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author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-28 09:45:31 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-28 09:45:31 -0700 |
commit | f8245e91a5121acc435e509aa56cd04d445a74c7 (patch) | |
tree | 2228dd5b184174ee2091be77f0b5b71640f74e5c /arch | |
parent | b30fc14c5c94728baa42b7c17d83ea17185b5c40 (diff) | |
parent | 60817c9b31ef7897d60bca2f384cbc316a3fdd8b (diff) | |
download | op-kernel-dev-f8245e91a5121acc435e509aa56cd04d445a74c7.zip op-kernel-dev-f8245e91a5121acc435e509aa56cd04d445a74c7.tar.gz |
Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, memory hotplug: remove wrong -1 in calling init_memory_mapping()
x86: keep the /proc/meminfo page count correct
x86/uv: memory allocation at initialization
xen: fix Xen domU boot with batched mprotect
Diffstat (limited to 'arch')
-rw-r--r-- | arch/x86/kernel/genx2apic_uv_x.c | 7 | ||||
-rw-r--r-- | arch/x86/mm/init_64.c | 14 | ||||
-rw-r--r-- | arch/x86/xen/mmu.c | 18 |
3 files changed, 27 insertions, 12 deletions
diff --git a/arch/x86/kernel/genx2apic_uv_x.c b/arch/x86/kernel/genx2apic_uv_x.c index 680a065..2c7dbdb 100644 --- a/arch/x86/kernel/genx2apic_uv_x.c +++ b/arch/x86/kernel/genx2apic_uv_x.c @@ -15,7 +15,6 @@ #include <linux/ctype.h> #include <linux/init.h> #include <linux/sched.h> -#include <linux/bootmem.h> #include <linux/module.h> #include <linux/hardirq.h> #include <asm/smp.h> @@ -398,16 +397,16 @@ void __init uv_system_init(void) printk(KERN_DEBUG "UV: Found %d blades\n", uv_num_possible_blades()); bytes = sizeof(struct uv_blade_info) * uv_num_possible_blades(); - uv_blade_info = alloc_bootmem_pages(bytes); + uv_blade_info = kmalloc(bytes, GFP_KERNEL); get_lowmem_redirect(&lowmem_redir_base, &lowmem_redir_size); bytes = sizeof(uv_node_to_blade[0]) * num_possible_nodes(); - uv_node_to_blade = alloc_bootmem_pages(bytes); + uv_node_to_blade = kmalloc(bytes, GFP_KERNEL); memset(uv_node_to_blade, 255, bytes); bytes = sizeof(uv_cpu_to_blade[0]) * num_possible_cpus(); - uv_cpu_to_blade = alloc_bootmem_pages(bytes); + uv_cpu_to_blade = kmalloc(bytes, GFP_KERNEL); memset(uv_cpu_to_blade, 255, bytes); blade = 0; diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index b8e461d..f79a02f 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -350,8 +350,10 @@ phys_pte_init(pte_t *pte_page, unsigned long addr, unsigned long end, * pagetable pages as RO. So assume someone who pre-setup * these mappings are more intelligent. */ - if (pte_val(*pte)) + if (pte_val(*pte)) { + pages++; continue; + } if (0) printk(" pte=%p addr=%lx pte=%016lx\n", @@ -418,8 +420,10 @@ phys_pmd_init(pmd_t *pmd_page, unsigned long address, unsigned long end, * not differ with respect to page frame and * attributes. */ - if (page_size_mask & (1 << PG_LEVEL_2M)) + if (page_size_mask & (1 << PG_LEVEL_2M)) { + pages++; continue; + } new_prot = pte_pgprot(pte_clrhuge(*(pte_t *)pmd)); } @@ -499,8 +503,10 @@ phys_pud_init(pud_t *pud_page, unsigned long addr, unsigned long end, * not differ with respect to page frame and * attributes. */ - if (page_size_mask & (1 << PG_LEVEL_1G)) + if (page_size_mask & (1 << PG_LEVEL_1G)) { + pages++; continue; + } prot = pte_pgprot(pte_clrhuge(*(pte_t *)pud)); } @@ -831,7 +837,7 @@ int arch_add_memory(int nid, u64 start, u64 size) unsigned long nr_pages = size >> PAGE_SHIFT; int ret; - last_mapped_pfn = init_memory_mapping(start, start + size-1); + last_mapped_pfn = init_memory_mapping(start, start + size); if (last_mapped_pfn > max_pfn_mapped) max_pfn_mapped = last_mapped_pfn; diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index d4d52f5..aba77b2 100644 --- a/arch/x86/xen/mmu.c +++ b/arch/x86/xen/mmu.c @@ -246,11 +246,21 @@ xmaddr_t arbitrary_virt_to_machine(void *vaddr) { unsigned long address = (unsigned long)vaddr; unsigned int level; - pte_t *pte = lookup_address(address, &level); - unsigned offset = address & ~PAGE_MASK; + pte_t *pte; + unsigned offset; - BUG_ON(pte == NULL); + /* + * if the PFN is in the linear mapped vaddr range, we can just use + * the (quick) virt_to_machine() p2m lookup + */ + if (virt_addr_valid(vaddr)) + return virt_to_machine(vaddr); + /* otherwise we have to do a (slower) full page-table walk */ + + pte = lookup_address(address, &level); + BUG_ON(pte == NULL); + offset = address & ~PAGE_MASK; return XMADDR(((phys_addr_t)pte_mfn(*pte) << PAGE_SHIFT) + offset); } @@ -410,7 +420,7 @@ void xen_ptep_modify_prot_commit(struct mm_struct *mm, unsigned long addr, xen_mc_batch(); - u.ptr = virt_to_machine(ptep).maddr | MMU_PT_UPDATE_PRESERVE_AD; + u.ptr = arbitrary_virt_to_machine(ptep).maddr | MMU_PT_UPDATE_PRESERVE_AD; u.val = pte_val_ma(pte); xen_extend_mmu_update(&u); |