old sigsuspend variants in kernel/signal.c

conditional on OLD_SIGSUSPEND/OLD_SIGSUSPEND3, depending on which
variety of that fossil is needed.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 17 insertions, 0 deletions

diff --git a/kernel/signal.c b/kernel/signal.c
index 6cd3023cc66b..93fd4b83d866 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -3454,6 +3454,23 @@ COMPAT_SYSCALL_DEFINE2(rt_sigsuspend, compat_sigset_t __user *, unewset, compat_
 #endif
 #endif
 
+#ifdef CONFIG_OLD_SIGSUSPEND
+SYSCALL_DEFINE1(sigsuspend, old_sigset_t, mask)
+{
+        sigset_t blocked;
+        siginitset(&blocked, mask);
+        return sigsuspend(&blocked);
+}
+#endif
+#ifdef CONFIG_OLD_SIGSUSPEND3
+SYSCALL_DEFINE3(sigsuspend, int, unused1, int, unused2, old_sigset_t, mask)
+{
+        sigset_t blocked;
+        siginitset(&blocked, mask);
+        return sigsuspend(&blocked);
+}
+#endif
+
 __attribute__((weak)) const char *arch_vma_name(struct vm_area_struct *vma)
 {
         return NULL;