)]}' { "log": [ { "commit": "c36258b5925e6cf6bf72904635100593573bfcff", "tree": "565f1ce29a7f8a2cd1c25f2d36c932727adbdbc2", "parents": [ "b434eda6fda5bcdcc2dd918e5ffbf7184f2d4e17" ], "author": { "name": "David Teigland", "email": "teigland@redhat.com", "time": "Thu Sep 27 15:53:38 2007 -0500" }, "committer": { "name": "Steven Whitehouse", "email": "swhiteho@redhat.com", "time": "Wed Oct 10 08:56:38 2007 +0100" }, "message": "[DLM] block dlm_recv in recovery transition\n\nIntroduce a per-lockspace rwsem that\u0027s held in read mode by dlm_recv\nthreads while working in the dlm. This allows dlm_recv activity to be\nsuspended when the lockspace transitions to, from and between recovery\ncycles.\n\nThe specific bug prompting this change is one where an in-progress\nrecovery cycle is aborted by a new recovery cycle. While dlm_recv was\nprocessing a recovery message, the recovery cycle was aborted and\ndlm_recoverd began cleaning up. dlm_recv decremented recover_locks_count\non an rsb after dlm_recoverd had reset it to zero. This is fixed by\nsuspending dlm_recv (taking write lock on the rwsem) before aborting the\ncurrent recovery.\n\nThe transitions to/from normal and recovery modes are simplified by using\nthis new ability to block dlm_recv. The switch from normal to recovery\nmode means dlm_recv goes from processing locking messages, to saving them\nfor later, and vice versa. Races are avoided by blocking dlm_recv when\nsetting the flag that switches between modes.\n\nSigned-off-by: David Teigland \u003cteigland@redhat.com\u003e\nSigned-off-by: Steven Whitehouse \u003cswhiteho@redhat.com\u003e\n" }, { "commit": "8b4021fa436f7c76a2299e6d85d4d4a619724e9a", "tree": "4e3be51910ede8a36d640229bb1d20d3f7547652", "parents": [ "84d8cd69a8e7f1c9962f46bc79850c9f1f663806" ], "author": { "name": "David Teigland", "email": "teigland@redhat.com", "time": "Tue May 29 08:46:00 2007 -0500" }, "committer": { "name": "Steven Whitehouse", "email": "swhiteho@redhat.com", "time": "Mon Jul 09 08:22:54 2007 +0100" }, "message": "[DLM] canceling deadlocked lock\n\nAdd a function that can be used through libdlm by a system daemon to cancel\nanother process\u0027s deadlocked lock. A completion ast with EDEADLK is returned\nto the process waiting for the lock.\n\nSigned-off-by: David Teigland \u003cteigland@redhat.com\u003e\nSigned-off-by: Steven Whitehouse \u003cswhiteho@redhat.com\u003e\n" }, { "commit": "d7db923ea4990edb5583bf54af868ba687a1bc84", "tree": "3efa0db00a3a6400f43a65aef2726fa813f9dfa2", "parents": [ "3ae1acf93a21512512f8a78430fcde5992dd208e" ], "author": { "name": "David Teigland", "email": "teigland@redhat.com", "time": "Fri May 18 09:00:32 2007 -0500" }, "committer": { "name": "Steven Whitehouse", "email": "swhiteho@redhat.com", "time": "Mon Jul 09 08:22:36 2007 +0100" }, "message": "[DLM] dlm_device interface changes [3/6]\n\nChange the user/kernel device interface used by libdlm:\n- Add ability for userspace to check the version of the interface. libdlm\n can now adapt to different versions of the kernel interface.\n- Increase the size of the flags passed in a lock request so all possible\n flags can be used from userspace.\n- Add an opaque \"xid\" value for each lock. This \"transaction id\" will be\n used later to associate locks with each other during deadlock detection.\n- Add a \"timeout\" value for each lock. This is used along with the\n DLM_LKF_TIMEOUT flag.\n\nAlso, remove a fragment of unused code in device_read().