Commit-ID:  c44f2a020072d75d6b0cbf9f139a09719cda9367
Gitweb:     http://git.kernel.org/tip/c44f2a020072d75d6b0cbf9f139a09719cda9367
Author:     Vincent Guittot <vincent.guit...@linaro.org>
AuthorDate: Fri, 18 Oct 2013 13:52:21 +0200
Committer:  Ingo Molnar <mi...@kernel.org>
CommitDate: Wed, 27 Nov 2013 13:50:54 +0100

sched/fair: Move load idx selection in find_idlest_group

load_idx is used in find_idlest_group but initialized in select_task_rq_fair
even when not used. The load_idx initialisation is moved in find_idlest_group
and the sd_flag replaces it in the function's args.

Signed-off-by: Vincent Guittot <vincent.guit...@linaro.org>
Cc: len.br...@intel.com
Cc: amit.kuche...@linaro.org
Cc: p...@google.com
Cc: l.majew...@samsung.com
Cc: morten.rasmus...@arm.com
Cc: cmetc...@tilera.com
Cc: tony.l...@intel.com
Cc: alex....@intel.com
Cc: pre...@linux.vnet.ibm.com
Cc: linaro-ker...@lists.linaro.org
Cc: r...@sisk.pl
Cc: paul...@linux.vnet.ibm.com
Cc: cor...@lwn.net
Cc: ar...@linux.intel.com
Signed-off-by: Peter Zijlstra <pet...@infradead.org>
Link: 
http://lkml.kernel.org/r/1382097147-30088-8-git-send-email-vincent.guit...@linaro.org
Signed-off-by: Ingo Molnar <mi...@kernel.org>
---
 kernel/sched/fair.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index e8b652e..6cb36c7 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -4110,12 +4110,16 @@ static int wake_affine(struct sched_domain *sd, struct 
task_struct *p, int sync)
  */
 static struct sched_group *
 find_idlest_group(struct sched_domain *sd, struct task_struct *p,
-                 int this_cpu, int load_idx)
+                 int this_cpu, int sd_flag)
 {
        struct sched_group *idlest = NULL, *group = sd->groups;
        unsigned long min_load = ULONG_MAX, this_load = 0;
+       int load_idx = sd->forkexec_idx;
        int imbalance = 100 + (sd->imbalance_pct-100)/2;
 
+       if (sd_flag & SD_BALANCE_WAKE)
+               load_idx = sd->wake_idx;
+
        do {
                unsigned long load, avg_load;
                int local_group;
@@ -4283,7 +4287,6 @@ select_task_rq_fair(struct task_struct *p, int prev_cpu, 
int sd_flag, int wake_f
        }
 
        while (sd) {
-               int load_idx = sd->forkexec_idx;
                struct sched_group *group;
                int weight;
 
@@ -4292,10 +4295,7 @@ select_task_rq_fair(struct task_struct *p, int prev_cpu, 
int sd_flag, int wake_f
                        continue;
                }
 
-               if (sd_flag & SD_BALANCE_WAKE)
-                       load_idx = sd->wake_idx;
-
-               group = find_idlest_group(sd, p, cpu, load_idx);
+               group = find_idlest_group(sd, p, cpu, sd_flag);
                if (!group) {
                        sd = sd->child;
                        continue;
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to