mm: sched: numa: Implement slow start for working set sampling

[platform/adaptation/renesas_rcar/renesas_kernel.git] / kernel / sysctl.c

diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 84c76a3..48a68cc 100644 (file)
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -97,10 +97,12 @@
 extern int sysctl_overcommit_memory;
 extern int sysctl_overcommit_ratio;
 extern int max_threads;
-extern int core_uses_pid;
 extern int suid_dumpable;
+#ifdef CONFIG_COREDUMP
+extern int core_uses_pid;
 extern char core_pattern[];
 extern unsigned int core_pipe_limit;
+#endif
 extern int pid_max;
 extern int min_free_kbytes;
 extern int pid_max_min, pid_max_max;
@@ -177,8 +179,10 @@ static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write,
 
 static int proc_dointvec_minmax_coredump(struct ctl_table *table, int write,
                void __user *buffer, size_t *lenp, loff_t *ppos);
+#ifdef CONFIG_COREDUMP
 static int proc_dostring_coredump(struct ctl_table *table, int write,
                void __user *buffer, size_t *lenp, loff_t *ppos);
+#endif
 
 #ifdef CONFIG_MAGIC_SYSRQ
 /* Note: sysrq code uses it's own private copy */
@@ -252,9 +256,11 @@ static int min_sched_granularity_ns = 100000;              /* 100 usecs */
 static int max_sched_granularity_ns = NSEC_PER_SEC;    /* 1 second */
 static int min_wakeup_granularity_ns;                  /* 0 usecs */
 static int max_wakeup_granularity_ns = NSEC_PER_SEC;   /* 1 second */
+#ifdef CONFIG_SMP
 static int min_sched_tunable_scaling = SCHED_TUNABLESCALING_NONE;
 static int max_sched_tunable_scaling = SCHED_TUNABLESCALING_END-1;
-#endif
+#endif /* CONFIG_SMP */
+#endif /* CONFIG_SCHED_DEBUG */
 
 #ifdef CONFIG_COMPACTION
 static int min_extfrag_threshold;
@@ -297,6 +303,7 @@ static struct ctl_table kern_table[] = {
                .extra1         = &min_wakeup_granularity_ns,
                .extra2         = &max_wakeup_granularity_ns,
        },
+#ifdef CONFIG_SMP
        {
                .procname       = "sched_tunable_scaling",
                .data           = &sysctl_sched_tunable_scaling,
@@ -343,7 +350,38 @@ static struct ctl_table kern_table[] = {
                .extra1         = &zero,
                .extra2         = &one,
        },
-#endif
+#endif /* CONFIG_SMP */
+#ifdef CONFIG_NUMA_BALANCING
+       {
+               .procname       = "numa_balancing_scan_delay_ms",
+               .data           = &sysctl_numa_balancing_scan_delay,
+               .maxlen         = sizeof(unsigned int),
+               .mode           = 0644,
+               .proc_handler   = proc_dointvec,
+       },
+       {
+               .procname       = "numa_balancing_scan_period_min_ms",
+               .data           = &sysctl_numa_balancing_scan_period_min,
+               .maxlen         = sizeof(unsigned int),
+               .mode           = 0644,
+               .proc_handler   = proc_dointvec,
+       },
+       {
+               .procname       = "numa_balancing_scan_period_max_ms",
+               .data           = &sysctl_numa_balancing_scan_period_max,
+               .maxlen         = sizeof(unsigned int),
+               .mode           = 0644,
+               .proc_handler   = proc_dointvec,
+       },
+       {
+               .procname       = "numa_balancing_scan_size_mb",
+               .data           = &sysctl_numa_balancing_scan_size,
+               .maxlen         = sizeof(unsigned int),
+               .mode           = 0644,
+               .proc_handler   = proc_dointvec,
+       },
+#endif /* CONFIG_NUMA_BALANCING */
+#endif /* CONFIG_SCHED_DEBUG */
        {
                .procname       = "sched_rt_period_us",
                .data           = &sysctl_sched_rt_period,
@@ -404,6 +442,7 @@ static struct ctl_table kern_table[] = {
                .mode           = 0644,
                .proc_handler   = proc_dointvec,
        },
+#ifdef CONFIG_COREDUMP
        {
                .procname       = "core_uses_pid",
                .data           = &core_uses_pid,
@@ -425,6 +464,7 @@ static struct ctl_table kern_table[] = {
                .mode           = 0644,
                .proc_handler   = proc_dointvec,
        },
+#endif
 #ifdef CONFIG_PROC_SYSCTL
        {
                .procname       = "tainted",
@@ -1543,8 +1583,7 @@ static struct ctl_table fs_table[] = {
 };
 
 static struct ctl_table debug_table[] = {
-#if defined(CONFIG_X86) || defined(CONFIG_PPC) || defined(CONFIG_SPARC) || \
-    defined(CONFIG_S390) || defined(CONFIG_TILE) || defined(CONFIG_ARM64)
+#ifdef CONFIG_SYSCTL_EXCEPTION_TRACE
        {
                .procname       = "exception-trace",
                .data           = &show_unhandled_signals,
@@ -2036,12 +2075,14 @@ int proc_dointvec_minmax(struct ctl_table *table, int write,
 
 static void validate_coredump_safety(void)
 {
+#ifdef CONFIG_COREDUMP
        if (suid_dumpable == SUID_DUMPABLE_SAFE &&
            core_pattern[0] != '/' && core_pattern[0] != '|') {
                printk(KERN_WARNING "Unsafe core_pattern used with "\
                        "suid_dumpable=2. Pipe handler or fully qualified "\
                        "core dump path required.\n");
        }
+#endif
 }
 
 static int proc_dointvec_minmax_coredump(struct ctl_table *table, int write,
@@ -2053,6 +2094,7 @@ static int proc_dointvec_minmax_coredump(struct ctl_table *table, int write,
        return error;
 }
 
+#ifdef CONFIG_COREDUMP
 static int proc_dostring_coredump(struct ctl_table *table, int write,
                  void __user *buffer, size_t *lenp, loff_t *ppos)
 {
@@ -2061,6 +2103,7 @@ static int proc_dostring_coredump(struct ctl_table *table, int write,
                validate_coredump_safety();
        return error;
 }
+#endif
 
 static int __do_proc_doulongvec_minmax(void *data, struct ctl_table *table, int write,
                                     void __user *buffer,