These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / kernel / sysctl.c

diff --git a/kernel/kernel/sysctl.c b/kernel/kernel/sysctl.c
index c3eee4c..dc6858d 100644 (file)
--- a/kernel/kernel/sysctl.c
+++ b/kernel/kernel/sysctl.c
@@ -64,6 +64,7 @@
 #include <linux/binfmts.h>
 #include <linux/sched/sysctl.h>
 #include <linux/kexec.h>
+#include <linux/bpf.h>
 
 #include <asm/uaccess.h>
 #include <asm/processor.h>
@@ -349,15 +350,6 @@ static struct ctl_table kern_table[] = {
                .mode           = 0644,
                .proc_handler   = proc_dointvec,
        },
-       {
-               .procname       = "timer_migration",
-               .data           = &sysctl_timer_migration,
-               .maxlen         = sizeof(unsigned int),
-               .mode           = 0644,
-               .proc_handler   = proc_dointvec_minmax,
-               .extra1         = &zero,
-               .extra2         = &one,
-       },
 #endif /* CONFIG_SMP */
 #ifdef CONFIG_NUMA_BALANCING
        {
@@ -630,7 +622,7 @@ static struct ctl_table kern_table[] = {
                .proc_handler   = proc_dointvec,
        },
 #endif
-#ifdef CONFIG_KEXEC
+#ifdef CONFIG_KEXEC_CORE
        {
                .procname       = "kexec_load_disabled",
                .data           = &kexec_load_disabled,
@@ -880,6 +872,13 @@ static struct ctl_table kern_table[] = {
                .extra1         = &zero,
                .extra2         = &one,
        },
+       {
+               .procname       = "watchdog_cpumask",
+               .data           = &watchdog_cpumask_bits,
+               .maxlen         = NR_CPUS,
+               .mode           = 0644,
+               .proc_handler   = proc_watchdog_cpumask,
+       },
        {
                .procname       = "softlockup_panic",
                .data           = &softlockup_panic,
@@ -889,6 +888,17 @@ static struct ctl_table kern_table[] = {
                .extra1         = &zero,
                .extra2         = &one,
        },
+#ifdef CONFIG_HARDLOCKUP_DETECTOR
+       {
+               .procname       = "hardlockup_panic",
+               .data           = &hardlockup_panic,
+               .maxlen         = sizeof(int),
+               .mode           = 0644,
+               .proc_handler   = proc_dointvec_minmax,
+               .extra1         = &zero,
+               .extra2         = &one,
+       },
+#endif
 #ifdef CONFIG_SMP
        {
                .procname       = "softlockup_all_cpu_backtrace",
@@ -899,6 +909,15 @@ static struct ctl_table kern_table[] = {
                .extra1         = &zero,
                .extra2         = &one,
        },
+       {
+               .procname       = "hardlockup_all_cpu_backtrace",
+               .data           = &sysctl_hardlockup_all_cpu_backtrace,
+               .maxlen         = sizeof(int),
+               .mode           = 0644,
+               .proc_handler   = proc_dointvec_minmax,
+               .extra1         = &zero,
+               .extra2         = &one,
+       },
 #endif /* CONFIG_SMP */
 #endif
 #if defined(CONFIG_X86_LOCAL_APIC) && defined(CONFIG_X86)
@@ -1132,6 +1151,27 @@ static struct ctl_table kern_table[] = {
                .extra1         = &zero,
                .extra2         = &one,
        },
+#if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ_COMMON)
+       {
+               .procname       = "timer_migration",
+               .data           = &sysctl_timer_migration,
+               .maxlen         = sizeof(unsigned int),
+               .mode           = 0644,
+               .proc_handler   = timer_migration_handler,
+       },
+#endif
+#ifdef CONFIG_BPF_SYSCALL
+       {
+               .procname       = "unprivileged_bpf_disabled",
+               .data           = &sysctl_unprivileged_bpf_disabled,
+               .maxlen         = sizeof(sysctl_unprivileged_bpf_disabled),
+               .mode           = 0644,
+               /* only handle a transition from default "0" to "1" */
+               .proc_handler   = proc_dointvec_minmax,
+               .extra1         = &one,
+               .extra2         = &one,
+       },
+#endif
        { }
 };
 
@@ -1988,7 +2028,7 @@ static int do_proc_dointvec_conv(bool *negp, unsigned long *lvalp,
                int val = *valp;
                if (val < 0) {
                        *negp = true;
-                       *lvalp = (unsigned long)-val;
+                       *lvalp = -(unsigned long)val;
                } else {
                        *negp = false;
                        *lvalp = (unsigned long)val;
@@ -2194,7 +2234,7 @@ static int do_proc_dointvec_minmax_conv(bool *negp, unsigned long *lvalp,
                int val = *valp;
                if (val < 0) {
                        *negp = true;
-                       *lvalp = (unsigned long)-val;
+                       *lvalp = -(unsigned long)val;
                } else {
                        *negp = false;
                        *lvalp = (unsigned long)val;
@@ -2429,7 +2469,7 @@ static int do_proc_dointvec_jiffies_conv(bool *negp, unsigned long *lvalp,
                unsigned long lval;
                if (val < 0) {
                        *negp = true;
-                       lval = (unsigned long)-val;
+                       lval = -(unsigned long)val;
                } else {
                        *negp = false;
                        lval = (unsigned long)val;
@@ -2452,7 +2492,7 @@ static int do_proc_dointvec_userhz_jiffies_conv(bool *negp, unsigned long *lvalp
                unsigned long lval;
                if (val < 0) {
                        *negp = true;
-                       lval = (unsigned long)-val;
+                       lval = -(unsigned long)val;
                } else {
                        *negp = false;
                        lval = (unsigned long)val;
@@ -2477,7 +2517,7 @@ static int do_proc_dointvec_ms_jiffies_conv(bool *negp, unsigned long *lvalp,
                unsigned long lval;
                if (val < 0) {
                        *negp = true;
-                       lval = (unsigned long)-val;
+                       lval = -(unsigned long)val;
                } else {
                        *negp = false;
                        lval = (unsigned long)val;