\n\nThis patch requires updating libdlm which is backward compatible with\nolder kernels.\n\nSigned-off-by: David Teigland \u003cteigland@redhat.com\u003e\nSigned-off-by: Steven Whitehouse \u003cswhiteho@redhat.com\u003e\n" }, { "commit": "3ae1acf93a21512512f8a78430fcde5992dd208e", "tree": "878ed3c619530c6acf862ecf663063f66fc47a06", "parents": [ "85e86edf951a8a39954c0ba1edbe4a58827dcd5c" ], "author": { "name": "David Teigland", "email": "teigland@redhat.com", "time": "Fri May 18 08:59:31 2007 -0500" }, "committer": { "name": "Steven Whitehouse", "email": "swhiteho@redhat.com", "time": "Mon Jul 09 08:22:33 2007 +0100" }, "message": "[DLM] add lock timeouts and warnings [2/6]\n\nNew features: lock timeouts and time warnings. If the DLM_LKF_TIMEOUT\nflag is set, then the request/conversion will be canceled after waiting\nthe specified number of centiseconds (specified per lock). This feature\nis only available for locks requested through libdlm (can be enabled for\nkernel dlm users if there\u0027s a use for it.)\n\nIf the new DLM_LSFL_TIMEWARN flag is set when creating the lockspace, then\na warning message will be sent to userspace (using genetlink) after a\nrequest/conversion has been waiting for a given number of centiseconds\n(configurable per node). The time warnings will be used in the future\nto do deadlock detection in userspace.\n\nSigned-off-by: David Teigland \u003cteigland@redhat.com\u003e\nSigned-off-by: Steven Whitehouse \u003cswhiteho@redhat.com\u003e\n" }, { "commit": "85e86edf951a8a39954c0ba1edbe4a58827dcd5c", "tree": "0d605cdea61d8301c20a87784456a660aba89017", "parents": [ "916297aad5de2363dccd531873eda55d4d6afb57" ], "author": { "name": "David Teigland", "email": "teigland@redhat.com", "time": "Fri May 18 08:58:15 2007 -0500" }, "committer": { "name": "Steven Whitehouse", "email": "swhiteho@redhat.com", "time": "Mon Jul 09 08:22:31 2007 +0100" }, "message": "[DLM] block scand during recovery [1/6]\n\nDon\u0027t let dlm_scand run during recovery since it may try to do a resource\ndirectory removal while the directory nodes are changing.\n\nSigned-off-by: David Teigland \u003cteigland@redhat.com\u003e\nSigned-off-by: Steven Whitehouse \u003cswhiteho@redhat.com\u003e\n" }, { "commit": "72c2be776bd6eec5186e316e6d9dd4aab78d314d", "tree": "378338f229887375efbb3388068a148227b72b23", "parents": [ "8499137d4ef1829281e04838113b6b09a0bf1269" ], "author": { "name": "David Teigland", "email": "teigland@redhat.com", "time": "Fri Mar 30 15:06:16 2007 -0500" }, "committer": { "name": "Steven Whitehouse", "email": "swhiteho@redhat.com", "time": "Tue May 01 09:11:12 2007 +0100" }, "message": "[DLM] interface for purge (2/2)\n\nAdd code to accept purge commands from userland.\n\nSigned-off-by: David Teigland \u003cteigland@redhat.com\u003e\nSigned-off-by: Steven Whitehouse \u003cswhiteho@redhat.com\u003e\n" }, { "commit": "a345da3e8f28ff69e1b14df78f7ddc6e7b78b726", "tree": "a1aa40c1aae01064b64b953c9b4a16180dd82be9", "parents": [ "15d00c0b91ca776b51b5ab04f79ab35b06670d30" ], "author": { "name": "David Teigland", "email": "teigland@redhat.com", "time": "Fri Aug 18 11:54:25 2006 -0500" }, "committer": { "name": "Steven Whitehouse", "email": "swhiteho@redhat.com", "time": "Mon Aug 21 09:50:09 2006 -0400" }, "message": "[DLM] dump rsb and locks on assert\n\nIntroduce new function dlm_dump_rsb() to call within assertions instead of\ndlm_print_rsb(). The new function dumps info about all locks on the rsb\nin addition to rsb details.