Sync log_commit_thread count between llog_commit_thread_start and
llog_commit_thread_cleanup.
b=10800
i=shadow
i=green

b=11756
i=nathan
i=green

r=adilger

Obtain necessary amount of peer credits for exery export per oss and for
every possible AST per MDS.

land 10800(adding llog ctxt refcount) to b1_6.
b=10800
i=green
i=shadow

r=adilger, nathan

Hash tables for uuids, nids and connections.

To improve performance, disable most logging (for debug purposes)
by default.  VFSTRACE, RPCTRACE, and DLMTRACE are now off by
default, and HA includes contains fewer messages.

Original patch by adilger.

b=12417
i=scjody
i=green

i=adilger
i=green
fix mds_lov_synchronize race

Fix ll_opcode2str() and opcode_offset() to handle LLOG request types.
Fix ChangeLog to put changes at the end of the 1.6.1 section.
b=12731
i=nathan
i=scjody

b=12696
i=johann
i=adilger

Severity   : normal
Frequency  : rare
Bugzilla   : 12696
Description: ASSERTION(imp->imp_conn_current) failed
Details    : an assertion failure is hit if a client node boots and attempts to
            mount a lustre filesystem faster than RECONNECT_INTERVAL seconds.

callback after bulk transfer shouldn't LBUG, but process this
request as erroneous.

b=11544
i=green
i=eeb

r=eeb,adilger
do not panic if pinger set changed reply status. The only valid action
is to check if reply was actually processed.

b=11710
i=green
i=wangdi

b=12747
i=wangdi
i=scjody

i=green, adilger

improve some error messages.

land Early Lock Cancel code

b=12731
i=adilger
i=green

ASSERTION(offset < LUSTRE_MAX_OPCODES) fix

prevent destroy request after get timeout in ptlrpc_queue_wait.

b=11674
i=green
i=wangdi

b=12731
i=vitaly (original author)
i=adilger

LCONSOLE_ERROR(fmt, arg) to LCONSOLE_ERROR_MSG(0x000, fmt, ## arg).

b=10595
i=adilger

the build is broken with last commits. fixing

It also includes code fixes for first five improved error messages.

b=10595
i=adilger
i=braam

r=eeb,adilger,nic(original author)

Insert cond_resched in ptlrpc_main to give other threads a chance to use some cp
u.

Accept the old ost_num_threads parameter but warn that it
is deprecated, and fix an off-by-one error that caused an LBUG.

Original patch by adilger.

b=12470
i=nathan
i=scjody

i=nathan
i=adilger
don't unlock twice.  patch by wangdi

imp_delayed_list, in this place should be used imp_lock.
b=12477
i=alex
i=eeb

r=wangdi,adigler

Take import reference before releasing llog record semaphore

r=adilger,shadow

Check that request is still eligible for replay in mdc_set_replay_data()
before doing anything.

Add LNET router traceability for debug purposes

If a checksum failure occurs with a router as part of the IO path, the NID of
the last router that forwarded the bulk data is printed so it can be
identified.

Original patch by eeb.

b=11548
i=eeb
i=adilger

i=adilger

unmatched spin_lock/unlock of imp_lock might cause deadlock.

Patch from nic@cray.com: add spin locks around import/export bit flag changes.

b=11315
i=adilger
i=alex

b=11013
Back out bz 11013 due to chronic test failures

timeout.

b=11203
i=green
i=adilger

b=11090
Description: Be more lenient with linux clients before warning (by Andreas)
Details: This fixes Linux clients so they allow one major Lustre release update
         before they warn.  It also makes the setting of the version a lot
         easier by using OBD_OCD_VERSION(0,0,1,32) instead of having to calculate
         it directly.

Change timeouts on Cray XT3.

b=10803
r=adilger
r=scjody

Original author: Nic from Cray

This is a potential null pointer dereference.
Caught by HEAD's conf_sanity test 29

b=11013
r=adilger

implement a common hash table, so it will be used as a hash class.
in this patch, finished :
1. " UUID <--> export " hash
2. " NID  <--> export " hash
3. "NetPeer <--> connect" hash

b=11090
r=green

Description: Checking the version difference of client vs. server, report error if the gap is too big.

of uninitialized pointer.

r=rmg@ (nathan)

Don't try to report stats on an incoming request we can't decode
(trips LASSERT in since RPCv2 support was added).