)]}'
{
  "log": [
    {
      "commit": "b6aa5901c7a2bd90d0b6b9866300d2648b2568f3",
      "tree": "1161ed9dbacb7ace73c5d48fc9acd1db0d7815d5",
      "parents": [
        "92cf765237e2787eb168096305c448caf25ac7f8"
      ],
      "author": {
        "name": "Henry C Chang",
        "email": "henry_c_chang@tcloudcomputing.com",
        "time": "Wed Dec 15 20:45:41 2010 -0800"
      },
      "committer": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Fri Dec 17 09:54:40 2010 -0800"
      },
      "message": "ceph: mark user pages dirty on direct-io reads\n\nFor read operation, we have to set the argument _write_ of get_user_pages\nto 1 since we will write data to pages. Also, we need to SetPageDirty before\nreleasing these pages.\n\nSigned-off-by: Henry C Chang \u003chenry_c_chang@tcloudcomputing.com\u003e\nSigned-off-by: Sage Weil \u003csage@newdream.net\u003e\n"
    },
    {
      "commit": "ab226e21ad34f6ef52e00d2ab399d2364b4cdfee",
      "tree": "95b9683b601a0602d9f813f7e6786e9a0e6da118",
      "parents": [
        "d96c9043d1588f04c7f467167f653c07d83232d5"
      ],
      "author": {
        "name": "Henry C Chang",
        "email": "henry_c_chang@tcloudcomputing.com",
        "time": "Wed Dec 15 20:41:54 2010 -0800"
      },
      "committer": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Wed Dec 15 20:46:16 2010 -0800"
      },
      "message": "ceph: fix direct-io on non-page-aligned buffers\n\nThe user buffer may be 512-byte aligned, not page-aligned.  We were\nassuming the buffer was page-aligned and only accounting for\nnon-page-aligned io offsets.\n\nSigned-off-by: Henry C Chang \u003chenry_c_chang@tcloudcomputing.com\u003e\nSigned-off-by: Sage Weil \u003csage@newdream.net\u003e\n"
    },
    {
      "commit": "b7495fc2ff941db6a118a93ab8d61149e3f4cef8",
      "tree": "231c339d74760e2fa13e5e6f41c10bc28cea51b3",
      "parents": [
        "e98b6fed84d0f0155d7b398e0dfeac74c792f2d0"
      ],
      "author": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Tue Nov 09 12:43:12 2010 -0800"
      },
      "committer": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Tue Nov 09 12:43:12 2010 -0800"
      },
      "message": "ceph: make page alignment explicit in osd interface\n\nWe used to infer alignment of IOs within a page based on the file offset,\nwhich assumed they matched.  This broke with direct IO that was not aligned\nto pages (e.g., 512-byte aligned IO).  We were also trusting the alignment\nspecified in the OSD reply, which could have been adjusted by the server.\n\nExplicitly specify the page alignment when setting up OSD IO requests.\n\nSigned-off-by: Sage Weil \u003csage@newdream.net\u003e\n"
    },
    {
      "commit": "e98b6fed84d0f0155d7b398e0dfeac74c792f2d0",
      "tree": "0762cba398c39329dc5f056ddfccebf6768d2555",
      "parents": [
        "d8672d64b88cdb7aa8139fb6d218f40b8cbf60af"
      ],
      "author": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Tue Nov 09 12:24:53 2010 -0800"
      },
      "committer": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Tue Nov 09 12:24:53 2010 -0800"
      },
      "message": "ceph: fix comment, remove extraneous args\n\nThe offset/length arguments aren\u0027t used.\n\nSigned-off-by: Sage Weil \u003csage@newdream.net\u003e\n"
    },
    {
      "commit": "7421ab8041d98363edfb85955fa3b9849ffae366",
      "tree": "d1ae0dbaf56ed8f56849f4199626a303ec86b03d",
      "parents": [
        "d8b16b3d1c9d8d9124d647d05797383d35e2d645"
      ],
      "author": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Sun Nov 07 09:07:15 2010 -0800"
      },
      "committer": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Sun Nov 07 09:07:15 2010 -0800"
      },
