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| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2016-01-15 16:52:53 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-01-15 17:56:32 -0800 |
| commit | ad0bed24e98bcae9952c2d1f663ec7cb6344a387 (patch) | |
| tree | 7bed790ccf57bac9e71d1c2123c111d1722367e5 /include | |
| parent | 56a17b8836398ffab52c00dda8442f1680dc251b (diff) | |
| download | linux-ad0bed24e98bcae9952c2d1f663ec7cb6344a387.tar.bz2 | |
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.h | 28 |
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 |