x86: change early_ioremap to use slots instead of nesting

so we could remove the requirement that one needs to call
early_iounmap() in exactly reverse order of early_ioremap().

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 2 insertions, 2 deletions

diff --git a/include/asm-x86/fixmap_64.h b/include/asm-x86/fixmap_64.h
index 33df64fd0e18..dab4751d1307 100644
--- a/include/asm-x86/fixmap_64.h
+++ b/include/asm-x86/fixmap_64.h
@@ -65,10 +65,10 @@ enum fixed_addresses {
          * can have a single pgd entry and a single pte table:
          */
 #define NR_FIX_BTMAPS           64
-#define FIX_BTMAPS_NESTING      4
+#define FIX_BTMAPS_SLOTS        4
         FIX_BTMAP_END = __end_of_permanent_fixed_addresses + 256 -
                         (__end_of_permanent_fixed_addresses & 255),
-        FIX_BTMAP_BEGIN = FIX_BTMAP_END + NR_FIX_BTMAPS*FIX_BTMAPS_NESTING - 1,
+        FIX_BTMAP_BEGIN = FIX_BTMAP_END + NR_FIX_BTMAPS*FIX_BTMAPS_SLOTS - 1,
         __end_of_fixed_addresses
 };