prevent 64bit divisions in hash_index\n  [LogFS] Plug memory leak on error paths\n  [LogFS] Add MAINTAINERS entry\n  [LogFS] add new flash file system\n\nFixed up trivial conflict in lib/Kconfig, and a semantic conflict in\nfs/logfs/inode.c introduced by write_inode() being changed to use\nwriteback_control\u0027 by commit a9185b41a4f84971b930c519f0c63bd450c4810d\n(\"pass writeback_control to -\u003ewrite_inode\")\n"
    },
    {
      "commit": "5db53f3e80dee2d9dff5e534f9e9fe1db17c9936",
      "tree": "066f2873eeb7eb86466f6389e45892d957db3de2",
      "parents": [
        "66b00a7c93ec782d118d2c03bd599cfd041e80a1"
      ],
      "author": {
        "name": "Joern Engel",
        "email": "joern@logfs.org",
        "time": "Fri Nov 20 20:13:39 2009 +0100"
      },
      "committer": {
        "name": "Joern Engel",
        "email": "joern@logfs.org",
        "time": "Fri Nov 20 20:13:39 2009 +0100"
      },
      "message": "[LogFS] add new flash file system\n\nThis is a new flash file system. See\nDocumentation/filesystems/logfs.txt\n\nSigned-off-by: Joern Engel \u003cjoern@logfs.org\u003e\n"
    }
  ]
}