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new helper: sigmask_to_save()

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replace boilerplate "should we use ->saved_sigmask or ->blocked?"
with calls of obvious inlined helper...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2012-05-02 09:59:21 -04:00
parent 51a7b448d4
commit b7f9a11a6c
31 changed files with 92 additions and 250 deletions
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20
arch/avr32/kernel/signal.c
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@@ -224,14 +224,14 @@ static inline void setup_syscall_restart(struct pt_regs *regs)
static inline void
handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
sigset_t *oldset, struct pt_regs *regs, int syscall)
struct pt_regs *regs, int syscall)
{
int ret;
/*
* Set up the stack frame
*/
ret = setup_rt_frame(sig, ka, info, oldset, regs);
ret = setup_rt_frame(sig, ka, info, sigmask_to_save(), regs);
/*
* Check that the resulting registers are sane
@@ -255,7 +255,7 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
* doesn't want to handle. Thus you cannot kill init even with a
* SIGKILL even by mistake.
*/
int do_signal(struct pt_regs *regs, sigset_t *oldset, int syscall)
static void do_signal(struct pt_regs *regs, int syscall)
{
siginfo_t info;
int signr;
@@ -267,12 +267,7 @@ int do_signal(struct pt_regs *regs, sigset_t *oldset, int syscall)
* without doing anything if so.
*/
if (!user_mode(regs))
return 0;
if (test_thread_flag(TIF_RESTORE_SIGMASK))
oldset = &current->saved_sigmask;
else if (!oldset)
oldset = &current->blocked;
return;
signr = get_signal_to_deliver(&info, &ka, regs, NULL);
if (syscall) {
@@ -298,11 +293,10 @@ int do_signal(struct pt_regs *regs, sigset_t *oldset, int syscall)
if (signr == 0) {
/* No signal to deliver -- put the saved sigmask back */
restore_saved_sigmask();
return 0;
return;
}
handle_signal(signr, &ka, &info, oldset, regs, syscall);
return 1;
handle_signal(signr, &ka, &info, regs, syscall);
}
asmlinkage void do_notify_resume(struct pt_regs *regs, struct thread_info *ti)
@@ -313,7 +307,7 @@ asmlinkage void do_notify_resume(struct pt_regs *regs, struct thread_info *ti)
syscall = 1;
if (ti->flags & (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK))
do_signal(regs, &current->blocked, syscall);
do_signal(regs, syscall);
if (ti->flags & _TIF_NOTIFY_RESUME) {
clear_thread_flag(TIF_NOTIFY_RESUME);