diff options
Diffstat (limited to 'arch/s390/kernel/syscall.c')
| -rw-r--r-- | arch/s390/kernel/syscall.c | 31 |
1 files changed, 2 insertions, 29 deletions
diff --git a/arch/s390/kernel/syscall.c b/arch/s390/kernel/syscall.c index dc2355c623d6..5ec28028315b 100644 --- a/arch/s390/kernel/syscall.c +++ b/arch/s390/kernel/syscall.c @@ -38,33 +38,6 @@ #include "entry.h" -/* - * Perform the mmap() system call. Linux for S/390 isn't able to handle more - * than 5 system call parameters, so this system call uses a memory block - * for parameter passing. - */ - -struct s390_mmap_arg_struct { - unsigned long addr; - unsigned long len; - unsigned long prot; - unsigned long flags; - unsigned long fd; - unsigned long offset; -}; - -SYSCALL_DEFINE1(mmap2, struct s390_mmap_arg_struct __user *, arg) -{ - struct s390_mmap_arg_struct a; - int error = -EFAULT; - - if (copy_from_user(&a, arg, sizeof(a))) - goto out; - error = ksys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, a.fd, a.offset); -out: - return error; -} - #ifdef CONFIG_SYSVIPC /* * sys_ipc() is the de-multiplexer for the SysV IPC calls. @@ -151,8 +124,8 @@ void noinstr __do_syscall(struct pt_regs *regs, int per_trap) { add_random_kstack_offset(); enter_from_user_mode(regs); - regs->psw = S390_lowcore.svc_old_psw; - regs->int_code = S390_lowcore.svc_int_code; + regs->psw = get_lowcore()->svc_old_psw; + regs->int_code = get_lowcore()->svc_int_code; update_timer_sys(); if (static_branch_likely(&cpu_has_bear)) current->thread.last_break = regs->last_break; |