timestamp incompatibilities in exfat-fs

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Dear exfat-fs maintainer,


Files from a digital camera on SD-Card with exFAT filesystem shows under linux 5.14.7 (plain vanilla)
incorrect timestamps. (atime, ctime and mtime)
These times are of by +2 hours (2h  ahead). Depends on the timezones used on digital camera and linux computer to display the files.
The same issue is also on the distribution kernel 5.10.46 (debian).

There is a workaround: Using the patched exfat-fuse driver and mounting as fuse filesystem.

see: https://github.com/relan/exfat/pull/119

I tried this patched, and it works. Timestamps are ok with it.
Without the patch, it shows also wrong timestamps, like the exfat driver in kernel!

Can you please have a look into the timestamp handling of the kernel exfat-fs and check how to fix it?


This bug is filed in bugzilla kernel.org (Bug 214555)


thank you and best regards

Reiner



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