avr32: Use block_sigmask()

Use the new helper function block_sigmask() which centralises the code
for updating current->blocked after successfully delivering a signal
and reduces the amount of duplicate code across architectures.

In the past some architectures got this code wrong, so using this
helper function should stop that from happening again.

Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Cc: Havard Skinnemoen <hskinnemoen@gmail.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>

diff --git a/arch/avr32/kernel/signal.c b/arch/avr32/kernel/signal.c
index 06f4293f85d8a93b773a0cc66641d4a9b3e59335..feeb77bd81c7028c378f3914124c4dd108f1b4db 100644 (file)
--- a/arch/avr32/kernel/signal.c
+++ b/arch/avr32/kernel/signal.c
@@ -223,7 +223,6 @@ static inline void
 handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
              sigset_t *oldset, struct pt_regs *regs, int syscall)
 {
-       sigset_t blocked;
        int ret;
 
        /*
@@ -244,10 +243,7 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
        /*
         * Block the signal if we were successful.
         */
-       sigorsets(&blocked, &current->blocked, &ka->sa.sa_mask);
-       if (!(ka->sa.sa_flags & SA_NODEFER))
-               sigaddset(&blocked, sig);
-       set_current_blocked(&blocked);
+       block_sigmask(ka, sig);
 }
 
 /*