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authorIngo Molnar <mingo@elte.hu>2008-01-25 21:08:34 +0100
committerIngo Molnar <mingo@elte.hu>2008-01-25 21:08:34 +0100
commit90739081ef8d5495d50abba9c5d333be9acd872a (patch)
tree37dc5c626940a4bad6d9ffad81b7be12dc44f054 /kernel
parentsched: latencytop support (diff)
downloadlinux-dev-90739081ef8d5495d50abba9c5d333be9acd872a.tar.xz
linux-dev-90739081ef8d5495d50abba9c5d333be9acd872a.zip
softlockup: fix signedness
fix softlockup tunables signedness. mark tunables read-mostly. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/softlockup.c10
-rw-r--r--kernel/sysctl.c16
2 files changed, 13 insertions, 13 deletions
diff --git a/kernel/softlockup.c b/kernel/softlockup.c
index 02f0ad534441..c1d76552446e 100644
--- a/kernel/softlockup.c
+++ b/kernel/softlockup.c
@@ -24,8 +24,8 @@ static DEFINE_PER_CPU(unsigned long, touch_timestamp);
static DEFINE_PER_CPU(unsigned long, print_timestamp);
static DEFINE_PER_CPU(struct task_struct *, watchdog_task);
-static int did_panic;
-int softlockup_thresh = 60;
+static int __read_mostly did_panic;
+unsigned long __read_mostly softlockup_thresh = 60;
static int
softlock_panic(struct notifier_block *this, unsigned long event, void *ptr)
@@ -121,14 +121,14 @@ void softlockup_tick(void)
/*
* Have a reasonable limit on the number of tasks checked:
*/
-unsigned long sysctl_hung_task_check_count = 1024;
+unsigned long __read_mostly sysctl_hung_task_check_count = 1024;
/*
* Zero means infinite timeout - no checking done:
*/
-unsigned long sysctl_hung_task_timeout_secs = 120;
+unsigned long __read_mostly sysctl_hung_task_timeout_secs = 120;
-long sysctl_hung_task_warnings = 10;
+unsigned long __read_mostly sysctl_hung_task_warnings = 10;
/*
* Only do the hung-tasks check on one CPU:
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 5418ef61e16e..8e96558cb8f3 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -772,9 +772,9 @@ static struct ctl_table kern_table[] = {
.ctl_name = CTL_UNNUMBERED,
.procname = "softlockup_thresh",
.data = &softlockup_thresh,
- .maxlen = sizeof(int),
+ .maxlen = sizeof(unsigned long),
.mode = 0644,
- .proc_handler = &proc_dointvec_minmax,
+ .proc_handler = &proc_doulongvec_minmax,
.strategy = &sysctl_intvec,
.extra1 = &one,
.extra2 = &sixty,
@@ -783,27 +783,27 @@ static struct ctl_table kern_table[] = {
.ctl_name = CTL_UNNUMBERED,
.procname = "hung_task_check_count",
.data = &sysctl_hung_task_check_count,
- .maxlen = sizeof(int),
+ .maxlen = sizeof(unsigned long),
.mode = 0644,
- .proc_handler = &proc_dointvec_minmax,
+ .proc_handler = &proc_doulongvec_minmax,
.strategy = &sysctl_intvec,
},
{
.ctl_name = CTL_UNNUMBERED,
.procname = "hung_task_timeout_secs",
.data = &sysctl_hung_task_timeout_secs,
- .maxlen = sizeof(int),
+ .maxlen = sizeof(unsigned long),
.mode = 0644,
- .proc_handler = &proc_dointvec_minmax,
+ .proc_handler = &proc_doulongvec_minmax,
.strategy = &sysctl_intvec,
},
{
.ctl_name = CTL_UNNUMBERED,
.procname = "hung_task_warnings",
.data = &sysctl_hung_task_warnings,
- .maxlen = sizeof(int),
+ .maxlen = sizeof(unsigned long),
.mode = 0644,
- .proc_handler = &proc_dointvec_minmax,
+ .proc_handler = &proc_doulongvec_minmax,
.strategy = &sysctl_intvec,
},
#endif