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softlockup: fix signedness 

fix softlockup tunables signedness.

mark tunables read-mostly.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Ingo Molnar 2008-01-25 21:08:34 +01:00
parent 9745512ce7
commit 90739081ef
3 changed files with 15 additions and 15 deletions
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4
include/linux/sched.h
View File

@ -269,10 +269,10 @@ extern void softlockup_tick(void);
extern void spawn_softlockup_task(void);
extern void touch_softlockup_watchdog(void);
extern void touch_all_softlockup_watchdogs(void);
extern int softlockup_thresh;
extern unsigned long softlockup_thresh;
extern unsigned long sysctl_hung_task_check_count;
extern unsigned long sysctl_hung_task_timeout_secs;
extern long sysctl_hung_task_warnings;
extern unsigned long sysctl_hung_task_warnings;
#else
static inline void softlockup_tick(void)
{

10
kernel/softlockup.c
View File

@ -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:

16
kernel/sysctl.c
View File

@ -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