b=2464

Land initial b_bgl fixes.  Includes compile and a couple of swabbing
fixes.

b=2818

b=2733, b=2773, b=2529, b=2730, b=2819, b=2814, b=2822, b=1450, b=2676, b=2681
b=2817, b=2706, b=2816, b=1987, b=2884, b=1191, b=2809, b=2765, b=2805, b=1972

if mount.lustre is not installed, don't oops but print a message
suggesting it be checked.

land b_size on HEAD for 1.2

writepage.
patch=zab

Adds support for client-side write cache accounting via OST write credits
(grants).  There is not yet a "correction" algorithm for grants if they
get out of sync between the client and OST (OST can handle clients who think
they have grant but do not).  Peter had previously suggested that grants
should decay over time (faster on the clients than on the OSTs) so idle
nodes do not consume space they aren't using.

Use /proc/fs/lustre/osc/OSC*/cur_grant_bytes (and existing cur_dirty_bytes)
to check client-side cache values.

Includes lustre-side changes for lfsck support (create files with
specific objids, create specific objids on OSTs).

Also includes some changes to the testing scripts (local.sh, lov.sh, acc-sm)
so that they include a "client nid '*'" client and can be used for sanityN.sh
testing.  This has been put into the main acceptance-small.sh loop so that
sanityN.sh will be run on both single and multi-OST setups.

b=974 b=2349
r=shaver

passing "> /dev/null" as an extra argument to the functions, and this
is not really what we want.  Since I don't think it's all that bad to
see the output of lconf, anyway, I just deleted the >/dev/null
entirely.

While looking into this, I also noticed that mount -f was still
attempting to fetch the log from the MDS. That is fixed, too.

b=2428

The principal change here is ptlrpc_connect_import and recovery are
merged and are now asynchronous and are run on ptlrpcd.

This branch also includes fixes for

  2477 (this was the initial bug)

  2355 recover for initial connections

  1934 (b_1934 was merged directly to b_recovery)

  1901 block all file creations until orphan recovery completes

  2423 client remove rq_connection from request struct

  2640 conf-sanity test_5, and proper cleanup in umount when
       cleanup log is not availale.

  2670 recovery timer race

  2532 mdc_close recovey bug

And few others that werent' filed.

- they back-ported PDE from 2.6, which broke our compat macro
- they changed direct_IO method to pass struct file instead of struct inode

Both are now checked in portals/archdep.m4 directly instead of as a version
number check so we don't need to worry about other releases doing the same.

b=2578

Avoid assertions in rmap brought in with llite read-ahead by using low bits of
page->pointer (spit) instead of bits in page->flags.  This is temporary until
we can get the kernel upstream involved in a more thorough fix to the page
cache API.

Didn't cause regressions in buffalo.

be evicted if lock is revoked.
b=2451
r=phik

r=adilger
(didn't see regressions in buffalo, confirmed read throughput increases
with sf and fpp multi-node IOR)

This cleans up llite's readpage path and implements our own read-ahead window
that hangs off of ll_file_data.  The broad goal is to keep a fair amount of
read-ahead pages issued and queued which can be fired off into read rpcs as
read-ahead rpcs are completed.

  of their stay in the page cache.  This lets us display the contents
  of the page cache via llite/*/dump_pgcache file.  This was done as part
  of b=2252 and is being committed seperately from the read-ahead work.

Back out patch from bug 1557, because it causes the crash described in
bug 2316.

fix for #2319, make osic to be allocated separately and implement proper
refcounting for it.
Also adds a test to sanity.sh that checks for (fixed) crash.

r: Peter

lfs catinfo <keyword>
Fetching logs information from client node. Now keywords include:
config and deletions. Others will be added in future.

minor state cleanup from matching error return paths

A slight reorganization of ll_intent_release, so we can drop the MDS
lock early.

Break cyclic locking deadlock by dropping the MDC read lock before we
take the OSC read lock during getattr intents

Be more careful about the return codes from obd_match, lest we try to
cancel a lock which was never granted.

r=shaver
Print a much more meaningful error when a client is rejected because a
service node is waiting for recoverable clients.

b=1570