Messages in this thread Patch in this message | | | Date | Wed, 27 Nov 2013 06:10:39 -0800 | From | tip-bot for Vincent Guittot <> | Subject | [tip:sched/core] sched/fair: Move load idx selection in find_idlest_group |
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Commit-ID: c44f2a020072d75d6b0cbf9f139a09719cda9367 Gitweb: http://git.kernel.org/tip/c44f2a020072d75d6b0cbf9f139a09719cda9367 Author: Vincent Guittot <vincent.guittot@linaro.org> AuthorDate: Fri, 18 Oct 2013 13:52:21 +0200 Committer: Ingo Molnar <mingo@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.guittot@linaro.org> Cc: len.brown@intel.com Cc: amit.kucheria@linaro.org Cc: pjt@google.com Cc: l.majewski@samsung.com Cc: Morten.Rasmussen@arm.com Cc: cmetcalf@tilera.com Cc: tony.luck@intel.com Cc: alex.shi@intel.com Cc: preeti@linux.vnet.ibm.com Cc: linaro-kernel@lists.linaro.org Cc: rjw@sisk.pl Cc: paulmck@linux.vnet.ibm.com Cc: corbet@lwn.net Cc: arjan@linux.intel.com Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1382097147-30088-8-git-send-email-vincent.guittot@linaro.org Signed-off-by: Ingo Molnar <mingo@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;
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