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mm: consolidate pgtable_cache_init() and pgd_cache_init()
Both pgtable_cache_init() and pgd_cache_init() are used to initialize kmem cache for page table allocations on several architectures that do not use PAGE_SIZE tables for one or more levels of the page table hierarchy. Most architectures do not implement these functions and use __weak default NOP implementation of pgd_cache_init(). Since there is no such default for pgtable_cache_init(), its empty stub is duplicated among most architectures. Rename the definitions of pgd_cache_init() to pgtable_cache_init() and drop empty stubs of pgtable_cache_init(). Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Mike Rapoport <[email protected]> Acked-by: Will Deacon <[email protected]> [arm64] Acked-by: Thomas Gleixner <[email protected]> [x86] Cc: Catalin Marinas <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Matthew Wilcox <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
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36 changed files with 5 additions and 130 deletions
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@ -566,11 +566,6 @@ extern struct page *zero_page_memmap_ptr;
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#define KERNEL_TR_PAGE_SHIFT _PAGE_SIZE_64M
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#define KERNEL_TR_PAGE_SIZE (1 << KERNEL_TR_PAGE_SHIFT)
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/*
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* No page table caches to initialise
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*/
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#define pgtable_cache_init() do { } while (0)
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/* These tell get_user_pages() that the first gate page is accessible from user-level. */
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#define FIXADDR_USER_START GATE_ADDR
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#ifdef HAVE_BUGGY_SEGREL
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