On Wed, Apr 6, 2022 at 7:28 AM <guoren@xxxxxxxxxx> wrote: > > From: Guo Ren <guoren@xxxxxxxxxxxxxxxxx> > > These patch_text implementations are using stop_machine_cpuslocked > infrastructure with atomic cpu_count. The original idea: When the > master CPU patch_text, the others should wait for it. But current > implementation is using the first CPU as master, which couldn't > guarantee the remaining CPUs are waiting. This patch changes the > last CPU as the master to solve the potential risk. > > Signed-off-by: Guo Ren <guoren@xxxxxxxxxxxxxxxxx> > Signed-off-by: Guo Ren <guoren@xxxxxxxxxx> > Reviewed-by: Max Filippov <jcmvbkbc@xxxxxxxxx> > Reviewed-by: Masami Hiramatsu <mhiramat@xxxxxxxxxx> > Cc: <stable@xxxxxxxxxxxxxxx> > --- > arch/xtensa/kernel/jump_label.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) Thanks. Applied to my xtensa tree. -- Max
