On Sat, Apr 17, 2021 at 01:20:12AM +0800, Chung-Chiang Cheng wrote: > hfsplus uses the case-insensitive filenames by default, but VFS negative > dentries are incompatible with case-insensitive. For example, the > following instructions will get a cached filename 'aaa' which isn't > expected. There is no such problem in macOS. Look into the way vfat et.al. are dealing with that (see their ->d_revalidate()).