4 files changed, 18 insertions, 46 deletions

diff --git a/arch/um/kernel/irq.c b/arch/um/kernel/irq.c
index dba04d88b43..9870febdbea 100644
--- a/arch/um/kernel/irq.c
+++ b/arch/um/kernel/irq.c
@@ -30,7 +30,6 @@
 #include "irq_kern.h"
 #include "os.h"
 #include "sigio.h"
-#include "um_malloc.h"
 #include "misc_constants.h"
 #include "as-layout.h"
 
diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
index 8d2c5496532..bfa52f206bb 100644
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@ -46,7 +46,6 @@
 #include "mode.h"
 #include "mode_kern.h"
 #include "choose-mode.h"
-#include "um_malloc.h"
 
 /* This is a per-cpu array.  A processor only modifies its entry and it only
  * cares about its entry, so it's OK if another processor is modifying its
@@ -262,21 +261,6 @@ void dump_thread(struct pt_regs *regs, struct user *u)
 {
 }
 
-void *um_kmalloc(int size)
-{
-	return kmalloc(size, GFP_KERNEL);
-}
-
-void *um_kmalloc_atomic(int size)
-{
-	return kmalloc(size, GFP_ATOMIC);
-}
-
-void *um_vmalloc(int size)
-{
-	return vmalloc(size);
-}
-
 int __cant_sleep(void) {
 	return in_atomic() || irqs_disabled() || in_interrupt();
 	/* Is in_interrupt() really needed? */
diff --git a/arch/um/kernel/ptrace.c b/arch/um/kernel/ptrace.c
index 627742d8943..6916c8888db 100644
--- a/arch/um/kernel/ptrace.c
+++ b/arch/um/kernel/ptrace.c
@@ -52,17 +52,9 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 	switch (request) {
 		/* when I and D space are separate, these will need to be fixed. */
 	case PTRACE_PEEKTEXT: /* read word at location addr. */ 
-	case PTRACE_PEEKDATA: {
-		unsigned long tmp;
-		int copied;
-
-		ret = -EIO;
-		copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0);
-		if (copied != sizeof(tmp))
-			break;
-		ret = put_user(tmp, p);
+	case PTRACE_PEEKDATA:
+		ret = generic_ptrace_peekdata(child, addr, data);
 		break;
-	}
 
 	/* read the word at location addr in the USER area. */
         case PTRACE_PEEKUSR:
@@ -72,11 +64,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 	/* when I and D space are separate, this will have to be fixed. */
 	case PTRACE_POKETEXT: /* write the word at location addr. */
 	case PTRACE_POKEDATA:
-		ret = -EIO;
-		if (access_process_vm(child, addr, &data, sizeof(data), 
-				      1) != sizeof(data))
-			break;
-		ret = 0;
+		ret = generic_ptrace_pokedata(child, addr, data);
 		break;
 
 	case PTRACE_POKEUSR: /* write the word at location addr in the USER area */
diff --git a/arch/um/kernel/trap.c b/arch/um/kernel/trap.c
index abab90c3803..3850d53f79f 100644
--- a/arch/um/kernel/trap.c
+++ b/arch/um/kernel/trap.c
@@ -76,23 +76,24 @@ good_area:
 		goto out;
 
 	do {
+		int fault;
 survive:
-		switch (handle_mm_fault(mm, vma, address, is_write)){
-		case VM_FAULT_MINOR:
-			current->min_flt++;
-			break;
-		case VM_FAULT_MAJOR:
-			current->maj_flt++;
-			break;
-		case VM_FAULT_SIGBUS:
-			err = -EACCES;
-			goto out;
-		case VM_FAULT_OOM:
-			err = -ENOMEM;
-			goto out_of_memory;
-		default:
+		fault = handle_mm_fault(mm, vma, address, is_write);
+		if (unlikely(fault & VM_FAULT_ERROR)) {
+			if (fault & VM_FAULT_OOM) {
+				err = -ENOMEM;
+				goto out_of_memory;
+			} else if (fault & VM_FAULT_SIGBUS) {
+				err = -EACCES;
+				goto out;
+			}
 			BUG();
 		}
+		if (fault & VM_FAULT_MAJOR)
+			current->maj_flt++;
+		else
+			current->min_flt++;
+
 		pgd = pgd_offset(mm, address);
 		pud = pud_offset(pgd, address);
 		pmd = pmd_offset(pud, address);