moving to the right side
- ext3_ext_find_goal() takes into account offset of a block to be allocated
  (thanks to Andreas for smart idea)

  cache-aliasing problems
- ext3_forget() should be used in conjuction with ext3_free_blocks()

NOTE: 2.4.24 + extents + batching block allocation passes data-consistency
      tests now (at least I haven't seen problems for many hours of testing)

r=shaver

rewrite new_uuid function for lmc

up for it.
r=coop

- 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.

  lots of tweaking to be done yet

    work-around for missing #defines that are now in the QSW release).

  possible deadlock
- locking in extent's ioctl added
- ext3_ext_walk_space() drops bh's references in path before finding
  next extent

NOTE: dbench and syntetic tests work OK in vmware for many hours

tests by itself and give detailed results.

b=2516

b=2578

b=2591
r=zab,shaver

  - fixed goal selection
  - more bits of batching allocation

r=shaver

Deal with the double-quote,single-quote, and backslash in batchfile of "lmc --batch batchfile".

b=2370
r=zab

b=2503
r=zab,shaver

b=2464

rename snapfs-core-2.4.20.patch to ext3-snapfs-2.4.20.patch, resolve some confilcts after add ext3-extents patch, some minor fix

r=shaver
Don't allow batchfile contain --merge, --input and --output for lmc --batch batchfile.

merge up to RC_1_0_3_5:

work around lameness in mkkerneldoth

r=ccooper

- bug in extents fixed: it could cause tree corruption
- minor bug in extents fixed: during tree growing it could possible
  to get suboptimal size for index block

1)In migration, get rid of page and buffer of src inode(fs_flushinval_pages). 2)fix some lock problems in ext3_create_indirect

is reported at the end.

1)add clonefs check before snap delete
2)some fix about orphan list
3)initialize inode in mknod, mkdir symlink ...
4)some fix about symlinks
5)add some snapshot filter operations (listxattr, getxattr)
6)some fix about sparse files
7)fix page buffer problems in snap delete and snap_do_cow
8)adding some functions  in snapconf.
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