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| author | Ingo Molnar <mingo@elte.hu> | 2008-09-14 19:26:53 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-09-14 19:26:53 +0400 |
| commit | f81b691a3df09806385ea413c3a2ee094c705ca3 (patch) | |
| tree | 01c0d6d319fcbddc98171d06cfe8e742cd270455 /arch/x86/mm/init_64.c | |
| parent | 110e0358e7dfd9cc56d47077068f3680dae10b56 (diff) | |
| parent | adee14b2e1557d0a8559f29681732d05a89dfc35 (diff) | |
| download | linux-f81b691a3df09806385ea413c3a2ee094c705ca3.tar.xz | |
Merge commit 'v2.6.27-rc6' into x86/pat
Diffstat (limited to 'arch/x86/mm/init_64.c')
| -rw-r--r-- | arch/x86/mm/init_64.c | 36 |
1 files changed, 20 insertions, 16 deletions
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index a87ea0e4b3dc..d3746efb060d 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -241,7 +241,7 @@ static unsigned long __initdata table_start; static unsigned long __meminitdata table_end; static unsigned long __meminitdata table_top; -static __meminit void *alloc_low_page(unsigned long *phys) +static __ref void *alloc_low_page(unsigned long *phys) { unsigned long pfn = table_end++; void *adr; @@ -262,7 +262,7 @@ static __meminit void *alloc_low_page(unsigned long *phys) return adr; } -static __meminit void unmap_low_page(void *adr) +static __ref void unmap_low_page(void *adr) { if (after_bootmem) return; @@ -336,9 +336,12 @@ phys_pmd_init(pmd_t *pmd_page, unsigned long address, unsigned long end, } if (pmd_val(*pmd)) { - if (!pmd_large(*pmd)) + if (!pmd_large(*pmd)) { + spin_lock(&init_mm.page_table_lock); last_map_addr = phys_pte_update(pmd, address, - end); + end); + spin_unlock(&init_mm.page_table_lock); + } /* Count entries we're using from level2_ident_pgt */ if (start == 0) pages++; @@ -347,8 +350,10 @@ phys_pmd_init(pmd_t *pmd_page, unsigned long address, unsigned long end, if (page_size_mask & (1<<PG_LEVEL_2M)) { pages++; + spin_lock(&init_mm.page_table_lock); set_pte((pte_t *)pmd, pfn_pte(address >> PAGE_SHIFT, PAGE_KERNEL_LARGE)); + spin_unlock(&init_mm.page_table_lock); last_map_addr = (address & PMD_MASK) + PMD_SIZE; continue; } @@ -357,7 +362,9 @@ phys_pmd_init(pmd_t *pmd_page, unsigned long address, unsigned long end, last_map_addr = phys_pte_init(pte, address, end); unmap_low_page(pte); + spin_lock(&init_mm.page_table_lock); pmd_populate_kernel(&init_mm, pmd, __va(pte_phys)); + spin_unlock(&init_mm.page_table_lock); } update_page_count(PG_LEVEL_2M, pages); return last_map_addr; @@ -370,9 +377,7 @@ phys_pmd_update(pud_t *pud, unsigned long address, unsigned long end, pmd_t *pmd = pmd_offset(pud, 0); unsigned long last_map_addr; - spin_lock(&init_mm.page_table_lock); last_map_addr = phys_pmd_init(pmd, address, end, page_size_mask); - spin_unlock(&init_mm.page_table_lock); __flush_tlb_all(); return last_map_addr; } @@ -408,20 +413,21 @@ phys_pud_init(pud_t *pud_page, unsigned long addr, unsigned long end, if (page_size_mask & (1<<PG_LEVEL_1G)) { pages++; + spin_lock(&init_mm.page_table_lock); set_pte((pte_t *)pud, pfn_pte(addr >> PAGE_SHIFT, PAGE_KERNEL_LARGE)); + spin_unlock(&init_mm.page_table_lock); last_map_addr = (addr & PUD_MASK) + PUD_SIZE; continue; } pmd = alloc_low_page(&pmd_phys); - - spin_lock(&init_mm.page_table_lock); last_map_addr = phys_pmd_init(pmd, addr, end, page_size_mask); unmap_low_page(pmd); + + spin_lock(&init_mm.page_table_lock); pud_populate(&init_mm, pud, __va(pmd_phys)); spin_unlock(&init_mm.page_table_lock); - } __flush_tlb_all(); update_page_count(PG_LEVEL_1G, pages); @@ -513,16 +519,14 @@ static unsigned long __init kernel_physical_mapping_init(unsigned long start, continue; } - if (after_bootmem) - pud = pud_offset(pgd, start & PGDIR_MASK); - else - pud = alloc_low_page(&pud_phys); - + pud = alloc_low_page(&pud_phys); last_map_addr = phys_pud_init(pud, __pa(start), __pa(next), page_size_mask); unmap_low_page(pud); - pgd_populate(&init_mm, pgd_offset_k(start), - __va(pud_phys)); + + spin_lock(&init_mm.page_table_lock); + pgd_populate(&init_mm, pgd, __va(pud_phys)); + spin_unlock(&init_mm.page_table_lock); } return last_map_addr; |