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authorKirill A. Shutemov <kirill.shutemov@linux.intel.com>2016-01-15 16:52:53 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2016-01-15 17:56:32 -0800
commitad0bed24e98bcae9952c2d1f663ec7cb6344a387 (patch)
tree7bed790ccf57bac9e71d1c2123c111d1722367e5 /include
parent56a17b8836398ffab52c00dda8442f1680dc251b (diff)
thp: drop all split_huge_page()-related code
We will re-introduce new version with new refcounting later in patchset. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Tested-by: Sasha Levin <sasha.levin@oracle.com> Tested-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Acked-by: Jerome Marchand <jmarchan@redhat.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Hugh Dickins <hughd@google.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Rik van Riel <riel@redhat.com> Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Cc: Steve Capper <steve.capper@linaro.org> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@suse.cz> Cc: Christoph Lameter <cl@linux.com> Cc: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/huge_mm.h28
1 files changed, 6 insertions, 22 deletions
diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h
index 805c7ae42280..9df5802faadf 100644
--- a/include/linux/huge_mm.h
+++ b/include/linux/huge_mm.h
@@ -95,28 +95,12 @@ extern bool is_vma_temporary_stack(struct vm_area_struct *vma);
#endif /* CONFIG_DEBUG_VM */
extern unsigned long transparent_hugepage_flags;
-extern int split_huge_page_to_list(struct page *page, struct list_head *list);
-static inline int split_huge_page(struct page *page)
-{
- return split_huge_page_to_list(page, NULL);
-}
-extern void __split_huge_page_pmd(struct vm_area_struct *vma,
- unsigned long address, pmd_t *pmd);
-#define split_huge_pmd(__vma, __pmd, __address) \
- do { \
- pmd_t *____pmd = (__pmd); \
- if (unlikely(pmd_trans_huge(*____pmd))) \
- __split_huge_page_pmd(__vma, __address, \
- ____pmd); \
- } while (0)
-#define wait_split_huge_page(__anon_vma, __pmd) \
- do { \
- pmd_t *____pmd = (__pmd); \
- anon_vma_lock_write(__anon_vma); \
- anon_vma_unlock_write(__anon_vma); \
- BUG_ON(pmd_trans_splitting(*____pmd) || \
- pmd_trans_huge(*____pmd)); \
- } while (0)
+
+#define split_huge_page_to_list(page, list) BUILD_BUG()
+#define split_huge_page(page) BUILD_BUG()
+#define split_huge_pmd(__vma, __pmd, __address) BUILD_BUG()
+
+#define wait_split_huge_page(__anon_vma, __pmd) BUILD_BUG()
#if HPAGE_PMD_ORDER >= MAX_ORDER
#error "hugepages can't be allocated by the buddy allocator"
#endif