From d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 02:45:28 +0000
Subject: [PATCH] add boot partition size
---
kernel/kernel/sched/debug.c | 202 +++++++++++++++++++++++++++-----------------------
1 files changed, 108 insertions(+), 94 deletions(-)
diff --git a/kernel/kernel/sched/debug.c b/kernel/kernel/sched/debug.c
index e97d4be..f799bcb 100644
--- a/kernel/kernel/sched/debug.c
+++ b/kernel/kernel/sched/debug.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* kernel/sched/debug.c
*
* Print the CFS rbtree and other debugging details
*
* Copyright(C) 2007, Red Hat, Inc., Ingo Molnar
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#include "sched.h"
@@ -51,10 +48,11 @@
#define SCHED_FEAT(name, enabled) \
#name ,
-static const char * const sched_feat_names[] = {
+const char * const sched_feat_names[] = {
#include "features.h"
};
+EXPORT_SYMBOL_GPL(sched_feat_names);
#undef SCHED_FEAT
static int sched_feat_show(struct seq_file *m, void *v)
@@ -82,6 +80,7 @@
struct static_key sched_feat_keys[__SCHED_FEAT_NR] = {
#include "features.h"
};
+EXPORT_SYMBOL_GPL(sched_feat_keys);
#undef SCHED_FEAT
@@ -234,49 +233,89 @@
*tablep = NULL;
}
-static int min_load_idx = 0;
-static int max_load_idx = CPU_LOAD_IDX_MAX-1;
-
static void
set_table_entry(struct ctl_table *entry,
const char *procname, void *data, int maxlen,
- umode_t mode, proc_handler *proc_handler,
- bool load_idx)
+ umode_t mode, proc_handler *proc_handler)
{
entry->procname = procname;
entry->data = data;
entry->maxlen = maxlen;
entry->mode = mode;
entry->proc_handler = proc_handler;
+}
- if (load_idx) {
- entry->extra1 = &min_load_idx;
- entry->extra2 = &max_load_idx;
+static int sd_ctl_doflags(struct ctl_table *table, int write,
+ void *buffer, size_t *lenp, loff_t *ppos)
+{
+ unsigned long flags = *(unsigned long *)table->data;
+ size_t data_size = 0;
+ size_t len = 0;
+ char *tmp, *buf;
+ int idx;
+
+ if (write)
+ return 0;
+
+ for_each_set_bit(idx, &flags, __SD_FLAG_CNT) {
+ char *name = sd_flag_debug[idx].name;
+
+ /* Name plus whitespace */
+ data_size += strlen(name) + 1;
}
+
+ if (*ppos > data_size) {
+ *lenp = 0;
+ return 0;
+ }
+
+ buf = kcalloc(data_size + 1, sizeof(*buf), GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ for_each_set_bit(idx, &flags, __SD_FLAG_CNT) {
+ char *name = sd_flag_debug[idx].name;
+
+ len += snprintf(buf + len, strlen(name) + 2, "%s ", name);
+ }
+
+ tmp = buf + *ppos;
+ len -= *ppos;
+
+ if (len > *lenp)
+ len = *lenp;
+ if (len)
+ memcpy(buffer, tmp, len);
+ if (len < *lenp) {
+ ((char *)buffer)[len] = '\n';
+ len++;
+ }
+
+ *lenp = len;
+ *ppos += len;
+
+ kfree(buf);
+
+ return 0;
}
static struct ctl_table *
