thp: change pmd_trans_huge_lock() interface to return ptl

[mirror_ubuntu-artful-kernel.git] / include / linux / huge_mm.h

diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h
index cfe81e10bd5429baf5ed0ccf50bd4613ff6ee3c6..459fd25b378e73cfd2e911761ad845076be547de 100644 (file)
--- a/include/linux/huge_mm.h
+++ b/include/linux/huge_mm.h
@@ -120,15 +120,15 @@ extern void vma_adjust_trans_huge(struct vm_area_struct *vma,
                                    unsigned long start,
                                    unsigned long end,
                                    long adjust_next);
-extern bool __pmd_trans_huge_lock(pmd_t *pmd, struct vm_area_struct *vma,
-               spinlock_t **ptl);
+extern spinlock_t *__pmd_trans_huge_lock(pmd_t *pmd,
+               struct vm_area_struct *vma);
 /* mmap_sem must be held on entry */
-static inline bool pmd_trans_huge_lock(pmd_t *pmd, struct vm_area_struct *vma,
-               spinlock_t **ptl)
+static inline spinlock_t *pmd_trans_huge_lock(pmd_t *pmd,
+               struct vm_area_struct *vma)
 {
        VM_BUG_ON_VMA(!rwsem_is_locked(&vma->vm_mm->mmap_sem), vma);
        if (pmd_trans_huge(*pmd) || pmd_devmap(*pmd))
-               return __pmd_trans_huge_lock(pmd, vma, ptl);
+               return __pmd_trans_huge_lock(pmd, vma);
        else
                return false;
 }
@@ -190,10 +190,10 @@ static inline void vma_adjust_trans_huge(struct vm_area_struct *vma,
                                         long adjust_next)
 {
 }
-static inline bool pmd_trans_huge_lock(pmd_t *pmd, struct vm_area_struct *vma,
-               spinlock_t **ptl)
+static inline spinlock_t *pmd_trans_huge_lock(pmd_t *pmd,
+               struct vm_area_struct *vma)
 {
-       return false;
+       return NULL;
 }
 
 static inline int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,