2)add clientfsoption in lmc and lconf
3)some fix in cobd for cache miss handler

1) add IOC_OBD_SNAP_ADD
3) mirror s_flags in sb for P_DIROPS

1)some fix for snap
2)add snap_add command

2) remove and modify some test scripts according to the new lconf and lmc

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

Fixed:
* failure path in lmv_connect().
* added checks if late connect is success.
* added accounting of active mds.

Mostly fixes related to using failover MDSs along lmv. This is also related to active_ref handling, etc.

Also fixed the following:
* name of lproc entry where lustre upcall can be seen in error message if upcall is failed.
* removed --master option which was supposed to work along with lmv and now it is obsoleted.
* clanups and fixes both in lconf and lmc

KERNEL, or LUSTRE WILL NOT BUILD.

- full GNS kernel updates added to vanilla-2.4.24 series
- Oleg patched the API updates into the other kernel series, but none
  of the GNS functionality is present.  I don't know how well those
  other series have been tested.
- I tested normal functionality, but have not tested GNS yet.

- b1_4 is basically the parent of HEAD, because that's the direction
  that changes flow, as strange as that sounds.  so there's a
  HEAD_BASE tag which sits on b1_4

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

  we need this becase client's timeout should be longer then inter-mds recovery may take
- few ugly hacks that allow client to reconnect with old (before failure took place) UUID
- mds_preprw() and mds_preprw() should use l_dput() instead of f_dput()
- SOCKNAL_IO_TIMEOUT has been set to 20 seconds to make discovery of
  stale connection faster
- lconf generates persisten UUIDs for LMV clients
  it each new LMV uses fresh UUID, then each recovered MDS looks like
  new client (target MDS doesn't recognize it's old because of new UUID).
  if target MDS gets restarted, then it'll find more clients in LAST_RCVD
  then it actually had

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=2094, b=3138, b=3335, b=3274, b=3293, b=2862, b=3147, b=2350, b=3313
b=3265, b=3315, b=3301, b=3325, b=3329, b=3125, b=3098

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

b=2912/2922, b=3145 too

b=3116, b=3064, b=3107, b=3122, b=1519, 2.6 kernel fixes, group lock fixes

b=3057, 2947, 2925, 3050, 3041, 2849, 1662

re-add things CVS mistakenly removed.

Do not cvs add/rm on one branch, then cvs up -r to another branch, and
expect CVS to cope.

b=3058

Clean up the autoconf and automake bits:

 * now liblustre and kernel modules can be built in the same tree
	use --disable-modules, --disable-liblustre to disable those
	bits
 * 2.6 modules are now built as .ko, and lconf can deal with them
 * fixes for builddir != srcdir

do not support http urls until python2, as that is the first occurance of
    urllib2, where the error handling for http is finally sane

r=adilger

Tweak lfs a little so that lfs find can use open(O_DIRECTORY) to detect
directories when libc doesn't implement readdir64() in a way that
returns d_type.  This lets sanity hobble along on some x86-64
installations.

- Remove unused variable from b_1414

r=shaver

allow lconf to get xml configs via http

lustre_assert_wire_constants(), without which it is impossible to run a test.

Likely needs to be merged back to b_cray_* from whence it came.

liblustre fixes and group lock support

r=phil

land b_cray_portals_merge on HEAD.  This consists of four families of changes:

1) Eric's work to change some APIs in Lustre's portals to come into line with
   Cray's portals and the spec.

2) add --with-cray-portals= to the build and use it to cut up the build
   when we're building lustre against external includes for Cray's portals.

3) Move some facilities from portals.o into libcfs.o so that Lustre can
   consume them when it is running against Cray's portals.o.

4) Fix up the liblustre build.  These changes have also made it to
   b_cray_delivery recently.

r=shaver
let lustre could be mounted with the same name for node and mds