sd_alloc_ctl_domain_table(struct sched_domain *sd)
{
- struct ctl_table *table = sd_alloc_ctl_entry(14);
+ struct ctl_table *table = sd_alloc_ctl_entry(9);
if (table == NULL)
return NULL;
- set_table_entry(&table[0] , "min_interval", &sd->min_interval, sizeof(long), 0644, proc_doulongvec_minmax, false);
- set_table_entry(&table[1] , "max_interval", &sd->max_interval, sizeof(long), 0644, proc_doulongvec_minmax, false);
- set_table_entry(&table[2] , "busy_idx", &sd->busy_idx, sizeof(int) , 0644, proc_dointvec_minmax, true );
- set_table_entry(&table[3] , "idle_idx", &sd->idle_idx, sizeof(int) , 0644, proc_dointvec_minmax, true );
- set_table_entry(&table[4] , "newidle_idx", &sd->newidle_idx, sizeof(int) , 0644, proc_dointvec_minmax, true );
- set_table_entry(&table[5] , "wake_idx", &sd->wake_idx, sizeof(int) , 0644, proc_dointvec_minmax, true );
- set_table_entry(&table[6] , "forkexec_idx", &sd->forkexec_idx, sizeof(int) , 0644, proc_dointvec_minmax, true );
- set_table_entry(&table[7] , "busy_factor", &sd->busy_factor, sizeof(int) , 0644, proc_dointvec_minmax, false);
- set_table_entry(&table[8] , "imbalance_pct", &sd->imbalance_pct, sizeof(int) , 0644, proc_dointvec_minmax, false);
- set_table_entry(&table[9] , "cache_nice_tries", &sd->cache_nice_tries, sizeof(int) , 0644, proc_dointvec_minmax, false);
- set_table_entry(&table[10], "flags", &sd->flags, sizeof(int) , 0644, proc_dointvec_minmax, false);
- set_table_entry(&table[11], "max_newidle_lb_cost", &sd->max_newidle_lb_cost, sizeof(long), 0644, proc_doulongvec_minmax, false);
- set_table_entry(&table[12], "name", sd->name, CORENAME_MAX_SIZE, 0444, proc_dostring, false);
- /* &table[13] is terminator */
+ set_table_entry(&table[0], "min_interval", &sd->min_interval, sizeof(long), 0644, proc_doulongvec_minmax);
+ set_table_entry(&table[1], "max_interval", &sd->max_interval, sizeof(long), 0644, proc_doulongvec_minmax);
+ set_table_entry(&table[2], "busy_factor", &sd->busy_factor, sizeof(int), 0644, proc_dointvec_minmax);
+ set_table_entry(&table[3], "imbalance_pct", &sd->imbalance_pct, sizeof(int), 0644, proc_dointvec_minmax);
+ set_table_entry(&table[4], "cache_nice_tries", &sd->cache_nice_tries, sizeof(int), 0644, proc_dointvec_minmax);
+ set_table_entry(&table[5], "flags", &sd->flags, sizeof(int), 0444, sd_ctl_doflags);
+ set_table_entry(&table[6], "max_newidle_lb_cost", &sd->max_newidle_lb_cost, sizeof(long), 0644, proc_doulongvec_minmax);
+ set_table_entry(&table[7], "name", sd->name, CORENAME_MAX_SIZE, 0444, proc_dostring);
+ /* &table[8] is terminator */
return table;
}
@@ -417,11 +456,10 @@
}
P(se->load.weight);
- P(se->runnable_weight);
#ifdef CONFIG_SMP
P(se->avg.load_avg);
P(se->avg.util_avg);
