4 - orphans are moved into the PENDING directory for possible recovery
5 - replayed opens now open by fid for orphan/rename safety (1042)
6 - last close of an orphan inode generates a transno (683)
7 - chdir() and mount() now pin the directory entry (1020)
8 - avoid CERROR in normal ll_setattr_raw() error case (1500)
9 - discard very old requests without processing them (1502)
10 - remove some common, well-understood CERRORs (1505)
11 - require O_DIRECT I/O to be page-sized to workaround IA64 crash (1609)
12 - clear "grant" flags in OST replies until OST grant code lands (1644)
13 - fix read performance by not clobbering i_blksize on client (1598)
14 - fix __ldlm_handle2lock oops by not dereferencing lock after PUT (1625)
15 - make LRU size a /proc tunable, clears locks when reduced (707)
16 - fix some lprocfs rot that prevented ptlbd from loading (1732)
17 - server locks take references on exports now (1558)
18 - build fixes for 2.4.20-rh trees (1663)
19 - return an error from lov_create if all OSCs are inactive (1751)
20 - fix import levels when a reconnect happens without a timeout (1597)
21 - exit early from mds_open if we get a lookup error (1749)
22 - partial page read at EOF wouldn't wait for disk before sending (1642)
23 - avoid NULL deref in obdfilter when reading page past EOF (1592)
25 2003-06-15 Phil Schwan <phil@clusterfs.com>
28 - imports and exports cleanup too early, need refcounts (349, 879, 1045)
29 - per-import/export recovery handling (958, 931, 959)
30 - multiple last-rcvd slots, for serving multiple FSes (949)
31 - connections are again shared between multiple imp/exports (963, 964)
32 - "umount -f" would hang if any requests needed to be sent (393, 978)
33 - avoid pinning large req buffer by copying for queued messages (989)
34 - add "uuid" to "lctl device" command to help upcalls (991)
35 - "open" RPCs with transnos would confuse recovery counters (1037)
36 - do proper endian conversion of all wire messages (288, 340, 891)
37 - remove OST bulk get LBUGs, fix ost_brw_write cleanup (1126)
38 - call waiting locks callback from LDLM recovery thread (1127, 1151)
39 - fix ptlrpc_connection leak in target_handle_connect (1174)
40 - fix import refcounting bug in OST and MDS cleanup (1134)
41 - if an invalid-at-open-time OSC returned before close(), LBUG (1150)
42 - fix very unlikely obd_types race condition (501)
43 - remove osc_open hack for echo_client (1187)
44 - we leaked exports/dlmimps for forcibly disconnected clients (1143)
45 - a failure in read_inode2 leads to deadlock (1139)
46 - cancel ack-locks as soon as transaction is committed (1072)
47 - fix major leaks and crashes in the bulk I/O path (937, 1057)
48 - make sure to commitrw after any preprw to avoid deadlock (1162)
49 - failing to execute a file in a lustre FS would lock inode (1203)
50 - small DEBUG_REQ fix to avoid dereferencing a NULL (1227)
51 - don't ASSERT while cleaning up an incompletely-setup obd (1248)
52 - obd_uuid2tgt would walk off the end of the list (1255)
53 - on IA64 the osc would give portals incorrect bulk size (1258)
54 - fix debug daemon ioctl interface; allows daemon on ia64 (1274)
55 - fix lock inversion caused by new llite matching code (1282)
56 - limit the number of dirty pages on a client to 10MB (1286)
57 - timed out locks were not being corrected cancelled (1289)
58 - fix O_DIRECT above 4GB on IA-32 (1292)
59 * major user-visible changes
60 - fail out/fail over policy now controlled by the upcall (993)
62 - add OBD_PING to check server availability and failure (954)
63 - lustre messages are now sent in sending host order (288, 340, 891)
64 - add eadatalen to MDS getattr reply (340)
65 - OST read replies may contain second buffer, with per-page status (593)
67 2003-03-11 Phil Schwan <phil@clusterfs.com>
70 - LDLM_DEBUG macro fix, for gcc 3.2 (850)
71 - failed open()s could cause deadlock; fixed (867, 869)
