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authorJason Gunthorpe <jgg@mellanox.com>2019-07-12 06:54:40 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2019-07-12 21:05:42 +0300
commit442a5a9a9295bfd9b0cffd0691ef8a6ce81db7c4 (patch)
treebce83bd43c6715f9c4c0fe6e6a61104908f14290 /include/linux/hugetlb.h
parent465fc3a9b3129722b0df395529b3894b0b90d2de (diff)
downloadlinux-442a5a9a9295bfd9b0cffd0691ef8a6ce81db7c4.tar.xz
mm: make !CONFIG_HUGE_PAGE wrappers into static inlines
Instead of using defines, which loses type safety and provokes unused variable warnings from gcc, put the constants into static inlines. Link: http://lkml.kernel.org/r/20190522235102.GA15370@mellanox.com Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> Suggested-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com> Cc: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/hugetlb.h')
-rw-r--r--include/linux/hugetlb.h102
1 files changed, 86 insertions, 16 deletions
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index edf476c8cfb9..f895a79c6f5c 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -608,22 +608,92 @@ static inline void huge_ptep_modify_prot_commit(struct vm_area_struct *vma,
#else /* CONFIG_HUGETLB_PAGE */
struct hstate {};
-#define alloc_huge_page(v, a, r) NULL
-#define alloc_huge_page_node(h, nid) NULL
-#define alloc_huge_page_nodemask(h, preferred_nid, nmask) NULL
-#define alloc_huge_page_vma(h, vma, address) NULL
-#define alloc_bootmem_huge_page(h) NULL
-#define hstate_file(f) NULL
-#define hstate_sizelog(s) NULL
-#define hstate_vma(v) NULL
-#define hstate_inode(i) NULL
-#define page_hstate(page) NULL
-#define huge_page_size(h) PAGE_SIZE
-#define huge_page_mask(h) PAGE_MASK
-#define vma_kernel_pagesize(v) PAGE_SIZE
-#define vma_mmu_pagesize(v) PAGE_SIZE
-#define huge_page_order(h) 0
-#define huge_page_shift(h) PAGE_SHIFT
+
+static inline struct page *alloc_huge_page(struct vm_area_struct *vma,
+ unsigned long addr,
+ int avoid_reserve)
+{
+ return NULL;
+}
+
+static inline struct page *alloc_huge_page_node(struct hstate *h, int nid)
+{
+ return NULL;
+}
+
+static inline struct page *
+alloc_huge_page_nodemask(struct hstate *h, int preferred_nid, nodemask_t *nmask)
+{
+ return NULL;
+}
+
+static inline struct page *alloc_huge_page_vma(struct hstate *h,
+ struct vm_area_struct *vma,
+ unsigned long address)
+{
+ return NULL;
+}
+
+static inline int __alloc_bootmem_huge_page(struct hstate *h)
+{
+ return 0;
+}
+
+static inline struct hstate *hstate_file(struct file *f)
+{
+ return NULL;
+}
+
+static inline struct hstate *hstate_sizelog(int page_size_log)
+{
+ return NULL;
+}
+
+static inline struct hstate *hstate_vma(struct vm_area_struct *vma)
+{
+ return NULL;
+}
+
+static inline struct hstate *hstate_inode(struct inode *i)
+{
+ return NULL;
+}
+
+static inline struct hstate *page_hstate(struct page *page)
+{
+ return NULL;
+}
+
+static inline unsigned long huge_page_size(struct hstate *h)
+{
+ return PAGE_SIZE;
+}
+
+static inline unsigned long huge_page_mask(struct hstate *h)
+{
+ return PAGE_MASK;
+}
+
+static inline unsigned long vma_kernel_pagesize(struct vm_area_struct *vma)
+{
+ return PAGE_SIZE;
+}
+
+static inline unsigned long vma_mmu_pagesize(struct vm_area_struct *vma)
+{
+ return PAGE_SIZE;
+}
+
+static inline unsigned int huge_page_order(struct hstate *h)
+{
+ return 0;
+}
+
+static inline unsigned int huge_page_shift(struct hstate *h)
+{
+ return PAGE_SHIFT;
+}
+
static inline bool hstate_is_gigantic(struct hstate *h)
{
return false;