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Diffstat (limited to 'arch/s390/kernel/signal.c')
-rw-r--r--arch/s390/kernel/signal.c61
1 files changed, 19 insertions, 42 deletions
diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c
index abbb3c3c7aab..9a40e1cc5ec3 100644
--- a/arch/s390/kernel/signal.c
+++ b/arch/s390/kernel/signal.c
@@ -57,17 +57,15 @@ typedef struct
*/
SYSCALL_DEFINE3(sigsuspend, int, history0, int, history1, old_sigset_t, mask)
{
- mask &= _BLOCKABLE;
- spin_lock_irq(&current->sighand->siglock);
- current->saved_sigmask = current->blocked;
- siginitset(&current->blocked, mask);
- recalc_sigpending();
- spin_unlock_irq(&current->sighand->siglock);
+ sigset_t blocked;
+ current->saved_sigmask = current->blocked;
+ mask &= _BLOCKABLE;
+ siginitset(&blocked, mask);
+ set_current_blocked(&blocked);
set_current_state(TASK_INTERRUPTIBLE);
schedule();
- set_thread_flag(TIF_RESTORE_SIGMASK);
-
+ set_restore_sigmask();
return -ERESTARTNOHAND;
}
@@ -172,18 +170,11 @@ SYSCALL_DEFINE0(sigreturn)
goto badframe;
if (__copy_from_user(&set.sig, &frame->sc.oldmask, _SIGMASK_COPY_SIZE))
goto badframe;
-
sigdelsetmask(&set, ~_BLOCKABLE);
- spin_lock_irq(&current->sighand->siglock);
- current->blocked = set;
- recalc_sigpending();
- spin_unlock_irq(&current->sighand->siglock);
-
+ set_current_blocked(&set);
if (restore_sigregs(regs, &frame->sregs))
goto badframe;
-
return regs->gprs[2];
-
badframe:
force_sig(SIGSEGV, current);
return 0;
@@ -199,21 +190,14 @@ SYSCALL_DEFINE0(rt_sigreturn)
goto badframe;
if (__copy_from_user(&set.sig, &frame->uc.uc_sigmask, sizeof(set)))
goto badframe;
-
sigdelsetmask(&set, ~_BLOCKABLE);
- spin_lock_irq(&current->sighand->siglock);
- current->blocked = set;
- recalc_sigpending();
- spin_unlock_irq(&current->sighand->siglock);
-
+ set_current_blocked(&set);
if (restore_sigregs(regs, &frame->uc.uc_mcontext))
goto badframe;
-
if (do_sigaltstack(&frame->uc.uc_stack, NULL,
regs->gprs[15]) == -EFAULT)
goto badframe;
return regs->gprs[2];
-
badframe:
force_sig(SIGSEGV, current);
return 0;
@@ -385,14 +369,11 @@ give_sigsegv:
return -EFAULT;
}
-/*
- * OK, we're invoking a handler
- */
-
-static int
-handle_signal(unsigned long sig, struct k_sigaction *ka,
- siginfo_t *info, sigset_t *oldset, struct pt_regs * regs)
+static int handle_signal(unsigned long sig, struct k_sigaction *ka,
+ siginfo_t *info, sigset_t *oldset,
+ struct pt_regs *regs)
{
+ sigset_t blocked;
int ret;
/* Set up the stack frame */
@@ -400,17 +381,13 @@ handle_signal(unsigned long sig, struct k_sigaction *ka,
ret = setup_rt_frame(sig, ka, info, oldset, regs);
else
ret = setup_frame(sig, ka, oldset, regs);
-
- if (ret == 0) {
- spin_lock_irq(&current->sighand->siglock);
- sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
- if (!(ka->sa.sa_flags & SA_NODEFER))
- sigaddset(&current->blocked,sig);
- recalc_sigpending();
- spin_unlock_irq(&current->sighand->siglock);
- }
-
- return ret;
+ if (ret)
+ return ret;
+ sigorsets(&blocked, &current->blocked, &ka->sa.sa_mask);
+ if (!(ka->sa.sa_flags & SA_NODEFER))
+ sigaddset(&blocked, sig);
+ set_current_blocked(&blocked);
+ return 0;
}
/*