proc_watchdog_common

Name:mmon function for watchdog, nmi_watchdog and soft_watchdog parameter* caller | table->data points to | 'which'* -------------------|----------------------------|--------------------------* proc_watchdog | watchdog_user_enabled | NMI_WATCHDOG_ENABLED |* |

Proto:static int proc_watchdog_common(int which, struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos)

Type:int

Parameter:

Type	Parameter	Name
int	which
struct ctl_table *	table
int	write
void __user *	buffer
size_t *	lenp
loff_t *	ppos

685

687

mutex_lock( & watchdog_mutex)

689

If Not write Then

694

param = (watchdog_enabled & which) != 0

695

err = read a vector of integers with min/max values

696

Else

697

old = READ_ONCE( * param)

698

err = read a vector of integers with min/max values

699

If Not err && old != READ_ONCE( * param) Then Propagate any changes to the watchdog threads

702

mutex_unlock - release the mutex*@lock: the mutex to be released* Unlock a mutex that has been locked by this task previously.* This function must not be used in interrupt context. Unlocking* of a not locked mutex is not allowed.

703

Return err

**Caller**
Name	Describe
proc_watchdog	/proc/sys/kernel/watchdog
proc_nmi_watchdog	/proc/sys/kernel/nmi_watchdog
proc_soft_watchdog	/proc/sys/kernel/soft_watchdog

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