X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Flinux%2Fsignal.h;h=70739f51a09f5fe963c89c8bea9e8c1a3a97e36d;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=2407dd8888d5d611763193ae2e6c411f4ce6bd37;hpb=9bf4aaab3e101692164d49b7ca357651eb691cb6;p=linux-2.6.git

diff --git a/include/linux/signal.h b/include/linux/signal.h
index 2407dd888..70739f51a 100644
--- a/include/linux/signal.h
+++ b/include/linux/signal.h
@@ -8,7 +8,31 @@
 
 #ifdef __KERNEL__
 
-#define MAX_SIGPENDING	1024
+/*
+ * These values of sa_flags are used only by the kernel as part of the
+ * irq handling routines.
+ *
+ * SA_INTERRUPT is also used by the irq handling routines.
+ * SA_SHIRQ is for shared interrupt support on PCI and EISA.
+ * SA_PROBEIRQ is set by callers when they expect sharing mismatches to occur
+ */
+#define SA_SAMPLE_RANDOM	SA_RESTART
+#define SA_SHIRQ		0x04000000
+#define SA_PROBEIRQ		0x08000000
+
+/*
+ * As above, these correspond to the IORESOURCE_IRQ_* defines in
+ * linux/ioport.h to select the interrupt line behaviour.  When
+ * requesting an interrupt without specifying a SA_TRIGGER, the
+ * setting should be assumed to be "as already configured", which
+ * may be as per machine or firmware initialisation.
+ */
+#define SA_TRIGGER_LOW		0x00000008
+#define SA_TRIGGER_HIGH		0x00000004
+#define SA_TRIGGER_FALLING	0x00000002
+#define SA_TRIGGER_RISING	0x00000001
+#define SA_TRIGGER_MASK	(SA_TRIGGER_HIGH|SA_TRIGGER_LOW|\
+				 SA_TRIGGER_RISING|SA_TRIGGER_FALLING)
 
 /*
  * Real Time signals may be queued.
@@ -16,7 +40,6 @@
 
 struct sigqueue {
 	struct list_head list;
-	spinlock_t *lock;
 	int flags;
 	siginfo_t info;
 	struct user_struct *user;
@@ -73,6 +96,23 @@ static inline int sigfindinword(unsigned long word)
 
 #endif /* __HAVE_ARCH_SIG_BITOPS */
 
+static inline int sigisemptyset(sigset_t *set)
+{
+	extern void _NSIG_WORDS_is_unsupported_size(void);
+	switch (_NSIG_WORDS) {
+	case 4:
+		return (set->sig[3] | set->sig[2] |
+			set->sig[1] | set->sig[0]) == 0;
+	case 2:
+		return (set->sig[1] | set->sig[0]) == 0;
+	case 1:
+		return set->sig[0] == 0;
+	default:
+		_NSIG_WORDS_is_unsupported_size();
+		return 0;
+	}
+}
+
 #define sigmask(sig)	(1UL << ((sig) - 1))
 
 #ifndef __HAVE_ARCH_SIG_SETOPS
@@ -211,14 +251,21 @@ static inline void init_sigpending(struct sigpending *sig)
 	INIT_LIST_HEAD(&sig->list);
 }
 
+extern void flush_sigqueue(struct sigpending *queue);
+
+/* Test if 'sig' is valid signal. Use this instead of testing _NSIG directly */
+static inline int valid_signal(unsigned long sig)
+{
+	return sig <= _NSIG ? 1 : 0;
+}
+
 extern int group_send_sig_info(int sig, struct siginfo *info, struct task_struct *p);
+extern int __group_send_sig_info(int, struct siginfo *, struct task_struct *);
 extern long do_sigpending(void __user *, unsigned long);
 extern int sigprocmask(int, sigset_t *, sigset_t *);
 
-#ifndef HAVE_ARCH_GET_SIGNAL_TO_DELIVER
 struct pt_regs;
-extern int get_signal_to_deliver(siginfo_t *info, struct pt_regs *regs, void *cookie);
-#endif
+extern int get_signal_to_deliver(siginfo_t *info, struct k_sigaction *return_ka, struct pt_regs *regs, void *cookie);
 
 #endif /* __KERNEL__ */