return err;
if (write) {
+ int i;
+
+ /*
+ * If we are relying on panic_on_taint not producing
+ * false positives due to userspace input, bail out
+ * before setting the requested taint flags.
+ */
+ if (panic_on_taint_nousertaint && (tmptaint & panic_on_taint))
+ return -EINVAL;
+
/*
* Poor man's atomic or. Not worth adding a primitive
* to everyone's atomic.h for this
*/
- int i;
- for (i = 0; i < BITS_PER_LONG && tmptaint >> i; i++) {
- if ((tmptaint >> i) & 1)
+ for (i = 0; i < TAINT_FLAGS_COUNT; i++)
+ if ((1UL << i) & tmptaint)
add_taint(i, LOCKDEP_STILL_OK);
- }
}
return err;
.proc_handler = proc_dointvec,
},
#endif
+#ifdef CONFIG_SMP
+ {
+ .procname = "oops_all_cpu_backtrace",
+ .data = &sysctl_oops_all_cpu_backtrace,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = SYSCTL_ZERO,
+ .extra2 = SYSCTL_ONE,
+ },
+#endif /* CONFIG_SMP */
{
.procname = "pid_max",
.data = &pid_max,
},
#endif
#ifdef CONFIG_DETECT_HUNG_TASK
+#ifdef CONFIG_SMP
+ {
+ .procname = "hung_task_all_cpu_backtrace",
+ .data = &sysctl_hung_task_all_cpu_backtrace,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = SYSCTL_ZERO,
+ .extra2 = SYSCTL_ONE,
+ },
+#endif /* CONFIG_SMP */
{
.procname = "hung_task_panic",
.data = &sysctl_hung_task_panic,