      "message": "ceph: fix open for write on clustered mds\n\nNormally when we open a file we already have a cap, and simply update the\nwanted set.  However, if we open a file for write, but don\u0027t have an auth\ncap, that doesn\u0027t work; we need to open a new cap with the auth MDS.  Only\nreuse existing caps if we are opening for read or the existing cap is auth.\n\nSigned-off-by: Sage Weil \u003csage@newdream.net\u003e\n"
    },
    {
      "commit": "3d14c5d2b6e15c21d8e5467dc62d33127c23a644",
      "tree": "7d123c47847df9d1e865b6b78dc7da3fe739b704",
      "parents": [
        "ae1533b62b3369e6ae32338f4a77d64d0e88f676"
      ],
      "author": {
        "name": "Yehuda Sadeh",
        "email": "yehuda@hq.newdream.net",
        "time": "Tue Apr 06 15:14:15 2010 -0700"
      },
      "committer": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Wed Oct 20 15:37:28 2010 -0700"
      },
      "message": "ceph: factor out libceph from Ceph file system\n\nThis factors out protocol and low-level storage parts of ceph into a\nseparate libceph module living in net/ceph and include/linux/ceph.  This\nis mostly a matter of moving files around.  However, a few key pieces\nof the interface change as well:\n\n - ceph_client becomes ceph_fs_client and ceph_client, where the latter\n   captures the mon and osd clients, and the fs_client gets the mds client\n   and file system specific pieces.\n - Mount option parsing and debugfs setup is correspondingly broken into\n   two pieces.\n - The mon client gets a generic handler callback for otherwise unknown\n   messages (mds map, in this case).\n - The basic supported/required feature bits can be expanded (and are by\n   ceph_fs_client).\n\nNo functional change, aside from some subtle error handling cases that got\ncleaned up in the refactoring process.\n\nSigned-off-by: Sage Weil \u003csage@newdream.net\u003e\n"
    },
    {
      "commit": "936aeb5c4a9fa799abd7d630a94223acedcaad50",
      "tree": "377c2b25d450975e928012c8d9b7c12214b62428",
      "parents": [
        "cb655d0f3d57c23db51b981648e452988c0223f9"
      ],
      "author": {
        "name": "Henry C Chang",
        "email": "henry_c_chang@tcloudcomputing.com",
        "time": "Wed Sep 22 20:21:17 2010 -0700"
      },
      "committer": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Thu Oct 07 08:00:23 2010 -0700"
      },
      "message": "ceph: fix list_add usage on unsafe_writes list\n\nFix argument order.\n\nSigned-off-by: Henry C Chang \u003chenry_c_chang@tcloudcomputing.com\u003e\nSigned-off-by: Sage Weil \u003csage@newdream.net\u003e\n"
    },
    {
      "commit": "213c99ee0cf17ff0fbffb6fb540bd29615cd19d5",
      "tree": "168f72ba71feff5bf24707be622135b1016cdff5",
      "parents": [
        "40819f6fb227c1832935b775ac22aef10aa6f6dd"
      ],
      "author": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Tue Aug 03 10:25:11 2010 -0700"
      },
      "committer": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Tue Aug 03 10:25:11 2010 -0700"
      },
      "message": "ceph: whitespace cleanup\n\nSigned-off-by: Sage Weil \u003csage@newdream.net\u003e\n"
    },
    {
      "commit": "40819f6fb227c1832935b775ac22aef10aa6f6dd",
      "tree": "14f3e73f9585cc157ab2daab487c7b3964394fe2",
      "parents": [
        "fbaad9797a761c2d5ff6e755bbb4c046207a1ca2"
      ],
      "author": {
        "name": "Greg Farnum",
        "email": "gregf@hq.newdream.net",
        "time": "Mon Aug 02 15:34:23 2010 -0700"
      },
      "committer": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Mon Aug 02 16:10:53 2010 -0700"
      },
      "message": "ceph: add flock/fcntl lock support\n\nImplement flock inode operation to support advisory file locking.  All\nlock/unlock operations are synchronous with the MDS.  Lock state is\nsent when reconnecting to a recovering MDS to restore the shared lock\nstate.\n\nSigned-off-by: Greg Farnum \u003cgregf@hq.newdream.net\u003e\nSigned-off-by: Sage Weil \u003csage@newdream.net\u003e\n"
