From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
To: Ingo Molnar <mingo@redhat.com>,
Juri Lelli <juri.lelli@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Vincent Guittot <vincent.guittot@linaro.org>
Cc: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
"Jonathan Corbet" <corbet@lwn.net>,
"Linux Doc Mailing List" <linux-doc@vger.kernel.org>,
Ben Segall <bsegall@google.com>,
Daniel Bristot de Oliveira <bristot@redhat.com>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Mel Gorman <mgorman@suse.de>,
Steven Rostedt <rostedt@goodmis.org>,
linux-kernel@vger.kernel.org
Subject: [PATCH v4 24/27] shed: fix kernel-doc markup
Date: Mon, 16 Nov 2020 11:18:20 +0100 [thread overview]
Message-ID: <7cf5d2691e70ab82c332a335d21f6f04c0f742ab.1605521731.git.mchehab+huawei@kernel.org> (raw)
In-Reply-To: <cover.1605521731.git.mchehab+huawei@kernel.org>
Kernel-doc requires that a kernel-doc markup to be immediatly
below the function prototype, as otherwise it will rename it.
So, move sys_sched_yield() markup to the right place.
Also fix the cpu_util() markup: Kernel-doc markups
should use this format:
identifier - description
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
kernel/sched/core.c | 16 ++++++++--------
kernel/sched/fair.c | 2 +-
2 files changed, 9 insertions(+), 9 deletions(-)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 02076e6d3792..9d41378ae8f3 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -6560,65 +6560,65 @@ SYSCALL_DEFINE3(sched_getaffinity, pid_t, pid, unsigned int, len,
if (len & (sizeof(unsigned long)-1))
return -EINVAL;
if (!alloc_cpumask_var(&mask, GFP_KERNEL))
return -ENOMEM;
ret = sched_getaffinity(pid, mask);
if (ret == 0) {
unsigned int retlen = min(len, cpumask_size());
if (copy_to_user(user_mask_ptr, mask, retlen))
ret = -EFAULT;
else
ret = retlen;
}
free_cpumask_var(mask);
return ret;
}
-/**
- * sys_sched_yield - yield the current processor to other threads.
- *
- * This function yields the current CPU to other tasks. If there are no
- * other threads running on this CPU then this function will return.
- *
- * Return: 0.
- */
static void do_sched_yield(void)
{
struct rq_flags rf;
struct rq *rq;
rq = this_rq_lock_irq(&rf);
schedstat_inc(rq->yld_count);
current->sched_class->yield_task(rq);
preempt_disable();
rq_unlock_irq(rq, &rf);
sched_preempt_enable_no_resched();
schedule();
}
+/**
+ * sys_sched_yield - yield the current processor to other threads.
+ *
+ * This function yields the current CPU to other tasks. If there are no
+ * other threads running on this CPU then this function will return.
+ *
+ * Return: 0.
+ */
SYSCALL_DEFINE0(sched_yield)
{
do_sched_yield();
return 0;
}
#ifndef CONFIG_PREEMPTION
int __sched _cond_resched(void)
{
if (should_resched(0)) {
preempt_schedule_common();
return 1;
}
rcu_all_qs();
return 0;
}
EXPORT_SYMBOL(_cond_resched);
#endif
/*
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 27536f37ba1a..cb7cd7d8a28f 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -6310,41 +6310,41 @@ static int select_idle_sibling(struct task_struct *p, int prev, int target)
sd = rcu_dereference(per_cpu(sd_llc, target));
if (!sd)
return target;
i = select_idle_core(p, sd, target);
if ((unsigned)i < nr_cpumask_bits)
return i;
i = select_idle_cpu(p, sd, target);
if ((unsigned)i < nr_cpumask_bits)
return i;
i = select_idle_smt(p, sd, target);
if ((unsigned)i < nr_cpumask_bits)
return i;
return target;
}
/**
- * Amount of capacity of a CPU that is (estimated to be) used by CFS tasks
+ * cpu_util - Estimates the amount of capacity of a CPU used by CFS tasks.
* @cpu: the CPU to get the utilization of
*
* The unit of the return value must be the one of capacity so we can compare
* the utilization with the capacity of the CPU that is available for CFS task
* (ie cpu_capacity).
*
* cfs_rq.avg.util_avg is the sum of running time of runnable tasks plus the
* recent utilization of currently non-runnable tasks on a CPU. It represents
* the amount of utilization of a CPU in the range [0..capacity_orig] where
* capacity_orig is the cpu_capacity available at the highest frequency
* (arch_scale_freq_capacity()).
* The utilization of a CPU converges towards a sum equal to or less than the
* current capacity (capacity_curr <= capacity_orig) of the CPU because it is
* the running time on this CPU scaled by capacity_curr.
*
* The estimated utilization of a CPU is defined to be the maximum between its
* cfs_rq.avg.util_avg and the sum of the estimated utilization of the tasks
* currently RUNNABLE on that CPU.
