diff options
Diffstat (limited to 'arch/m68k/kernel')
| -rw-r--r-- | arch/m68k/kernel/entry.S | 2 | ||||
| -rw-r--r-- | arch/m68k/kernel/signal.c | 15 |
2 files changed, 16 insertions, 1 deletions
diff --git a/arch/m68k/kernel/entry.S b/arch/m68k/kernel/entry.S index f28404d9a2bc..5b780826647c 100644 --- a/arch/m68k/kernel/entry.S +++ b/arch/m68k/kernel/entry.S @@ -424,7 +424,7 @@ resume: .data ALIGN sys_call_table: - .long sys_ni_syscall /* 0 - old "setup()" system call*/ + .long sys_restart_syscall /* 0 - old "setup()" system call, used for restarting */ .long sys_exit .long sys_fork .long sys_read diff --git a/arch/m68k/kernel/signal.c b/arch/m68k/kernel/signal.c index f9af893cd289..de2d05ddd86d 100644 --- a/arch/m68k/kernel/signal.c +++ b/arch/m68k/kernel/signal.c @@ -326,6 +326,9 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *usc, void __u struct sigcontext context; int err; + /* Always make any pending restarted system calls return -EINTR */ + current_thread_info()->restart_block.fn = do_no_restart_syscall; + /* get previous context */ if (copy_from_user(&context, usc, sizeof(context))) goto badframe; @@ -411,6 +414,9 @@ rt_restore_ucontext(struct pt_regs *regs, struct switch_stack *sw, unsigned long usp; int err; + /* Always make any pending restarted system calls return -EINTR */ + current_thread_info()->restart_block.fn = do_no_restart_syscall; + err = __get_user(temp, &uc->uc_mcontext.version); if (temp != MCONTEXT_VERSION) goto badframe; @@ -937,6 +943,15 @@ handle_restart(struct pt_regs *regs, struct k_sigaction *ka, int has_handler) regs->d0 = -EINTR; break; + case -ERESTART_RESTARTBLOCK: + if (!has_handler) { + regs->d0 = __NR_restart_syscall; + regs->pc -= 2; + break; + } + regs->d0 = -EINTR; + break; + case -ERESTARTSYS: if (has_handler && !(ka->sa.sa_flags & SA_RESTART)) { regs->d0 = -EINTR; |