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new helper: signal_setup_done()

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usual "call force_sigsegv or signal_delivered" logics.  Takes
ksignal instead of separate siginfo/k_sigaction.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2012-11-07 15:11:25 -05:00
parent ca86b5dce2
commit 2ce5da1757
2 changed files with 10 additions and 0 deletions
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1
include/linux/signal.h
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@ -286,6 +286,7 @@ struct ksignal {
};
extern int get_signal_to_deliver(siginfo_t *info, struct k_sigaction *return_ka, struct pt_regs *regs, void *cookie);
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);

9
kernel/signal.c
View File

@ -2396,6 +2396,15 @@ void signal_delivered(int sig, siginfo_t *info, struct k_sigaction *ka,
tracehook_signal_handler(sig, info, ka, regs, stepping);
}
void signal_setup_done(int failed, struct ksignal *ksig, int stepping)
{
if (failed)
force_sigsegv(ksig->sig, current);
else
signal_delivered(ksig->sig, &ksig->info, &ksig->ka,
signal_pt_regs(), stepping);
}
/*
* It could be that complete_signal() picked us to notify about the
* group-wide signal. Other threads should be notified now to take