diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2012-12-23 03:36:41 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2013-02-03 18:16:11 -0500 |
| commit | e214125aa8c0546b24dabf6f47b28c5e20133d1d (patch) | |
| tree | 64405963bd20f04e42b411f115fda7530a906d6e /arch/s390/kernel/signal.c | |
| parent | 0aa0203fb43f04714004b2c4ad33b858e240555d (diff) | |
s390: switch to generic sigaltstack
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/s390/kernel/signal.c')
| -rw-r--r-- | arch/s390/kernel/signal.c | 15 |
1 files changed, 2 insertions, 13 deletions
diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c index c3ff70a7b247..fda41480b0bd 100644 --- a/arch/s390/kernel/signal.c +++ b/arch/s390/kernel/signal.c @@ -89,13 +89,6 @@ SYSCALL_DEFINE3(sigaction, int, sig, const struct old_sigaction __user *, act, return ret; } -SYSCALL_DEFINE2(sigaltstack, const stack_t __user *, uss, - stack_t __user *, uoss) -{ - struct pt_regs *regs = task_pt_regs(current); - return do_sigaltstack(uss, uoss, regs->gprs[15]); -} - /* Returns non-zero on fault. */ static int save_sigregs(struct pt_regs *regs, _sigregs __user *sregs) { @@ -190,8 +183,7 @@ SYSCALL_DEFINE0(rt_sigreturn) 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) + if (restore_altstack(&frame->uc.uc_stack)) goto badframe; return regs->gprs[2]; badframe: @@ -325,10 +317,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, /* Create the ucontext. */ err |= __put_user(0, &frame->uc.uc_flags); err |= __put_user(NULL, &frame->uc.uc_link); - err |= __put_user((void __user *)current->sas_ss_sp, &frame->uc.uc_stack.ss_sp); - err |= __put_user(sas_ss_flags(regs->gprs[15]), - &frame->uc.uc_stack.ss_flags); - err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size); + err |= __save_altstack(&frame->uc.uc_stack, regs->gprs[15]); err |= save_sigregs(regs, &frame->uc.uc_mcontext); err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)); if (err) |