On Tue, May 05, 2020 at 02:44:28PM -0500, Eric W. Biederman wrote: > > At least gcc 8.3 when generating code for x86_64 has a hard time > consolidating multiple calls to current aka get_current(), and winds > up unnecessarily rereading %gs:current_task several times in > setup_new_exec. > > Caching the value of current in the local variable of me generates > slightly better and shorter assembly. > > Signed-off-by: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx> Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx> -- Kees Cook
