Merged Al's ubd changes with mine.

arch/um/Makefile

@@ -30,11 +30,6 @@ PROFILE += -pg -DPROFILING
 LINK_PROFILE = $(PROFILE) -Wl,--wrap,__monstartup
 endif
 
-ARCH_SUBDIRS = $(ARCH_DIR)/drivers $(ARCH_DIR)/kernel \
-	$(ARCH_DIR)/sys-$(SUBARCH) $(ARCH_DIR)/os-$(OS)
-
-SUBDIRS += $(ARCH_SUBDIRS)
-
 core-y			+= $(ARCH_DIR)/kernel/		 \
 			   $(ARCH_DIR)/drivers/          \
 			   $(ARCH_DIR)/sys-$(SUBARCH)/

arch/um/drivers/chan_kern.c

@@ -409,7 +409,7 @@ void chan_interrupt(struct list_head *chans, struct tq_struct *task,
 		do {
 			if((tty != NULL) && 
 			   (tty->flip.count >= TTY_FLIPBUF_SIZE)){
-				queue_task(task, &tq_timer);
+				schedule_task(task);
 				goto out;
 			}
 			err = chan->ops->read(chan->fd, &c, chan->data);

arch/um/drivers/ubd_kern.c

@@ -880,6 +880,7 @@ static int ubd_ioctl(struct inode * inode, struct file * file,
 			return(-EFAULT);
 		return(0);
 	}
+	return(-EINVAL);
 }
 
 static int ubd_revalidate(kdev_t rdev)

arch/um/include/sysdep-ppc/sigcontext.h

@@ -9,7 +9,7 @@
 #define DSISR_WRITE 0x02000000
 
 #define SC_FAULT_ADDR(sc) ({ \
-		struct sigcontext_struct *_sc = (sc); \
+		struct sigcontext *_sc = (sc); \
 		long retval = -1; \
 		switch (_sc->regs->trap) { \
 		case 0x300: \
@@ -27,7 +27,7 @@
 	})
 
 #define SC_FAULT_WRITE(sc) ({ \
-		struct sigcontext_struct *_sc = (sc); \
+		struct sigcontext *_sc = (sc); \
 		long retval = -1; \
 		switch (_sc->regs->trap) { \
 		case 0x300: \

arch/um/kernel/signal_kern.c

@@ -101,12 +101,12 @@ static int handle_signal(struct pt_regs *regs, unsigned long signr,
 		ka->sa.sa_handler = SIG_DFL;
 
 	if (!(ka->sa.sa_flags & SA_NODEFER)) {
-		spin_lock_irq(&current->sigmask_lock);
+		spin_lock_irq(&current->sig->siglock);
 		sigorsets(&current->blocked, &current->blocked, 
 			  &ka->sa.sa_mask);
 		sigaddset(&current->blocked, signr);
 		recalc_sigpending();
-		spin_unlock_irq(&current->sigmask_lock);
+		spin_unlock_irq(&current->sig->siglock);
 	}
 
 	sp = PT_REGS_SP(regs);
@@ -188,11 +188,11 @@ int sys_sigsuspend(int history0, int history1, old_sigset_t mask)
 	sigset_t saveset;
 
 	mask &= _BLOCKABLE;
-	spin_lock_irq(&current->sigmask_lock);
+	spin_lock_irq(&current->sig->siglock);
 	saveset = current->blocked;
 	siginitset(&current->blocked, mask);
 	recalc_sigpending();
-	spin_unlock_irq(&current->sigmask_lock);
+	spin_unlock_irq(&current->sig->siglock);
 
 	while (1) {
 		current->state = TASK_INTERRUPTIBLE;
@@ -214,11 +214,11 @@ int sys_rt_sigsuspend(sigset_t *unewset, size_t sigsetsize)
 		return -EFAULT;
 	sigdelsetmask(&newset, ~_BLOCKABLE);
 
-	spin_lock_irq(&current->sigmask_lock);
+	spin_lock_irq(&current->sig->siglock);
 	saveset = current->blocked;
 	current->blocked = newset;
 	recalc_sigpending();
-	spin_unlock_irq(&current->sigmask_lock);
+	spin_unlock_irq(&current->sig->siglock);
 
 	while (1) {
 		current->state = TASK_INTERRUPTIBLE;
@@ -234,13 +234,13 @@ int sys_sigreturn(struct pt_regs regs)
 	void *mask = sp_to_mask(PT_REGS_SP(&regs));
 	int sig_size = (_NSIG_WORDS - 1) * sizeof(unsigned long);
 
-	spin_lock_irq(&current->sigmask_lock);
+	spin_lock_irq(&current->sig->siglock);
 	copy_from_user(&current->blocked.sig[0], sc_sigmask(sc), 
 		       sizeof(current->blocked.sig[0]));
 	copy_from_user(&current->blocked.sig[1], mask, sig_size);
 	sigdelsetmask(&current->blocked, ~_BLOCKABLE);
 	recalc_sigpending();
-	spin_unlock_irq(&current->sigmask_lock);
+	spin_unlock_irq(&current->sig->siglock);
 	copy_sc_from_user(current->thread.regs.regs.sc, sc,
 			  &signal_frame_sc.arch);
 	return(PT_REGS_SYSCALL_RET(&current->thread.regs));
@@ -252,11 +252,11 @@ int sys_rt_sigreturn(struct pt_regs regs)
 	void *mask = sp_to_rt_mask(PT_REGS_SP(&regs));
 	int sig_size = _NSIG_WORDS * sizeof(unsigned long);
 
-	spin_lock_irq(&current->sigmask_lock);
+	spin_lock_irq(&current->sig->siglock);
 	copy_from_user(&current->blocked, mask, sig_size);
 	sigdelsetmask(&current->blocked, ~_BLOCKABLE);
 	recalc_sigpending();
-	spin_unlock_irq(&current->sigmask_lock);
+	spin_unlock_irq(&current->sig->siglock);
 	copy_sc_from_user(current->thread.regs.regs.sc, sc,
 			  &signal_frame_sc.arch);
 	return(PT_REGS_SYSCALL_RET(&current->thread.regs));

arch/um/kernel/trap_user.c

@@ -417,7 +417,7 @@ int nsegfaults = 0;
 
 void segv_handler(int sig, struct uml_pt_regs *regs)
 {
-	struct sigcontext_struct *context = regs->sc;
+	struct sigcontext *context = regs->sc;
 	int index;
 
 	if(regs->is_user && !SEGV_IS_FIXABLE(context)){

include/asm-um/topology.h

+#ifndef _ASM_UM_TOPOLOGY_H
+#define _ASM_UM_TOPOLOGY_H
+
+#include <asm-generic/topology.h>
+
+#endif