From: Tejun Heo <tj@kernel.org>
To: mingo@redhat.com, peterz@infradead.org
Cc: linux-kernel@vger.kernel.org, sched-ext@lists.linux.dev,
void@manifault.com, arighi@nvidia.com, changwoo@igalia.com,
Tejun Heo <tj@kernel.org>
Subject: [PATCH 2/4] sched/core: Relocate tg_get_cfs_*() and cpu_cfs_*_read_*()
Date: Fri, 13 Jun 2025 15:23:28 -1000 [thread overview]
Message-ID: <20250614012346.2358261-3-tj@kernel.org> (raw)
In-Reply-To: <20250614012346.2358261-1-tj@kernel.org>
Collect the getters, relocate the trivial interface file wrappers, and put
all of them in period, quota, burst order to prepare for future changes.
Pure reordering. No functional changes.
Signed-off-by: Tejun Heo <tj@kernel.org>
---
kernel/sched/core.c | 134 ++++++++++++++++++++++----------------------
1 file changed, 67 insertions(+), 67 deletions(-)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index a03c3c1d7f50..dc9668a6592f 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -9404,20 +9404,14 @@ static int tg_set_cfs_bandwidth(struct task_group *tg, u64 period, u64 quota,
return 0;
}
-static int tg_set_cfs_quota(struct task_group *tg, long cfs_quota_us)
+static long tg_get_cfs_period(struct task_group *tg)
{
- u64 quota, period, burst;
+ u64 cfs_period_us;
- period = ktime_to_ns(tg->cfs_bandwidth.period);
- burst = tg->cfs_bandwidth.burst;
- if (cfs_quota_us < 0)
- quota = RUNTIME_INF;
- else if ((u64)cfs_quota_us <= U64_MAX / NSEC_PER_USEC)
- quota = (u64)cfs_quota_us * NSEC_PER_USEC;
- else
- return -EINVAL;
+ cfs_period_us = ktime_to_ns(tg->cfs_bandwidth.period);
+ do_div(cfs_period_us, NSEC_PER_USEC);
- return tg_set_cfs_bandwidth(tg, period, quota, burst);
+ return cfs_period_us;
}
static long tg_get_cfs_quota(struct task_group *tg)
@@ -9433,6 +9427,16 @@ static long tg_get_cfs_quota(struct task_group *tg)
return quota_us;
}
+static long tg_get_cfs_burst(struct task_group *tg)
+{
+ u64 burst_us;
+
+ burst_us = tg->cfs_bandwidth.burst;
+ do_div(burst_us, NSEC_PER_USEC);
+
+ return burst_us;
+}
+
static int tg_set_cfs_period(struct task_group *tg, long cfs_period_us)
{
u64 quota, period, burst;
@@ -9447,14 +9451,20 @@ static int tg_set_cfs_period(struct task_group *tg, long cfs_period_us)
return tg_set_cfs_bandwidth(tg, period, quota, burst);
}
-static long tg_get_cfs_period(struct task_group *tg)
+static int tg_set_cfs_quota(struct task_group *tg, long cfs_quota_us)
{
- u64 cfs_period_us;
+ u64 quota, period, burst;
- cfs_period_us = ktime_to_ns(tg->cfs_bandwidth.period);
- do_div(cfs_period_us, NSEC_PER_USEC);
+ period = ktime_to_ns(tg->cfs_bandwidth.period);
+ burst = tg->cfs_bandwidth.burst;
+ if (cfs_quota_us < 0)
+ quota = RUNTIME_INF;
+ else if ((u64)cfs_quota_us <= U64_MAX / NSEC_PER_USEC)
+ quota = (u64)cfs_quota_us * NSEC_PER_USEC;
+ else
+ return -EINVAL;
- return cfs_period_us;
+ return tg_set_cfs_bandwidth(tg, period, quota, burst);
}
static int tg_set_cfs_burst(struct task_group *tg, long cfs_burst_us)
@@ -9471,52 +9481,6 @@ static int tg_set_cfs_burst(struct task_group *tg, long cfs_burst_us)
return tg_set_cfs_bandwidth(tg, period, quota, burst);
}
-static long tg_get_cfs_burst(struct task_group *tg)
-{
- u64 burst_us;
-
- burst_us = tg->cfs_bandwidth.burst;
- do_div(burst_us, NSEC_PER_USEC);
-
- return burst_us;
-}
-
-static s64 cpu_cfs_quota_read_s64(struct cgroup_subsys_state *css,
- struct cftype *cft)
-{
- return tg_get_cfs_quota(css_tg(css));
-}
-
-static int cpu_cfs_quota_write_s64(struct cgroup_subsys_state *css,
- struct cftype *cftype, s64 cfs_quota_us)
-{
- return tg_set_cfs_quota(css_tg(css), cfs_quota_us);
-}
-
