mirror of https://gitee.com/openkylin/linux.git
x86: fix up some bad global variable names in mm/init.c
Impact: cleanup The table_start, table_end, and table_top are too generic for global namespace so rename them to be more specific. Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <1236257708-27269-15-git-send-email-penberg@cs.helsinki.fi> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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@ -23,9 +23,9 @@ kernel_physical_mapping_init(unsigned long start,
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unsigned long page_size_mask);
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#endif
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unsigned long __initdata table_start;
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unsigned long __meminitdata table_end;
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unsigned long __meminitdata table_top;
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unsigned long __initdata e820_table_start;
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unsigned long __meminitdata e820_table_end;
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unsigned long __meminitdata e820_table_top;
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int after_bootmem;
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@ -78,21 +78,21 @@ static void __init find_early_table_space(unsigned long end, int use_pse,
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*/
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#ifdef CONFIG_X86_32
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start = 0x7000;
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table_start = find_e820_area(start, max_pfn_mapped<<PAGE_SHIFT,
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e820_table_start = find_e820_area(start, max_pfn_mapped<<PAGE_SHIFT,
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tables, PAGE_SIZE);
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#else /* CONFIG_X86_64 */
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start = 0x8000;
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table_start = find_e820_area(start, end, tables, PAGE_SIZE);
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e820_table_start = find_e820_area(start, end, tables, PAGE_SIZE);
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#endif
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if (table_start == -1UL)
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if (e820_table_start == -1UL)
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panic("Cannot find space for the kernel page tables");
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table_start >>= PAGE_SHIFT;
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table_end = table_start;
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table_top = table_start + (tables >> PAGE_SHIFT);
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e820_table_start >>= PAGE_SHIFT;
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e820_table_end = e820_table_start;
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e820_table_top = e820_table_start + (tables >> PAGE_SHIFT);
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printk(KERN_DEBUG "kernel direct mapping tables up to %lx @ %lx-%lx\n",
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end, table_start << PAGE_SHIFT, table_top << PAGE_SHIFT);
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end, e820_table_start << PAGE_SHIFT, e820_table_top << PAGE_SHIFT);
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}
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struct map_range {
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@ -324,9 +324,9 @@ unsigned long __init_refok init_memory_mapping(unsigned long start,
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#endif
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__flush_tlb_all();
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if (!after_bootmem && table_end > table_start)
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reserve_early(table_start << PAGE_SHIFT,
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table_end << PAGE_SHIFT, "PGTABLE");
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if (!after_bootmem && e820_table_end > e820_table_start)
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reserve_early(e820_table_start << PAGE_SHIFT,
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e820_table_end << PAGE_SHIFT, "PGTABLE");
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if (!after_bootmem)
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early_memtest(start, end);
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@ -59,16 +59,16 @@ unsigned long highstart_pfn, highend_pfn;
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static noinline int do_test_wp_bit(void);
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extern unsigned long __initdata table_start;
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extern unsigned long __meminitdata table_end;
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extern unsigned long __meminitdata table_top;
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extern unsigned long __initdata e820_table_start;
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extern unsigned long __meminitdata e820_table_end;
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extern unsigned long __meminitdata e820_table_top;
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static __init void *alloc_low_page(void)
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{
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unsigned long pfn = table_end++;
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unsigned long pfn = e820_table_end++;
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void *adr;
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if (pfn >= table_top)
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if (pfn >= e820_table_top)
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panic("alloc_low_page: ran out of memory");
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adr = __va(pfn * PAGE_SIZE);
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@ -149,8 +149,8 @@ static pte_t *__init page_table_kmap_check(pte_t *pte, pmd_t *pmd,
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if (pmd_idx_kmap_begin != pmd_idx_kmap_end
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&& (vaddr >> PMD_SHIFT) >= pmd_idx_kmap_begin
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&& (vaddr >> PMD_SHIFT) <= pmd_idx_kmap_end
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&& ((__pa(pte) >> PAGE_SHIFT) < table_start
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|| (__pa(pte) >> PAGE_SHIFT) >= table_end)) {
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&& ((__pa(pte) >> PAGE_SHIFT) < e820_table_start
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|| (__pa(pte) >> PAGE_SHIFT) >= e820_table_end)) {
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pte_t *newpte;
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int i;
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@ -283,13 +283,13 @@ void __init cleanup_highmap(void)
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}
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}
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extern unsigned long __initdata table_start;
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extern unsigned long __meminitdata table_end;
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extern unsigned long __meminitdata table_top;
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extern unsigned long __initdata e820_table_start;
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extern unsigned long __meminitdata e820_table_end;
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extern unsigned long __meminitdata e820_table_top;
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static __ref void *alloc_low_page(unsigned long *phys)
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{
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unsigned long pfn = table_end++;
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unsigned long pfn = e820_table_end++;
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void *adr;
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if (after_bootmem) {
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@ -299,7 +299,7 @@ static __ref void *alloc_low_page(unsigned long *phys)
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return adr;
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}
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if (pfn >= table_top)
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if (pfn >= e820_table_top)
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panic("alloc_low_page: ran out of memory");
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adr = early_memremap(pfn * PAGE_SIZE, PAGE_SIZE);
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