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Diffstat (limited to 'kernel/sysctl.c')
-rw-r--r--kernel/sysctl.c239
1 files changed, 230 insertions, 9 deletions
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index dc6858d6639e..81fbed978da3 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -104,6 +104,7 @@ extern char core_pattern[];
extern unsigned int core_pipe_limit;
#endif
extern int pid_max;
+extern int extra_free_kbytes;
extern int pid_max_min, pid_max_max;
extern int percpu_pagelist_fraction;
extern int compat_log;
@@ -284,6 +285,167 @@ static struct ctl_table kern_table[] = {
.mode = 0644,
.proc_handler = proc_dointvec,
},
+ {
+ .procname = "sched_wake_to_idle",
+ .data = &sysctl_sched_wake_to_idle,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ },
+ {
+ .procname = "sched_wakeup_load_threshold",
+ .data = &sysctl_sched_wakeup_load_threshold,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ },
+#ifdef CONFIG_SCHED_FREQ_INPUT
+ {
+ .procname = "sched_freq_inc_notify",
+ .data = &sysctl_sched_freq_inc_notify,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &zero,
+ },
+ {
+ .procname = "sched_freq_dec_notify",
+ .data = &sysctl_sched_freq_dec_notify,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &zero,
+ },
+#endif
+#ifdef CONFIG_SCHED_HMP
+ {
+ .procname = "sched_cpu_high_irqload",
+ .data = &sysctl_sched_cpu_high_irqload,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ },
+ {
+ .procname = "sched_ravg_hist_size",
+ .data = &sysctl_sched_ravg_hist_size,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = sched_window_update_handler,
+ },
+ {
+ .procname = "sched_window_stats_policy",
+ .data = &sysctl_sched_window_stats_policy,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = sched_window_update_handler,
+ },
+ {
+ .procname = "sched_spill_load",
+ .data = &sysctl_sched_spill_load_pct,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = sched_hmp_proc_update_handler,
+ },
+ {
+ .procname = "sched_spill_nr_run",
+ .data = &sysctl_sched_spill_nr_run,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &zero,
+ },
+ {
+ .procname = "sched_upmigrate",
+ .data = &sysctl_sched_upmigrate_pct,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = sched_hmp_proc_update_handler,
+ },
+ {
+ .procname = "sched_downmigrate",
+ .data = &sysctl_sched_downmigrate_pct,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = sched_hmp_proc_update_handler,
+ },
+ {
+ .procname = "sched_init_task_load",
+ .data = &sysctl_sched_init_task_load_pct,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = sched_hmp_proc_update_handler,
+ },
+ {
+ .procname = "sched_select_prev_cpu_us",
+ .data = &sysctl_sched_select_prev_cpu_us,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = sched_hmp_proc_update_handler,
+ },
+ {
+ .procname = "sched_enable_colocation",
+ .data = &sysctl_sched_enable_colocation,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ .extra1 = &zero,
+ .extra2 = &one,
+ },
+ {
+ .procname = "sched_restrict_cluster_spill",
+ .data = &sysctl_sched_restrict_cluster_spill,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &zero,
+ .extra2 = &one,
+ },
+ {
+ .procname = "sched_small_wakee_task_load",
+ .data = &sysctl_sched_small_wakee_task_load_pct,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = sched_hmp_proc_update_handler,
+ },
+ {
+ .procname = "sched_big_waker_task_load",