72 - stop cancelling OST locks when files are closed (481)
73 - overlapping XID spaces caused network corruption (851, 853)
74 - fix unsafe fsfilt counter arithmetic; change to atomic_t
75 - setattr_raw added, to do single-RPC, server-side setattrs
76 - lmc/lconf syntax change for OST UUIDs
77 - fix crashy race condition between ptlrpc_free_req and osc_close
78 - don't use request in mdc_enqueue if we hit a timeout (889)
79 - don't set the inode i_size for regular files from the MDS (896)
80 - handle out of order completion AST (842)
81 - don't LBUG if a lock request times out after receiving AST (913)
82 - avoid d_rehash race in ll_find_alias by rehashing inside dcache_lock
83 - if a bad lock AST arrives, send an error instead of dropping entirely
84 - return 0 from revalidate2 if ll_intent_lock returns -EINTR (912)
85 - fix leak in bulk IO when only partially completed (899, 900, 926)
86 - fix O_DIRECT for ia64 (55)
87 - (almost) eliminate Lustre-kernel-thread effects on load average (722)
88 - C-z after timeout could hang a process forever; fixed (977)
90 - client-side I/O cache (678, 924, 929, 941, 970)
92 - READPAGE and SETATTRs which don't take server-side locks get
95 2003-02-11 Phil Schwan <phil@clusterfs.com>
98 - Fix ldlm_lock_match on the MDS to avoid matching remote locks (592)
99 - Fix fsfilt_extN_readpage() to read a full page of directory
100 entries, or fake the remainder if PAGE_SIZE != blocksize (500)
101 - Avoid extra mdc_getattr() in ll_intent_lock when possible (534, 604)
102 - Fix imbalanced LOV object allocation and out-of-bound access (469)
103 - Most intent operations were removed, in favour of a new RPC mode
104 that does a single RPC to the server and bypasses most of the VFS
105 - All LDLM resource ID arrays were removed in favour of ldlm_res_id
106 - Aggressively cancel local locks on DLM servers
107 - mds_reint_unlink sends EA to the client if it's the last nlink.
108 client uses that EA to unlink OST objects.
109 - mds_reint_{rename,unlink,link} were rewritten to take ordered locks
110 - recursive symlinks were fixed (439)
111 - fixed NULL deref in DEBUG_REQ
112 - filter_update_lastobjid no longer calls sync, which annoyed extN
113 - fixed multi-client small-writes to a single file problem (445)
114 - fixed mtime updates during file writes (607)
115 - fixed vector writes on obdfilter causing problems when ENOSPC (670)
116 - fixed bug in obd_brw_read/write() (under guise of testing 367)
117 - fixed Linux OST size reporting problem (444, 656)
118 - OST now updates object mtime with writes or setattr (607, 619)
119 - client verifies file size before zeroing page past EOF (445)
120 - OST now writes last allocated objid to disk with allocation (108)
121 - LOV on echo now works (409)
123 - mds_reint_unlink sends a new buffer, with the EA included. this
124 buffer is only valid if body->valid & OBD_MD_FLEASIZE, which is only
125 set if a regular file was being unlinked, and it was the last link
126 - use PtlGet from the target for bulk writes (315)
127 - OST now updates object mtime with writes or setattr (607, 619)
128 - LDLM now has a grant-time callback to revalidate locked items, if
130 - Many MDS operations were reorganized to combat race conditions
132 - Merge b_intel branch (updated lprocfs code) - now at /proc/fs/lustre
133 - configure check to avoid gcc version 2.96 20000731-2.96-98) (606)
135 2003-01-06 Andreas Dilger <adilger@clusterfs.com>
138 - Fully reactivate OST imports after reconnection (512, others)
139 - Make sure client sees our -ENOTCONN from mds_handle (513 - partial)
140 - More graceful error handling for truncating on dead OST (515)
141 - Don't error out unless we're actually accessing dead stripes (474)
142 - Fix garbage sizes when stripes are missing (410)
143 - LRU counters were broken, causing constant lock purge (433, 432)
144 - garbage on read from stripes with failed OSTs (441)
