kernel/hung_task.c: allow to set checking interval separately from timeout

[linux-2.6-microblaze.git] / kernel / sysctl.c

diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index f22f76b..dbdcb66 100644 (file)
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -145,7 +145,10 @@ static int minolduid;
 static int ngroups_max = NGROUPS_MAX;
 static const int cap_last_cap = CAP_LAST_CAP;
 
-/*this is needed for proc_doulongvec_minmax of sysctl_hung_task_timeout_secs */
+/*
+ * This is needed for proc_doulongvec_minmax of sysctl_hung_task_timeout_secs
+ * and hung_task_check_interval_secs
+ */
 #ifdef CONFIG_DETECT_HUNG_TASK
 static unsigned long hung_task_timeout_max = (LONG_MAX/HZ);
 #endif
@@ -1090,6 +1093,14 @@ static struct ctl_table kern_table[] = {
                .proc_handler   = proc_dohung_task_timeout_secs,
                .extra2         = &hung_task_timeout_max,
        },
+       {
+               .procname       = "hung_task_check_interval_secs",
+               .data           = &sysctl_hung_task_check_interval_secs,
+               .maxlen         = sizeof(unsigned long),
+               .mode           = 0644,
+               .proc_handler   = proc_dohung_task_timeout_secs,
+               .extra2         = &hung_task_timeout_max,
+       },
        {
                .procname       = "hung_task_warnings",
                .data           = &sysctl_hung_task_warnings,