um: simplify set_handler()

For one thing, we always block the same signals (IRQ ones - IO, WINCH, VTALRM),
so there's no need to pass sa_mask elements in arguments.  For another, the
flags depend only on whether it's an IRQ signal or not (we add SA_RESTART
for them).

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>

1 files changed, 1 insertions, 2 deletions

diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c
index 20b34dcb0906..31743f1d1195 100644
--- a/arch/um/os-Linux/skas/process.c
+++ b/arch/um/os-Linux/skas/process.c
@@ -659,8 +659,7 @@ int start_idle_thread(void *stack, jmp_buf *switch_buf)
 {
         int n;
 
-        set_handler(SIGWINCH, (__sighandler_t) sig_handler,
-                    SA_ONSTACK | SA_RESTART, SIGIO, SIGVTALRM, -1);
+        set_handler(SIGWINCH, (__sighandler_t) sig_handler);
 
         /*
          * Can't use UML_SETJMP or UML_LONGJMP here because they save