sched/cputime: Use this_cpu_add() in task_group_account_field()
sched/cputime: Use this_cpu_add() in task_group_account_field()

Use of a this_cpu() operation reduces the number of instructions used
for accounting (account_user_time()) and frees up some registers. This is in
the scheduler tick hotpath.

Signed-off-by: Christoph Lameter <ef3ecccf258fa062c5c6521a4887d40541963af7@linux.com>
Signed-off-by: Peter Zijlstra <3fddac958924aef220f202ca567388ddab3f14a8@infradead.org>
Link: 10424252d80ded49eac210d1deab7f278bfeb5fb@email.amazonses.com
Signed-off-by: Ingo Molnar <9dbbbf0688fedc85ad4da37637f1a64b8c718ee2@kernel.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs