diff options
Diffstat (limited to 'include/linux/signal.h')
| -rw-r--r-- | include/linux/signal.h | 34 |
1 files changed, 16 insertions, 18 deletions
diff --git a/include/linux/signal.h b/include/linux/signal.h index 2ac423bdb676..750196fcc0a5 100644 --- a/include/linux/signal.h +++ b/include/linux/signal.h @@ -63,11 +63,6 @@ static inline int sigismember(sigset_t *set, int _sig) return 1 & (set->sig[sig / _NSIG_BPW] >> (sig % _NSIG_BPW)); } -static inline int sigfindinword(unsigned long word) -{ - return ffz(~word); -} - #endif /* __HAVE_ARCH_SIG_BITOPS */ static inline int sigisemptyset(sigset_t *set) @@ -285,22 +280,25 @@ struct ksignal { int sig; }; -extern int get_signal_to_deliver(siginfo_t *info, struct k_sigaction *return_ka, struct pt_regs *regs, void *cookie); +extern int get_signal(struct ksignal *ksig); extern void signal_setup_done(int failed, struct ksignal *ksig, int stepping); -extern void signal_delivered(int sig, siginfo_t *info, struct k_sigaction *ka, struct pt_regs *regs, int stepping); extern void exit_signals(struct task_struct *tsk); +extern void kernel_sigaction(int, __sighandler_t); -/* - * Eventually that'll replace get_signal_to_deliver(); macro for now, - * to avoid nastiness with include order. - */ -#define get_signal(ksig) \ -({ \ - struct ksignal *p = (ksig); \ - p->sig = get_signal_to_deliver(&p->info, &p->ka, \ - signal_pt_regs(), NULL);\ - p->sig > 0; \ -}) +static inline void allow_signal(int sig) +{ + /* + * Kernel threads handle their own signals. Let the signal code + * know it'll be handled, so that they don't get converted to + * SIGKILL or just silently dropped. + */ + kernel_sigaction(sig, (__force __sighandler_t)2); +} + +static inline void disallow_signal(int sig) +{ + kernel_sigaction(sig, SIG_IGN); +} extern struct kmem_cache *sighand_cachep; |