i=walter

Land Andreas' original fix for catamount build errors

r=Nathan Rutman, Alexey Lyashkov

Ported the patch 'to organize the stats on per-nid basis instead of the existing per-export basis' to HEAD.
This patch also includes all its related bug fixes(bug 14016, bug 14370, bug 14873).

b=13821
i=wangdi
i=umka

- redesigned remote acl support, by FanYong
  b=11842
  r=pravin.shelar, eric.mei
- new sptlrpc configure interface
  b=13642
  r=yong.fan, rahul.deshmukh
- split kerberos keytab for lustre_root
  b=13873
  r=yong.fan, h.huang
- fix setuid for gss with linux keyring
  b=13899
  r=yong.fan, h.huang

b=14418
i=green
i=johann

  b:13815
  i:green, shadow

b=12418
i=green
i=adilger

b=12932
i=green, shadow

set obd_health_check_timeout as 1.5x of obd_timeout

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

b=11315
i=adilger
i=alex

Type-check arguments against format string in CDEBUG/CERROR, fix warnings
introduced.

Original patch by adilger.

b=12327
i=green
i=isaac

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

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

play nicer with parameters on logs upgraded from 1.4.x
- allows updates for old logs whenever we can (i.e. ok for mdc, not for osc)
- allows updates for everyone if --writeconf is specified at tunefs upgrade
time (requires entire fs to be stopped though)
- allows updates of failover partners if --writeconf is specified
- fixes various other little bugs and error messages
- adds a couple of regression tests for upgrading from 1.4.6

remove debug patch for test41

try tmp patch for failed test41

tmp fix about ost add/del, reset osc uuid in mds, but not reset mdc uuid in mds

merge HP fixes about ost add/del

- removed wrong stuff in class_add_conn(). Apparently it is result of wrong merge when newcfg stuff was landed. Issues related to it were observed in #48.

forget lprof->lp_gkc in profile delete

land add mds code to HEAD

land crypto api

add cfg_instance string in setup lcfg for WB zconf.

1.port new lustre_lcfg structure from b1_4 to HEAD
2.some fix on test scripts for WB cache

 - to avoid possible lock collision during replay, we should replay all
   request before any locks

- changed mds_alloc_inode_sid() to allocate lustre_id in memory if there is
no passed one. This makes mds stuff do not use lustre_id allocated on stack
if there is only need to allocate inode sid without using it later. This
makes stack consumption smaller by 40 bytes in each such a case.

- in mds_setup() whrn comparing strings passed from userspace use strncmp()
- root lustre_id should be set up also in cases when there is no profile.
- making do not use lustre_id allocated on stack in places where it is possible.

- moving mds_finish_transno() calling to place where dput() for dchild is
already called to make sure, that unlink op got to current transaction.

- lots of changes in lconf. MDSDEV stuff is changed substantionaly. Removing
bugs prone code, replacing it by new one about setting up MDS, LMV, etc.
Added more verbose messages about MDS, LMV configuration. Removed redundant
stuff about forming mount options. It now is moved to function and be used from
few places.

- fixes in CMOBD and COBD objects about using LMV.

- fixed double client_ref adding to LMV, what led to double client config
writing on MDS setup.

I haven't re-tested the AMD functionality since landing, but I did
test iozone and dbench to ensure sanity.

b_cmobd_merge should not be used for any further development or testing!

cMD_PRE_CMD_SMASH are the relevant tags.

The pre-smashing contents of HEAD will be committed by yury into b_cmd as a
merge of the two branches.  These will be stabilized on b_cmd and eventually
landed onto HEAD.

b=3043, b=3258, b=3219, b=2410

    Superbug 2871:
    Sub-bugs fixed 2869 2870 3034 3036 3037 3035 3038 3135