r=nathan,adilger,shadow,green

- separates client and server namespaces. Each "side" has own list and own lock;
- separate pool shrinker to client and server shrinkers which work each with own list. This is needed to avoid mixing up server and client pool cached resources which are too different. Client's locks may be canceled in sync manner and we can return to VM number of still cached resources. And server resources (locks) are not removed in sync way,  we just change SLV and expect that client will cancel something. To VM we return 0 as number of canceled locks;

- in ldlm_pools_shrink() use down_trylock() to avoid locking ns sem when it is already locked. This fixes hang up in test 116 if memory pressure comes. This issue is due to deadlock bewteen shrinker and pool thread if client and server run on same host;

- move lru add stuff into separate func;
- change l_last_used and move lock to tail of lru for case of FL_TEST_LOCK to make sure that it will still hang for some time in lru afer that. So that, if we looked for look even with FL_TEST_LOCK this means that we may need its resourse yet some time and better to stay lock in cache.

- grant_speed, grant_rate, garnt_plan, cancel_rate have own procfs functions which take into account possible schedule lag for pools thread.

b=13304
i=johann
i=green

b=2369
i=johann, deen

replace inode->i_size access with i_size_read/write

i=green
changes from eeb's inspection

Bugzilla   : 13532
Description: rewrite ext2-derived code in llite/dir.c and obdclass/uuid.c
Details    : rewrite inherited code (uuid parsing code from ext2 utils and
             readdir code from ext3) from scratch preserving functionality.
b=13532
i=adilger
i=alex
i=green

r=adilger,vitaly,nikita
- landed lru resize.

b=12418
i=green
i=adilger

when mds and osts use different quota unit(32bit and 64bit), quota will be released
repeatly. This patch voids sending multiple quota reqs to mds, which will keep the
status between the reqs.
b=12588
i=johann
i=wangdi

b=11401
i=adilger
i=tappro
i=green

client-side metadata stat-ahead during readdir (directory readahead)

i=adilger
i=eeb (pending)
adaptive timeouts

i=adilger
i=nikita

file contention detection and lockless i/o implementation
for contended files.

Whitespace cleanup.

fix the bug of "mds_obd_create error creating tmp object"
b=12223
i=green
i=wangdi

b=12211
i=green, johann

suppress every allocation attempt message noise, and shut off a compile
warning on x86_64 in obd_alloc_fail(), due to size_t being unsigned long
there.

b=12192
i=adilger, green

add llapi_file_open()

b=12932
i=green, shadow

set obd_health_check_timeout as 1.5x of obd_timeout

Revert bug 11401 due to build breakage and test badness.

r=alex,vitaly

Change the ldlm_lock's bitlock to a real spinlock to avoid it to be overwritten when operating on l_flags.

Revert part 2 of bug 11710 due to regressions.

client-side metadata stat-ahead during readdir (directory readahead)
b=11401
i=Adilger
i=tappro

b=9977
i=green
i=wangdi

i=tappro
i=fanyong
block reactivating mgc import until all deactivates complete
Only an issue when failing back MDT/MGS to itself (testing)

oops, forget a file in last commit
b=10800
i=shadow
i=green

change improper debug_level for null ctxt msg.
b=10800
i=green
i=adilger

r=adilger

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

b=11802
i=green
i=scjody

attachment 11752 / rely on AUTOCONF_INCLUDED instead of HAVE_KERNEL_CONFIG_H

b=12606
i=shadow, nikita

Description: don't use GFP_* in generic Lustre code.
Details    : Use cfs_alloc_* functions and CFS_* flags for code portability.

b=12211
i=adilger
i=green

Description: randomly memory allocation failure util
Details    : Make lustre randomly failed allocating memory for testing purpose.

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

Description: Async OSC create to avoid the blocking unnecessarily.
Details    : If a OST has no remain object, system will block on the creating
            when need to create a new object on this OST. Now, ways use
            pre-created objects when available, instead of blocking on an
            empty osc while others are not empty.  If we must block, we block
            for the shortest possible period of time.

Patch by shadow.

b=4900
i=wangdi
i=nathan

b=12411
i=adilger
i=scjody

* Add new configure checks to allow to run a patchless client on a patched kernel
* Remove the vfs intent patches from the 2.6.18 patch series

i=adilger
i=green
block client->MDT connection until first MDT->OST connection

reserve some connect flags

r=adilger, nathan

Hash tables for uuids, nids and connections.

b=12848
i=adilger
i=green

Description: sanity.sh fail: test_52b
Details    : The ll_inode_to_ext_flags() has a glitch which makes MDS return
             incorrect inode's flags to client.

i=nathan
i=scjody
b=13063
Description: lfsck built against 1.4.x cannot run against 1.6.0 lustre
Details    : the definition for OBD_IOC_GETNAME changed in 1.6.0.  One of the
	     few external users of this ioctl number is lfsck's call to
	     llapi_lov_get_uuids() and this caused lfsck to fail at startup.
	     Add the old ioctl number to the handler so both old and new
	     lfsck can work.

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

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

b=11544
i=green
i=eeb