    },
    {
      "commit": "cd84db6e4051a9fb7941d49d31a0193a3371fd61",
      "tree": "beb657b2cc6b4184d97a85502b29a291616a83ab",
      "parents": [
        "ca81f3f6bd759f90a4b940cddda1f8bc61a7725a"
      ],
      "author": {
        "name": "Yehuda Sadeh",
        "email": "yehuda@hq.newdream.net",
        "time": "Fri Jun 11 16:58:48 2010 -0700"
      },
      "committer": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Sun Aug 01 20:11:40 2010 -0700"
      },
      "message": "ceph: code cleanup\n\nMainly fixing minor issues reported by sparse.\n\nSigned-off-by: Yehuda Sadeh \u003cyehuda@hq.newdream.net\u003e\nSigned-off-by: Sage Weil \u003csage@newdream.net\u003e\n"
    },
    {
      "commit": "2962507ca204f886967e1a089d9bec206d427c22",
      "tree": "e9cec16b13ad1d8e41c288658e62fb3bf1c66859",
      "parents": [
        "33caad324b88f75f42d836735d86feaafb3b40cf"
      ],
      "author": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Thu May 27 10:40:43 2010 -0700"
      },
      "committer": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Sun Aug 01 20:11:39 2010 -0700"
      },
      "message": "ceph: perform lazy reads when file mode and caps permit\n\nIf the file mode is marked as \"lazy,\" perform cached/buffered reads when\nthe caps permit it.  Adjust the rdcache_gen and invalidation logic\naccordingly so that we manage our cache based on the FILE_CACHE -or-\nFILE_LAZYIO cap bits.\n\nSigned-off-by: Sage Weil \u003csage@newdream.net\u003e\n"
    },
    {
      "commit": "33caad324b88f75f42d836735d86feaafb3b40cf",
      "tree": "57e50ce5bdc181ea296191784c4d57999c51207e",
      "parents": [
        "8c6e9229fc1989cf263a6fcd4ff406d7f473f966"
      ],
      "author": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Wed May 26 14:31:27 2010 -0700"
      },
      "committer": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Sun Aug 01 20:11:39 2010 -0700"
      },
      "message": "ceph: perform lazy writes when file mode and caps permit\n\nIf we have marked a file as \"lazy\" (using the ceph ioctl), perform buffered\nwrites when the MDS caps allow it.\n\nSigned-off-by: Sage Weil \u003csage@newdream.net\u003e\n"
    },
    {
      "commit": "03066f23452ff088ad8e2c8acdf4443043f35b51",
      "tree": "37f03df4e28de87339cec3b88e479073c8cee958",
      "parents": [
        "25848b3ec681c7018e3746dd850c1e8ed0a3dd6b"
      ],
      "author": {
        "name": "Yehuda Sadeh",
        "email": "yehuda@hq.newdream.net",
        "time": "Tue Jul 27 13:11:08 2010 -0700"
      },
      "committer": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Tue Jul 27 13:11:17 2010 -0700"
      },
      "message": "ceph: use complete_all and wake_up_all\n\nThis fixes an issue triggered by running concurrent syncs. One of the syncs\nwould go through while the other would just hang indefinitely. In any case, we\nnever actually want to wake a single waiter, so the *_all functions should\nbe used.\n\nSigned-off-by: Yehuda Sadeh \u003cyehuda@hq.newdream.net\u003e\nSigned-off-by: Sage Weil \u003csage@newdream.net\u003e\n"
    },
    {
      "commit": "b612a0553714c6b9744ad0d03f10cac78f3a84b1",
      "tree": "9dfb5cb5d13c187ff1f54448f8441512203625d0",
      "parents": [
        "52b0ace7dfe8f70350218017a95d7cab1eb41fbb",
        "2a8e5e3637e2fc058798f5d3626f525729ffaaaf"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Sun May 30 08:56:39 2010 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Sun May 30 08:56:39 2010 -0700"
      },
      "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:\n  ceph: clean up on forwarded aborted mds request\n  ceph: fix leak of osd authorizer\n  ceph: close out mds, osd connections before stopping auth\n  ceph: make lease code DN specific\n  fs/ceph: Use ERR_CAST\n  ceph: renew auth tickets before they expire\n  ceph: do not resend mon requests on auth ticket renewal\n  ceph: removed duplicated #includes\n  ceph: avoid possible null dereference\n  ceph: make mds requests killable, not interruptible\n  sched: add wait_for_completion_killable_timeout\n"
    },
    {
      "commit": "7e34bc524ecae3a04d8cc427ee76ddad826a937b",
      "tree": "5065eb0e287e450aef2d8e03e3a18d8f895a4c9e",
      "parents": [
        "a41359fa355e7b450c610ed8e913d5d75c3c9c3b"
      ],
      "author": {
        "name": "Julia Lawall",
        "email": "julia@diku.dk",
        "time": "Sat May 22 12:01:14 2010 +0200"
      },
      "committer": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Sat May 29 09:12:41 2010 -0700"
      },
      "message": "fs/ceph: Use ERR_CAST\n\nUse ERR_CAST(x) rather than ERR_PTR(PTR_ERR(x)).  The former makes more\nclear what is the purpose of the operation, which otherwise looks like a\nno-op.\n\nIn the case of fs/ceph/inode.c, ERR_CAST is not needed, because the type of\nthe returned value is the same as the type of the enclosing function.\n\nThe semantic patch that makes this change is as follows:\n(http://coccinelle.lip6.fr/)\n\n// \u003csmpl\u003e\n@@\ntype T;\nT x;\nidentifier f;\n@@\n\nT f (...) { \u003c+...\n- ERR_PTR(PTR_ERR(x))\n+ x\n ...+\u003e }\n\n@@\nexpression x;\n@@\n\n- ERR_PTR(PTR_ERR(x))\n+ ERR_CAST(x)\n// \u003c/smpl\u003e\n\nSigned-off-by: Julia Lawall \u003cjulia@diku.dk\u003e\nSigned-off-by: Sage Weil \u003csage@newdream.net\u003e\n"
    },
    {
      "commit": "6e188240ebc2a132d70924942d7c8b9acb46e11a",
      "tree": "7628df39f9c1d60a639504faaf6b5941b2c4b4ae",
      "parents": [
        "62a11ae3405b6da2535d28e5facc2de5af4a7e62",
        "240ed68eb567d80dd6bab739341999a5ab0ad55d"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Mon May 24 07:37:52 2010 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Mon May 24 07:37:52 2010 -0700"
      },
      "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (59 commits)\n  ceph: reuse mon subscribe message instead of allocated anew\n  ceph: avoid resending queued message to monitor\n  ceph: Storage class should be before const qualifier\n  ceph: all allocation functions should get gfp_mask\n  ceph: specify max_bytes on readdir replies\n  ceph: cleanup pool op strings\n  ceph: Use kzalloc\n  ceph: use common helper for aborted dir request invalidation\n  ceph: cope with out of order (unsafe after safe) mds reply\n  ceph: save peer feature bits in connection structure\n  ceph: resync headers with userland\n  ceph: use ceph. prefix for virtual xattrs\n  ceph: throw out dirty caps metadata, data on session teardown\n  ceph: attempt mds reconnect if mds closes our session\n  ceph: clean up send_mds_reconnect interface\n  ceph: wait for mds OPEN reply to indicate reconnect success\n  ceph: only send cap releases when mds is OPEN|HUNG\n  ceph: dicard cap releases on mds restart\n  ceph: make mon client statfs handling more generic\n  ceph: drop src address(es) from message header [new protocol feature]\n  ...\n"
    },
    {
      "commit": "8018ab057480974e7f26a387bf4ce040e9a5f6f1",
      "tree": "98298180bf60797a028eca4f24234dc67d38a9d4",
      "parents": [
        "e970a573ce30a3976234dcfb67906c164b0df9ee"
      ],
      "author": {
        "name": "Christoph Hellwig",
        "email": "hch@lst.de",
        "time": "Mon Mar 22 17:32:25 2010 +0100"
      },
      "committer": {
        "name": "Al Viro",
        "email": "viro@zeniv.linux.org.uk",
        "time": "Fri May 21 18:31:21 2010 -0400"
      },
