On Thu, Feb 17, 2022 at 07:20:11AM +0000, Christophe Leroy wrote:
And we have also user_access_begin()/user_read_access_begin()/user_write_access_begin() which call access_ok() then do the real work. Could be made generic with call to some arch specific __user_access_begin() and friends after the access_ok() and eventually the might_fault().
Not a good idea, considering the fact that we do not want to invite uses of "faster" variants...