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Commit 497f0ab3 authored by Paul E. McKenney's avatar Paul E. McKenney Committed by Ingo Molnar
Browse files

sched: Better name for for_each_domain_rd 



As suggested by Peter Ziljstra, make better choice of name
for for_each_domain_rd(), containing "rcu_dereference", given
that it is but a wrapper for rcu_dereference_check().  The name
rcu_dereference_check_sched_domain() does that and provides a
separate per-subsystem name space.

Signed-off-by: default avatarPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: laijs@cn.fujitsu.com
Cc: dipankar@in.ibm.com
Cc: mathieu.desnoyers@polymtl.ca
Cc: josh@joshtriplett.org
Cc: dvhltc@us.ibm.com
Cc: niv@us.ibm.com
Cc: peterz@infradead.org
Cc: rostedt@goodmis.org
Cc: Valdis.Kletnieks@vt.edu
Cc: dhowells@redhat.com
LKML-Reference: <1266887105-1528-7-git-send-email-paulmck@linux.vnet.ibm.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent d11c563d

kernel/sched.c

+2 −2
Original line number Diff line number Diff line
@@ -645,7 +645,7 @@ static inline int cpu_of(struct rq *rq) 
#endif

}



#define for_each_domain_rd(p) \

#define rcu_dereference_check_sched_domain(p) \

	rcu_dereference_check((p), \

			      rcu_read_lock_sched_held() || \

			      lockdep_is_held(&sched_domains_mutex))
@@ -658,7 +658,7 @@ static inline int cpu_of(struct rq *rq) 
 * preempt-disabled sections.

 */

#define for_each_domain(cpu, __sd) \

	for (__sd = for_each_domain_rd(cpu_rq(cpu)->sd); __sd; __sd = __sd->parent)

	for (__sd = rcu_dereference_check_sched_domain(cpu_rq(cpu)->sd); __sd; __sd = __sd->parent)



#define cpu_rq(cpu)		(&per_cpu(runqueues, (cpu)))

#define this_rq()		(&__get_cpu_var(runqueues))