On Fri, Feb 12, 2021 at 01:25:21PM +0100, Frederic Weisbecker wrote: > On Thu, Jan 28, 2021 at 05:21:36PM -0300, Marcelo Tosatti wrote: > > Rather than waking up all nohz_full CPUs on the system, only wakeup > > the target CPUs of member threads of the signal. > > > > Reduces interruptions to nohz_full CPUs. > > > > Signed-off-by: Marcelo Tosatti <mtosa...@redhat.com> > > > > Index: linux-2.6/kernel/time/tick-sched.c > > =================================================================== > > --- linux-2.6.orig/kernel/time/tick-sched.c > > +++ linux-2.6/kernel/time/tick-sched.c > > @@ -444,9 +444,20 @@ EXPORT_SYMBOL_GPL(tick_nohz_dep_clear_ta > > * Set a per-taskgroup tick dependency. Posix CPU timers need this in > > order to elapse > > * per process timers. > > */ > > -void tick_nohz_dep_set_signal(struct signal_struct *sig, enum tick_dep_bits > > bit) > > Why not keeping the signal struct as a parameter? > > Thanks.
All callers use "struct signal_struct *sig = tsk->signal" as signal parameter anyway... Can change parameters to (task, signal, bit) if you prefer.