\n\nSigned-off-by: David Teigland \u003cteigland@redhat.com\u003e\nSigned-off-by: Steven Whitehouse \u003cswhiteho@redhat.com\u003e\n" }, { "commit": "597d0cae0f99f62501e229bed50e8149604015bb", "tree": "b6cab09ff6fe2246740848164c0a52d5c03136a0", "parents": [ "2eb168ca94aba3bcae350ad9b31870955174a218" ], "author": { "name": "David Teigland", "email": "teigland@redhat.com", "time": "Wed Jul 12 16:44:04 2006 -0500" }, "committer": { "name": "Steven Whitehouse", "email": "swhiteho@redhat.com", "time": "Thu Jul 13 09:25:34 2006 -0400" }, "message": "[DLM] dlm: user locks\n\nThis changes the way the dlm handles user locks. The core dlm is now\naware of user locks so they can be dealt with more efficiently. There is\nno more dlm_device module which previously managed its own duplicate copy\nof every user lock.\n\nSigned-off-by: Patrick Caulfield \u003cpcaulfie@redhat.com\u003e\nSigned-off-by: David Teigland \u003cteigland@redhat.com\u003e\nSigned-off-by: Steven Whitehouse \u003cswhiteho@redhat.com\u003e\n\n" }, { "commit": "97a35d1e5fab9ff8de27814082b78b2fc9ad94f0", "tree": "551025da17641ccc4df7378da2bb94cedfb2482e", "parents": [ "d2d7b8a2a756fb520792ca3db3abdeed9214ae5b" ], "author": { "name": "David Teigland", "email": "teigland@redhat.com", "time": "Tue May 02 13:34:03 2006 -0400" }, "committer": { "name": "Steven Whitehouse", "email": "swhiteho@redhat.com", "time": "Tue May 02 13:34:03 2006 -0400" }, "message": "[DLM] fix grant_after_purge softlockup\n\nIn dlm_grant_after_purge() we were holding a hash table read_lock while\ncalling put_rsb() which potentially removes the rsb from the hash table,\ntaking the same lock in write. Fix this by flagging rsb\u0027s ahead of time\nthat have been purged. Then iteratively read_lock the hash table, find a\nflagged rsb, unlock, process rsb.\n\nSigned-off-by: David Teigland \u003cteigland@redhat.com\u003e\nSigned-off-by: Steven Whitehouse \u003cswhiteho@redhat.com\u003e\n" }, { "commit": "901359256b2666f52a3a7d3f31927677e91b3a2a", "tree": "24d4ee2c1ad63a0e6c3a303ad67eac3342772c4f", "parents": [ "ec5800246607183a1d7fd0bae5f087c12439e9e7" ], "author": { "name": "David Teigland", "email": "teigland@redhat.com", "time": "Fri Jan 20 08:47:07 2006 +0000" }, "committer": { "name": "Steven Whitehouse", "email": "steve@chygwyn.com", "time": "Fri Jan 20 08:47:07 2006 +0000" }, "message": "[DLM] Update DLM to the latest patch level\n\nSigned-off-by: David Teigland \u003cteigland@redhat.com\u003e\nSigned-off-by: Steve Whitehouse \u003cswhiteho@redhat.com\u003e\n" }, { "commit": "e7fd41792fc0ee52a05fcaac87511f118328d147", "tree": "eee5227088ba97daef795e385b7548d2a1cc4cb6", "parents": [ "e47314207032cfd1157b8c377df162839b32ea6f" ], "author": { "name": "David Teigland", "email": "teigland@redhat.com", "time": "Wed Jan 18 09:30:29 2006 +0000" }, "committer": { "name": "Steven Whitehouse", "email": "swhiteho@redhat.com", "time": "Wed Jan 18 09:30:29 2006 +0000" }, "message": "[DLM] The core of the DLM for GFS2/CLVM\n\nThis is the core of the distributed lock manager which is required\nto use GFS2 as a cluster filesystem. It is also used by CLVM and\ncan be used as a standalone lock manager independantly of either\nof these two projects.\n\nIt implements VAX-style locking modes.\n\nSigned-off-by: David Teigland \u003cteigland@redhat.com\u003e\nSigned-off-by: Steve Whitehouse \u003cswhiteho@redhat.com\u003e\n" } ] }