* This allows to properly represent the expected utilization of a CPU which
* has just got a big task running since a long sleep period. At the same time
--
2.28.0
next prev parent reply other threads:[~2020-11-16 11:14 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-16 10:17 [PATCH v4 00/27]Fix several bad kernel-doc markups Mauro Carvalho Chehab
2020-11-16 10:17 ` [PATCH v4 01/27] net: phy: fix " Mauro Carvalho Chehab
2020-11-16 10:17 ` [PATCH v4 02/27] net: datagram: fix some " Mauro Carvalho Chehab
2020-11-16 10:20 ` Kirill Tkhai
2020-11-16 10:17 ` [PATCH v4 03/27] net: core: " Mauro Carvalho Chehab
2020-11-16 10:18 ` [PATCH v4 04/27] s390: fix " Mauro Carvalho Chehab
2020-11-16 10:25 ` Cornelia Huck
2020-11-16 10:38 ` Vineeth Vijayan
2020-11-16 12:04 ` Vineeth Vijayan
2020-11-16 10:18 ` [PATCH v4 05/27] drm: fix some " Mauro Carvalho Chehab
2020-11-16 11:37 ` Jani Nikula
2020-11-16 19:48 ` Daniel Vetter
2020-11-16 10:18 ` [PATCH v4 06/27] HSI: fix a kernel-doc markup Mauro Carvalho Chehab
2020-11-16 10:18 ` [PATCH v4 07/27] IB: fix kernel-doc markups Mauro Carvalho Chehab
2020-11-16 10:36 ` Gustavo A. R. Silva
2020-11-23 23:45 ` Jason Gunthorpe
2020-12-01 11:39 ` Mauro Carvalho Chehab
2020-11-16 10:18 ` [PATCH v4 08/27] parport: fix a kernel-doc markup Mauro Carvalho Chehab
2020-11-16 10:18 ` [PATCH v4 09/27] rapidio: fix kernel-doc a markup Mauro Carvalho Chehab
2020-11-16 10:18 ` [PATCH v4 10/27] video: fix some kernel-doc markups Mauro Carvalho Chehab
2020-11-16 15:36 ` Daniel Vetter
2020-11-16 16:38 ` Mauro Carvalho Chehab
2020-11-16 17:24 ` Daniel Vetter
2020-11-16 18:11 ` Sam Ravnborg
2020-11-16 19:43 ` Daniel Vetter
2020-11-16 18:42 ` Mauro Carvalho Chehab
2020-11-16 10:18 ` [PATCH v4 11/27] fs: fix " Mauro Carvalho Chehab
2020-11-16 10:18 ` [PATCH v4 12/27] jbd2: " Mauro Carvalho Chehab
2020-11-20 3:38 ` Theodore Y. Ts'o
2020-11-16 10:18 ` [PATCH v4 13/27] pstore/zone: fix a kernel-doc markup Mauro Carvalho Chehab
2020-11-16 10:18 ` [PATCH v4 14/27] completion: fix kernel-doc markups Mauro Carvalho Chehab
2020-11-16 11:36 ` Peter Zijlstra
2020-11-16 10:18 ` [PATCH v4 15/27] firmware: stratix10-svc: " Mauro Carvalho Chehab
2020-11-16 10:18 ` [PATCH v4 16/27] connector: fix a kernel-doc markup Mauro Carvalho Chehab
2020-11-16 10:18 ` [PATCH v4 17/27] lib/crc7: " Mauro Carvalho Chehab
2020-11-16 10:18 ` [PATCH v4 18/27] hrtimer: fix kernel-doc markups Mauro Carvalho Chehab
2020-11-16 10:18 ` [PATCH v4 19/27] genirq: " Mauro Carvalho Chehab
2020-11-16 10:18 ` [PATCH v4 20/27] list: fix a typo at the kernel-doc markup Mauro Carvalho Chehab
2020-11-16 19:57 ` Paul E. McKenney
2020-11-16 10:18 ` [PATCH v4 21/27] memblock: fix kernel-doc markups Mauro Carvalho Chehab
2020-11-16 10:18 ` [PATCH v4 22/27] w1: fix a kernel-doc markup Mauro Carvalho Chehab
2020-11-16 10:18 ` [PATCH v4 23/27] resource: fix kernel-doc markups Mauro Carvalho Chehab
2020-11-16 10:18 ` Mauro Carvalho Chehab [this message]
2020-11-16 12:34 ` [PATCH v4 24/27] shed: fix kernel-doc markup Vincent Guittot
2020-11-16 10:18 ` [PATCH v4 25/27] mm: fix kernel-doc markups Mauro Carvalho Chehab
2020-11-16 10:18 ` [PATCH v4 26/27] selftests: kselftest_harness.h: partially " Mauro Carvalho Chehab
2020-11-16 10:18 ` [PATCH v4 27/27] scripts: kernel-doc: validate kernel-doc markup with the actual names Mauro Carvalho Chehab
2020-11-16 15:06 ` kernel test robot
2020-11-16 15:42 ` kernel test robot
2020-11-16 15:51 ` kernel test robot
2020-11-17 22:19 ` [PATCH v4 00/27]Fix several bad kernel-doc markups Jakub Kicinski
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