i=Adilger
test_21c fix: restore config

Branch b1_6
b=16492
i=umka
i=tappro

i=Adilger
conf-sanity test_32* fix to not be skipped for remote setup

r=johann,shadow

- fixes ptlrpcd blocking on very long reply unlink waiting. To do so new rpc phase introduced
RQ_PHASE_UNREGISTERING in which request stay until we have reply_in_callback() called by lnet
signaling that reply is unlinked. All requests in this state are skipped in processing by prlrcd
instead of waiting n * 300s on each of them. This allows ptlrpcd to process other rpcs in the set;

- make sure that inflight count is coherent with being present on sending or delay list. That is,
if we see inflight != 0, rpc must be on one of these lists. This is very helpful in
ptlrpc_invalidate_import() to show all rpcs still waiting after invalidating import;

- in ptlrpc_invalidate_import() wait maximal rq_deadline - now from all inflight rpcs instead of
obd_timeout which may be much longer. If calculated timeout is 0, obd_timeout is used. This fixes
the issue that rq_deadline - now > obd_timeout (very easy to see in logs) which led to inflight !=
0 assert because inflight rpcs timed out later than our wait period is finished;

- in ptlrpc_invalidate_import() wait forever for rpcs in UNREGISTERING phase. Check in assert for
inflight == 0 for wait timed out case if no rpcs in UNREGISTERING phase. Only those in
UNREGISTERING phase are allowed to stay longer than obd_timeout;

- added ptlrpc_move_rqphase() function. All phase changes go through it. Add debug_req() there to
track down all phase changes;

- conf_sanity.sh test_45 added to emulate very long reply unlink and also situation when
rq_deadline - now > obd_timeout;

- do not wait forever in ptlrpc_unregister_reply() for async case (using it from sets). sync case
left unchanged;

- make sure that ptlrpc_set_next_timeout() yields 1s timeout (instead of 0s) for the set with rpcs
in "unregistering" stage to prevent ptlrpcd from sleeping forever and hanging in test_45;

- in ptlrpcd() make sure that we do not sleep on 0 timeout.

o=Adilger
i=grev
skip replay/recovery tests if remote MDS/OSS with nodsh

b=16551 (att 19835)
i=Nathan
do skip_rem[mds|ost] check only if test suit is run; fail acc-sm if
tests suits were skipped due to nodsh

b=17326
i=Alexey.Lyashkov
remove now-useless remount/reconfig for liblustre;
always add accept=all fo lnet module

i=Adilger
MOUNTCONF cleanup

i=Yury.Umanets
start_mds CMD fix

parallel llog init
Branch HEAD
b=16679
i=umka

r=adilger,shadow

- various CMD related fixes.

i=rread
fix tests for low memory

i=rread
fix tests for low memory

make llog more smp safe.
don't write big array into journal.
fix return codes in llog_put_cat_list/llog_get_cat_list.

Branch b1_6
b=16679
i=umka
i=adilger

b=16678
i=nathan

i=Robert.Read
o=Brian.Behlendorf
test_27b fix: check mount

i=Robert.Read
o=Brian.Behlendorf
test_27b fix: check mount

i=Adilger
fix test_18 to check the available space

i=Adilger
fix test_18 to check the available space

b=16317
i=adilger

conf-sanity test case for verifying that the mounted client data is present.

if client connected until mds will be know about real ost count
get LOV EA can be fail because mds not allocate enougth buffer
for LOV EA.
Branch b1_6
b=16080
i=tappro
i=johann

i=Adilger
i=Zhenyu.Xu
conf-sanity test_41 fix for ostcount -ne 1

i=Adilger
i=Zhenyu.Xu
conf-sanity test_41 fix for ostcount -ne 1

i=Adilger
avoid rm -fr failure caused by nfs slowness

i=Adilger
avoid rm -fr failure caused by nfs slowness

b=14693
o=bowen.zhou
i=johann, bobijam

test case for "'lctl conf_param' stores invalid parameter, future mounts fail"

b=14693
o=bowen.zhou
i=johann, bobijam

test case for "'lctl conf_param' stores invalid parameter, future mounts fail"

i=Adilger
remove tdir creation from run_one: the test has to create tdir by
itself if it needs this dir

i=Adilger
remove tdir creation from run_one: the test has to create tdir by
itself if it needs this dir

b=14134
i=johann

minor fix handling '/etc/mtab' issue.

b=14134
i=johann

minor fix handling '/etc/mtab' issue.

b=15716
i=rread
i=johann

b=15759
r=rread, green

Description: MDS or OSS service threads fail startup with -24 (-EMFILE)
Details    : During startup under recovery, it is possible for service
             thread startup to fail in ptlrpc_start_threads() if one
             of the threads begins processing a request and then starts
             an additional thread.  This causes ptlrpc_start_threads()
             to try and start 1 too many threads and get an error.

b=14134
i=nathan, johann

Description: enable MGS and MDT services start separately
Details    : add a 'nomgs' option in mount.lustre to enable start a MDT with
             a co-located MGS without starting the MGS, which is a complement
             to 'nosvc' mount option.

b=14134
i=nathan, johann

Description: enable MGS and MDT services start separately
Details    : add a 'nomgs' option in mount.lustre to enable start a MDT with
             a co-located MGS without starting the MGS, which is a complement
             to 'nosvc' mount option.

i=Adilger

rename subtests to skipping mechanism works properly

i=Adilger

rename subtests to skipping mechanism works properly

r=adilger

to replace the sysctl lustre.* and lnet.* instances with lctl {get,set}_param

r=Andreas
 to replace the sysctl lustre.* and lnet.* instances with lctl {get,set}_param

i=Adilger

skip test_32a, test_32b for NETTYPE != tcp

i=Adilger

skip test_32a, test_32b for NETTYPE != tcp

b=15759
r=rread, green

Don't consider -EMFILE (too many threads) a fatal startup error