- P(se->avg.runnable_load_avg);
+ P(se->avg.runnable_avg);
#endif
#undef PN_SCHEDSTAT
@@ -474,7 +512,7 @@
else
SEQ_printf(m, " %c", task_state_to_char(p));
- SEQ_printf(m, "%15s %5d %9Ld.%06ld %9Ld %5d ",
+ SEQ_printf(m, " %15s %5d %9Ld.%06ld %9Ld %5d ",
p->comm, task_pid_nr(p),
SPLIT_NS(p->se.vruntime),
(long long)(p->nvcsw + p->nivcsw),
@@ -501,10 +539,10 @@
SEQ_printf(m, "\n");
SEQ_printf(m, "runnable tasks:\n");
- SEQ_printf(m, " S task PID tree-key switches prio"
+ SEQ_printf(m, " S task PID tree-key switches prio"
" wait-time sum-exec sum-sleep\n");
SEQ_printf(m, "-------------------------------------------------------"
- "----------------------------------------------------\n");
+ "------------------------------------------------------\n");
rcu_read_lock();
for_each_process_thread(g, p) {
@@ -560,11 +598,10 @@
SEQ_printf(m, " .%-30s: %d\n", "nr_running", cfs_rq->nr_running);
SEQ_printf(m, " .%-30s: %ld\n", "load", cfs_rq->load.weight);
#ifdef CONFIG_SMP
- SEQ_printf(m, " .%-30s: %ld\n", "runnable_weight", cfs_rq->runnable_weight);
SEQ_printf(m, " .%-30s: %lu\n", "load_avg",
cfs_rq->avg.load_avg);
- SEQ_printf(m, " .%-30s: %lu\n", "runnable_load_avg",
- cfs_rq->avg.runnable_load_avg);
+ SEQ_printf(m, " .%-30s: %lu\n", "runnable_avg",
+ cfs_rq->avg.runnable_avg);
SEQ_printf(m, " .%-30s: %lu\n", "util_avg",
cfs_rq->avg.util_avg);
SEQ_printf(m, " .%-30s: %u\n", "util_est_enqueued",
@@ -573,8 +610,8 @@
cfs_rq->removed.load_avg);
SEQ_printf(m, " .%-30s: %ld\n", "removed.util_avg",
cfs_rq->removed.util_avg);
- SEQ_printf(m, " .%-30s: %ld\n", "removed.runnable_sum",
- cfs_rq->removed.runnable_sum);
+ SEQ_printf(m, " .%-30s: %ld\n", "removed.runnable_avg",
+ cfs_rq->removed.runnable_avg);
#ifdef CONFIG_FAIR_GROUP_SCHED
SEQ_printf(m, " .%-30s: %lu\n", "tg_load_avg_contrib",
cfs_rq->tg_load_avg_contrib);
@@ -674,20 +711,12 @@
SEQ_printf(m, " .%-30s: %Ld.%06ld\n", #x, SPLIT_NS(rq->x))
P(nr_running);
- SEQ_printf(m, " .%-30s: %lu\n", "load",
- rq->load.weight);
P(nr_switches);
- P(nr_load_updates);
P(nr_uninterruptible);
PN(next_balance);
SEQ_printf(m, " .%-30s: %ld\n", "curr->pid", (long)(task_pid_nr(rq->curr)));
PN(clock);
PN(clock_task);
- P(cpu_load[0]);
- P(cpu_load[1]);
- P(cpu_load[2]);
- P(cpu_load[3]);
- P(cpu_load[4]);
#undef P
#undef PN
@@ -718,7 +747,7 @@
static const char *sched_tunable_scaling_names[] = {
"none",
- "logaritmic",
+ "logarithmic",
"linear"
};
@@ -791,9 +820,16 @@
int cpu;
sched_debug_header(NULL);
- for_each_online_cpu(cpu)
+ for_each_online_cpu(cpu) {
+ /*
+ * Need to reset softlockup watchdogs on all CPUs, because
+ * another CPU might be blocked waiting for us to process
+ * an IPI or stop_machine.
