uml: remove init_irq_signals

init_irq_signals doesn't need to be called from the context of a new process.
It initializes handlers, which are useless in process context.  With that call
gone, init_irq_signals has only one caller, so it can be inlined into
init_new_thread_signals.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 4 insertions, 1 deletions

diff --git a/arch/um/os-Linux/process.c b/arch/um/os-Linux/process.c
index bda5c3150d6c..abf6beae3df1 100644
--- a/arch/um/os-Linux/process.c
+++ b/arch/um/os-Linux/process.c
@@ -249,7 +249,10 @@ void init_new_thread_signals(void)
                     SIGUSR1, SIGIO, SIGWINCH, SIGVTALRM, -1);
         signal(SIGHUP, SIG_IGN);
 
-        init_irq_signals(1);
+        set_handler(SIGIO, (__sighandler_t) sig_handler,
+                    SA_ONSTACK | SA_RESTART, SIGUSR1, SIGIO, SIGWINCH, SIGALRM,
+                    SIGVTALRM, -1);
+        signal(SIGWINCH, SIG_IGN);
 }
 
 int run_kernel_thread(int (*fn)(void *), void *arg, jmp_buf **jmp_ptr)