r=adilger

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

- Add some progress indication.
- Fix "cycles" (rm -f erases test dir, so must recreate)

Description: large O_DIRECT requests fail under memory pressure/fragmentation
Details    : Large single O_DIRECT read and write calls can fail to allocate
	     a sufficiently large buffer to process the request.  In case of
	     allocation failure the allocation is retried with a smaller
	     buffer and broken into smaller requests.
b=10901
r=vitaly r=green

bad null-termination of 8-char filesystem names

- regression test for the case

thanks tappro.

remove obsolete lgs.sh

add ost add/del test script

some updates in sanity-crypto.sh

shouldn't touch this.

fixes:
* previous implementation doesn't support multi-open/truncate by different
  users on the same inode.
* update DLD.
* cleanup.

fix bug 7348, when chmod, should recompute mac

revert back ptldebug after merge.

land ost add/del to HEAD

1) add mks type in sanity-crypto.sh
2) fix decrypt problem in mks type

 - open file by fid in REPLAY|RESENT case because parent can disapper by
   that time

- changes in test45.sh

- fixes for making liblustre at least buildable (including fixes to compilation bug found by Brian recently)

some fixes about crypto api
1)some fixes about init inode key
2)some fixes about compute new mac

  ../../lustre/include/linux/lustre_sec.h:541: error: field `c_hash' has incomplete type

some fixes about crypto api
1)some debug info fix
2)reorganize the code for mds_set_gskey

some minor fixes about sanity-crypto test scripts

- remove unneeded debug