rt.c (b97d6790d03b763eca08847a9a5869a4291b9f9a) rt.c (74fd1b8c4419ab9942ccf4e378adf3bd4a86dd69)
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Real-Time Scheduling Class (mapped to the SCHED_FIFO and SCHED_RR
4 * policies)
5 */
6
7int sched_rr_timeslice = RR_TIMESLICE;
8/* More than 4 hours if BW_SHIFT equals 20. */

--- 23 unchanged lines hidden (view full) ---

32 size_t *lenp, loff_t *ppos);
33static struct ctl_table sched_rt_sysctls[] = {
34 {
35 .procname = "sched_rt_period_us",
36 .data = &sysctl_sched_rt_period,
37 .maxlen = sizeof(unsigned int),
38 .mode = 0644,
39 .proc_handler = sched_rt_handler,
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Real-Time Scheduling Class (mapped to the SCHED_FIFO and SCHED_RR
4 * policies)
5 */
6
7int sched_rr_timeslice = RR_TIMESLICE;
8/* More than 4 hours if BW_SHIFT equals 20. */

--- 23 unchanged lines hidden (view full) ---

32 size_t *lenp, loff_t *ppos);
33static struct ctl_table sched_rt_sysctls[] = {
34 {
35 .procname = "sched_rt_period_us",
36 .data = &sysctl_sched_rt_period,
37 .maxlen = sizeof(unsigned int),
38 .mode = 0644,
39 .proc_handler = sched_rt_handler,
40 .extra1 = SYSCTL_ONE,
41 .extra2 = SYSCTL_INT_MAX,
40 },
41 {
42 .procname = "sched_rt_runtime_us",
43 .data = &sysctl_sched_rt_runtime,
44 .maxlen = sizeof(int),
45 .mode = 0644,
46 .proc_handler = sched_rt_handler,
42 },
43 {
44 .procname = "sched_rt_runtime_us",
45 .data = &sysctl_sched_rt_runtime,
46 .maxlen = sizeof(int),
47 .mode = 0644,
48 .proc_handler = sched_rt_handler,
49 .extra1 = SYSCTL_NEG_ONE,
50 .extra2 = SYSCTL_INT_MAX,
47 },
48 {
49 .procname = "sched_rr_timeslice_ms",
50 .data = &sysctl_sched_rr_timeslice,
51 .maxlen = sizeof(int),
52 .mode = 0644,
53 .proc_handler = sched_rr_handler,
54 },

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2984 return 0;
2985}
2986#endif /* CONFIG_SYSCTL */
2987#endif /* CONFIG_RT_GROUP_SCHED */
2988
2989#ifdef CONFIG_SYSCTL
2990static int sched_rt_global_validate(void)
2991{
51 },
52 {
53 .procname = "sched_rr_timeslice_ms",
54 .data = &sysctl_sched_rr_timeslice,
55 .maxlen = sizeof(int),
56 .mode = 0644,
57 .proc_handler = sched_rr_handler,
58 },

--- 2929 unchanged lines hidden (view full) ---

2988 return 0;
2989}
2990#endif /* CONFIG_SYSCTL */
2991#endif /* CONFIG_RT_GROUP_SCHED */
2992
2993#ifdef CONFIG_SYSCTL
2994static int sched_rt_global_validate(void)
2995{
2992 if (sysctl_sched_rt_period <= 0)
2993 return -EINVAL;
2994
2995 if ((sysctl_sched_rt_runtime != RUNTIME_INF) &&
2996 ((sysctl_sched_rt_runtime > sysctl_sched_rt_period) ||
2997 ((u64)sysctl_sched_rt_runtime *
2998 NSEC_PER_USEC > max_rt_runtime)))
2999 return -EINVAL;
3000
3001 return 0;
3002}

--- 14 unchanged lines hidden (view full) ---

3017 int old_period, old_runtime;
3018 static DEFINE_MUTEX(mutex);
3019 int ret;
3020
3021 mutex_lock(&mutex);
3022 old_period = sysctl_sched_rt_period;
3023 old_runtime = sysctl_sched_rt_runtime;
3024
2996 if ((sysctl_sched_rt_runtime != RUNTIME_INF) &&
2997 ((sysctl_sched_rt_runtime > sysctl_sched_rt_period) ||
2998 ((u64)sysctl_sched_rt_runtime *
2999 NSEC_PER_USEC > max_rt_runtime)))
3000 return -EINVAL;
3001
3002 return 0;
3003}

--- 14 unchanged lines hidden (view full) ---

3018 int old_period, old_runtime;
3019 static DEFINE_MUTEX(mutex);
3020 int ret;
3021
3022 mutex_lock(&mutex);
3023 old_period = sysctl_sched_rt_period;
3024 old_runtime = sysctl_sched_rt_runtime;
3025
3025 ret = proc_dointvec(table, write, buffer, lenp, ppos);
3026 ret = proc_dointvec_minmax(table, write, buffer, lenp, ppos);
3026
3027 if (!ret && write) {
3028 ret = sched_rt_global_validate();
3029 if (ret)
3030 goto undo;
3031
3032 ret = sched_dl_global_validate();
3033 if (ret)

--- 57 unchanged lines hidden --- 		3027
3028 if (!ret && write) {
3029 ret = sched_rt_global_validate();
3030 if (ret)
3031 goto undo;
3032
3033 ret = sched_dl_global_validate();
3034 if (ret)

--- 57 unchanged lines hidden ---