diff options
| author | Morten Rasmussen <morten.rasmussen@arm.com> | 2016-07-25 14:34:23 +0100 |
|---|---|---|
| committer | Andres Oportus <andresoportus@google.com> | 2017-06-02 08:01:52 -0700 |
| commit | e51c05769490eede15d97e38b2a470230eea056b (patch) | |
| tree | 5470aeb86e36ad14ccf7c94d6bb07839c16b4e36 /kernel | |
| parent | 68a3b157d92cd802f284ceec44fd26c3b3cec86d (diff) | |
UPSTREAM: sched/core: Pass child domain into sd_init()
If behavioural sched_domain flags depend on topology flags set at higher
domain levels we need a way to update the child domain flags. Moving the
child pointer assignment inside sd_init() should make that possible.
Change-Id: If043921fdf102c310adcc9e0280afa33c48c4783
Signed-off-by: Morten Rasmussen <morten.rasmussen@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: dietmar.eggemann@arm.com
Cc: freedom.tan@mediatek.com
Cc: keita.kobayashi.ym@renesas.com
Cc: mgalbraith@suse.de
Cc: sgurrappadi@nvidia.com
Cc: vincent.guittot@linaro.org
Cc: yuyang.du@intel.com
Link: http://lkml.kernel.org/r/1469453670-2660-7-git-send-email-morten.rasmussen@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit 3676b13e8524c576825fe1e731e347dba0083888)
Signed-off-by: Chris Redpath <chris.redpath@arm.com>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/sched/core.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 1294c3cacab0..4dbabf491aab 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -6778,7 +6778,8 @@ static int sched_domains_curr_level; SD_SHARE_CAP_STATES) static struct sched_domain * -sd_init(struct sched_domain_topology_level *tl, int cpu) +sd_init(struct sched_domain_topology_level *tl, + struct sched_domain *child, int cpu) { struct sched_domain *sd = *per_cpu_ptr(tl->data.sd, cpu); int sd_weight, sd_flags = 0; @@ -6830,6 +6831,7 @@ sd_init(struct sched_domain_topology_level *tl, int cpu) .smt_gain = 0, .max_newidle_lb_cost = 0, .next_decay_max_lb_cost = jiffies, + .child = child, #ifdef CONFIG_SCHED_DEBUG .name = tl->name, #endif @@ -7285,14 +7287,13 @@ struct sched_domain *build_sched_domain(struct sched_domain_topology_level *tl, const struct cpumask *cpu_map, struct sched_domain_attr *attr, struct sched_domain *child, int cpu) { - struct sched_domain *sd = sd_init(tl, cpu); + struct sched_domain *sd = sd_init(tl, child, cpu); cpumask_and(sched_domain_span(sd), cpu_map, tl->mask(cpu)); if (child) { sd->level = child->level + 1; sched_domain_level_max = max(sched_domain_level_max, sd->level); child->parent = sd; - sd->child = child; if (!cpumask_subset(sched_domain_span(child), sched_domain_span(sd))) { |