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| author |  Qais Yousef <qyousef@layalina.io>
| 2024-03-24 00:45:51 +0000 |
|---|---|---|
| committer |  Ingo Molnar <mingo@kernel.org>
| 2024-03-25 12:09:56 +0100 |
| commit | fa427e8e53d8db15090af7e952a55870dc2a453f (patch) | |
| tree | d288e7ab78790b3166e51dd17b1f54ef9c687299 /kernel/sched | |
| parent | sched/fair: Check if a task has a fitting CPU when updating misfit (diff) | |
| download | linux-fa427e8e53d8db15090af7e952a55870dc2a453f.tar.gz linux-fa427e8e53d8db15090af7e952a55870dc2a453f.tar.bz2 linux-fa427e8e53d8db15090af7e952a55870dc2a453f.zip | |
sched/topology: Remove root_domain::max_cpu_capacity
The value is no longer used as we now keep track of max_allowed_capacity
for each task instead.
Signed-off-by: Qais Yousef <qyousef@layalina.io>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org>
Link: https://lore.kernel.org/r/20240324004552.999936-4-qyousef@layalina.io
Diffstat (limited to 'kernel/sched')
| -rw-r--r-- | kernel/sched/sched.h | 2 | ||||
| -rw-r--r-- | kernel/sched/topology.c | 13 |
2 files changed, 2 insertions, 13 deletions
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index f77c00dddfe1..4f9e952d4fad 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -917,8 +917,6 @@ struct root_domain { cpumask_var_t rto_mask; struct cpupri cpupri; - unsigned long max_cpu_capacity; - /* * NULL-terminated list of performance domains intersecting with the * CPUs of the rd. Protected by RCU. diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c index 44ed3d0812ab..63aecd2a7a9f 100644 --- a/kernel/sched/topology.c +++ b/kernel/sched/topology.c @@ -2514,16 +2514,9 @@ build_sched_domains(const struct cpumask *cpu_map, struct sched_domain_attr *att /* Attach the domains */ rcu_read_lock(); for_each_cpu(i, cpu_map) { - unsigned long capacity; - rq = cpu_rq(i); sd = *per_cpu_ptr(d.sd, i); - capacity = arch_scale_cpu_capacity(i); - /* Use READ_ONCE()/WRITE_ONCE() to avoid load/store tearing: */ - if (capacity > READ_ONCE(d.rd->max_cpu_capacity)) - WRITE_ONCE(d.rd->max_cpu_capacity, capacity); - cpu_attach_domain(sd, d.rd, i); if (lowest_flag_domain(i, SD_CLUSTER)) @@ -2537,10 +2530,8 @@ build_sched_domains(const struct cpumask *cpu_map, struct sched_domain_attr *att if (has_cluster) static_branch_inc_cpuslocked(&sched_cluster_active); - if (rq && sched_debug_verbose) { - pr_info("root domain span: %*pbl (max cpu_capacity = %lu)\n", - cpumask_pr_args(cpu_map), rq->rd->max_cpu_capacity); - } + if (rq && sched_debug_verbose) + pr_info("root domain span: %*pbl\n", cpumask_pr_args(cpu_map)); ret = 0; error: |