145 - mark OSCs as active before reconnecting during recovery (438)
146 - lov_enqueue and lov_cancel need to handle inactive OSTs (403)
147 - lfind did not preserve OST order in output (443)
148 - symlinks cause hung clients, incorrect data (439)
149 - stop dereferencing request after dropping refcount (457)
150 - don't LASSERT(spin_is_locked) on non-SMP (455)
151 - fixes for many rename() bugs
152 - fstat didn't correctly synchronize attributes (399)
153 - server must handle lock cancellation during blocking AST prep (487)
154 - bulk descriptors were free()d too soon (511)
155 - fix paths in lconf, which would load incorrect modules (451, 507)
156 - fix confusing lconf 'host not found' error message (386)
157 - fix lock order deadlock on OST (O/R i_sem before journal ops, 478)
158 - fix race condition in mdc_blocking_ast() for inode access (526)
159 - fix lov_unpackmd() unpacking wrong number of stripes (537)
160 - fix lov_set_osc_active() marking wrong OSC inactive (440)
161 - fix bad lstripe lov_unpackmd() assertion (fix layering too) (527)
162 - fix multiple writes of stripe MD to MDS (358, maybe 519)
163 - fix lstripe in several ways (kernel side) (527)
164 - fix request leak in ldlm_cli_enqueue (262)
165 - incorrect OSC was marked inactive after OST failure
166 - call mds_fs_cleanup before unmounting filesystem (524)
167 - fix races between taking ns_lock and ldlm_lock_change_resource
168 - fix races updating LOV export open file list
169 - fix lov_enqueue error path, avoid decref-ing bad lock handle
170 - fix recovery NULL deref in ldlm_cli_cancel_unused
171 - fix some DLM races by using new hash table for lock handles (419)
172 - permit the client to specify desired inodes, at replay
173 - duplicate requests when we queue them for replay reintegration
174 - fix last_rcvd offset calculation
175 - sync after each recovered transaction, so we always make progress
176 - never, not always, ERESTART requests without transnos
177 - store the lov_desc in the MDS, so we don't depend on getlovinfo to
179 - skip replay if the MDS says that the client is already connected
180 - don't check for a recovery-enabled export to match lctl's UUID
181 - don't INC_USE_COUNT for phantom exports
182 - don't crash when cleaning up phantom exports (567)
183 - don't double-finish or set replay data for errored mdc_open requests
184 - abort requests when they time out, so we don't get old replies
185 - send/receive replies for AST messages again
186 - if the client says that it doesn't have the lock, cancel it on the
188 - if we timeout during I/O, don't try to cancel an in-use lock; instead
189 mark it as destroyed, it will all work out when decref is called
190 - fix module use counts (22, 581)
192 - ASTs now expect a reply (server cancels lock on error reply)
194 2002-12-02 Andreas Dilger <adilger@clusterfs.com>
197 - fix many simultaneous client startup (392)
198 - fix dentry->d_it clobbering
199 - credentials weren't being shipped for readdir/getattr operations
200 - remove invalid assertions triggered during some concurrent MD
202 - proper Lustre versions added (336, 389)
203 - fix memory leak for create error case (398)
204 - fix LOV locking bug that would get cli/srv out of sync
205 - fix echo client over LOV (409)
206 - fix dbench 2, extN refcount problem (170, 258, 356, 418)
207 - fix double-O_EXCL intent crash (424)
208 - avoid sending multiple lock CANCELs (352)
210 - MDS can do multi-client recovery (modulo bugs in new code)
212 - many updates, edits, cleanups
214 2002-11-18 Phil Schwan <phil@clusterfs.com>
217 - fix null d_it dereference (346)
218 - fix full OST/dbench hang (333)
219 - fix permission problem with file removal (286)
220 - fix removal of OSCs from LOV when they fail
221 - fix NULL deref during bulk timeout (214)
222 - fix problems related to multiple filesystems on one MDS (241)