+ */
+ touch_nmi_watchdog();
+ touch_all_softlockup_watchdogs();
print_cpu(NULL, cpu);
-
+ }
}
/*
@@ -851,10 +887,13 @@
__initcall(init_sched_debug_procfs);
-#define __P(F) SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)F)
-#define P(F) SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)p->F)
-#define __PN(F) SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)F))
-#define PN(F) SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)p->F))
+#define __PS(S, F) SEQ_printf(m, "%-45s:%21Ld\n", S, (long long)(F))
+#define __P(F) __PS(#F, F)
+#define P(F) __PS(#F, p->F)
+#define PM(F, M) __PS(#F, p->F & (M))
+#define __PSN(S, F) SEQ_printf(m, "%-45s:%14Ld.%06ld\n", S, SPLIT_NS((long long)(F)))
+#define __PN(F) __PSN(#F, F)
+#define PN(F) __PSN(#F, p->F)
#ifdef CONFIG_NUMA_BALANCING
@@ -871,17 +910,8 @@
static void sched_show_numa(struct task_struct *p, struct seq_file *m)
{
#ifdef CONFIG_NUMA_BALANCING
- struct mempolicy *pol;
-
if (p->mm)
P(mm->numa_scan_seq);
-
- task_lock(p);
- pol = p->mempolicy;
- if (pol && !(pol->flags & MPOL_F_MORON))
- pol = NULL;
- mpol_get(pol);
- task_unlock(p);
P(numa_pages_migrated);
P(numa_preferred_nid);
@@ -889,7 +919,6 @@
SEQ_printf(m, "current_node=%d, numa_group_id=%d\n",
task_node(p), task_numa_group_id(p));
show_numa_stats(p, m);
- mpol_put(pol);
#endif
}
@@ -903,18 +932,9 @@
SEQ_printf(m,
"---------------------------------------------------------"
"----------\n");
-#define __P(F) \
- SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)F)
-#define P(F) \
- SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)p->F)
-#define P_SCHEDSTAT(F) \
- SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)schedstat_val(p->F))
-#define __PN(F) \
- SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)F))
-#define PN(F) \
- SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)p->F))
-#define PN_SCHEDSTAT(F) \
- SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)schedstat_val(p->F)))
+
+#define P_SCHEDSTAT(F) __PS(#F, schedstat_val(p->F))
+#define PN_SCHEDSTAT(F) __PSN(#F, schedstat_val(p->F))
PN(se.exec_start);
PN(se.vruntime);
@@ -974,40 +994,35 @@
}
__P(nr_switches);
- SEQ_printf(m, "%-45s:%21Ld\n",
- "nr_voluntary_switches", (long long)p->nvcsw);
- SEQ_printf(m, "%-45s:%21Ld\n",
- "nr_involuntary_switches", (long long)p->nivcsw);
+ __PS("nr_voluntary_switches", p->nvcsw);
+ __PS("nr_involuntary_switches", p->nivcsw);
P(se.load.weight);
- P(se.runnable_weight);
#ifdef CONFIG_SMP
P(se.avg.load_sum);
- P(se.avg.runnable_load_sum);
+ P(se.avg.runnable_sum);
P(se.avg.util_sum);
P(se.avg.load_avg);
- P(se.avg.runnable_load_avg);
+ P(se.avg.runnable_avg);
P(se.avg.util_avg);
P(se.avg.last_update_time);
P(se.avg.util_est.ewma);
- P(se.avg.util_est.enqueued);
+ PM(se.avg.util_est.enqueued, ~UTIL_AVG_UNCHANGED);
+#endif
+#ifdef CONFIG_UCLAMP_TASK
+ __PS("uclamp.min", p->uclamp_req[UCLAMP_MIN].value);
+ __PS("uclamp.max", p->uclamp_req[UCLAMP_MAX].value);
+ __PS("effective uclamp.min", uclamp_eff_value(p, UCLAMP_MIN));
+ __PS("effective uclamp.max", uclamp_eff_value(p, UCLAMP_MAX));
#endif
P(policy);
P(prio);
- if (p->policy == SCHED_DEADLINE) {
+ if (task_has_dl_policy(p)) {
P(dl.runtime);
P(dl.deadline);
}
-#if defined(CONFIG_SMP) && defined(CONFIG_PREEMPT_RT_BASE)
- P(migrate_disable);
-#endif
- P(nr_cpus_allowed);
#undef PN_SCHEDSTAT
-#undef PN
-#undef __PN
#undef P_SCHEDSTAT
-#undef P
-#undef __P
{
unsigned int this_cpu = raw_smp_processor_id();
@@ -1015,8 +1030,7 @@
t0 = cpu_clock(this_cpu);
t1 = cpu_clock(this_cpu);
- SEQ_printf(m, "%-45s:%21Ld\n",
- "clock-delta", (long long)(t1-t0));
+ __PS("clock-delta", t1-t0);
}
sched_show_numa(p, m);
--
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