b=16098

This code was re-written for CMD and hence the Linux copyrights can be removed and Sun copyright has been added.

b=15981
i=adilger
i=girish

fix KEY_IS macro

Branch HEAD
b=14032
i=umka
i=deen

b=11401,15405
i=huanghua
i=tappro

b=14856
i=green
i=johan

fixes for lu_dirent->lde_hash change patch.

to fix bug introduced by lu_dirent-change patch

i=yury.umanets
i=adilger

this patch extends lu_dirent->lde_hash element, which is required for dmu based mdd.
but I am keeping MEA_MAGIC_HASH_SEGMENT hash within 32 bit.

i=yong.fan
i=rahul.deshmukh
i=nikita.danilov

- use req_capsule interface for client.
- add some interoperability support on server side.

- redesigned remote acl support, by FanYong
  b=11842
  r=pravin.shelar, eric.mei
- new sptlrpc configure interface
  b=13642
  r=yong.fan, rahul.deshmukh
- split kerberos keytab for lustre_root
  b=13873
  r=yong.fan, h.huang
- fix setuid for gss with linux keyring
  b=13899
  r=yong.fan, h.huang

b=14482
i=shadow
i=green

Correctly detect the PG_fs_misc and PG_checked flags.

b=14138
r=adilger, nikita

resolve deadlock on i_size_read() introduced by race condition of i_size_write();
Use old size assignment to avoid deadlock (bz14326).

b=14064

- readdir() for liblustre: i=nikita,fanyong
- flock for liblustre and various fixes for liblustre: i=umka,fanyong

b=12052
i=johann
i=nikita

b=13497
i=deen
i=johann

Description: LASSERT_{REQ,REP}SWAB macros are buggy
Details    : If SWAB_PARANOIA is disabled, the LASSERT_REQSWAB and
             LASSERT_REPSWAB macros become no-ops, which is incorrect. Drop
             these macros and replace them with their difinitions instead.

b=13568
i=adilger
i=green

Remove 2.4 kernel check from 1.8.0 for llite subsystem.

r=Nathan, Adilger

When striping policy is set on root of file system using "lfs setstripe", it changes the default stripe policy.

b=13581
i=tappro
i=huanghua

Replay Size-on-MDS related RPCs properly.

  b=13060
  i=vitaly,huanghua

b=2369
i=johann, deen

replace inode->i_size access with i_size_read/write()

b=11829
i=huanghua
i=tappro

early lock cancel for cmd

Quiet -Wundef compile warning.

- md_close() chnaged to use mdc_op_data like other md_* functions instead of using obdo.
- fixed prototype declaration for llapi_lov_get_uuids() - bug #6900
- fixed error message in ll_gns_mount_object() - bug #7146

- a lot of fixes about memory allocation/freeing:
  - checks is memory is actually allocated by OBD_ALLOC() before sing it and do appropriate
    actions otherwise.

  - fixed many leaks on error paths.
  - fixed missed OBD_FREE(capa_hash) in capa_cache_cleanup()

- fixed few on stack allocatoins of mdc_op_data in new landed stuff.

- in smfs_mount_cache() fixes correct cleanup in the cases of memory allocation failures.
  Do mntput() for new mounted cache_mnt on error path.

- in smfs_umount_cache() nullify smb->smsi_cache_ftype and smb->smsi_ftype after freeing
  them, to prevent attempt to free again if smfs_umount_cache() is called second time.

land crypto api

 * "EA" is used for lustre internal metadata ea. so change user ea's name to
   "XATTR", including ACLs.
 * remove a unnecessary param from md_getattr().
 * various more fixes.

cache fixes.

  - removed ll_d_lookup() as it is not used anymore.

  - removed struts from real_lookup() with calling revalidate() after lookup if dentry
    is marked GNS_MOUNTING. By now all this dentry marking is not needed anymore.

  - ll_gns_mount_object() is now called from ll_revalidate_it() and ll_lookup_it()

  - fixed deadlock when one thread T1 waits for mount completion and another one T2
    created by upcall script waits for dentry->d_inode->i_sem. By now -ERESTARTSYS
    is returned for T2 and others and whren they restart syscall, dentry is mounted
    already or some error occured and GNS state is READY for mount.

  - fixes in comments and header of llite_gns.c

  - fixed possible incorrect spin_unlock() in ll_gns_mount_object()

  - using lookup_one_len() for looking for mount object instead of d_lookup() which
    looks only in dcache.

  - fixed handling of negative mount object dentry in ll_gns_mount_object()

  - fixed readding mount object content. By now kernel_read() is used instead of
    readpage approach.

  - waking up all possible waiters on finishing GNS mount. Nevertheless in current
    stuff nobody seem waits for mount (-RESTARTSYS is used instead), completion
    exists and it is semanticaly correct to wake up all its waiters. In fact this
    is needed for possible future using. If it happen that nobody will wait on it
    and it is counted not needed, it will be removed.

r=adilger

  choose proper obd to match lock that protects directory content

renamed to dt_exp and lmv_exp is renamed to md_exp. Related changes.

- removed OBD_MD_FID. And fid is now fetched on MDS on all constructive requests. It
is not fetched on unlink(), rename(), etc. This is because OBD_MD_FID flag lost
the sense as lmv layer needs it for all operations (to check if object is splitted).

that is unsigned long too.
- expanding all ->valid fields to 64bit, as it is exhaused and there is no free bits.