072b198a4a
Now that the bulk of the old nmi_watchdog is gone, remove all the stub variables and hooks associated with it. This touches lots of files mainly because of how the io_apic nmi_watchdog was implemented. Now that the io_apic nmi_watchdog is forever gone, remove all its fingers. Most of this code was not being exercised by virtue of nmi_watchdog != NMI_IO_APIC, so there shouldn't be anything to risky here. Signed-off-by: Don Zickus <dzickus@redhat.com> Cc: fweisbec@gmail.com Cc: gorcunov@openvz.org LKML-Reference: <1289578944-28564-3-git-send-email-dzickus@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
58 lines
1.3 KiB
C
58 lines
1.3 KiB
C
/*
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* linux/include/linux/nmi.h
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*/
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#ifndef LINUX_NMI_H
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#define LINUX_NMI_H
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#include <linux/sched.h>
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#include <asm/irq.h>
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/**
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* touch_nmi_watchdog - restart NMI watchdog timeout.
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*
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* If the architecture supports the NMI watchdog, touch_nmi_watchdog()
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* may be used to reset the timeout - for code which intentionally
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* disables interrupts for a long time. This call is stateless.
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*/
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#ifdef ARCH_HAS_NMI_WATCHDOG
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#include <asm/nmi.h>
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#endif
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#ifndef CONFIG_HARDLOCKUP_DETECTOR
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static inline void touch_nmi_watchdog(void)
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{
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touch_softlockup_watchdog();
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}
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#else
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extern void touch_nmi_watchdog(void);
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#endif
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/*
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* Create trigger_all_cpu_backtrace() out of the arch-provided
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* base function. Return whether such support was available,
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* to allow calling code to fall back to some other mechanism:
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*/
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#ifdef arch_trigger_all_cpu_backtrace
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static inline bool trigger_all_cpu_backtrace(void)
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{
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arch_trigger_all_cpu_backtrace();
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return true;
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}
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#else
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static inline bool trigger_all_cpu_backtrace(void)
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{
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return false;
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}
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#endif
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#ifdef CONFIG_LOCKUP_DETECTOR
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int hw_nmi_is_cpu_stuck(struct pt_regs *);
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u64 hw_nmi_get_sample_period(void);
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extern int watchdog_enabled;
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struct ctl_table;
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extern int proc_dowatchdog_enabled(struct ctl_table *, int ,
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void __user *, size_t *, loff_t *);
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#endif
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#endif
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