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authorOleg Nesterov <oleg@redhat.com>2011-04-27 21:44:14 +0200
committerOleg Nesterov <oleg@redhat.com>2011-04-28 13:01:38 +0200
commit943df1485a8ff0e600729e082e568ece04d4de9e (patch)
treed2d4b7b41f163e011cb7a373376c9ae87e5941be /include/linux/signal.h
parentfe0faa005d43bc44c357631d51c273806086caa4 (diff)
signal: introduce do_sigtimedwait() to factor out compat/native code
Factor out the common code in sys_rt_sigtimedwait/compat_sys_rt_sigtimedwait to the new helper, do_sigtimedwait(). Add the comment to document the extra tick we add to timespec_to_jiffies(ts), thanks to Linus who explained this to me. Perhaps it would be better to move compat_sys_rt_sigtimedwait() into signal.c under CONFIG_COMPAT, then we can make do_sigtimedwait() static. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Tejun Heo <tj@kernel.org> Reviewed-by: Matt Fleming <matt.fleming@linux.intel.com>
Diffstat (limited to 'include/linux/signal.h')
-rw-r--r--include/linux/signal.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/signal.h b/include/linux/signal.h
index ba009c16727..782546d661b 100644
--- a/include/linux/signal.h
+++ b/include/linux/signal.h
@@ -242,6 +242,8 @@ extern int __group_send_sig_info(int, struct siginfo *, struct task_struct *);
extern long do_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig,
siginfo_t *info);
extern long do_sigpending(void __user *, unsigned long);
+extern int do_sigtimedwait(const sigset_t *, siginfo_t *,
+ const struct timespec *);
extern int sigprocmask(int, sigset_t *, sigset_t *);
extern void set_current_blocked(const sigset_t *);
extern int show_unhandled_signals;