From 03ff9a235a0602724fc54916469b6e0939c62c9b Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Fri, 27 Apr 2007 16:01:40 +0200 Subject: [S390] System call cleanup. Remove system call glue for sys_clone, sys_fork, sys_vfork, sys_execve, sys_sigreturn, sys_rt_sigreturn and sys_sigaltstack. Call do_execve from kernel_execve directly, move pt_regs to the right place and branch to sysc_return to start the user space program. This removes the last in-kernel system call. Signed-off-by: Martin Schwidefsky Signed-off-by: Heiko Carstens --- arch/s390/kernel/compat_signal.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) (limited to 'arch/s390/kernel/compat_signal.c') diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c index 887a9881d0d..80a54a0149a 100644 --- a/arch/s390/kernel/compat_signal.c +++ b/arch/s390/kernel/compat_signal.c @@ -255,9 +255,9 @@ sys32_rt_sigaction(int sig, const struct sigaction32 __user *act, } asmlinkage long -sys32_sigaltstack(const stack_t32 __user *uss, stack_t32 __user *uoss, - struct pt_regs *regs) +sys32_sigaltstack(const stack_t32 __user *uss, stack_t32 __user *uoss) { + struct pt_regs *regs = task_pt_regs(current); stack_t kss, koss; unsigned long ss_sp; int ret, err = 0; @@ -344,8 +344,9 @@ static int restore_sigregs32(struct pt_regs *regs,_sigregs32 __user *sregs) return 0; } -asmlinkage long sys32_sigreturn(struct pt_regs *regs) +asmlinkage long sys32_sigreturn(void) { + struct pt_regs *regs = task_pt_regs(current); sigframe32 __user *frame = (sigframe32 __user *)regs->gprs[15]; sigset_t set; @@ -370,8 +371,9 @@ badframe: return 0; } -asmlinkage long sys32_rt_sigreturn(struct pt_regs *regs) +asmlinkage long sys32_rt_sigreturn(void) { + struct pt_regs *regs = task_pt_regs(current); rt_sigframe32 __user *frame = (rt_sigframe32 __user *)regs->gprs[15]; sigset_t set; stack_t st; @@ -407,8 +409,8 @@ asmlinkage long sys32_rt_sigreturn(struct pt_regs *regs) return regs->gprs[2]; badframe: - force_sig(SIGSEGV, current); - return 0; + force_sig(SIGSEGV, current); + return 0; } /* -- cgit v1.2.3