      "message": "sanitize vfs_fsync calling conventions\n\nNow that the last user passing a NULL file pointer is gone we can remove\nthe redundant dentry argument and associated hacks inside vfs_fsynmc_range.\n\nThe next step will be removig the dentry argument from -\u003efsync, but given\nthe luck with the last round of method prototype changes I\u0027d rather\ndefer this until after the main merge window.\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n"
    },
    {
      "commit": "34d23762d988b7dcb08390ac72a353df3d60193c",
      "tree": "3a49d039527548697165da2b8789f3588b95ffed",
      "parents": [
        "23804d91f112df09b832cd091b71af4dc2831aa8"
      ],
      "author": {
        "name": "Yehuda Sadeh",
        "email": "yehuda@hq.newdream.net",
        "time": "Tue Apr 06 14:33:58 2010 -0700"
      },
      "committer": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Mon May 17 15:25:42 2010 -0700"
      },
      "message": "ceph: all allocation functions should get gfp_mask\n\nThis is essential, as for the rados block device we\u0027ll need\nto run in different contexts that would need flags that\nare other than GFP_NOFS.\n\nSigned-off-by: Yehuda Sadeh \u003cyehuda@hq.newdream.net\u003e\nSigned-off-by: Sage Weil \u003csage@newdream.net\u003e\n"
    },
    {
      "commit": "a79832f26be370ee26ea81eecdfd42d10e49d66a",
      "tree": "59d55f3c928558505a420830eddfb01b3186d467",
      "parents": [
        "d52f847a841bfeba0ea87a7842732d388a1ca2e8"
      ],
      "author": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Thu Apr 01 16:06:19 2010 -0700"
      },
      "committer": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Mon May 17 15:25:18 2010 -0700"
      },
      "message": "ceph: make ceph_msg_new return NULL on failure; clean up, fix callers\n\nReturning ERR_PTR(-ENOMEM) is useless extra work.  Return NULL on failure\ninstead, and fix up the callers (about half of which were wrong anyway).\n\nSigned-off-by: Sage Weil \u003csage@newdream.net\u003e\n"
    },
    {
      "commit": "640ef79d27c81b7a3265a344ec1d25644dd463ad",
      "tree": "f5632a0b2a2f6cef7c6f3a513bbb6020d6ac694a",
      "parents": [
        "2d06eeb877581a7f53209af1582c5f66c799f0bd"
      ],
      "author": {
        "name": "Cheng Renquan",
        "email": "crquan@gmail.com",
        "time": "Fri Mar 26 17:40:33 2010 +0800"
      },
      "committer": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Mon May 17 15:25:17 2010 -0700"
      },
      "message": "ceph: use ceph_sb_to_client instead of ceph_client\n\nceph_sb_to_client and ceph_client are really identical, we need to dump\none; while function ceph_client is confusing with \"struct ceph_client\",\nceph_sb_to_client\u0027s definition is more clear; so we\u0027d better switch all\ncall to ceph_sb_to_client.\n\n  -static inline struct ceph_client *ceph_client(struct super_block *sb)\n  -{\n  -\treturn sb-\u003es_fs_info;\n  -}\n\nSigned-off-by: Cheng Renquan \u003ccrquan@gmail.com\u003e\nSigned-off-by: Sage Weil \u003csage@newdream.net\u003e\n"
    },
    {
      "commit": "31459fe4b24c1e09712eff0d82a5276f4fd0e3cf",
      "tree": "b5f7b4c1bac0eb93cef51443373909eb91c43cc4",
      "parents": [
        "f553069e5d7c6f53688ae4470173fcb1be97cbe7"
      ],
      "author": {
        "name": "Yehuda Sadeh",
        "email": "yehuda@hq.newdream.net",
        "time": "Wed Mar 17 13:54:02 2010 -0700"
      },
      "committer": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Mon May 17 15:25:12 2010 -0700"
      },
      "message": "ceph: use __page_cache_alloc and add_to_page_cache_lru\n\nFollowing Nick Piggin patches in btrfs, pagecache pages should be\nallocated with __page_cache_alloc, so they obey pagecache memory\npolicies.\n\nAlso, using add_to_page_cache_lru instead of using a private\npagevec where applicable.\n\nSigned-off-by: Yehuda Sadeh \u003cyehuda@hq.newdream.net\u003e\nSigned-off-by: Sage Weil \u003csage@newdream.net\u003e\n"
