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 522db5e3d0bf973e54ca71e33201454c4aadefda..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;
 }
@@ -117,7 +73,6 @@ void kunmap_atomic(void *kvaddr, enum km_type type)
 #endif
        }
 
-       arch_flush_lazy_mmu_mode();
        pagefault_enable();
 }