include/video/atmel_lcdc.h must #include <linux/workqueue.h>

[safe/jmp/linux-2.6] / include / asm-um / mmu_context.h

diff --git a/include/asm-um/mmu_context.h b/include/asm-um/mmu_context.h
index 0c4a375..54f42e8 100644 (file)
--- a/include/asm-um/mmu_context.h
+++ b/include/asm-um/mmu_context.h
@@ -1,16 +1,17 @@
 /* 
- * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
+ * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
  * Licensed under the GPL
  */
 
 #ifndef __UM_MMU_CONTEXT_H
 #define __UM_MMU_CONTEXT_H
 
-#include <asm-generic/mm_hooks.h>
-
 #include "linux/sched.h"
 #include "um_mmu.h"
 
+extern void arch_dup_mmap(struct mm_struct *oldmm, struct mm_struct *mm);
+extern void arch_exit_mmap(struct mm_struct *mm);
+
 #define get_mmu_context(task) do ; while(0)
 #define activate_context(tsk) do ; while(0)
 
@@ -21,15 +22,11 @@ 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.skas.id);
+       __switch_mm(&new->context.id);
+       arch_dup_mmap(old, new);
 }
 
 static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, 
@@ -41,7 +38,7 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
                cpu_clear(cpu, prev->cpu_vm_mask);
                cpu_set(cpu, next->cpu_vm_mask);
                if(next != &init_mm)
-                       __switch_mm(&next->context.skas.id);
+                       __switch_mm(&next->context.id);
        }
 }
 
@@ -55,14 +52,3 @@ extern int init_new_context(struct task_struct *task, struct mm_struct *mm);
 extern void destroy_context(struct mm_struct *mm);
 
 #endif
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only.  This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */