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| author | Steve French <sfrench@us.ibm.com> | 2008-05-06 17:55:32 +0000 |
|---|---|---|
| committer | Steve French <sfrench@us.ibm.com> | 2008-05-06 17:55:32 +0000 |
| commit | a815752ac0ffdb910e92958d41d28f4fb28e5296 (patch) | |
| tree | a3aa16a282354da0debe8e3a3a7ed8aac6e54001 /arch/s390/mm/init.c | |
| parent | 5ade9deaaa3e1f7291467d97b238648e43eae15e (diff) | |
| parent | a15306365a16380f3bafee9e181ba01231d4acd7 (diff) | |
| download | linux-a815752ac0ffdb910e92958d41d28f4fb28e5296.tar.gz linux-a815752ac0ffdb910e92958d41d28f4fb28e5296.tar.bz2 linux-a815752ac0ffdb910e92958d41d28f4fb28e5296.zip | |
Merge branch 'master' of /pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'arch/s390/mm/init.c')
| -rw-r--r-- | arch/s390/mm/init.c | 25 |
1 files changed, 2 insertions, 23 deletions
diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c index 202c952a29b4..fa31de6ae97a 100644 --- a/arch/s390/mm/init.c +++ b/arch/s390/mm/init.c @@ -77,28 +77,6 @@ void show_mem(void) printk("%lu pages pagetables\n", global_page_state(NR_PAGETABLE)); } -static void __init setup_ro_region(void) -{ - pgd_t *pgd; - pud_t *pud; - pmd_t *pmd; - pte_t *pte; - pte_t new_pte; - unsigned long address, end; - - address = ((unsigned long)&_stext) & PAGE_MASK; - end = PFN_ALIGN((unsigned long)&_eshared); - - for (; address < end; address += PAGE_SIZE) { - pgd = pgd_offset_k(address); - pud = pud_offset(pgd, address); - pmd = pmd_offset(pud, address); - pte = pte_offset_kernel(pmd, address); - new_pte = mk_pte_phys(address, __pgprot(_PAGE_RO)); - *pte = new_pte; - } -} - /* * paging_init() sets up the page tables */ @@ -121,7 +99,6 @@ void __init paging_init(void) clear_table((unsigned long *) init_mm.pgd, pgd_type, sizeof(unsigned long)*2048); vmem_map_init(); - setup_ro_region(); /* enable virtual mapping in kernel mode */ __ctl_load(S390_lowcore.kernel_asce, 1, 1); @@ -129,6 +106,8 @@ void __init paging_init(void) __ctl_load(S390_lowcore.kernel_asce, 13, 13); __raw_local_irq_ssm(ssm_mask); + sparse_memory_present_with_active_regions(MAX_NUMNODES); + sparse_init(); memset(max_zone_pfns, 0, sizeof(max_zone_pfns)); #ifdef CONFIG_ZONE_DMA max_zone_pfns[ZONE_DMA] = PFN_DOWN(MAX_DMA_ADDRESS); |