I am pretty sure you are right, I also noticed this behavior trying to
debug some name mangling issues that I head.
In addition, the description that "nomapchars" is the "default"
behavior is also wrong. Inspecting smb3_init_fs_context in the kernel
source (as of 6.13), it says "default to SFM style remapping of seven
reserved characters unless user overrides it or we negotiate CIFS POSIX
where it is unnecessary."
Also, the SFM style remapping does a bit more than documented. It also
converts double quotes (") in all positions and space and period chars
at the end of path components.
As far as I can tell, The Linux kernel documentation at
https://docs.kernel.org/admin-guide/cifs/usage.html has the same
issues.
I'm willing to propose changes to the documentation if someone can
confirm that the above statements are indeed correct.