223 - fixed serious subtle metadata locking bugs
224 - free locks on clients when inodes are removed due to memory
226 - fix inode pointer in lock data (285)
227 - partial support for multiple MDS on a single host (241)
228 - data locks weren't cancelled at clear_inode time (290, 311)
229 - intent locks could lead to unbounded lock growth (205)
230 - added a maximum lock count, an LRU list, and a flusher
231 - fix multiple rename (365)
232 - properly abstracted the echo client
233 - OSC locked 1 byte too many; fixed
234 - rewrote brw callback code:
235 - fixed recovery bugs related to LOVs (306)
236 - fixed too-many-pages-in-one-write crash (191)
237 - fixed (again) crash in sync_io_timeout (214)
238 - probably fixed callback-related race (385)
240 - Add capability to MDS protocol
241 - LDLM cancellations and callbacks on different portals
243 2002-10-28 Andreas Dilger <adilger@clusterfs.com>
246 - limit client IOV size to PTL_MD_MAX_IOV (611336, 191)
247 - defer open object destruction to close time (601981, 138)
248 - open/close OST file handle in obdo (OBD_MD_FLHANDLE) (601981, 138)
249 - move LDLM_ENQUEUE/CONVERT back to MDS portal (625069)
250 - abstract ll_lookup2, fix ll_revalidate2 to use abstraction (256)
251 - don't call obd_setattr in ll_file_release for destroyed objects
252 * protocol change to lustre_msg: move |version| and add |flags|
253 * protocol change to osc_punch: "start" in "o_size", "end" in "o_blocks"
254 * lock replay: for LDLM_FL_REPLAY trust client to do right thing
255 * added replay of create, unlink, link and rename operations during
256 MDS failover; recovery should be much more robust now
257 * remove failed OSCs from LOVs (only lov_create uses this so far)
258 * the lustre-HOWTO was brought (more) up to date (582544)
260 2002-10-23 Phil Schwan <phil@clusterfs.com>
263 - in-use dentries weren't being reused properly (617851)
264 - prevent multiple LDLM setup (599178)
265 - fix LOV size calculations for truncate (617853)
266 - fix client handling of MDS intent errors (POSIX)
267 - fix permission bug in lovstripe.c test (624321)
268 - fix MDS thread deadlock - move LDLM handler to DLM portal (625069)
269 - truncate past end of file could corrupt data
270 - proper cleanup after timeouts, crashes, etc (592524, 550815)
271 - a race in recovery could return ETIMEDOUT to apps (623947)
272 - building outside the source directory was fixed
273 * the lustre-HOWTO was brought (more) up to date (582544)
274 * major progress was made on recovery functionality
276 2002-10-10 Phil Schwan <phil@clusterfs.com>
279 - recovery deadlock fix
280 - rm -rf causes LBUG fix (617817)
281 - file open by multiple tasks fix (618962)
282 - directory permissions bugs (602707 and 620007)
283 - journal_stop fixed with locking (611313)
284 - O_APPEND failures resolved (618273, perhaps 614459)
285 - lconf PATH fix (619770)
286 - IA64 build fix (621450)
287 - RPC buffer sizes scale with amount of memory
289 2002-10-01 Phil Schwan <phil@clusterfs.com>
292 - locks would be cancelled without throwing away data pages,
293 resulting in inconsistent data (605627)
294 - inode attributes were not always being refreshed (605627, 612449)
295 - lconf now continues to cleanup after lctl reports an error
296 - MDS now enforces user permissions (602707)
297 - lprocfs cleanup fixed, but not yet enabled (614157)
298 - fixed infinite server hang, should a client not respond to an AST
299 - avoid going into recovery if user calls readlink() with a buffer
300 that's too small (613941)
301 - AST RPCs no longer require replies (614867) -- this may be changed
302 - don't crash server if client sends an IOV that's too big (611336)
303 - fixed lock conversion deadlock (611892)
304 - fixed the following of symlinks (614622)
305 * recovery: the server can remove locks from a client that dies, other
306 clients can make progress
