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Diffstat (limited to 'arch/um/kernel/signal.c')
-rw-r--r--arch/um/kernel/signal.c37
1 files changed, 7 insertions, 30 deletions
diff --git a/arch/um/kernel/signal.c b/arch/um/kernel/signal.c
index 292e706016c5..7362d58efc29 100644
--- a/arch/um/kernel/signal.c
+++ b/arch/um/kernel/signal.c
@@ -15,17 +15,13 @@
EXPORT_SYMBOL(block_signals);
EXPORT_SYMBOL(unblock_signals);
-#define _S(nr) (1<<((nr)-1))
-
-#define _BLOCKABLE (~(_S(SIGKILL) | _S(SIGSTOP)))
-
/*
* OK, we're invoking a handler
*/
-static int handle_signal(struct pt_regs *regs, unsigned long signr,
- struct k_sigaction *ka, siginfo_t *info,
- sigset_t *oldset)
+static void handle_signal(struct pt_regs *regs, unsigned long signr,
+ struct k_sigaction *ka, siginfo_t *info)
{
+ sigset_t *oldset = sigmask_to_save();
unsigned long sp;
int err;
@@ -65,9 +61,7 @@ static int handle_signal(struct pt_regs *regs, unsigned long signr,
if (err)
force_sigsegv(signr, current);
else
- block_sigmask(ka, signr);
-
- return err;
+ signal_delivered(signr, info, ka, regs, 0);
}
static int kern_do_signal(struct pt_regs *regs)
@@ -77,24 +71,9 @@ static int kern_do_signal(struct pt_regs *regs)
int sig, handled_sig = 0;
while ((sig = get_signal_to_deliver(&info, &ka_copy, regs, NULL)) > 0) {
- sigset_t *oldset;
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- oldset = &current->saved_sigmask;
- else
- oldset = &current->blocked;
handled_sig = 1;
/* Whee! Actually deliver the signal. */
- if (!handle_signal(regs, sig, &ka_copy, &info, oldset)) {
- /*
- * a signal was successfully delivered; the saved
- * sigmask will have been stored in the signal frame,
- * and will be restored by sigreturn, so we can simply
- * clear the TIF_RESTORE_SIGMASK flag
- */
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- clear_thread_flag(TIF_RESTORE_SIGMASK);
- break;
- }
+ handle_signal(regs, sig, &ka_copy, &info);
}
/* Did we come from a system call? */
@@ -130,10 +109,8 @@ static int kern_do_signal(struct pt_regs *regs)
* if there's no signal to deliver, we just put the saved sigmask
* back
*/
- if (!handled_sig && test_thread_flag(TIF_RESTORE_SIGMASK)) {
- clear_thread_flag(TIF_RESTORE_SIGMASK);
- sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
- }
+ if (!handled_sig)
+ restore_saved_sigmask();
return handled_sig;
}