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-rw-r--r--include/linux/hugetlb.h11
-rw-r--r--include/linux/hugetlb_inline.h22
-rw-r--r--include/linux/pagemap.h1
3 files changed, 24 insertions, 10 deletions
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 78b4bc64c006..d47a7c41745d 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -2,6 +2,7 @@
2#define _LINUX_HUGETLB_H 2#define _LINUX_HUGETLB_H
3 3
4#include <linux/fs.h> 4#include <linux/fs.h>
5#include <linux/hugetlb_inline.h>
5 6
6struct ctl_table; 7struct ctl_table;
7struct user_struct; 8struct user_struct;
@@ -14,11 +15,6 @@ struct user_struct;
14 15
15int PageHuge(struct page *page); 16int PageHuge(struct page *page);
16 17
17static inline int is_vm_hugetlb_page(struct vm_area_struct *vma)
18{
19 return vma->vm_flags & VM_HUGETLB;
20}
21
22void reset_vma_resv_huge_pages(struct vm_area_struct *vma); 18void reset_vma_resv_huge_pages(struct vm_area_struct *vma);
23int hugetlb_sysctl_handler(struct ctl_table *, int, void __user *, size_t *, loff_t *); 19int hugetlb_sysctl_handler(struct ctl_table *, int, void __user *, size_t *, loff_t *);
24int hugetlb_overcommit_handler(struct ctl_table *, int, void __user *, size_t *, loff_t *); 20int hugetlb_overcommit_handler(struct ctl_table *, int, void __user *, size_t *, loff_t *);
@@ -77,11 +73,6 @@ static inline int PageHuge(struct page *page)
77 return 0; 73 return 0;
78} 74}
79 75
80static inline int is_vm_hugetlb_page(struct vm_area_struct *vma)
81{
82 return 0;
83}
84
85static inline void reset_vma_resv_huge_pages(struct vm_area_struct *vma) 76static inline void reset_vma_resv_huge_pages(struct vm_area_struct *vma)
86{ 77{
87} 78}
diff --git a/include/linux/hugetlb_inline.h b/include/linux/hugetlb_inline.h
new file mode 100644
index 000000000000..cf00b6df53dc
--- /dev/null
+++ b/include/linux/hugetlb_inline.h
@@ -0,0 +1,22 @@
1#ifndef _LINUX_HUGETLB_INLINE_H
2#define _LINUX_HUGETLB_INLINE_H 1
3
4#ifdef CONFIG_HUGETLBFS
5
6#include <linux/mm.h>
7
8static inline int is_vm_hugetlb_page(struct vm_area_struct *vma)
9{
10 return vma->vm_flags & VM_HUGETLB;
11}
12
13#else
14
15static inline int is_vm_hugetlb_page(struct vm_area_struct *vma)
16{
17 return 0;
18}
19
20#endif
21
22#endif
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index 3c62ed408492..b2bd2bae9775 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -13,6 +13,7 @@
13#include <linux/gfp.h> 13#include <linux/gfp.h>
14#include <linux/bitops.h> 14#include <linux/bitops.h>
15#include <linux/hardirq.h> /* for in_interrupt() */ 15#include <linux/hardirq.h> /* for in_interrupt() */
16#include <linux/hugetlb_inline.h>
16 17
17/* 18/*
18 * Bits in mapping->flags. The lower __GFP_BITS_SHIFT bits are the page 19 * Bits in mapping->flags. The lower __GFP_BITS_SHIFT bits are the page