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14f08c976f
Since the sched_priority for SCHED_OTHER is always 0, it makes no
sence to set it.
Setting nice for SCHED_OTHER seems more meaningful.
Link: https://lkml.kernel.org/r/20240207065142.1753909-1-limingming3@lixiang.com
Cc: stable@vger.kernel.org
Fixes: b1696371d8 ("rtla: Helper functions for rtla")
Signed-off-by: limingming3 <limingming3@lixiang.com>
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
71 lines
1.7 KiB
C
71 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <stdint.h>
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#include <time.h>
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#include <sched.h>
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/*
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* '18446744073709551615\0'
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*/
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#define BUFF_U64_STR_SIZE 24
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#define MAX_PATH 1024
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#define MAX_NICE 20
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#define MIN_NICE -19
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#define container_of(ptr, type, member)({ \
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const typeof(((type *)0)->member) *__mptr = (ptr); \
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(type *)((char *)__mptr - offsetof(type, member)) ; })
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extern int config_debug;
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void debug_msg(const char *fmt, ...);
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void err_msg(const char *fmt, ...);
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long parse_seconds_duration(char *val);
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void get_duration(time_t start_time, char *output, int output_size);
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int parse_cpu_list(char *cpu_list, char **monitored_cpus);
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long long get_llong_from_str(char *start);
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static inline void
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update_min(unsigned long long *a, unsigned long long *b)
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{
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if (*a > *b)
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*a = *b;
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}
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static inline void
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update_max(unsigned long long *a, unsigned long long *b)
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{
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if (*a < *b)
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*a = *b;
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}
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static inline void
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update_sum(unsigned long long *a, unsigned long long *b)
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{
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*a += *b;
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}
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struct sched_attr {
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uint32_t size;
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uint32_t sched_policy;
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uint64_t sched_flags;
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int32_t sched_nice;
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uint32_t sched_priority;
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uint64_t sched_runtime;
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uint64_t sched_deadline;
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uint64_t sched_period;
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};
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int parse_prio(char *arg, struct sched_attr *sched_param);
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int parse_cpu_set(char *cpu_list, cpu_set_t *set);
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int __set_sched_attr(int pid, struct sched_attr *attr);
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int set_comm_sched_attr(const char *comm_prefix, struct sched_attr *attr);
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int set_comm_cgroup(const char *comm_prefix, const char *cgroup);
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int set_pid_cgroup(pid_t pid, const char *cgroup);
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int set_cpu_dma_latency(int32_t latency);
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int auto_house_keeping(cpu_set_t *monitored_cpus);
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#define ns_to_usf(x) (((double)x/1000))
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#define ns_to_per(total, part) ((part * 100) / (double)total)
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