Hi all,
In my continuing quest to finish the 64-bit conversion of e2fsprogs, I
ran into this structure exported in ext2fs.h:
struct ext2_db_entry {
ext2_ino_t ino;
blk_t blk;
int blockcnt;
};
The "blk_t" is the problem here - we need a blk64_t. A pointer to
this structure is passed to the user-provided directory block iterator
in ext2fs_dblist_iterate().
Assuming the goal is to preserve the ext2fs_dblist ABI, I can see two
ways of doing this:
1. Define ext2_db_entry2, ext2_dblist2, and ext2fs_dblist_*2() and do
the usual translation/conversion function business.
2. Use the magic number in the dblist to differentiate between old and
new-style dblists and keep the existing interfaces for functions that
only pass around pointers. We'll also need ext2fs_dblist_iterate2()
and ext2fs_get_last2().
I find option #1 slightly less unpalatable than #2. Does anyone have
an option #3?
-VAL
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