remove unused files.

d=85

d=84

r=alex
d=17

fix design defect. plugins are needed struct inode to check its flags

r=wangdi

small fixes to provide correct operation order, fix double messages due to using both RETURN and EXIT macro, always initialize several s_ops, plugin framework was added.

r=wangdi

smfs fixes according with dld.

- looking for free loop device is moved to stand alone function find_free_loop()
- int init_loop() do not check if passed size > 8000 before mkfs() as this is checked in mkfs()
- do not stop looking for free loop device after first not accessible device.

r=wangdi

fixes in accordance with SMFS changes

r=wangdi

smfs fixes to make it works in 2.6.7 kernel and in conformity with smfs hld/dld documents.

  additional debug info

r=adilger

  choose proper obd to match lock that protects directory content

- mds_verify_child() is converted to use fid component of lustre_id instead of pair ino+gen for checking if inode has changed while we were waiting for lock.

- assertion was wrong

B: HEAD

  __journal_refile_buffer() shouldn't file buffer
  on metadata list if the buffer is clean

Log:
we should lock the ino not fid in mds_lock_new_child, for protect ino being reused after unlink.
b:5843
r:alex

  accepted in mainline (2.6.11-pre)

serialize orphan cleanups between OSTs

  - in filter_setattr() for test_17 from sanityN.sh.
  - in ll_truncate() do not call truncate on server if new inode size the same as
    previous one. Note: using lov_merge_size() in llite is clear layering violation.
  - fixes in ll_setattr_raw()

- fixed sanity test 57a. It did not work with LMV setup due to unsupported features flag.

- fixed declation of OBD_MD.. flags. They should be declared like the following:
#define OBD_MD_FLALL (0xffffffffffffffffLL)

to show compiller explicitly that they are 64bit value and should considered as such.

- fixed md_reint_rename(). It should first check if objects are the same then check if tgt is subdir of src because for the same inodes is_subdir() returns 1 and mds_reint_rename() for renaming object into itself it returned -EINVAL;

- added asserts in LMV checking if body->valid contains valid fid before accessing it to check if object is splitted.

- in lmv_intent.c after md_intent_lock() checking not only error code, but also disposition, because there are cases when we're interested in name which does not exist, lock is not taken and policy_res2 is cleared in mds_intent_policy(). In this case we should do nothing (especially access body->id1 in LMV), but exit. This is because body->id1 is zero and (body->valid & OBD_MD_FID) == 0 because say mds_getattr_lock() failed before filling out as inode is not found.