genirq: Add IRQF_RESUME_EARLY and resume such IRQs earlier

[firefly-linux-kernel-4.4.55.git] / include / linux / mm.h

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 9670f71d7be961bbe56e9c1701f475bc4be7981c..ec6e33d4ed0c135078e2a44c076848bc73eaac0e 100644 (file)
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -959,6 +959,8 @@ int invalidate_inode_page(struct page *page);
 #ifdef CONFIG_MMU
 extern int handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma,
                        unsigned long address, unsigned int flags);
+extern int fixup_user_fault(struct task_struct *tsk, struct mm_struct *mm,
+                           unsigned long address, unsigned int fault_flags);
 #else
 static inline int handle_mm_fault(struct mm_struct *mm,
                        struct vm_area_struct *vma, unsigned long address,
@@ -968,6 +970,14 @@ static inline int handle_mm_fault(struct mm_struct *mm,
        BUG();
        return VM_FAULT_SIGBUS;
 }
+static inline int fixup_user_fault(struct task_struct *tsk,
+               struct mm_struct *mm, unsigned long address,
+               unsigned int fault_flags)
+{
+       /* should never happen if there's no MMU */
+       BUG();
+       return -EFAULT;
+}
 #endif
 
 extern int make_pages_present(unsigned long addr, unsigned long end);