Hi Andreas,
Instead of breaking all filesystems that need to create large files,
the patch should instead set "i_flags | EXT2_LARGEBLK_FL" only on inodes
that are larger than 2TB and use "blocksize" i_blocks on those files.
Do you have any idea when the flag is set and cleared?
This preserves compatibility with existing filesystems and doesn't
impose any breakage opon an existing filesystem for anyone who wants
to use this feature.
I'm afraid that i_blocks of >2TB file would be corrupted if old kernel
or old e2fsprogs touches the file.
--
Takashi Sato
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