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Date: Sun, 18 Aug 2013 18:50:46 -0700 From: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com> To: Josh Triplett <josh@...htriplett.org> Cc: linux-kernel@...r.kernel.org, mingo@...e.hu, laijs@...fujitsu.com, dipankar@...ibm.com, akpm@...ux-foundation.org, mathieu.desnoyers@...ymtl.ca, niv@...ibm.com, tglx@...utronix.de, peterz@...radead.org, rostedt@...dmis.org, dhowells@...hat.com, edumazet@...gle.com, darren@...art.com, fweisbec@...il.com, sbw@....edu Subject: Re: [PATCH tip/core/rcu 7/9] nohz_full: Add full-system-idle arguments to API On Sat, Aug 17, 2013 at 08:11:20PM -0700, Josh Triplett wrote: > On Sat, Aug 17, 2013 at 06:49:42PM -0700, Paul E. McKenney wrote: > > From: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com> > > > > This commit adds an isidle and jiffies argument to force_qs_rnp(), > > dyntick_save_progress_counter(), and rcu_implicit_dynticks_qs() to enable > > RCU's force-quiescent-state process to check for full-system idle. > > > > Signed-off-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com> > > Cc: Frederic Weisbecker <fweisbec@...il.com> > > Cc: Steven Rostedt <rostedt@...dmis.org> > > Cc: Lai Jiangshan <laijs@...fujitsu.com> > > [ paulmck: Use true and false for boolean constants per Lai Jiangshan. ] > > One optional comment below; with or without that, > Reviewed-by: Josh Triplett <josh@...htriplett.org> > > > kernel/rcutree.c | 23 ++++++++++++++++------- > > 1 file changed, 16 insertions(+), 7 deletions(-) > > > > diff --git a/kernel/rcutree.c b/kernel/rcutree.c > > index b0d2cc3..f1a0b05 100644 > > --- a/kernel/rcutree.c > > +++ b/kernel/rcutree.c > > @@ -246,7 +246,9 @@ module_param(jiffies_till_next_fqs, ulong, 0644); > > > > static void rcu_start_gp_advanced(struct rcu_state *rsp, struct rcu_node *rnp, > > struct rcu_data *rdp); > > -static void force_qs_rnp(struct rcu_state *rsp, int (*f)(struct rcu_data *)); > > +static void force_qs_rnp(struct rcu_state *rsp, > > + int (*f)(struct rcu_data *, bool *, unsigned long *), > > + bool *isidle, unsigned long *maxj); > > You might consider giving the parameters of the function pointer names > (both here and in the definition), to make it more self-documenting. Forces a line break, but given that I couldn't immediately recall all of the parameter names myself, I made the change. ;-) Thanx, Paul -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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