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Merge branch 'linus' into core/percpu

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Conflicts:
	arch/x86/kernel/setup_percpu.c
This commit is contained in:
Ingo Molnar 2009-01-27 12:01:51 +01:00
commit 3ddeb51d9c
944 changed files with 12560 additions and 5881 deletions
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48
arch/x86/mm/init_32.c
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@ -137,6 +137,47 @@ static pte_t * __init one_page_table_init(pmd_t *pmd)
return pte_offset_kernel(pmd, 0);
}
static pte_t *__init page_table_kmap_check(pte_t *pte, pmd_t *pmd,
unsigned long vaddr, pte_t *lastpte)
{
#ifdef CONFIG_HIGHMEM
/*
* Something (early fixmap) may already have put a pte
* page here, which causes the page table allocation
* to become nonlinear. Attempt to fix it, and if it
* is still nonlinear then we have to bug.
*/
int pmd_idx_kmap_begin = fix_to_virt(FIX_KMAP_END) >> PMD_SHIFT;
int pmd_idx_kmap_end = fix_to_virt(FIX_KMAP_BEGIN) >> PMD_SHIFT;
if (pmd_idx_kmap_begin != pmd_idx_kmap_end
&& (vaddr >> PMD_SHIFT) >= pmd_idx_kmap_begin
&& (vaddr >> PMD_SHIFT) <= pmd_idx_kmap_end
&& ((__pa(pte) >> PAGE_SHIFT) < table_start
|| (__pa(pte) >> PAGE_SHIFT) >= table_end)) {
pte_t *newpte;
int i;
BUG_ON(after_init_bootmem);
newpte = alloc_low_page();
for (i = 0; i < PTRS_PER_PTE; i++)
set_pte(newpte + i, pte[i]);
paravirt_alloc_pte(&init_mm, __pa(newpte) >> PAGE_SHIFT);
set_pmd(pmd, __pmd(__pa(newpte)|_PAGE_TABLE));
BUG_ON(newpte != pte_offset_kernel(pmd, 0));
__flush_tlb_all();
paravirt_release_pte(__pa(pte) >> PAGE_SHIFT);
pte = newpte;
}
BUG_ON(vaddr < fix_to_virt(FIX_KMAP_BEGIN - 1)
&& vaddr > fix_to_virt(FIX_KMAP_END)
&& lastpte && lastpte + PTRS_PER_PTE != pte);
#endif
return pte;
}
/*
* This function initializes a certain range of kernel virtual memory
* with new bootmem page tables, everywhere page tables are missing in
@ -153,6 +194,7 @@ page_table_range_init(unsigned long start, unsigned long end, pgd_t *pgd_base)
unsigned long vaddr;
pgd_t *pgd;
pmd_t *pmd;
pte_t *pte = NULL;
vaddr = start;
pgd_idx = pgd_index(vaddr);
@ -164,7 +206,8 @@ page_table_range_init(unsigned long start, unsigned long end, pgd_t *pgd_base)
pmd = pmd + pmd_index(vaddr);
for (; (pmd_idx < PTRS_PER_PMD) && (vaddr != end);
pmd++, pmd_idx++) {
one_page_table_init(pmd);
pte = page_table_kmap_check(one_page_table_init(pmd),
pmd, vaddr, pte);
vaddr += PMD_SIZE;
}
@ -507,7 +550,6 @@ static void __init early_ioremap_page_table_range_init(pgd_t *pgd_base)
* Fixed mappings, only the page table structure has to be
* created - mappings will be set by set_fixmap():
*/
early_ioremap_clear();
vaddr = __fix_to_virt(__end_of_fixed_addresses - 1) & PMD_MASK;
end = (FIXADDR_TOP + PMD_SIZE - 1) & PMD_MASK;
page_table_range_init(vaddr, end, pgd_base);
@ -800,7 +842,7 @@ static void __init find_early_table_space(unsigned long end, int use_pse)
tables += PAGE_ALIGN(ptes * sizeof(pte_t));
/* for fixmap */
tables += PAGE_SIZE * 2;
tables += PAGE_ALIGN(__end_of_fixed_addresses * sizeof(pte_t));
/*
* RED-PEN putting page tables only on node 0 could