+ .data = &sysctl_sched_big_waker_task_load_pct,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = sched_hmp_proc_update_handler,
+ },
+#ifdef CONFIG_SCHED_FREQ_INPUT
+ {
+ .procname = "sched_new_task_windows",
+ .data = &sysctl_sched_new_task_windows,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = sched_window_update_handler,
+ },
+ {
+ .procname = "sched_pred_alert_freq",
+ .data = &sysctl_sched_pred_alert_freq,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &zero,
+ },
+ {
+ .procname = "sched_freq_aggregate",
+ .data = &sysctl_sched_freq_aggregate,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = sched_window_update_handler,
+ },
+#endif
+ {
+ .procname = "sched_boost",
+ .data = &sysctl_sched_boost,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = sched_boost_handler,
+ },
+#endif /* CONFIG_SCHED_HMP */
#ifdef CONFIG_SCHED_DEBUG
{
.procname = "sched_min_granularity_ns",
@@ -1172,6 +1334,27 @@ static struct ctl_table kern_table[] = {
.extra2 = &one,
},
#endif
+#if defined(CONFIG_ARM) || defined(CONFIG_ARM64)
+ {
+ .procname = "boot_reason",
+ .data = &boot_reason,
+ .maxlen = sizeof(int),
+ .mode = 0444,
+ .proc_handler = proc_dointvec,
+ },
+
+ {
+ .procname = "cold_boot",
+ .data = &cold_boot,
+ .maxlen = sizeof(int),
+ .mode = 0444,
+ .proc_handler = proc_dointvec,
+ },
+#endif
+/*
+ * NOTE: do not add new entries to this table unless you have read
+ * Documentation/sysctl/ctl_unnumbered.txt
+ */
{ }
};
@@ -1393,6 +1576,14 @@ static struct ctl_table vm_table[] = {
.extra1 = &zero,
},
{
+ .procname = "extra_free_kbytes",
+ .data = &extra_free_kbytes,
+ .maxlen = sizeof(extra_free_kbytes),
+ .mode = 0644,
+ .proc_handler = min_free_kbytes_sysctl_handler,
+ .extra1 = &zero,
+ },
+ {
.procname = "percpu_pagelist_fraction",
.data = &percpu_pagelist_fraction,
.maxlen = sizeof(percpu_pagelist_fraction),
@@ -1568,6 +1759,44 @@ static struct ctl_table vm_table[] = {
.mode = 0644,
.proc_handler = proc_doulongvec_minmax,
},
+#ifdef CONFIG_HAVE_ARCH_MMAP_RND_BITS
+ {
+ .procname = "mmap_rnd_bits",
+ .data = &mmap_rnd_bits,
+ .maxlen = sizeof(mmap_rnd_bits),
+ .mode = 0600,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = (void *)&mmap_rnd_bits_min,
+ .extra2 = (void *)&mmap_rnd_bits_max,
+ },
+#endif
+#ifdef CONFIG_HAVE_ARCH_MMAP_RND_COMPAT_BITS
+ {
+ .procname = "mmap_rnd_compat_bits",
+ .data = &mmap_rnd_compat_bits,
+ .maxlen = sizeof(mmap_rnd_compat_bits),
+ .mode = 0600,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = (void *)&mmap_rnd_compat_bits_min,
+ .extra2 = (void *)&mmap_rnd_compat_bits_max,
+ },
+#endif
+#ifdef CONFIG_SWAP
+ {
+ .procname = "swap_ratio",
+ .data = &sysctl_swap_ratio,
+ .maxlen = sizeof(sysctl_swap_ratio),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ },
+ {
+ .procname = "swap_ratio_enable",
+ .data = &sysctl_swap_ratio_enable,
+ .maxlen = sizeof(sysctl_swap_ratio_enable),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ },
+#endif
{ }
};
@@ -2015,15 +2244,7 @@ static int do_proc_dointvec_conv(bool *negp, unsigned long *lvalp,
int write, void *data)
{
if (write) {
- if (*negp) {
- if (*lvalp > (unsigned long) INT_MAX + 1)
- return -EINVAL;
- *valp = -*lvalp;
- } else {
- if (*lvalp > (unsigned long) INT_MAX)
- return -EINVAL;
- *valp = *lvalp;
- }
+ *valp = *negp ? -*lvalp : *lvalp;
} else {
int val = *valp;
if (val < 0) {
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-09 05:47:48 +0000