diff options
| author | H. Peter Anvin <hpa@linux.intel.com> | 2014-06-18 15:26:19 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2014-06-18 15:26:19 -0700 |
| commit | 03ab3da3b215bac4ebb093c808d54596e03e3225 (patch) | |
| tree | a42534bb7f314b561b362ad0b5af7eff8dbb9726 /include/linux/signal.h | |
| parent | 6229ad278ca74acdbc8bd3a3d469322a3de91039 (diff) | |
| parent | 7171511eaec5bf23fb06078f59784a3a0626b38f (diff) | |
Merge tag 'v3.16-rc1' into x86/cpufeature
Linux 3.16-rc1
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'include/linux/signal.h')
| -rw-r--r-- | include/linux/signal.h | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/include/linux/signal.h b/include/linux/signal.h index 2ac423bdb676..c9e65360c49a 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) @@ -289,6 +284,22 @@ extern int get_signal_to_deliver(siginfo_t *info, struct k_sigaction *return_ka, 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); + +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); +} /* * Eventually that'll replace get_signal_to_deliver(); macro for now, |