307 * more extN patch fixes
308 * compile-time configurable ptlrpc buffer allocations
310 - collaborative read cache document
311 - Lustre Lite Performance CDR document-in-progress
313 2002-09-20 Andreas Dilger <adilger@clusterfs.com>
316 - fix typo in patch-2.4.18
318 2002-09-20 Andreas Dilger <adilger@clusterfs.com>
321 - clear ptlrpc request each time in handle_incoming_request()
322 - unlink of files now destroys the object on the OST
324 2002-09-19 Peter Braam <braam@clusterfs.com>
326 * add hard link support
327 * change obdfile creation method
328 * kernel patch changed
330 2002-09-19 Peter Braam <braam@clusterfs.com>
333 - stack overflow bug in extN fixed
335 2002-09-18 Andreas Dilger <adilger@clusterfs.com>
337 * documentation updates
338 - add man pages for config tools
339 - update tests/README to describe testing with new config tools
340 - finish metadata API descriptions
341 * bug fixes and cleanups
342 - statfs workaround for 16TB limit
343 - LOV stripe allocation improved, can stripe on subset of OSTs
344 - LOV file size/IO offset was wrong for files > 4GB in size
345 - object EA data was being dropped, caused files to be unreadable
346 - memory overflow with non-LOV OST caused memory corruption
347 - fixed regression tests to work with new config tools, obdfilter
348 - fixed bug when directory size became larger than 1 block
349 - fixed bug (for single client case) when PWD was deleted
350 - invalidate local directory pages when doing intent-based ops
351 - avoid LDLM oops when lock callback contained bad data
353 2002-09-09 Andreas Dilger <adilger@clusterfs.com>
355 * documentation updates
356 * bug fixes and cleanups
357 - configuration tools
360 - 64-bit compile warnings
361 - 64-bit internal statfs data
363 * test_brw on persistent OST devices
367 2002-09-04 Andreas Dilger <adilger@clusterfs.com>
369 * documentation updates
370 * bug fixes and cleanups
371 * configuration tools
373 2002-08-30 Peter J. Braam <braam@clusterfs.com>
376 * many small fixes to 0_5_4
377 * io/network handling
378 * thinkos in MDS operations
380 2002-08-24 Peter J. Braam <braam@clusterfs.com>
383 * crucial basic fixes to 0.5.3
384 * IOR, Iozone work over Elan
387 2002-08-07 Phil Schwan <phil@clusterfs.com>
388 * version 0_5_3, our first alpha
389 * we use the new Portals iovs
390 * documentation updates
391 * bug fixes and cleanups
392 * small changes in the DLM wire protocol
394 2002-07-25 Peter J. Braam <braam@clusterfs.com>
395 * version 0_5_1 with some initial stability,
396 * locking on MD and file I/O.
397 * documentation updates
398 * several bug fixes since 0.5.0
399 * small changes in wire protocol
401 2002-07-18 Phil Schwan <phil@clusterfs.com>
403 * delivered as Lustre Light Alpha
404 * fixed a crash after handling invalid MDS requests
405 * fixed directory pages for architectures with non-4k pages sizes
407 2002-07-11 Andreas Dilger <adilger@clusterfs.com>
408 * release version v0_4_4
409 * Moves TCP acceptor to be on port 2432 (unused Coda port) instead
411 * Fixes a number of interruption problems with OST operations.
412 * Update documentation for portals header changes
413 * Move all wire protocol structs/defines to lustre_idl.h
414 * Fixes symlink length bug.
415 * Add tcpdump to repository.
417 2002-07-05 Andreas Dilger <adilger@clusterfs.com>
418 * release version v0_4_3
419 * Fixes statfs for inodes on extN.
420 * Fixes bug in runtests which would delete /etc/hosts.
421 * Use 64-bit object IDs wherever possible (not into VFS though)
422 Remove ost_get_info, which is unused by lustre, and out of date.
424 2002-07-03 Peter Braam <braam@clusterfs.com>
425 * release version v0_4_2 Fixes a lookup error (type not passed)
426 * move forward to head of Portals
427 * move forward to latest Lustre kernel
429 2002-06-25 Peter Braam <braam@clusterfs.com>
430 * release version v0_4_1. Hopefully stable on single node use.