PCI: fix pci_ioremap_bar() on s390

[linux-2.6-omap-h63xx.git] / include / asm-um / mmu_context.h

diff --git a/include/asm-um/mmu_context.h b/include/asm-um/mmu_context.h
index 6686fc524ca1aff467688ad52d8976f073a29ea5..54f42e8b0105b7112c9d42a47d41f5fc4fc68312 100644 (file)
--- a/include/asm-um/mmu_context.h
+++ b/include/asm-um/mmu_context.h
@@ -22,16 +22,10 @@ extern void force_flush_all(void);
 static inline void activate_mm(struct mm_struct *old, struct mm_struct *new)
 {
        /*
-        * This is called by fs/exec.c and fs/aio.c. In the first case, for an
-        * exec, we don't need to do anything as we're called from userspace
-        * and thus going to use a new host PID. In the second, we're called
-        * from a kernel thread, and thus need to go doing the mmap's on the
-        * host. Since they're very expensive, we want to avoid that as far as
-        * possible.
+        * This is called by fs/exec.c and sys_unshare()
+        * when the new ->mm is used for the first time.
         */
-       if (old != new && (current->flags & PF_BORROWED_MM))
-               __switch_mm(&new->context.id);
-
+       __switch_mm(&new->context.id);
        arch_dup_mmap(old, new);
 }