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-rw-r--r--arch/x86/mm/init_64.c12
-rw-r--r--arch/x86/mm/pgtable.c14
-rw-r--r--arch/x86/mm/pgtable_32.c14
-rw-r--r--include/asm-x86/fixmap.h2
4 files changed, 17 insertions, 25 deletions
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 156e6d7b0e3..e5f53194985 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -213,18 +213,6 @@ void __init cleanup_highmap(void)
}
}
-/* NOTE: this is meant to be run only at boot */
-void __set_fixmap(enum fixed_addresses idx, unsigned long phys, pgprot_t prot)
-{
- unsigned long address = __fix_to_virt(idx);
-
- if (idx >= __end_of_fixed_addresses) {
- printk(KERN_ERR "Invalid __set_fixmap\n");
- return;
- }
- set_pte_phys(address, phys, prot);
-}
-
static unsigned long __initdata table_start;
static unsigned long __meminitdata table_end;
diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index 50159764f69..3ebebe480b5 100644
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -274,3 +274,17 @@ int ptep_clear_flush_young(struct vm_area_struct *vma,
return young;
}
+
+int fixmaps_set;
+
+void __set_fixmap (enum fixed_addresses idx, unsigned long phys, pgprot_t flags)
+{
+ unsigned long address = __fix_to_virt(idx);
+
+ if (idx >= __end_of_fixed_addresses) {
+ BUG();
+ return;
+ }
+ set_pte_pfn(address, phys >> PAGE_SHIFT, flags);
+ fixmaps_set++;
+}
diff --git a/arch/x86/mm/pgtable_32.c b/arch/x86/mm/pgtable_32.c
index 369cf065b6a..3f97c3c8728 100644
--- a/arch/x86/mm/pgtable_32.c
+++ b/arch/x86/mm/pgtable_32.c
@@ -145,18 +145,6 @@ static int fixmaps;
unsigned long __FIXADDR_TOP = 0xfffff000;
EXPORT_SYMBOL(__FIXADDR_TOP);
-void __set_fixmap (enum fixed_addresses idx, unsigned long phys, pgprot_t flags)
-{
- unsigned long address = __fix_to_virt(idx);
-
- if (idx >= __end_of_fixed_addresses) {
- BUG();
- return;
- }
- set_pte_pfn(address, phys >> PAGE_SHIFT, flags);
- fixmaps++;
-}
-
/**
* reserve_top_address - reserves a hole in the top of kernel address space
* @reserve - size of hole to reserve
@@ -166,7 +154,7 @@ void __set_fixmap (enum fixed_addresses idx, unsigned long phys, pgprot_t flags)
*/
void reserve_top_address(unsigned long reserve)
{
- BUG_ON(fixmaps > 0);
+ BUG_ON(fixmaps_set > 0);
printk(KERN_INFO "Reserving virtual address space above 0x%08x\n",
(int)-reserve);
__FIXADDR_TOP = -reserve - PAGE_SIZE;
diff --git a/include/asm-x86/fixmap.h b/include/asm-x86/fixmap.h
index 01b0f98f992..934d6b49b53 100644
--- a/include/asm-x86/fixmap.h
+++ b/include/asm-x86/fixmap.h
@@ -7,6 +7,8 @@
# include "fixmap_64.h"
#endif
+extern int fixmaps_set;
+
extern void __set_fixmap(enum fixed_addresses idx,
unsigned long phys, pgprot_t flags);
#define set_fixmap(idx, phys) \