diff options
Diffstat (limited to 'arch/um')
| -rw-r--r-- | arch/um/drivers/chan_kern.c | 17 | ||||
| -rw-r--r-- | arch/um/drivers/line.c | 2 | ||||
| -rw-r--r-- | arch/um/drivers/mconsole_kern.c | 4 | ||||
| -rw-r--r-- | arch/um/include/asm/Kbuild | 1 | ||||
| -rw-r--r-- | arch/um/kernel/exec.c | 3 | ||||
| -rw-r--r-- | arch/um/kernel/process.c | 5 | ||||
| -rw-r--r-- | arch/um/kernel/signal.c | 5 | ||||
| -rw-r--r-- | arch/um/kernel/syscall.c | 23 |
8 files changed, 11 insertions, 49 deletions
diff --git a/arch/um/drivers/chan_kern.c b/arch/um/drivers/chan_kern.c index c3bba73e4be6..e9a0abc6a32f 100644 --- a/arch/um/drivers/chan_kern.c +++ b/arch/um/drivers/chan_kern.c @@ -83,21 +83,8 @@ static const struct chan_ops not_configged_ops = { static void tty_receive_char(struct tty_struct *tty, char ch) { - if (tty == NULL) - return; - - if (I_IXON(tty) && !I_IXOFF(tty) && !tty->raw) { - if (ch == STOP_CHAR(tty)) { - stop_tty(tty); - return; - } - else if (ch == START_CHAR(tty)) { - start_tty(tty); - return; - } - } - - tty_insert_flip_char(tty, ch, TTY_NORMAL); + if (tty) + tty_insert_flip_char(tty, ch, TTY_NORMAL); } static int open_one_chan(struct chan *chan) diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c index fd9a15b318af..9ffc28bd4b7a 100644 --- a/arch/um/drivers/line.c +++ b/arch/um/drivers/line.c @@ -584,6 +584,8 @@ int register_lines(struct line_driver *line_driver, printk(KERN_ERR "register_lines : can't register %s driver\n", line_driver->name); put_tty_driver(driver); + for (i = 0; i < nlines; i++) + tty_port_destroy(&lines[i].port); return err; } diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c index 79ccfe6c7078..4bd82ac0210f 100644 --- a/arch/um/drivers/mconsole_kern.c +++ b/arch/um/drivers/mconsole_kern.c @@ -123,7 +123,7 @@ void mconsole_log(struct mc_request *req) void mconsole_proc(struct mc_request *req) { - struct vfsmount *mnt = current->nsproxy->pid_ns->proc_mnt; + struct vfsmount *mnt = task_active_pid_ns(current)->proc_mnt; char *buf; int len; struct file *file; @@ -648,7 +648,7 @@ static void stack_proc(void *arg) struct task_struct *from = current, *to = arg; to->thread.saved_task = from; - rcu_switch(from, to); + rcu_user_hooks_switch(from, to); switch_to(from, to, from); } diff --git a/arch/um/include/asm/Kbuild b/arch/um/include/asm/Kbuild index 0f6e7b328265..b30f34a79882 100644 --- a/arch/um/include/asm/Kbuild +++ b/arch/um/include/asm/Kbuild @@ -2,3 +2,4 @@ generic-y += bug.h cputime.h device.h emergency-restart.h futex.h hardirq.h generic-y += hw_irq.h irq_regs.h kdebug.h percpu.h sections.h topology.h xor.h generic-y += ftrace.h pci.h io.h param.h delay.h mutex.h current.h exec.h generic-y += switch_to.h clkdev.h +generic-y += trace_clock.h diff --git a/arch/um/kernel/exec.c b/arch/um/kernel/exec.c index 3a8ece7d09ca..0d7103c9eff3 100644 --- a/arch/um/kernel/exec.c +++ b/arch/um/kernel/exec.c @@ -32,13 +32,14 @@ void flush_thread(void) "err = %d\n", ret); force_sig(SIGKILL, current); } + get_safe_registers(current_pt_regs()->regs.gp, + current_pt_regs()->regs.fp); __switch_mm(¤t->mm->context.id); } void start_thread(struct pt_regs *regs, unsigned long eip, unsigned long esp) { - get_safe_registers(regs->regs.gp, regs->regs.fp); PT_REGS_IP(regs) = eip; PT_REGS_SP(regs) = esp; current->ptrace &= ~PT_DTRACE; diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c index b6d699cdd557..b462b13c5bae 100644 --- a/arch/um/kernel/process.c +++ b/arch/um/kernel/process.c @@ -161,8 +161,7 @@ void fork_handler(void) } int copy_thread(unsigned long clone_flags, unsigned long sp, - unsigned long arg, struct task_struct * p, - struct pt_regs *regs) + unsigned long arg, struct task_struct * p) { void (*handler)(void); int kthread = current->flags & PF_KTHREAD; @@ -171,7 +170,7 @@ int copy_thread(unsigned long clone_flags, unsigned long sp, p->thread = (struct thread_struct) INIT_THREAD; if (!kthread) { - memcpy(&p->thread.regs.regs, ®s->regs, + memcpy(&p->thread.regs.regs, current_pt_regs(), sizeof(p->thread.regs.regs)); PT_REGS_SET_SYSCALL_RETURN(&p->thread.regs, 0); if (sp != 0) diff --git a/arch/um/kernel/signal.c b/arch/um/kernel/signal.c index db18eb6124e1..48ccf718e290 100644 --- a/arch/um/kernel/signal.c +++ b/arch/um/kernel/signal.c @@ -132,8 +132,3 @@ long sys_sigsuspend(int history0, int history1, old_sigset_t mask) siginitset(&blocked, mask); return sigsuspend(&blocked); } - -long sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss) -{ - return do_sigaltstack(uss, uoss, PT_REGS_SP(¤t->thread.regs)); -} diff --git a/arch/um/kernel/syscall.c b/arch/um/kernel/syscall.c index a81f3705e90f..c1d0ae069b53 100644 --- a/arch/um/kernel/syscall.c +++ b/arch/um/kernel/syscall.c @@ -14,29 +14,6 @@ #include <asm/uaccess.h> #include <asm/unistd.h> -long sys_fork(void) -{ - return do_fork(SIGCHLD, UPT_SP(¤t->thread.regs.regs), - ¤t->thread.regs, 0, NULL, NULL); -} - -long sys_vfork(void) -{ - return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, - UPT_SP(¤t->thread.regs.regs), - ¤t->thread.regs, 0, NULL, NULL); -} - -long sys_clone(unsigned long clone_flags, unsigned long newsp, - void __user *parent_tid, void __user *child_tid) -{ - if (!newsp) - newsp = UPT_SP(¤t->thread.regs.regs); - - return do_fork(clone_flags, newsp, ¤t->thread.regs, 0, parent_tid, - child_tid); -} - long old_mmap(unsigned long addr, unsigned long len, unsigned long prot, unsigned long flags, unsigned long fd, unsigned long offset) |