Andreas's patch to fix MDS lock inversions in getattr/reint paths.
I'm giving it one more day to bake on ALC before I commit to the 1.0.x
branch.

* bug fixes
 - Fix ldlm_lock_match on the MDS to avoid matching remote locks (592)
 - Fix fsfilt_extN_readpage() to read a full page of directory
   entries, or fake the remainder if PAGE_SIZE != blocksize (500)
 - Avoid extra mdc_getattr() in ll_intent_lock when possible (534, 604)
 - Fix imbalanced LOV object allocation and out-of-bound access (469)
 - Most intent operations were removed, in favour of a new RPC mode
   that does a single RPC to the server and bypasses most of the VFS
 - All LDLM resource ID arrays were removed in favour of ldlm_res_id
 - Aggressively cancel local locks on DLM servers
 - mds_reint_unlink sends EA to the client if it's the last nlink.
   client uses that EA to unlink OST objects.
 - mds_reint_{rename,unlink,link} were rewritten to take ordered locks
 - recursive symlinks were fixed (440)
 - fixed NULL deref in DEBUG_REQ
 - filter_update_lastobjid no longer calls sync, which annoyed extN
 - fixed multi-client small-writes to a single file problem (445)
 - fixed mtime updates during file writes (607)
 - fixed vector writes on obdfilter causing problems when ENOSPC (670)
 - fixed bug in obd_brw_read/write() (under guise of testing 367)
 - fixed Linux OST size reporting problem (444, 656)
 - OST now updates object mtime with writes or setattr (607, 619)
 - client verifies file size before zeroing page past EOF (445)
 - OST now writes last allocated objid to disk with allocation (108)
 - LOV on echo now works (409)
 * protocol changes
 - mds_reint_unlink sends a new buffer, with the EA included.  this
   buffer is only valid if body->valid & OBD_MD_FLEASIZE, which is only
   set if a regular file was being unlinked, and it was the last link
 - use PtlGet from the target for bulk writes (315)
 - OST now updates object mtime with writes or setattr (607, 619)
 - LDLM now has a grant-time callback to revalidate locked items, if
   necessary (604)
 - Many MDS operations were reorganized to combat race conditions
* other changes
 - Merge b_intel branch (updated lprocfs code) - now at /proc/fs/lustre
 - configure check to avoid gcc version 2.96 20000731-2.96-98 (606)

Fixes a _huge_ number of bugs:
  - Fully reactivate OST imports after reconnection (512, others)
  - Make sure client sees our -ENOTCONN from mds_handle (513 - partial)
  - More graceful error handling for truncating on dead OST (515)
  - Don't error out unless we're actually accessing dead stripes (474)
  - Fix garbage sizes when stripes are missing (410)
  - LRU counters were broken, causing constant lock purge (433, 432)
  - garbage on read from stripes with failed OSTs (441)
  - mark OSCs as active before reconnecting during recovery (438)
  - lov_enqueue and lov_cancel need to handle inactive OSTs (403)
  - lfind did not preserve OST order in output (443)
  - symlinks cause hung clients, incorrect data (439)
  - stop dereferencing request after dropping refcount (457)
  - don't LASSERT(spin_is_locked) on non-SMP (455)
  - fixes for many rename() bugs
  - fstat didn't correctly synchronize attributes (399)
  - server must handle lock cancellation during blocking AST prep (487)
  - bulk descriptors were free()d too soon (511)
  - fix paths in lconf, which would load incorrect modules (451, 507)
  - fix confusing lconf 'host not found' error message (386)
  - fix lock order deadlock on OST (O/R i_sem before journal ops, 478)
  - fix race condition in mdc_blocking_ast() for inode access (526)
  - fix lov_unpackmd() unpacking wrong number of stripes (537)
  - fix lov_set_osc_active() marking wrong OSC inactive (440)
  - fix bad lstripe lov_unpackmd() assertion (fix layering too) (527)
  - fix multiple writes of stripe MD to MDS (358, maybe 519)
  - fix lstripe in several ways (kernel side) (527)
  - fix request leak in ldlm_cli_enqueue (262)
  - incorrect OSC was marked inactive after OST failure
  - call mds_fs_cleanup before unmounting filesystem (524)
  - fix races between taking ns_lock and ldlm_lock_change_resource
  - fix races updating LOV export open file list
  - fix lov_enqueue error path, avoid decref-ing bad lock handle
  - fix recovery NULL deref in ldlm_cli_cancel_unused
  - fix some DLM races by using new hash table for lock handles (419)
  - permit the client to specify desired inodes, at replay
  - duplicate requests when we queue them for replay reintegration
  - fix last_rcvd offset calculation
  - sync after each recovered transaction, so we always make progress
  - never, not always, ERESTART requests without transnos
  - store the lov_desc in the MDS, so we don't depend on getlovinfo to set it
  - skip replay if the MDS says that the client is already connected
  - don't check for a recovery-enabled export to match lctl's UUID
  - don't INC_USE_COUNT for phantom exports
  - don't crash when cleaning up phantom exports (567)
  - don't double-finish or set replay data for errored mdc_open requests
  - abort requests when they time out, so we don't get old replies
  - send/receive replies for AST messages again
  - if the client says that it doesn't have the lock, cancel it on the server
  - if we timeout during I/O, don't try to cancel an in-use lock; instead
    mark it as destroyed, it will all work out when decref is called
  - fix module use counts (22, 581)
 * protocol changes
  - ASTs now expect a reply (server cancels lock on error reply)

- LL_SAVE_INTENT fixes