user_access_{save,restore}() semantics
From: Christoph Hellwig
Date: Fri Jul 10 2020 - 12:15:39 EST
Hi Peter,
can you explain (and maybe document while we're at it) what the
exact semantics of the user_access_{save,restore} helpers are?
Reverse engineering from the commit text they seem to be about
saving the current uaccess state. But do they also enable/disable
anything?