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To modify Ixia port numbers and IP in pod.yaml
[kvmfornfv.git] / kernel / kernel / sysctl.c
diff --git a/kernel/kernel/sysctl.c b/kernel/kernel/sysctl.c
index c3eee4c..2f0d157 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
        { }
 };
 
@@ -1695,6 +1735,20 @@ static struct ctl_table fs_table[] = {
                .proc_handler   = &pipe_proc_fn,
                .extra1         = &pipe_min_size,
        },
+       {
+               .procname       = "pipe-user-pages-hard",
+               .data           = &pipe_user_pages_hard,
+               .maxlen         = sizeof(pipe_user_pages_hard),
+               .mode           = 0644,
+               .proc_handler   = proc_doulongvec_minmax,
+       },
+       {
+               .procname       = "pipe-user-pages-soft",
+               .data           = &pipe_user_pages_soft,
+               .maxlen         = sizeof(pipe_user_pages_soft),
+               .mode           = 0644,
+               .proc_handler   = proc_doulongvec_minmax,
+       },
        { }
 };
 
@@ -1988,7 +2042,7 @@ 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;
@@ -1997,6 +2051,21 @@ static int do_proc_dointvec_conv(bool *negp, unsigned long *lvalp,
        return 0;
 }
 
+static int do_proc_douintvec_conv(bool *negp, unsigned long *lvalp,
+                                int *valp,
+                                int write, void *data)
+{
+       if (write) {
+               if (*negp)
+                       return -EINVAL;
+               *valp = *lvalp;
+       } else {
+               unsigned int val = *valp;
+               *lvalp = (unsigned long)val;
+       }
+       return 0;
+}
+
 static const char proc_wspace_sep[] = { ' ', '\t', '\n' };
 
 static int __do_proc_dointvec(void *tbl_data, struct ctl_table *table,
@@ -2124,8 +2193,27 @@ static int do_proc_dointvec(struct ctl_table *table, int write,
 int proc_dointvec(struct ctl_table *table, int write,
                     void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-    return do_proc_dointvec(table,write,buffer,lenp,ppos,
-                           NULL,NULL);
+       return do_proc_dointvec(table, write, buffer, lenp, ppos, NULL, NULL);
+}
+
+/**
+ * proc_douintvec - read a vector of unsigned integers
+ * @table: the sysctl table
+ * @write: %TRUE if this is a write to the sysctl file
+ * @buffer: the user buffer
+ * @lenp: the size of the user buffer
+ * @ppos: file position
+ *
+ * Reads/writes up to table->maxlen/sizeof(unsigned int) unsigned integer
+ * values from/to the user buffer, treated as an ASCII string.
+ *
+ * Returns 0 on success.
+ */
+int proc_douintvec(struct ctl_table *table, int write,
+                    void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+       return do_proc_dointvec(table, write, buffer, lenp, ppos,
+                               do_proc_douintvec_conv, NULL);
 }
 
 /*
@@ -2194,7 +2282,7 @@ 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;
@@ -2326,6 +2414,7 @@ static int __do_proc_doulongvec_minmax(void *data, struct ctl_table *table, int
                                break;
                        if (neg)
                                continue;
+                       val = convmul * val / convdiv;
                        if ((min && val < *min) || (max && val > *max))
                                continue;
                        *i = val;
@@ -2429,7 +2518,7 @@ 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 +2541,7 @@ 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 +2566,7 @@ 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;
@@ -2738,6 +2827,12 @@ int proc_dointvec(struct ctl_table *table, int write,
        return -ENOSYS;
 }
 
+int proc_douintvec(struct ctl_table *table, int write,
+                 void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+       return -ENOSYS;
+}
+
 int proc_dointvec_minmax(struct ctl_table *table, int write,
                    void __user *buffer, size_t *lenp, loff_t *ppos)
 {
@@ -2783,6 +2878,7 @@ int proc_doulongvec_ms_jiffies_minmax(struct ctl_table *table, int write,
  * exception granted :-)
  */
 EXPORT_SYMBOL(proc_dointvec);
+EXPORT_SYMBOL(proc_douintvec);
 EXPORT_SYMBOL(proc_dointvec_jiffies);
 EXPORT_SYMBOL(proc_dointvec_minmax);
 EXPORT_SYMBOL(proc_dointvec_userhz_jiffies);