Comment 10 for bug 344878

Clear documentation about the limits is all that's required. There're already differences between different filesystems and ecryptfs is a different filesystem from every point of view (compared to lower filesystem). Filesystems do have different limits for the length of directory entries (filenames), the maximum number of files in a single directory, the maximum number of subdirectories in a single directory, the maximum file size of a single file, the maximum size of the whole filesystem. This bug is about a difference between the limit in ecryptfs compared to ext4.

Increasing the maximum length of a directory entry in a single filesystem is definitely a Wishlist item.

A POSIX compatible filesystem must support up to 14 letters in range A-Z, a-z, 0-9 and letters "_.-" in the filenames. Anything above that is some sort of luxury.

Documentation should explain at least following items:
- limits depend on lower filesystems (with formulas to compute actual limits from lower system's limits)
- ecryptfs is not a feature of lower filesystem (e.g. native support for "encrypted directory") but an another filesystem that just happens to use lower filesystem as storage
- documentation should probably explain what mounting a filesystem means -- I would guess that most users are not familiar with the concept.