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It is known that ext2/ext3 FS have a rather low limit of about 32k files/directories per directory.

It looks like ReiserFS is limited in practice by the r5 hash function which allows about 1 200 000 file names without collisions.

But what about other common Linux File Systems? JFS, XFS, Btrfs, Reiser4, ext4,...

Thanks in advance!

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