Merge commit 'origin/master' into for-linus/xen/master

[karo-tx-linux.git] / arch / x86 / mm / highmem_32.c

diff --git a/arch/x86/mm/highmem_32.c b/arch/x86/mm/highmem_32.c
index 00f127c80b0e38fa50eec531e8e85c8d1f18fd6d..58f621e8191955c2e02016df1d8e99bec8e1ed8f 100644 (file)
--- a/arch/x86/mm/highmem_32.c
+++ b/arch/x86/mm/highmem_32.c
@@ -19,49 +19,6 @@ void kunmap(struct page *page)
        kunmap_high(page);
 }
 
-static void debug_kmap_atomic_prot(enum km_type type)
-{
-#ifdef CONFIG_DEBUG_HIGHMEM
-       static unsigned warn_count = 10;
-
-       if (unlikely(warn_count == 0))
-               return;
-
-       if (unlikely(in_interrupt())) {
-               if (in_irq()) {
-                       if (type != KM_IRQ0 && type != KM_IRQ1 &&
-                           type != KM_BIO_SRC_IRQ && type != KM_BIO_DST_IRQ &&
-                           type != KM_BOUNCE_READ) {
-                               WARN_ON(1);
-                               warn_count--;
-                       }
-               } else if (!irqs_disabled()) {  /* softirq */
-                       if (type != KM_IRQ0 && type != KM_IRQ1 &&
-                           type != KM_SOFTIRQ0 && type != KM_SOFTIRQ1 &&
-                           type != KM_SKB_SUNRPC_DATA &&
-                           type != KM_SKB_DATA_SOFTIRQ &&
-                           type != KM_BOUNCE_READ) {
-                               WARN_ON(1);
-                               warn_count--;
-                       }
-               }
-       }
-
-       if (type == KM_IRQ0 || type == KM_IRQ1 || type == KM_BOUNCE_READ ||
-                       type == KM_BIO_SRC_IRQ || type == KM_BIO_DST_IRQ) {
-               if (!irqs_disabled()) {
-                       WARN_ON(1);
-                       warn_count--;
-               }
-       } else if (type == KM_SOFTIRQ0 || type == KM_SOFTIRQ1) {
-               if (irq_count() == 0 && !irqs_disabled()) {
-                       WARN_ON(1);
-                       warn_count--;
-               }
-       }
-#endif
-}
-
 /*
  * kmap_atomic/kunmap_atomic is significantly faster than kmap/kunmap because
  * no global lock is needed and because the kmap code must perform a global TLB
@@ -81,13 +38,12 @@ void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot)
        if (!PageHighMem(page))
                return page_address(page);
 
-       debug_kmap_atomic_prot(type);
+       debug_kmap_atomic(type);
 
        idx = type + KM_TYPE_NR*smp_processor_id();
        vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
        BUG_ON(!pte_none(*(kmap_pte-idx)));
        set_pte(kmap_pte-idx, mk_pte(page, prot));
-       arch_flush_lazy_mmu_mode();
 
        return (void *)vaddr;
 }
@@ -117,26 +73,16 @@ void kunmap_atomic(void *kvaddr, enum km_type type)
 #endif
        }
 
-       arch_flush_lazy_mmu_mode();
        pagefault_enable();
 }
 
-/* This is the same as kmap_atomic() but can map memory that doesn't
+/*
+ * This is the same as kmap_atomic() but can map memory that doesn't
  * have a struct page associated with it.
  */
 void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
 {
-       enum fixed_addresses idx;
-       unsigned long vaddr;
-
-       pagefault_disable();
-
-       idx = type + KM_TYPE_NR*smp_processor_id();
-       vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
-       set_pte(kmap_pte-idx, pfn_pte(pfn, kmap_prot));
-       arch_flush_lazy_mmu_mode();
-
-       return (void*) vaddr;
+       return kmap_atomic_prot_pfn(pfn, type, kmap_prot);
 }
 EXPORT_SYMBOL_GPL(kmap_atomic_pfn); /* temporarily in use by i915 GEM until vmap */
 
@@ -158,7 +104,6 @@ EXPORT_SYMBOL(kunmap);
 EXPORT_SYMBOL(kmap_atomic);
 EXPORT_SYMBOL(kunmap_atomic);
 
-#ifdef CONFIG_NUMA
 void __init set_highmem_pages_init(void)
 {
        struct zone *zone;
@@ -182,11 +127,3 @@ void __init set_highmem_pages_init(void)
        }
        totalram_pages += totalhigh_pages;
 }
-#else
-void __init set_highmem_pages_init(void)
-{
-       add_highpages_with_active_regions(0, highstart_pfn, highend_pfn);
-
-       totalram_pages += totalhigh_pages;
-}
-#endif /* CONFIG_NUMA */