[Xen-devel] [PATCH] linux/x86_64: miscellaneous initialization code cleanup

["Jan Beulich" <jbeulich@xxxxxxxxxx>]

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxxxx>

Index: head-2007-02-08/arch/x86_64/kernel/setup-xen.c
===================================================================
--- head-2007-02-08.orig/arch/x86_64/kernel/setup-xen.c 2007-02-16 
14:04:35.000000000 +0100
+++ head-2007-02-08/arch/x86_64/kernel/setup-xen.c      2007-02-09 
12:42:52.000000000 +0100
@@ -90,9 +90,6 @@ EXPORT_SYMBOL(HYPERVISOR_shared_info);
 extern char hypercall_page[PAGE_SIZE];
 EXPORT_SYMBOL(hypercall_page);
 
-/* Allows setting of maximum possible memory size  */
-unsigned long xen_override_max_pfn;
-
 static int xen_panic_event(struct notifier_block *, unsigned long, void *);
 static struct notifier_block xen_panic_block = {
        xen_panic_event, NULL, 0 /* try to go last */
@@ -719,7 +716,6 @@ void __init setup_arch(char **cmdline_p)
        /* reserve ebda region */
        if (ebda_addr)
                reserve_bootmem_generic(ebda_addr, ebda_size);
-#endif
 
 #ifdef CONFIG_SMP
        /*
@@ -732,6 +728,7 @@ void __init setup_arch(char **cmdline_p)
        /* Reserve SMP trampoline */
        reserve_bootmem_generic(SMP_TRAMPOLINE_BASE, PAGE_SIZE);
 #endif
+#endif
 
 #ifdef CONFIG_ACPI_SLEEP
        /*
Index: head-2007-02-08/arch/x86_64/mm/init-xen.c
===================================================================
--- head-2007-02-08.orig/arch/x86_64/mm/init-xen.c      2007-02-16 
14:04:35.000000000 +0100
+++ head-2007-02-08/arch/x86_64/mm/init-xen.c   2007-02-16 14:04:58.000000000 
+0100
@@ -77,7 +77,7 @@ extern unsigned long start_pfn;
        (((mfn_to_pfn((addr) >> PAGE_SHIFT)) << PAGE_SHIFT) +   \
        __START_KERNEL_map)))
 
-static void early_make_page_readonly(void *va, unsigned int feature)
+static void __meminit early_make_page_readonly(void *va, unsigned int feature)
 {
        unsigned long addr, _va = (unsigned long)va;
        pte_t pte, *ptep;
@@ -377,15 +377,6 @@ __set_fixmap_user (enum fixed_addresses 
 
 unsigned long __initdata table_start, table_end; 
 
-unsigned long get_machine_pfn(unsigned long addr)
-{
-       pud_t* pud = pud_offset_k(NULL, addr);
-       pmd_t* pmd = pmd_offset(pud, addr);
-       pte_t *pte = pte_offset_kernel(pmd, addr);
-
-       return pte_mfn(*pte);
-} 
-
 static __meminit void *alloc_static_page(unsigned long *phys)
 {
        unsigned long va = (start_pfn << PAGE_SHIFT) + __START_KERNEL_map;
@@ -531,10 +522,6 @@ void __init xen_init_pt(void)
 {
        unsigned long addr, *page;
 
-       memset((void *)init_level4_pgt,   0, PAGE_SIZE);
-       memset((void *)level3_kernel_pgt, 0, PAGE_SIZE);
-       memset((void *)level2_kernel_pgt, 0, PAGE_SIZE);
-
        /* Find the initial pte page that was built for us. */
        page = (unsigned long *)xen_start_info->pt_base;
        addr = page[pgd_index(__START_KERNEL_map)];
@@ -595,7 +582,7 @@ void __init xen_init_pt(void)
                mk_kernel_pgd(__pa_symbol(level3_user_pgt)));
 }
 
-void __init extend_init_mapping(unsigned long tables_space)
+static void __init extend_init_mapping(unsigned long tables_space)
 {
        unsigned long va = __START_KERNEL_map;
        unsigned long phys, addr, *pte_page;



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