hugetlb-use-mmu_gather-instead-of-a-temporary-linked-list-for-accumulating-pages-fix

fix CONFIG_HUGETLB_PAGE=n build

mm/memory.c: In function 'unmap_single_vma':
mm/memory.c:1334: error: implicit declaration of function '__unmap_hugepage_range'

Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: Hillf Danton <dhillf@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 830306c10f14c99e46c9040e60dc3fdef7605c36..d9f427dea08602f620408e01f17d5c521a549f91 100644 (file)
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -41,8 +41,9 @@ int follow_hugetlb_page(struct mm_struct *, struct vm_area_struct *,
                        unsigned long *, int *, int, unsigned int flags);
 void unmap_hugepage_range(struct vm_area_struct *,
                          unsigned long, unsigned long, struct page *);
-void __unmap_hugepage_range(struct mmu_gather *tlb, struct vm_area_struct *,
-                           unsigned long, unsigned long, struct page *);
+void __unmap_hugepage_range(struct mmu_gather *tlb, struct vm_area_struct *vms,
+                               unsigned long start, unsigned long end,
+                               struct page *ref_page);
 int hugetlb_prefault(struct address_space *, struct vm_area_struct *);
 void hugetlb_report_meminfo(struct seq_file *);
 int hugetlb_report_node_meminfo(int, char *);
@@ -119,6 +120,12 @@ static inline void copy_huge_page(struct page *dst, struct page *src)
 
 #define hugetlb_change_protection(vma, address, end, newprot)
 
+static inline void __unmap_hugepage_range(struct mmu_gather *tlb,
+                       struct vm_area_struct *vma, unsigned long start,
+                       unsigned long end, struct page *ref_page)
+{
+}
+
 #endif /* !CONFIG_HUGETLB_PAGE */
 
 #define HUGETLB_ANON_FILE "anon_hugepage"