    },
    {
      "commit": "5c6a2cdb4fe8aaf6b54f022c14f13d2a12b45914",
      "tree": "68b777f391b68f91ba8c587ded4f9d9526f9279a",
      "parents": [
        "ae18756b9fa7bb93132cff06cd8575e3d46633f9"
      ],
      "author": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Thu Apr 22 13:48:59 2010 -0700"
      },
      "committer": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Mon May 03 10:49:25 2010 -0700"
      },
      "message": "ceph: fix direct io truncate offset\n\ntruncate_inode_pages_range wants the end offset to align with the last byte\nin a page.\n\nSigned-off-by: Sage Weil \u003csage@newdream.net\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": "195d3ce2cc9a8ec69827f6369c41b269345b9988",
      "tree": "9ef91489d379ac612895b6ab3118535969aba152",
      "parents": [
        "6f863e712d4114e8ae2f02de64ebeac0546ebaa0"
      ],
      "author": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Mon Mar 01 09:57:54 2010 -0800"
      },
      "committer": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Mon Mar 01 15:28:00 2010 -0800"
      },
      "message": "ceph: return EBADF if waiting for caps on closed file\n\nVerify the file is actually open for the given caps when we are\nwaiting for caps.  This ensures we will wake up and return EBADF\nif another thread closes the file out from under us.\n\nNote that EBADF is also the correct return code from write(2)\nwhen called on a file handle opened for reading (although the\nvfs should catch that).\n\nSigned-off-by: Sage Weil \u003csage@newdream.net\u003e\n"
    },
    {
      "commit": "88d892a37fc231ab2aa3b1c40ca9d67224616594",
      "tree": "48ce9b4645716848a20852f552efa8cad87eabe2",
      "parents": [
        "a1ea787c7b6ec036d169d84e08cca7b6e399ba70"
      ],
      "author": {
        "name": "Yehuda Sadeh",
        "email": "yehuda@hq.newdream.net",
        "time": "Tue Feb 23 18:16:23 2010 +0000"
      },
      "committer": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Tue Feb 23 14:26:36 2010 -0800"
      },
      "message": "ceph: don\u0027t clobber write return value when using O_SYNC\n\nSigned-off-by: Yehuda Sadeh \u003cyehuda@hq.newdream.net\u003e\nSigned-off-by: Sage Weil \u003csage@newdream.net\u003e\n"
    },
    {
      "commit": "6a026589ba333185c466c906376fe022a27a53f9",
      "tree": "7c536163e2192928978b79d5a6bbd79dd5993777",
      "parents": [
        "68c283236a1e0772e1a469dd2ffc17afc300b07b"
      ],
      "author": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Tue Feb 09 14:04:02 2010 -0800"
      },
      "committer": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Thu Feb 11 11:48:53 2010 -0800"
      },
      "message": "ceph: fix sync read eof check deadlock\n\nIf a sync read gets a short result from the OSD, it may need to do a\ngetattr to see if it is short due to reaching end-of-file.  The getattr\nwas being done while holding a reference to FILE_RD, which can lead to\na deadlock if the MDS is revoking that capability bit and can\u0027t process\nthe getattr until it does.\n\nWe fix this by setting a flag if EOF size validation is needed, and doing\nthe getattr in ceph_aio_read, after the RD cap ref is dropped.  If the\nread needs to be continued, we loop and continue traversing the file.\n\nSigned-off-by: Sage Weil \u003csage@newdream.net\u003e\n"
    },
    {
      "commit": "29065a513aa4c7e4b46b77cbcd25f814a4ca0bfe",
      "tree": "74607baf067fe47a5eeeeb07257186fdd15de989",
      "parents": [
        "3d497d858ae6e5f23a28783030aecc69074e102d"
      ],
      "author": {
        "name": "Yehuda Sadeh",
        "email": "yehuda@hq.newdream.net",
        "time": "Tue Feb 09 11:14:41 2010 -0800"
      },
      "committer": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Thu Feb 11 11:48:51 2010 -0800"
