[v3,0/7] 64bit inode e2fsprogs support

With current hardware clusters faced with the trouble of
creating enough inodes on partitions. Lustre has 0-size
files to store some information about files. Current
MDS disk sizes allow to store large amount of such files, but
EXT4 limits this number to ~4 billions.

Lustre FS has features like DNE to distribute metadata over many targets
(disks), but disks are used not effectively. It would be great to have
ability to store more then ~4 billions inodes on one EXT4 file system.

These patches add 64bit inodes support for e2fsprogs.

Third version of patches set. Changes since v2:
 * preferably keep the INO64 field over LUFID during fsck
 * disallow setting dirdata + inline_data at the same time
 * NEXT_DIRENT macros users
 * fixed using of limits before initialization
 * comments fixes
 * some functions and variables renamed
 * excluded liblustreapi.h header
 * fixed missing EXT4_FEATURE_INCOMPAT_DIRDATA
 * fixed wrong s_reserved[]
 * changed swap functions order
 * patch "quota: swapping s_prj_quota_inum superblock field"
 is excluded and sent separetly
 * quota patch is excluded
 * added oprhanes inodes support
 * minor changes

Andreas Dilger (2):
  e2fsck: add support for dirdata feature
  tests: add basic tests for dirdata feature

Artem Blagodarenko (4):
  debugfs: 64bit inode support
  ext2fs: add EXT4_FEATURE_INCOMPAT_64INODE support
  e2fsck: INODE64 high part is more important then LUFID
  ext2fs: last_oraph 64bit support

Bobi Jam (1):
  tests: e2fsck -D does not change dirdata

 debugfs/debugfs.c                 |   2 +-
 debugfs/htree.c                   |   2 +-
 debugfs/ls.c                      |  69 ++++-
 debugfs/set_fields.c              |   3 +-
 debugfs/util.c                    |   5 +-
 e2fsck/extents.c                  |   8 +-
 e2fsck/journal.c                  |   2 +-
 e2fsck/pass1.c                    |  24 +-
 e2fsck/pass1b.c                   |   2 +-
 e2fsck/pass2.c                    | 170 ++++++++++---
 e2fsck/pass3.c                    |   7 +
 e2fsck/pass4.c                    |   2 +-
 e2fsck/pass5.c                    |  20 +-
 e2fsck/problem.c                  |   5 +
 e2fsck/problem.h                  |   3 +
 e2fsck/quota.c                    |   2 +-
 e2fsck/rehash.c                   |  82 +++---
 e2fsck/super.c                    |  25 +-
 e2fsck/unix.c                     |  15 +-
 ext2ed/inode_com.c                |   7 +-
 ext2ed/super_com.c                |   6 +-
 lib/e2p/feature.c                 |   2 +
 lib/e2p/ls.c                      |  13 +-
 lib/ext2fs/alloc.c                |   8 +-
 lib/ext2fs/alloc_stats.c          |   6 +-
 lib/ext2fs/bitmaps.c              |   2 +-
 lib/ext2fs/dirblock.c             |  33 +++
 lib/ext2fs/ext2_fs.h              |  30 ++-
 lib/ext2fs/ext2fs.h               |  85 ++++++-
 lib/ext2fs/extent.c               |   2 +-
 lib/ext2fs/gen_bitmap64.c         |   3 +-
 lib/ext2fs/get_num_dirs.c         |   4 +-
 lib/ext2fs/icount.c               |   7 +-
 lib/ext2fs/initialize.c           |  20 +-
 lib/ext2fs/inline_data.c          |  16 +-
 lib/ext2fs/inode.c                |   8 +-
 lib/ext2fs/link.c                 |  10 +-
 lib/ext2fs/newdir.c               |   4 +-
 lib/ext2fs/openfs.c               |   4 +-
 lib/ext2fs/rw_bitmaps.c           |   2 +-
 lib/ext2fs/swapfs.c               |   3 +
 lib/ext2fs/tst_bitmaps.c          |   7 +-
 lib/ext2fs/tst_iscan.c            |   2 +-
 lib/ext2fs/tst_super_size.c       |   6 +-
 misc/findsuper.c                  |   8 +-
 misc/fuse2fs.c                    |   8 +-
 misc/mke2fs.c                     |  38 ++-
 misc/tune2fs.c                    |  12 +-
 resize/main.c                     |   3 +-
 resize/resize2fs.c                |  30 +--
 tests/f_dir_optimize/expect.1     | 511 ++++++++++++++++++++++++++++++++++++++
 tests/f_dir_optimize/expect.2     | 511 ++++++++++++++++++++++++++++++++++++++
 tests/f_dir_optimize/image.gz     | Bin 0 -> 102520 bytes
 tests/f_dir_optimize/name         |   1 +
 tests/f_dir_optimize/script       |  36 +++
 tests/f_dirdata/expect.1          |  15 ++
 tests/f_dirdata/expect.2          |   7 +
 tests/f_dirdata/image.gz          | Bin 0 -> 72169 bytes
 tests/f_dirdata/name              |   1 +
 tests/f_dirdata_optimize/expect.1 |  10 +
 tests/f_dirdata_optimize/expect.2 |   7 +
 tests/f_dirdata_optimize/image.gz | Bin 0 -> 32121 bytes
 tests/f_dirdata_optimize/name     |   1 +
 tests/f_dirdata_optimize/script   |   3 +
 tests/progs/test_icount.c         |   4 +-
 65 files changed, 1725 insertions(+), 219 deletions(-)
 create mode 100644 tests/f_dir_optimize/expect.1
 create mode 100644 tests/f_dir_optimize/expect.2
 create mode 100644 tests/f_dir_optimize/image.gz
 create mode 100644 tests/f_dir_optimize/name
 create mode 100644 tests/f_dir_optimize/script
 create mode 100644 tests/f_dirdata/expect.1
 create mode 100644 tests/f_dirdata/expect.2
 create mode 100644 tests/f_dirdata/image.gz
 create mode 100644 tests/f_dirdata/name
 create mode 100644 tests/f_dirdata_optimize/expect.1
 create mode 100644 tests/f_dirdata_optimize/expect.2
 create mode 100644 tests/f_dirdata_optimize/image.gz
 create mode 100644 tests/f_dirdata_optimize/name
 create mode 100644 tests/f_dirdata_optimize/script