sched/fair: Rename root_domain::overload to ::overloaded

It is silly to use an ambiguous noun instead of a clear adjective when naming
such a flag ...

Note how root_domain::overutilized already used a proper adjective.

rd->overloaded is now set to 1 when the root domain is overloaded.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Qais Yousef <qyousef@layalina.io>
Cc: Shrikanth Hegde <sshegde@linux.ibm.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/ZgVHq65XKsOZpfgK@gmail.com

kernel/sched/sched.h

@@ -874,7 +874,7 @@ struct root_domain {
 	 * - More than one runnable task
 	 * - Running task is misfit
 	 */
-	int			overload;
+	int			overloaded;
 
 	/* Indicate one or more cpus over-utilized (tipping point) */
 	int			overutilized;
@@ -932,13 +932,13 @@ extern void sched_put_rd(struct root_domain *rd);
 
 static inline int get_rd_overload(struct root_domain *rd)
 {
-	return READ_ONCE(rd->overload);
+	return READ_ONCE(rd->overloaded);
 }
 
 static inline void set_rd_overload(struct root_domain *rd, int status)
 {
 	if (get_rd_overload(rd) != status)
-		WRITE_ONCE(rd->overload, status);
+		WRITE_ONCE(rd->overloaded, status);
 }
 
 #ifdef HAVE_RT_PUSH_IPI