On Sat, 2024-04-06 at 17:54 +0800, HAN Yuwei wrote: > Hi, all. > > I have encountered someone else's Unicode Normalization Form(NF) > problem today. And I wonder how Linux process filenames in Unicode. > > After some search I found that everybody seems like processed it on > user input level, and nothing is mentioned about how vfs or specific > filesystem treated this problem. ZFS treated it with a option > "normalization" explicitly. Windows (or NTFS?) says "There is no need > to perform any Unicode normalization on path and file name strings". > > Unicode have a dedicated FAQ about this: > https://unicode.org/faq/normalization.html > > Is there any conclusion or discussion I missed? This question is way to broad to answer. Why don't you look in fs/unicode and see where the helpers are used and then ask a more specific question. James
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