Hi Ted,
Here is the new version of our e2fsprogs patches to add the 64-bit
support in the e2fsprogs tools.
First, I introduced a new compilation option to build e2fsprogs
utilities for ext4 filesytems and not break backwards compatiblity with
ext2/3 filesystems.
So most of the new code for ext4 is included under #ifdef _EXT4FS_.
The major change is that when compiling with _EXT4FS_ option, blk_t is
64 bits.
I tried to create new interfaces for ext4 which use the new type blk64_t
you defined, so most of the code in the patches 03 and 05 are simply
duplicated from the 32-bit version.
This patchset is also not complete:
TODO:
- support of 48-bit in extents to complete,
- support of 48-bit block number for ACL to do,
- change the format string %u for a block number to %llu in case of
64 bits (many occurences in the code),
- update code under ext2ed/,
- and surely other utilities/interfaces I don't use or know to port.
Code compiled, booted and briefly tested on a 20TB device (mkfs,
debugfs, e2fsck, dumpe2fs, filefrag tested)
Some non-regression tests also done on ext3 filesystems when compiling
code without _EXT4FS_ option.
I splitted the changes into 12 patches to facilitate the review of the
patches. I hope this work will be able to make progress on the code for
the 64-bit support.
Valérie
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