33464e3b57
And here's a port of the powerpc patch to get rid of the notifier chain completely to s390. It's ontop of Martins patch as that one is in mainline already. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
72 lines
1.4 KiB
C
72 lines
1.4 KiB
C
#ifndef _S390_KDEBUG_H
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#define _S390_KDEBUG_H
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/*
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* Feb 2006 Ported to s390 <grundym@us.ibm.com>
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*/
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#include <linux/notifier.h>
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struct pt_regs;
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struct die_args {
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struct pt_regs *regs;
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const char *str;
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long err;
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int trapnr;
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int signr;
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};
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/* Note - you should never unregister because that can race with NMIs.
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* If you really want to do it first unregister - then synchronize_sched
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* - then free.
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*/
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extern int register_die_notifier(struct notifier_block *);
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extern int unregister_die_notifier(struct notifier_block *);
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/*
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* These are only here because kprobes.c wants them to implement a
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* blatant layering violation. Will hopefully go away soon once all
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* architectures are updated.
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*/
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static inline int register_page_fault_notifier(struct notifier_block *nb)
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{
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return 0;
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}
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static inline int unregister_page_fault_notifier(struct notifier_block *nb)
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{
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return 0;
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}
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extern struct atomic_notifier_head s390die_chain;
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enum die_val {
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DIE_OOPS = 1,
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DIE_BPT,
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DIE_SSTEP,
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DIE_PANIC,
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DIE_NMI,
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DIE_DIE,
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DIE_NMIWATCHDOG,
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DIE_KERNELDEBUG,
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DIE_TRAP,
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DIE_GPF,
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DIE_CALL,
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DIE_NMI_IPI,
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};
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static inline int notify_die(enum die_val val, const char *str,
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struct pt_regs *regs, long err, int trap, int sig)
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{
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struct die_args args = {
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.regs = regs,
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.str = str,
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.err = err,
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.trapnr = trap,
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.signr = sig
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};
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return atomic_notifier_call_chain(&s390die_chain, val, &args);
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}
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extern void die(const char *, struct pt_regs *, long);
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#endif
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