Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-xen-next

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-xen-next: (52 commits)
  xen: add balloon driver
  xen: allow compilation with non-flat memory
  xen: fold xen_sysexit into xen_iret
  xen: allow set_pte_at on init_mm to be lockless
  xen: disable preemption during tlb flush
  xen pvfb: Para-virtual framebuffer, keyboard and pointer driver
  xen: Add compatibility aliases for frontend drivers
  xen: Module autoprobing support for frontend drivers
  xen blkfront: Delay wait for block devices until after the disk is added
  xen/blkfront: use bdget_disk
  xen: Make xen-blkfront write its protocol ABI to xenstore
  xen: import arch generic part of xencomm
  xen: make grant table arch portable
  xen: replace callers of alloc_vm_area()/free_vm_area() with xen_ prefixed one
  xen: make include/xen/page.h portable moving those definitions under asm dir
  xen: add resend_irq_on_evtchn() definition into events.c
  Xen: make events.c portable for ia64/xen support
  xen: move events.c to drivers/xen for IA64/Xen support
  xen: move features.c from arch/x86/xen/features.c to drivers/xen
  xen: add missing definitions in include/xen/interface/vcpu.h which ia64/xen needs
  ...

1 files changed, 0 insertions, 204 deletions

diff --git a/arch/x86/mm/pgtable_32.c b/arch/x86/mm/pgtable_32.c
index 6fb9e7c6893f..9ee007be9142 100644
--- a/arch/x86/mm/pgtable_32.c
+++ b/arch/x86/mm/pgtable_32.c
@@ -173,210 +173,6 @@ void reserve_top_address(unsigned long reserve)
         __VMALLOC_RESERVE += reserve;
 }
 
-pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
-{
-        return (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
-}
-
-pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
-{
-        struct page *pte;
-
-#ifdef CONFIG_HIGHPTE
-        pte = alloc_pages(GFP_KERNEL|__GFP_HIGHMEM|__GFP_REPEAT|__GFP_ZERO, 0);
-#else
-        pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0);
-#endif
-        if (pte)
-                pgtable_page_ctor(pte);
-        return pte;
-}
-
-/*
- * List of all pgd's needed for non-PAE so it can invalidate entries
- * in both cached and uncached pgd's; not needed for PAE since the
- * kernel pmd is shared. If PAE were not to share the pmd a similar
- * tactic would be needed. This is essentially codepath-based locking
- * against pageattr.c; it is the unique case in which a valid change
- * of kernel pagetables can't be lazily synchronized by vmalloc faults.
- * vmalloc faults work because attached pagetables are never freed.
- * -- wli
- */
-static inline void pgd_list_add(pgd_t *pgd)
-{
-        struct page *page = virt_to_page(pgd);
-
-        list_add(&page->lru, &pgd_list);
-}
-
-static inline void pgd_list_del(pgd_t *pgd)
-{
-        struct page *page = virt_to_page(pgd);
-
-        list_del(&page->lru);
-}
-
-#define UNSHARED_PTRS_PER_PGD                           \
-        (SHARED_KERNEL_PMD ? USER_PTRS_PER_PGD : PTRS_PER_PGD)
-
-static void pgd_ctor(void *p)
-{
-        pgd_t *pgd = p;
-        unsigned long flags;
-
-        /* Clear usermode parts of PGD */
-        memset(pgd, 0, USER_PTRS_PER_PGD*sizeof(pgd_t));
-
-        spin_lock_irqsave(&pgd_lock, flags);
-
-        /* If the pgd points to a shared pagetable level (either the
-           ptes in non-PAE, or shared PMD in PAE), then just copy the
-           references from swapper_pg_dir. */
-        if (PAGETABLE_LEVELS == 2 ||
-            (PAGETABLE_LEVELS == 3 && SHARED_KERNEL_PMD)) {
-                clone_pgd_range(pgd + USER_PTRS_PER_PGD,
-                                swapper_pg_dir + USER_PTRS_PER_PGD,
-                                KERNEL_PGD_PTRS);
-                paravirt_alloc_pd_clone(__pa(pgd) >> PAGE_SHIFT,
-                                        __pa(swapper_pg_dir) >> PAGE_SHIFT,
-                                        USER_PTRS_PER_PGD,
-                                        KERNEL_PGD_PTRS);
-        }
-
-        /* list required to sync kernel mapping updates */
-        if (!SHARED_KERNEL_PMD)
-                pgd_list_add(pgd);
-
-        spin_unlock_irqrestore(&pgd_lock, flags);
-}
-
-static void pgd_dtor(void *pgd)
-{
-        unsigned long flags; /* can be called from interrupt context */
-
-        if (SHARED_KERNEL_PMD)
-                return;
-
-        spin_lock_irqsave(&pgd_lock, flags);
-        pgd_list_del(pgd);
-        spin_unlock_irqrestore(&pgd_lock, flags);
-}
-
-#ifdef CONFIG_X86_PAE
-/*
- * Mop up any pmd pages which may still be attached to the pgd.
- * Normally they will be freed by munmap/exit_mmap, but any pmd we
- * preallocate which never got a corresponding vma will need to be
- * freed manually.
- */
-static void pgd_mop_up_pmds(struct mm_struct *mm, pgd_t *pgdp)
-{
-        int i;
-
-        for(i = 0; i < UNSHARED_PTRS_PER_PGD; i++) {
-                pgd_t pgd = pgdp[i];
-
-                if (pgd_val(pgd) != 0) {
-                        pmd_t *pmd = (pmd_t *)pgd_page_vaddr(pgd);
-
-                        pgdp[i] = native_make_pgd(0);
-
-                        paravirt_release_pd(pgd_val(pgd) >> PAGE_SHIFT);
-                        pmd_free(mm, pmd);
-                }
-        }
-}
-
-/*
- * In PAE mode, we need to do a cr3 reload (=tlb flush) when
- * updating the top-level pagetable entries to guarantee the
- * processor notices the update.  Since this is expensive, and
- * all 4 top-level entries are used almost immediately in a
- * new process's life, we just pre-populate them here.
- *
- * Also, if we're in a paravirt environment where the kernel pmd is
- * not shared between pagetables (!SHARED_KERNEL_PMDS), we allocate
- * and initialize the kernel pmds here.
- */
-static int pgd_prepopulate_pmd(struct mm_struct *mm, pgd_t *pgd)
-{
-        pud_t *pud;
-        unsigned long addr;
-        int i;
-
-        pud = pud_offset(pgd, 0);
-        for (addr = i = 0; i < UNSHARED_PTRS_PER_PGD;
-             i++, pud++, addr += PUD_SIZE) {
-                pmd_t *pmd = pmd_alloc_one(mm, addr);
-
-                if (!pmd) {
-                        pgd_mop_up_pmds(mm, pgd);
-                        return 0;
-                }
-
-                if (i >= USER_PTRS_PER_PGD)
-                        memcpy(pmd, (pmd_t *)pgd_page_vaddr(swapper_pg_dir[i]),
-                               sizeof(pmd_t) * PTRS_PER_PMD);
-
-                pud_populate(mm, pud, pmd);
-        }
-
-        return 1;
-}
-#else  /* !CONFIG_X86_PAE */
-/* No need to prepopulate any pagetable entries in non-PAE modes. */
-static int pgd_prepopulate_pmd(struct mm_struct *mm, pgd_t *pgd)
-{
-        return 1;
-}
-
-static void pgd_mop_up_pmds(struct mm_struct *mm, pgd_t *pgdp)
-{
-}
-#endif  /* CONFIG_X86_PAE */
-
-pgd_t *pgd_alloc(struct mm_struct *mm)
-{
-        pgd_t *pgd = (pgd_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
-
-        /* so that alloc_pd can use it */
-        mm->pgd = pgd;
-        if (pgd)
-                pgd_ctor(pgd);
-
-        if (pgd && !pgd_prepopulate_pmd(mm, pgd)) {
-                pgd_dtor(pgd);
-                free_page((unsigned long)pgd);
-                pgd = NULL;
-        }
-
-        return pgd;
-}
-
-void pgd_free(struct mm_struct *mm, pgd_t *pgd)
-{
-        pgd_mop_up_pmds(mm, pgd);
-        pgd_dtor(pgd);
-        free_page((unsigned long)pgd);
-}
-
-void __pte_free_tlb(struct mmu_gather *tlb, struct page *pte)
-{
-        pgtable_page_dtor(pte);
-        paravirt_release_pt(page_to_pfn(pte));
-        tlb_remove_page(tlb, pte);
-}
-
-#ifdef CONFIG_X86_PAE
-
-void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd)
-{
-        paravirt_release_pd(__pa(pmd) >> PAGE_SHIFT);
-        tlb_remove_page(tlb, virt_to_page(pmd));
-}
-
-#endif
-
 int pmd_bad(pmd_t pmd)
 {
         WARN_ON_ONCE(pmd_bad_v1(pmd) != pmd_bad_v2(pmd));