      },
      "message": "ceph: sync read/write considers page cache\n\nIn the cases where we either do a sync read or a write, we\nneed to make sure that everything in the page cache is flushed.\nIn the case of a sync write we invalidate the relevant pages,\nso that subsequent read/write reflects the new data written.\n\nSigned-off-by: Yehuda Sadeh \u003cyehuda@hq.newdream.net\u003e\nSigned-off-by: Sage Weil \u003csage@newdream.net\u003e\n"
    },
    {
      "commit": "972f0d3ab1a15cb5d790dd8c53903066084b28f2",
      "tree": "42d47841a5bee10cea81c8e1eb44b6bc4f1f942e",
      "parents": [
        "02f90c61096ec3ad691e808a4aa7ca5a06e550ec"
      ],
      "author": {
        "name": "Yehuda Sadeh",
        "email": "yehuda@hq.newdream.net",
        "time": "Thu Feb 04 13:41:41 2010 -0800"
      },
      "committer": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Thu Feb 11 11:48:49 2010 -0800"
      },
      "message": "ceph: fix short synchronous reads\n\nZeroing of holes was not done correctly: page_off was miscalculated and\nzeroing the tail didn\u0027t not adjust the \u0027read\u0027 value to include the zeroed\nportion.\n\nSigned-off-by: Yehuda Sadeh \u003cyehuda@hq.newdream.net\u003e\nSigned-off-by: Sage Weil \u003csage@newdream.net\u003e\n"
    },
    {
      "commit": "6a4ef48103a78a46b80e07fcd8ac4edda0c7128f",
      "tree": "b9cf0fcb4e83400b10e3e3940f274dd9724a2499",
      "parents": [
        "93cea5bebf91319095db866163a7e35c3e77d8f2"
      ],
      "author": {
        "name": "Yehuda Sadeh",
        "email": "yehuda@hq.newdream.net",
        "time": "Thu Dec 31 12:04:58 2009 -0800"
      },
      "committer": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Wed Jan 06 16:05:20 2010 -0800"
      },
      "message": "ceph: fix copy_user_to_page_vector()\n\nThe function was broken in the case where there was more than one page\ninvolved, broke the ceph sync_write case.\n\nSigned-off-by: Yehuda Sadeh \u003cyehuda@hq.newdream.net\u003e\nSigned-off-by: Sage Weil \u003csage@newdream.net\u003e\n"
    },
    {
      "commit": "6a18be16f7513ea8a4923c161ce073987932cbdb",
      "tree": "ebd337329a22deb4289379dd7ccfb0e5db6bd72c",
      "parents": [
        "51042122d4f85e0f8ee577a4230f172fcc57c456"
      ],
      "author": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Wed Nov 04 11:40:05 2009 -0800"
      },
      "committer": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Wed Nov 04 16:36:12 2009 -0800"
      },
      "message": "ceph: fix sparse endian warning\n\nUse the __le macro, even though for -1 it doesn\u0027t matter.\n\nSigned-off-by: Sage Weil \u003csage@newdream.net\u003e\n"
    },
    {
      "commit": "124e68e74099090e28da5518f73fda878e7e8232",
      "tree": "392c4861271b7c5ea1049832828c42a4c6ec9916",
      "parents": [
        "2817b000b02c5f0c05af67c01fb2684e1381d6ef"
      ],
      "author": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Tue Oct 06 11:31:08 2009 -0700"
      },
      "committer": {
        "name": "Sage Weil",
        "email": "sage@newdream.net",
        "time": "Tue Oct 06 11:31:08 2009 -0700"
      },
      "message": "ceph: file operations\n\nFile open and close operations, and read and write methods that ensure\nwe have obtained the proper capabilities from the MDS cluster before\nperforming IO on a file.  We take references on held capabilities for\nthe duration of the read/write to avoid prematurely releasing them\nback to the MDS.\n\nWe implement two main paths for read and write: one that is buffered\n(and uses generic_aio_{read,write}), and one that is fully synchronous\nand blocking (operating either on a __user pointer or, if O_DIRECT,\ndirectly on user pages).\n\nSigned-off-by: Sage Weil \u003csage@newdream.net\u003e\n"
    }
  ]
}