fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / arch / mips / mm / highmem.c

diff --git a/arch/mips/mm/highmem.c b/arch/mips/mm/highmem.c
index 1f7b37b..675502a 100644 (file)
--- a/arch/mips/mm/highmem.c
+++ b/arch/mips/mm/highmem.c
@@ -1,4 +1,3 @@
-#include <linux/config.h>
 #include <linux/module.h>
 #include <linux/highmem.h>
 #include <asm/tlbflush.h>
@@ -40,7 +39,7 @@ void *__kmap_atomic(struct page *page, enum km_type type)
        unsigned long vaddr;
 
        /* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */
-       inc_preempt_count();
+       pagefault_disable();
        if (!PageHighMem(page))
                return page_address(page);
 
@@ -63,8 +62,7 @@ void __kunmap_atomic(void *kvaddr, enum km_type type)
        enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
 
        if (vaddr < FIXADDR_START) { // FIXME
-               dec_preempt_count();
-               preempt_check_resched();
+               pagefault_enable();
                return;
        }
 
@@ -79,10 +77,10 @@ void __kunmap_atomic(void *kvaddr, enum km_type type)
        local_flush_tlb_one(vaddr);
 #endif
 
-       dec_preempt_count();
-       preempt_check_resched();
+       pagefault_enable();
 }
 
+#ifndef CONFIG_LIMITED_DMA
 /*
  * This is the same as kmap_atomic() but can map memory that doesn't
  * have a struct page associated with it.
@@ -92,7 +90,7 @@ void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
        enum fixed_addresses idx;
        unsigned long vaddr;
 
-       inc_preempt_count();
+       pagefault_disable();
 
        idx = type + KM_TYPE_NR*smp_processor_id();
        vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
@@ -101,6 +99,7 @@ void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
 
        return (void*) vaddr;
 }
+#endif /* CONFIG_LIMITED_DMA */
 
 struct page *__kmap_atomic_to_page(void *ptr)
 {