-static u64 cpu_cfs_period_read_u64(struct cgroup_subsys_state *css,
- struct cftype *cft)
-{
- return tg_get_cfs_period(css_tg(css));
-}
-
-static int cpu_cfs_period_write_u64(struct cgroup_subsys_state *css,
- struct cftype *cftype, u64 cfs_period_us)
-{
- return tg_set_cfs_period(css_tg(css), cfs_period_us);
-}
-
-static u64 cpu_cfs_burst_read_u64(struct cgroup_subsys_state *css,
- struct cftype *cft)
-{
- return tg_get_cfs_burst(css_tg(css));
-}
-
-static int cpu_cfs_burst_write_u64(struct cgroup_subsys_state *css,
- struct cftype *cftype, u64 cfs_burst_us)
-{
- return tg_set_cfs_burst(css_tg(css), cfs_burst_us);
-}
-
struct cfs_schedulable_data {
struct task_group *tg;
u64 period, quota;
@@ -9649,6 +9613,42 @@ static int cpu_cfs_local_stat_show(struct seq_file *sf, void *v)
return 0;
}
+
+static u64 cpu_cfs_period_read_u64(struct cgroup_subsys_state *css,
+ struct cftype *cft)
+{
+ return tg_get_cfs_period(css_tg(css));
+}
+
+static s64 cpu_cfs_quota_read_s64(struct cgroup_subsys_state *css,
+ struct cftype *cft)
+{
+ return tg_get_cfs_quota(css_tg(css));
+}
+
+static u64 cpu_cfs_burst_read_u64(struct cgroup_subsys_state *css,
+ struct cftype *cft)
+{
+ return tg_get_cfs_burst(css_tg(css));
+}
+
+static int cpu_cfs_period_write_u64(struct cgroup_subsys_state *css,
+ struct cftype *cftype, u64 cfs_period_us)
+{
+ return tg_set_cfs_period(css_tg(css), cfs_period_us);
+}
+
+static int cpu_cfs_quota_write_s64(struct cgroup_subsys_state *css,
+ struct cftype *cftype, s64 cfs_quota_us)
+{
+ return tg_set_cfs_quota(css_tg(css), cfs_quota_us);
+}
+
+static int cpu_cfs_burst_write_u64(struct cgroup_subsys_state *css,
+ struct cftype *cftype, u64 cfs_burst_us)
+{
+ return tg_set_cfs_burst(css_tg(css), cfs_burst_us);
+}
#endif /* CONFIG_CFS_BANDWIDTH */
#ifdef CONFIG_RT_GROUP_SCHED
@@ -9710,16 +9710,16 @@ static struct cftype cpu_legacy_files[] = {
},
#endif
#ifdef CONFIG_CFS_BANDWIDTH
- {
- .name = "cfs_quota_us",
- .read_s64 = cpu_cfs_quota_read_s64,
- .write_s64 = cpu_cfs_quota_write_s64,
- },
{
.name = "cfs_period_us",
.read_u64 = cpu_cfs_period_read_u64,
.write_u64 = cpu_cfs_period_write_u64,
},
+ {
+ .name = "cfs_quota_us",
+ .read_s64 = cpu_cfs_quota_read_s64,
+ .write_s64 = cpu_cfs_quota_write_s64,
+ },
{
.name = "cfs_burst_us",
.read_u64 = cpu_cfs_burst_read_u64,
--
2.49.0
next prev parent reply other threads:[~2025-06-14 1:23 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-14 1:23 [PATCHSET tip/sched/core] sched/core: Reorganize bandwidth control interface handling Tejun Heo
2025-06-14 1:23 ` [PATCH 1/4] sched/fair: Move max_cfs_quota_period decl and default_cfs_period() def from fair.c to sched.h Tejun Heo
2025-06-20 9:49 ` [tip: sched/core] " tip-bot2 for Tejun Heo
2025-06-14 1:23 ` Tejun Heo [this message]
2025-06-20 9:49 ` [tip: sched/core] sched/core: Relocate tg_get_cfs_*() and cpu_cfs_*_read_*() tip-bot2 for Tejun Heo
2025-06-14 1:23 ` [PATCH 3/4] sched/core: Reorganize cgroup bandwidth control interface file reads Tejun Heo
2025-06-20 9:49 ` [tip: sched/core] " tip-bot2 for Tejun Heo
2025-06-14 1:23 ` [PATCH 4/4] sched/core: Reorganize cgroup bandwidth control interface file writes Tejun Heo
2025-06-20 9:49 ` [tip: sched/core] " tip-bot2 for Tejun Heo
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20250614012346.2358261-3-tj@kernel.org \
--to=tj@kernel.org \
--cc=arighi@nvidia.com \
--cc=changwoo@igalia.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@redhat.com \
--cc=peterz@infradead.org \
--cc=sched-ext@lists.linux.dev \
--cc=void@manifault.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®